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Asteroids/webroot/index.js

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JavaScript
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/*
* ATTENTION: The "eval" devtool has been used (maybe by default in mode: "development").
* This devtool is neither made for production nor for readable output files.
* It uses "eval()" calls to create a separate source file in the browser devtools.
* If you are trying to read the output file, select a different devtool (https://webpack.js.org/configuration/devtool/)
* or disable the default devtool with "devtool: false".
* If you are looking for production-ready output files, see mode: "production" (https://webpack.js.org/configuration/mode/).
*/
/******/ (() => { // webpackBootstrap
/******/ var __webpack_modules__ = ({
/***/ "./node_modules/acorn/dist/acorn.js":
/*!******************************************!*\
!*** ./node_modules/acorn/dist/acorn.js ***!
\******************************************/
/***/ (function(__unused_webpack_module, exports) {
eval("(function (global, factory) {\n true ? factory(exports) :\n 0;\n})(this, (function (exports) { 'use strict';\n\n // This file was generated. Do not modify manually!\n var astralIdentifierCodes = [509, 0, 227, 0, 150, 4, 294, 9, 1368, 2, 2, 1, 6, 3, 41, 2, 5, 0, 166, 1, 574, 3, 9, 9, 370, 1, 154, 10, 50, 3, 123, 2, 54, 14, 32, 10, 3, 1, 11, 3, 46, 10, 8, 0, 46, 9, 7, 2, 37, 13, 2, 9, 6, 1, 45, 0, 13, 2, 49, 13, 9, 3, 2, 11, 83, 11, 7, 0, 161, 11, 6, 9, 7, 3, 56, 1, 2, 6, 3, 1, 3, 2, 10, 0, 11, 1, 3, 6, 4, 4, 193, 17, 10, 9, 5, 0, 82, 19, 13, 9, 214, 6, 3, 8, 28, 1, 83, 16, 16, 9, 82, 12, 9, 9, 84, 14, 5, 9, 243, 14, 166, 9, 71, 5, 2, 1, 3, 3, 2, 0, 2, 1, 13, 9, 120, 6, 3, 6, 4, 0, 29, 9, 41, 6, 2, 3, 9, 0, 10, 10, 47, 15, 406, 7, 2, 7, 17, 9, 57, 21, 2, 13, 123, 5, 4, 0, 2, 1, 2, 6, 2, 0, 9, 9, 49, 4, 2, 1, 2, 4, 9, 9, 330, 3, 19306, 9, 87, 9, 39, 4, 60, 6, 26, 9, 1014, 0, 2, 54, 8, 3, 82, 0, 12, 1, 19628, 1, 4706, 45, 3, 22, 543, 4, 4, 5, 9, 7, 3, 6, 31, 3, 149, 2, 1418, 49, 513, 54, 5, 49, 9, 0, 15, 0, 23, 4, 2, 14, 1361, 6, 2, 16, 3, 6, 2, 1, 2, 4, 262, 6, 10, 9, 357, 0, 62, 13, 1495, 6, 110, 6, 6, 9, 4759, 9, 787719, 239];\n\n // This file was generated. Do not modify manually!\n var astralIdentifierStartCodes = [0, 11, 2, 25, 2, 18, 2, 1, 2, 14, 3, 13, 35, 122, 70, 52, 268, 28, 4, 48, 48, 31, 14, 29, 6, 37, 11, 29, 3, 35, 5, 7, 2, 4, 43, 157, 19, 35, 5, 35, 5, 39, 9, 51, 13, 10, 2, 14, 2, 6, 2, 1, 2, 10, 2, 14, 2, 6, 2, 1, 68, 310, 10, 21, 11, 7, 25, 5, 2, 41, 2, 8, 70, 5, 3, 0, 2, 43, 2, 1, 4, 0, 3, 22, 11, 22, 10, 30, 66, 18, 2, 1, 11, 21, 11, 25, 71, 55, 7, 1, 65, 0, 16, 3, 2, 2, 2, 28, 43, 28, 4, 28, 36, 7, 2, 27, 28, 53, 11, 21, 11, 18, 14, 17, 111, 72, 56, 50, 14, 50, 14, 35, 349, 41, 7, 1, 79, 28, 11, 0, 9, 21, 43, 17, 47, 20, 28, 22, 13, 52, 58, 1, 3, 0, 14, 44, 33, 24, 27, 35, 30, 0, 3, 0, 9, 34, 4, 0, 13, 47, 15, 3, 22, 0, 2, 0, 36, 17, 2, 24, 85, 6, 2, 0, 2, 3, 2, 14, 2, 9, 8, 46, 39, 7, 3, 1, 3, 21, 2, 6, 2, 1, 2, 4, 4, 0, 19, 0, 13, 4, 159, 52, 19, 3, 21, 2, 31, 47, 21, 1, 2, 0, 185, 46, 42, 3, 37, 47, 21, 0, 60, 42, 14, 0, 72, 26, 38, 6, 186, 43, 117, 63, 32, 7, 3, 0, 3, 7, 2, 1, 2, 23, 16, 0, 2, 0, 95, 7, 3, 38, 17, 0, 2, 0, 29, 0, 11, 39, 8, 0, 22, 0, 12, 45, 20, 0, 19, 72, 264, 8, 2, 36, 18, 0, 50, 29, 113, 6, 2, 1, 2, 37, 22, 0, 26, 5, 2, 1, 2, 31, 15, 0, 328, 18, 190, 0, 80, 921, 103, 110, 18, 195, 2637, 96, 16, 1070, 4050, 582, 8634, 568, 8, 30, 18, 78, 18, 29, 19, 47, 17, 3, 32, 20, 6, 18, 689, 63, 129, 74, 6, 0, 67, 12, 65, 1, 2, 0, 29, 6135, 9, 1237, 43, 8, 8936, 3, 2, 6, 2, 1, 2, 290, 46, 2, 18, 3, 9, 395, 2309, 106, 6, 12, 4, 8, 8, 9, 5991, 84, 2, 70, 2, 1, 3, 0, 3, 1, 3, 3, 2, 11, 2, 0, 2, 6, 2, 64, 2, 3, 3, 7, 2, 6, 2, 27, 2, 3, 2, 4, 2, 0, 4, 6, 2, 339, 3, 24, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 7, 1845, 30, 482, 44, 11, 6, 17, 0, 322, 29, 19, 43, 1269, 6, 2, 3, 2, 1, 2, 14, 2, 196, 60, 67, 8, 0, 1205, 3, 2, 26, 2, 1, 2, 0, 3, 0, 2, 9, 2, 3, 2, 0, 2, 0, 7, 0, 5, 0, 2, 0, 2, 0, 2, 2, 2, 1, 2, 0, 3, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 3, 3, 2, 6, 2, 3, 2, 3, 2, 0, 2, 9, 2, 16, 6, 2, 2, 4, 2, 16, 4421, 42719, 33, 4152, 8, 221, 3, 5761, 15, 7472, 3104, 541, 1507, 4938];\n\n // This file was generated. Do not modify manually!\n var nonASCIIidentifierChars = \"\\u200c\\u200d\\xb7\\u0300-\\u036f\\u0387\\u0483-\\u0487\\u0591-\\u05bd\\u05bf\\u05c1\\u05c2\\u05c4\\u05c5\\u05c7\\u0610-\\u061a\\u064b-\\u0669\\u0670\\u06d6-\\u06dc\\u06df-\\u06e4\\u06e7\\u06e8\\u06ea-\\u06ed\\u06f0-\\u06f9\\u0711\\u0730-\\u074a\\u07a6-\\u07b0\\u07c0-\\u07c9\\u07eb-\\u07f3\\u07fd\\u0816-\\u0819\\u081b-\\u0823\\u0825-\\u0827\\u0829-\\u082d\\u0859-\\u085b\\u0898-\\u089f\\u08ca-\\u08e1\\u08e3-\\u0903\\u093a-\\u093c\\u093e-\\u094f\\u0951-\\u0957\\u0962\\u0963\\u0966-\\u096f\\u0981-\\u0983\\u09bc\\u09be-\\u09c4\\u09c7\\u09c8\\u09cb-\\u09cd\\u09d7\\u09e2\\u09e3\\u09e6-\\u09ef\\u09fe\\u0a01-\\u0a03\\u0a3c\\u0a3e-\\u0a42\\u0a47\\u0a48\\u0a4b-\\u0a4d\\u0a51\\u0a66-\\u0a71\\u0a75\\u0a81-\\u0a83\\u0abc\\u0abe-\\u0ac5\\u0ac7-\\u0ac9\\u0acb-\\u0acd\\u0ae2\\u0ae3\\u0ae6-\\u0aef\\u0afa-\\u0aff\\u0b01-\\u0b03\\u0b3c\\u0b3e-\\u0b44\\u0b47\\u0b48\\u0b4b-\\u0b4d\\u0b55-\\u0b57\\u0b62\\u0b63\\u0b66-\\u0b6f\\u0b82\\u0bbe-\\u0bc2\\u0bc6-\\u0bc8\\u0bca-\\u0bcd\\u0bd7\\u0be6-\\u0bef\\u0c00-\\u0c04\\u0c3c\\u0c3e-\\u0c44\\u0c46-\\u0c48\\u0c4a-\\u0c4d\\u0c55\\u0c56\\u0c62\\u0c63\\u0c66-\\u0c6f\\u0c81-\\u0c83\\u0cbc\\u0cbe-\\u0cc4\\u0cc6-\\u0cc8\\u0cca-\\u0ccd\\u0cd5\\u0cd6\\u0ce2\\u0ce3\\u0ce6-\\u0cef\\u0d00-\\u0d03\\u0d3b\\u0d3c\\u0d3e-\\u0d44\\u0d46-\\u0d48\\u0d4a-\\u0d4d\\u0d57\\u0d62\\u0d63\\u0d66-\\u0d6f\\u0d81-\\u0d83\\u0dca\\u0dcf-\\u0dd4\\u0dd6\\u0dd8-\\u0ddf\\u0de6-\\u0def\\u0df2\\u0df3\\u0e31\\u0e34-\\u0e3a\\u0e47-\\u0e4e\\u0e50-\\u0e59\\u0eb1\\u0eb4-\\u0ebc\\u0ec8-\\u0ecd\\u0ed0-\\u0ed9\\u0f18\\u0f19\\u0f20-\\u0f29\\u0f35\\u0f37\\u0f39\\u0f3e\\u0f3f\\u0f71-\\u0f84\\u0f86\\u0f87\\u0f8d-\\u0f97\\u0f99-\\u0fbc\\u0fc6\\u102b-\\u103e\\u1040-\\u1049\\u1056-\\u1059\\u105e-\\u1060\\u1062-\\u1064\\u1067-\\u106d\\u1071-\\u1074\\u1082-\\u108d\\u108f-\\u109d\\u135d-\\u135f\\u1369-\\u1371\\u1712-\\u1715\\u1732-\\u1734\\u1752\\u1753\\u1772\\u1773\\u17b4-\\u17d3\\u17dd\\u17e0-\\u17e9\\u180b-\\u180d\\u180f-\\u1819\\u18a9\\u1920-\\u192b\\u1930-\\u193b\\u1946-\\u194f\\u19d0-\\u19da\\u1a17-\\u1a1b\\u1a55-\\u1a5e\\u1a60-\\u1a7c\\u1a7f-\\u1a89\\u1a90-\\u1a99\\u1ab0-\\u1abd\\u1abf-\\u1ace\\u1b00-\\u1b04\\u1b34-\\u1b44\\u1b50-\\u1b59\\u1b6b-\\u1b73\\u1b80-\\u1b82\\u1ba1-\\u1bad\\u1bb0-\\u1bb9\\u1be6-\\u1bf3\\u1c24-\\u1c37\\u1c40-\\u1c49\\u1c50-\\u1c59\\u1cd0-\\u1cd2\\u1cd4-\\u1ce8\\u1ced\\u1cf4\\u1cf7-\\u1cf9\\u1dc0-\\u1dff\\u203f\\u2040\\u2054\\u20d0-\\u20dc\\u20e1\\u20e5-\\u20f0\\u2cef-\\u2cf1\\u2d7f\\u2de0-\\u2dff\\u302a-\\u302f\\u3099\\u309a\\ua620-\\ua629\\ua66f\\ua674-\\ua67d\\ua69e\\ua69f\\ua6f0\\ua6f1\\ua802\\ua806\\ua80b\\ua823-\\ua827\\ua82c\\ua880\\ua881\\ua8b4-\\ua8c5\\ua8d0-\\ua8d9\\ua8e0-\\ua8f1\\ua8ff-\\ua909\\ua926-\\ua92d\\ua947-\\ua953\\ua980-\\ua983\\ua9b3-\\ua9c0\\ua9d0-\\ua9d9\\ua9e5\\ua9f0-\\ua9f9\\uaa29-\\uaa36\\uaa43\\uaa4c\\uaa4d\\uaa50-\\uaa59\\uaa7b-\\uaa7d\\uaab0\\uaab2-\\uaab4\\uaab7\\uaab8\\uaabe\\uaabf\\uaac1\\uaaeb-\\uaaef\\uaaf5\\uaaf6\\uabe3-\\uabea\\uabec\\uabed\\uabf0-\\uabf9\\ufb1e\\ufe00-\\ufe0f\\ufe20-\\ufe2f\\ufe33\\ufe34\\ufe4d-\\ufe4f\\uff10-\\uff19\\uff3f\";\n\n // This file was generated. Do not modify manually!\n var nonASCIIidentifierStartChars = 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// These are a run-length and offset encoded representation of the\n\n // Reserved word lists for various dialects of the language\n\n var reservedWords = {\n 3: \"abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile\",\n 5: \"class enum extends super const export import\",\n 6: \"enum\",\n strict: \"implements interface let package private protected public static yield\",\n strictBind: \"eval arguments\"\n };\n\n // And the keywords\n\n var ecma5AndLessKeywords = \"break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this\";\n\n var keywords$1 = {\n 5: ecma5AndLessKeywords,\n \"5module\": ecma5AndLessKeywords + \" export import\",\n 6: ecma5AndLessKeywords + \" const class extends export import super\"\n };\n\n var keywordRelationalOperator = /^in(stanceof)?$/;\n\n // ## Character categories\n\n var nonASCIIidentifierStart = new RegExp(\"[\" + nonASCIIidentifierStartChars + \"]\");\n var nonASCIIidentifier = new RegExp(\"[\" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + \"]\");\n\n // This has a complexity linear to the value of the code. The\n // assumption is that looking up astral identifier characters is\n // rare.\n function isInAstralSet(code, set) {\n var pos = 0x10000;\n for (var i = 0; i < set.length; i += 2) {\n pos += set[i];\n if (pos > code) { return false }\n pos += set[i + 1];\n if (pos >= code) { return true }\n }\n }\n\n // Test whether a given character code starts an identifier.\n\n function isIdentifierStart(code, astral) {\n if (code < 65) { return code === 36 }\n if (code < 91) { return true }\n if (code < 97) { return code === 95 }\n if (code < 123) { return true }\n if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code)) }\n if (astral === false) { return false }\n return isInAstralSet(code, astralIdentifierStartCodes)\n }\n\n // Test whether a given character is part of an identifier.\n\n function isIdentifierChar(code, astral) {\n if (code < 48) { return code === 36 }\n if (code < 58) { return true }\n if (code < 65) { return false }\n if (code < 91) { return true }\n if (code < 97) { return code === 95 }\n if (code < 123) { return true }\n if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code)) }\n if (astral === false) { return false }\n return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes)\n }\n\n // ## Token types\n\n // The assignment of fine-grained, information-carrying type objects\n // allows the tokenizer to store the information it has about a\n // token in a way that is very cheap for the parser to look up.\n\n // All token type variables start with an underscore, to make them\n // easy to recognize.\n\n // The `beforeExpr` property is used to disambiguate between regular\n // expressions and divisions. It is set on all token types that can\n // be followed by an expression (thus, a slash after them would be a\n // regular expression).\n //\n // The `startsExpr` property is used to check if the token ends a\n // `yield` expression. It is set on all token types that either can\n // directly start an expression (like a quotation mark) or can\n // continue an expression (like the body of a string).\n //\n // `isLoop` marks a keyword as starting a loop, which is important\n // to know when parsing a label, in order to allow or disallow\n // continue jumps to that label.\n\n var TokenType = function TokenType(label, conf) {\n if ( conf === void 0 ) conf = {};\n\n this.label = label;\n this.keyword = conf.keyword;\n this.beforeExpr = !!conf.beforeExpr;\n this.startsExpr = !!conf.startsExpr;\n this.isLoop = !!conf.isLoop;\n this.isAssign = !!conf.isAssign;\n this.prefix = !!conf.prefix;\n this.postfix = !!conf.postfix;\n this.binop = conf.binop || null;\n this.updateContext = null;\n };\n\n function binop(name, prec) {\n return new TokenType(name, {beforeExpr: true, binop: prec})\n }\n var beforeExpr = {beforeExpr: true}, startsExpr = {startsExpr: true};\n\n // Map keyword names to token types.\n\n var keywords = {};\n\n // Succinct definitions of keyword token types\n function kw(name, options) {\n if ( options === void 0 ) options = {};\n\n options.keyword = name;\n return keywords[name] = new TokenType(name, options)\n }\n\n var types$1 = {\n num: new TokenType(\"num\", startsExpr),\n regexp: new TokenType(\"regexp\", startsExpr),\n string: new TokenType(\"string\", startsExpr),\n name: new TokenType(\"name\", startsExpr),\n privateId: new TokenType(\"privateId\", startsExpr),\n eof: new TokenType(\"eof\"),\n\n // Punctuation token types.\n bracketL: new TokenType(\"[\", {beforeExpr: true, startsExpr: true}),\n bracketR: new TokenType(\"]\"),\n braceL: new TokenType(\"{\", {beforeExpr: true, startsExpr: true}),\n braceR: new TokenType(\"}\"),\n parenL: new TokenType(\"(\", {beforeExpr: true, startsExpr: true}),\n parenR: new TokenType(\")\"),\n comma: new TokenType(\",\", beforeExpr),\n semi: new TokenType(\";\", beforeExpr),\n colon: new TokenType(\":\", beforeExpr),\n dot: new TokenType(\".\"),\n question: new TokenType(\"?\", beforeExpr),\n questionDot: new TokenType(\"?.\"),\n arrow: new TokenType(\"=>\", beforeExpr),\n template: new TokenType(\"template\"),\n invalidTemplate: new TokenType(\"invalidTemplate\"),\n ellipsis: new TokenType(\"...\", beforeExpr),\n backQuote: new TokenType(\"`\", startsExpr),\n dollarBraceL: new TokenType(\"${\", {beforeExpr: true, startsExpr: true}),\n\n // Operators. These carry several kinds of properties to help the\n // parser use them properly (the presence of these properties is\n // what categorizes them as operators).\n //\n // `binop`, when present, specifies that this operator is a binary\n // operator, and will refer to its precedence.\n //\n // `prefix` and `postfix` mark the operator as a prefix or postfix\n // unary operator.\n //\n // `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as\n // binary operators with a very low precedence, that should result\n // in AssignmentExpression nodes.\n\n eq: new TokenType(\"=\", {beforeExpr: true, isAssign: true}),\n assign: new TokenType(\"_=\", {beforeExpr: true, isAssign: true}),\n incDec: new TokenType(\"++/--\", {prefix: true, postfix: true, startsExpr: true}),\n prefix: new TokenType(\"!/~\", {beforeExpr: true, prefix: true, startsExpr: true}),\n logicalOR: binop(\"||\", 1),\n logicalAND: binop(\"&&\", 2),\n bitwiseOR: binop(\"|\", 3),\n bitwiseXOR: binop(\"^\", 4),\n bitwiseAND: binop(\"&\", 5),\n equality: binop(\"==/!=/===/!==\", 6),\n relational: binop(\"</>/<=/>=\", 7),\n bitShift: binop(\"<</>>/>>>\", 8),\n plusMin: new TokenType(\"+/-\", {beforeExpr: true, binop: 9, prefix: true, startsExpr: true}),\n modulo: binop(\"%\", 10),\n star: binop(\"*\", 10),\n slash: binop(\"/\", 10),\n starstar: new TokenType(\"**\", {beforeExpr: true}),\n coalesce: binop(\"??\", 1),\n\n // Keyword token types.\n _break: kw(\"break\"),\n _case: kw(\"case\", beforeExpr),\n _catch: kw(\"catch\"),\n _continue: kw(\"continue\"),\n _debugger: kw(\"debugger\"),\n _default: kw(\"default\", beforeExpr),\n _do: kw(\"do\", {isLoop: true, beforeExpr: true}),\n _else: kw(\"else\", beforeExpr),\n _finally: kw(\"finally\"),\n _for: kw(\"for\", {isLoop: true}),\n _function: kw(\"function\", startsExpr),\n _if: kw(\"if\"),\n _return: kw(\"return\", beforeExpr),\n _switch: kw(\"switch\"),\n _throw: kw(\"throw\", beforeExpr),\n _try: kw(\"try\"),\n _var: kw(\"var\"),\n _const: kw(\"const\"),\n _while: kw(\"while\", {isLoop: true}),\n _with: kw(\"with\"),\n _new: kw(\"new\", {beforeExpr: true, startsExpr: true}),\n _this: kw(\"this\", startsExpr),\n _super: kw(\"super\", startsExpr),\n _class: kw(\"class\", startsExpr),\n _extends: kw(\"extends\", beforeExpr),\n _export: kw(\"export\"),\n _import: kw(\"import\", startsExpr),\n _null: kw(\"null\", startsExpr),\n _true: kw(\"true\", startsExpr),\n _false: kw(\"false\", startsExpr),\n _in: kw(\"in\", {beforeExpr: true, binop: 7}),\n _instanceof: kw(\"instanceof\", {beforeExpr: true, binop: 7}),\n _typeof: kw(\"typeof\", {beforeExpr: true, prefix: true, startsExpr: true}),\n _void: kw(\"void\", {beforeExpr: true, prefix: true, startsExpr: true}),\n _delete: kw(\"delete\", {beforeExpr: true, prefix: true, startsExpr: true})\n };\n\n // Matches a whole line break (where CRLF is considered a single\n // line break). Used to count lines.\n\n var lineBreak = /\\r\\n?|\\n|\\u2028|\\u2029/;\n var lineBreakG = new RegExp(lineBreak.source, \"g\");\n\n function isNewLine(code) {\n return code === 10 || code === 13 || code === 0x2028 || code === 0x2029\n }\n\n function nextLineBreak(code, from, end) {\n if ( end === void 0 ) end = code.length;\n\n for (var i = from; i < end; i++) {\n var next = code.charCodeAt(i);\n if (isNewLine(next))\n { return i < end - 1 && next === 13 && code.charCodeAt(i + 1) === 10 ? i + 2 : i + 1 }\n }\n return -1\n }\n\n var nonASCIIwhitespace = /[\\u1680\\u2000-\\u200a\\u202f\\u205f\\u3000\\ufeff]/;\n\n var skipWhiteSpace = /(?:\\s|\\/\\/.*|\\/\\*[^]*?\\*\\/)*/g;\n\n var ref = Object.prototype;\n var hasOwnProperty = ref.hasOwnProperty;\n var toString = ref.toString;\n\n var hasOwn = Object.hasOwn || (function (obj, propName) { return (\n hasOwnProperty.call(obj, propName)\n ); });\n\n var isArray = Array.isArray || (function (obj) { return (\n toString.call(obj) === \"[object Array]\"\n ); });\n\n function wordsRegexp(words) {\n return new RegExp(\"^(?:\" + words.replace(/ /g, \"|\") + \")$\")\n }\n\n function codePointToString(code) {\n // UTF-16 Decoding\n if (code <= 0xFFFF) { return String.fromCharCode(code) }\n code -= 0x10000;\n return String.fromCharCode((code >> 10) + 0xD800, (code & 1023) + 0xDC00)\n }\n\n var loneSurrogate = /(?:[\\uD800-\\uDBFF](?![\\uDC00-\\uDFFF])|(?:[^\\uD800-\\uDBFF]|^)[\\uDC00-\\uDFFF])/;\n\n // These are used when `options.locations` is on, for the\n // `startLoc` and `endLoc` properties.\n\n var Position = function Position(line, col) {\n this.line = line;\n this.column = col;\n };\n\n Position.prototype.offset = function offset (n) {\n return new Position(this.line, this.column + n)\n };\n\n var SourceLocation = function SourceLocation(p, start, end) {\n this.start = start;\n this.end = end;\n if (p.sourceFile !== null) { this.source = p.sourceFile; }\n };\n\n // The `getLineInfo` function is mostly useful when the\n // `locations` option is off (for performance reasons) and you\n // want to find the line/column position for a given character\n // offset. `input` should be the code string that the offset refers\n // into.\n\n function getLineInfo(input, offset) {\n for (var line = 1, cur = 0;;) {\n var nextBreak = nextLineBreak(input, cur, offset);\n if (nextBreak < 0) { return new Position(line, offset - cur) }\n ++line;\n cur = nextBreak;\n }\n }\n\n // A second argument must be given to configure the parser process.\n // These options are recognized (only `ecmaVersion` is required):\n\n var defaultOptions = {\n // `ecmaVersion` indicates the ECMAScript version to parse. Must be\n // either 3, 5, 6 (or 2015), 7 (2016), 8 (2017), 9 (2018), 10\n // (2019), 11 (2020), 12 (2021), 13 (2022), 14 (2023), or `\"latest\"`\n // (the latest version the library supports). This influences\n // support for strict mode, the set of reserved words, and support\n // for new syntax features.\n ecmaVersion: null,\n // `sourceType` indicates the mode the code should be parsed in.\n // Can be either `\"script\"` or `\"module\"`. This influences global\n // strict mode and parsing of `import` and `export` declarations.\n sourceType: \"script\",\n // `onInsertedSemicolon` can be a callback that will be called\n // when a semicolon is automatically inserted. It will be passed\n // the position of the comma as an offset, and if `locations` is\n // enabled, it is given the location as a `{line, column}` object\n // as second argument.\n onInsertedSemicolon: null,\n // `onTrailingComma` is similar to `onInsertedSemicolon`, but for\n // trailing commas.\n onTrailingComma: null,\n // By default, reserved words are only enforced if ecmaVersion >= 5.\n // Set `allowReserved` to a boolean value to explicitly turn this on\n // an off. When this option has the value \"never\", reserved words\n // and keywords can also not be used as property names.\n allowReserved: null,\n // When enabled, a return at the top level is not considered an\n // error.\n allowReturnOutsideFunction: false,\n // When enabled, import/export statements are not constrained to\n // appearing at the top of the program, and an import.meta expression\n // in a script isn't considered an error.\n allowImportExportEverywhere: false,\n // By default, await identifiers are allowed to appear at the top-level scope only if ecmaVersion >= 2022.\n // When enabled, await identifiers are allowed to appear at the top-level scope,\n // but they are still not allowed in non-async functions.\n allowAwaitOutsideFunction: null,\n // When enabled, super identifiers are not constrained to\n // appearing in methods and do not raise an error when they appear elsewhere.\n allowSuperOutsideMethod: null,\n // When enabled, hashbang directive in the beginning of file is\n // allowed and treated as a line comment. Enabled by default when\n // `ecmaVersion` >= 2023.\n allowHashBang: false,\n // When `locations` is on, `loc` properties holding objects with\n // `start` and `end` properties in `{line, column}` form (with\n // line being 1-based and column 0-based) will be attached to the\n // nodes.\n locations: false,\n // A function can be passed as `onToken` option, which will\n // cause Acorn to call that function with object in the same\n // format as tokens returned from `tokenizer().getToken()`. Note\n // that you are not allowed to call the parser from the\n // callback—that will corrupt its internal state.\n onToken: null,\n // A function can be passed as `onComment` option, which will\n // cause Acorn to call that function with `(block, text, start,\n // end)` parameters whenever a comment is skipped. `block` is a\n // boolean indicating whether this is a block (`/* */`) comment,\n // `text` is the content of the comment, and `start` and `end` are\n // character offsets that denote the start and end of the comment.\n // When the `locations` option is on, two more parameters are\n // passed, the full `{line, column}` locations of the start and\n // end of the comments. Note that you are not allowed to call the\n // parser from the callback—that will corrupt its internal state.\n onComment: null,\n // Nodes have their start and end characters offsets recorded in\n // `start` and `end` properties (directly on the node, rather than\n // the `loc` object, which holds line/column data. To also add a\n // [semi-standardized][range] `range` property holding a `[start,\n // end]` array with the same numbers, set the `ranges` option to\n // `true`.\n //\n // [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678\n ranges: false,\n // It is possible to parse multiple files into a single AST by\n // passing the tree produced by parsing the first file as\n // `program` option in subsequent parses. This will add the\n // toplevel forms of the parsed file to the `Program` (top) node\n // of an existing parse tree.\n program: null,\n // When `locations` is on, you can pass this to record the source\n // file in every node's `loc` object.\n sourceFile: null,\n // This value, if given, is stored in every node, whether\n // `locations` is on or off.\n directSourceFile: null,\n // When enabled, parenthesized expressions are represented by\n // (non-standard) ParenthesizedExpression nodes\n preserveParens: false\n };\n\n // Interpret and default an options object\n\n var warnedAboutEcmaVersion = false;\n\n function getOptions(opts) {\n var options = {};\n\n for (var opt in defaultOptions)\n { options[opt] = opts && hasOwn(opts, opt) ? opts[opt] : defaultOptions[opt]; }\n\n if (options.ecmaVersion === \"latest\") {\n options.ecmaVersion = 1e8;\n } else if (options.ecmaVersion == null) {\n if (!warnedAboutEcmaVersion && typeof console === \"object\" && console.warn) {\n warnedAboutEcmaVersion = true;\n console.warn(\"Since Acorn 8.0.0, options.ecmaVersion is required.\\nDefaulting to 2020, but this will stop working in the future.\");\n }\n options.ecmaVersion = 11;\n } else if (options.ecmaVersion >= 2015) {\n options.ecmaVersion -= 2009;\n }\n\n if (options.allowReserved == null)\n { options.allowReserved = options.ecmaVersion < 5; }\n\n if (opts.allowHashBang == null)\n { options.allowHashBang = options.ecmaVersion >= 14; }\n\n if (isArray(options.onToken)) {\n var tokens = options.onToken;\n options.onToken = function (token) { return tokens.push(token); };\n }\n if (isArray(options.onComment))\n { options.onComment = pushComment(options, options.onComment); }\n\n return options\n }\n\n function pushComment(options, array) {\n return function(block, text, start, end, startLoc, endLoc) {\n var comment = {\n type: block ? \"Block\" : \"Line\",\n value: text,\n start: start,\n end: end\n };\n if (options.locations)\n { comment.loc = new SourceLocation(this, startLoc, endLoc); }\n if (options.ranges)\n { comment.range = [start, end]; }\n array.push(comment);\n }\n }\n\n // Each scope gets a bitset that may contain these flags\n var\n SCOPE_TOP = 1,\n SCOPE_FUNCTION = 2,\n SCOPE_ASYNC = 4,\n SCOPE_GENERATOR = 8,\n SCOPE_ARROW = 16,\n SCOPE_SIMPLE_CATCH = 32,\n SCOPE_SUPER = 64,\n SCOPE_DIRECT_SUPER = 128,\n SCOPE_CLASS_STATIC_BLOCK = 256,\n SCOPE_VAR = SCOPE_TOP | SCOPE_FUNCTION | SCOPE_CLASS_STATIC_BLOCK;\n\n function functionFlags(async, generator) {\n return SCOPE_FUNCTION | (async ? SCOPE_ASYNC : 0) | (generator ? SCOPE_GENERATOR : 0)\n }\n\n // Used in checkLVal* and declareName to determine the type of a binding\n var\n BIND_NONE = 0, // Not a binding\n BIND_VAR = 1, // Var-style binding\n BIND_LEXICAL = 2, // Let- or const-style binding\n BIND_FUNCTION = 3, // Function declaration\n BIND_SIMPLE_CATCH = 4, // Simple (identifier pattern) catch binding\n BIND_OUTSIDE = 5; // Special case for function names as bound inside the function\n\n var Parser = function Parser(options, input, startPos) {\n this.options = options = getOptions(options);\n this.sourceFile = options.sourceFile;\n this.keywords = wordsRegexp(keywords$1[options.ecmaVersion >= 6 ? 6 : options.sourceType === \"module\" ? \"5module\" : 5]);\n var reserved = \"\";\n if (options.allowReserved !== true) {\n reserved = reservedWords[options.ecmaVersion >= 6 ? 6 : options.ecmaVersion === 5 ? 5 : 3];\n if (options.sourceType === \"module\") { reserved += \" await\"; }\n }\n this.reservedWords = wordsRegexp(reserved);\n var reservedStrict = (reserved ? reserved + \" \" : \"\") + reservedWords.strict;\n this.reservedWordsStrict = wordsRegexp(reservedStrict);\n this.reservedWordsStrictBind = wordsRegexp(reservedStrict + \" \" + reservedWords.strictBind);\n this.input = String(input);\n\n // Used to signal to callers of `readWord1` whether the word\n // contained any escape sequences. This is needed because words with\n // escape sequences must not be interpreted as keywords.\n this.containsEsc = false;\n\n // Set up token state\n\n // The current position of the tokenizer in the input.\n if (startPos) {\n this.pos = startPos;\n this.lineStart = this.input.lastIndexOf(\"\\n\", startPos - 1) + 1;\n this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length;\n } else {\n this.pos = this.lineStart = 0;\n this.curLine = 1;\n }\n\n // Properties of the current token:\n // Its type\n this.type = types$1.eof;\n // For tokens that include more information than their type, the value\n this.value = null;\n // Its start and end offset\n this.start = this.end = this.pos;\n // And, if locations are used, the {line, column} object\n // corresponding to those offsets\n this.startLoc = this.endLoc = this.curPosition();\n\n // Position information for the previous token\n this.lastTokEndLoc = this.lastTokStartLoc = null;\n this.lastTokStart = this.lastTokEnd = this.pos;\n\n // The context stack is used to superficially track syntactic\n // context to predict whether a regular expression is allowed in a\n // given position.\n this.context = this.initialContext();\n this.exprAllowed = true;\n\n // Figure out if it's a module code.\n this.inModule = options.sourceType === \"module\";\n this.strict = this.inModule || this.strictDirective(this.pos);\n\n // Used to signify the start of a potential arrow function\n this.potentialArrowAt = -1;\n this.potentialArrowInForAwait = false;\n\n // Positions to delayed-check that yield/await does not exist in default parameters.\n this.yieldPos = this.awaitPos = this.awaitIdentPos = 0;\n // Labels in scope.\n this.labels = [];\n // Thus-far undefined exports.\n this.undefinedExports = Object.create(null);\n\n // If enabled, skip leading hashbang line.\n if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === \"#!\")\n { this.skipLineComment(2); }\n\n // Scope tracking for duplicate variable names (see scope.js)\n this.scopeStack = [];\n this.enterScope(SCOPE_TOP);\n\n // For RegExp validation\n this.regexpState = null;\n\n // The stack of private names.\n // Each element has two properties: 'declared' and 'used'.\n // When it exited from the outermost class definition, all used private names must be declared.\n this.privateNameStack = [];\n };\n\n var prototypeAccessors = { inFunction: { configurable: true },inGenerator: { configurable: true },inAsync: { configurable: true },canAwait: { configurable: true },allowSuper: { configurable: true },allowDirectSuper: { configurable: true },treatFunctionsAsVar: { configurable: true },allowNewDotTarget: { configurable: true },inClassStaticBlock: { configurable: true } };\n\n Parser.prototype.parse = function parse () {\n var node = this.options.program || this.startNode();\n this.nextToken();\n return this.parseTopLevel(node)\n };\n\n prototypeAccessors.inFunction.get = function () { return (this.currentVarScope().flags & SCOPE_FUNCTION) > 0 };\n\n prototypeAccessors.inGenerator.get = function () { return (this.currentVarScope().flags & SCOPE_GENERATOR) > 0 && !this.currentVarScope().inClassFieldInit };\n\n prototypeAccessors.inAsync.get = function () { return (this.currentVarScope().flags & SCOPE_ASYNC) > 0 && !this.currentVarScope().inClassFieldInit };\n\n prototypeAccessors.canAwait.get = function () {\n for (var i = this.scopeStack.length - 1; i >= 0; i--) {\n var scope = this.scopeStack[i];\n if (scope.inClassFieldInit || scope.flags & SCOPE_CLASS_STATIC_BLOCK) { return false }\n if (scope.flags & SCOPE_FUNCTION) { return (scope.flags & SCOPE_ASYNC) > 0 }\n }\n return (this.inModule && this.options.ecmaVersion >= 13) || this.options.allowAwaitOutsideFunction\n };\n\n prototypeAccessors.allowSuper.get = function () {\n var ref = this.currentThisScope();\n var flags = ref.flags;\n var inClassFieldInit = ref.inClassFieldInit;\n return (flags & SCOPE_SUPER) > 0 || inClassFieldInit || this.options.allowSuperOutsideMethod\n };\n\n prototypeAccessors.allowDirectSuper.get = function () { return (this.currentThisScope().flags & SCOPE_DIRECT_SUPER) > 0 };\n\n prototypeAccessors.treatFunctionsAsVar.get = function () { return this.treatFunctionsAsVarInScope(this.currentScope()) };\n\n prototypeAccessors.allowNewDotTarget.get = function () {\n var ref = this.currentThisScope();\n var flags = ref.flags;\n var inClassFieldInit = ref.inClassFieldInit;\n return (flags & (SCOPE_FUNCTION | SCOPE_CLASS_STATIC_BLOCK)) > 0 || inClassFieldInit\n };\n\n prototypeAccessors.inClassStaticBlock.get = function () {\n return (this.currentVarScope().flags & SCOPE_CLASS_STATIC_BLOCK) > 0\n };\n\n Parser.extend = function extend () {\n var plugins = [], len = arguments.length;\n while ( len-- ) plugins[ len ] = arguments[ len ];\n\n var cls = this;\n for (var i = 0; i < plugins.length; i++) { cls = plugins[i](cls); }\n return cls\n };\n\n Parser.parse = function parse (input, options) {\n return new this(options, input).parse()\n };\n\n Parser.parseExpressionAt = function parseExpressionAt (input, pos, options) {\n var parser = new this(options, input, pos);\n parser.nextToken();\n return parser.parseExpression()\n };\n\n Parser.tokenizer = function tokenizer (input, options) {\n return new this(options, input)\n };\n\n Object.defineProperties( Parser.prototype, prototypeAccessors );\n\n var pp$9 = Parser.prototype;\n\n // ## Parser utilities\n\n var literal = /^(?:'((?:\\\\.|[^'\\\\])*?)'|\"((?:\\\\.|[^\"\\\\])*?)\")/;\n pp$9.strictDirective = function(start) {\n if (this.options.ecmaVersion < 5) { return false }\n for (;;) {\n // Try to find string literal.\n skipWhiteSpace.lastIndex = start;\n start += skipWhiteSpace.exec(this.input)[0].length;\n var match = literal.exec(this.input.slice(start));\n if (!match) { return false }\n if ((match[1] || match[2]) === \"use strict\") {\n skipWhiteSpace.lastIndex = start + match[0].length;\n var spaceAfter = skipWhiteSpace.exec(this.input), end = spaceAfter.index + spaceAfter[0].length;\n var next = this.input.charAt(end);\n return next === \";\" || next === \"}\" ||\n (lineBreak.test(spaceAfter[0]) &&\n !(/[(`.[+\\-/*%<>=,?^&]/.test(next) || next === \"!\" && this.input.charAt(end + 1) === \"=\"))\n }\n start += match[0].length;\n\n // Skip semicolon, if any.\n skipWhiteSpace.lastIndex = start;\n start += skipWhiteSpace.exec(this.input)[0].length;\n if (this.input[start] === \";\")\n { start++; }\n }\n };\n\n // Predicate that tests whether the next token is of the given\n // type, and if yes, consumes it as a side effect.\n\n pp$9.eat = function(type) {\n if (this.type === type) {\n this.next();\n return true\n } else {\n return false\n }\n };\n\n // Tests whether parsed token is a contextual keyword.\n\n pp$9.isContextual = function(name) {\n return this.type === types$1.name && this.value === name && !this.containsEsc\n };\n\n // Consumes contextual keyword if possible.\n\n pp$9.eatContextual = function(name) {\n if (!this.isContextual(name)) { return false }\n this.next();\n return true\n };\n\n // Asserts that following token is given contextual keyword.\n\n pp$9.expectContextual = function(name) {\n if (!this.eatContextual(name)) { this.unexpected(); }\n };\n\n // Test whether a semicolon can be inserted at the current position.\n\n pp$9.canInsertSemicolon = function() {\n return this.type === types$1.eof ||\n this.type === types$1.braceR ||\n lineBreak.test(this.input.slice(this.lastTokEnd, this.start))\n };\n\n pp$9.insertSemicolon = function() {\n if (this.canInsertSemicolon()) {\n if (this.options.onInsertedSemicolon)\n { this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc); }\n return true\n }\n };\n\n // Consume a semicolon, or, failing that, see if we are allowed to\n // pretend that there is a semicolon at this position.\n\n pp$9.semicolon = function() {\n if (!this.eat(types$1.semi) && !this.insertSemicolon()) { this.unexpected(); }\n };\n\n pp$9.afterTrailingComma = function(tokType, notNext) {\n if (this.type === tokType) {\n if (this.options.onTrailingComma)\n { this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); }\n if (!notNext)\n { this.next(); }\n return true\n }\n };\n\n // Expect a token of a given type. If found, consume it, otherwise,\n // raise an unexpected token error.\n\n pp$9.expect = function(type) {\n this.eat(type) || this.unexpected();\n };\n\n // Raise an unexpected token error.\n\n pp$9.unexpected = function(pos) {\n this.raise(pos != null ? pos : this.start, \"Unexpected token\");\n };\n\n var DestructuringErrors = function DestructuringErrors() {\n this.shorthandAssign =\n this.trailingComma =\n this.parenthesizedAssign =\n this.parenthesizedBind =\n this.doubleProto =\n -1;\n };\n\n pp$9.checkPatternErrors = function(refDestructuringErrors, isAssign) {\n if (!refDestructuringErrors) { return }\n if (refDestructuringErrors.trailingComma > -1)\n { this.raiseRecoverable(refDestructuringErrors.trailingComma, \"Comma is not permitted after the rest element\"); }\n var parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind;\n if (parens > -1) { this.raiseRecoverable(parens, isAssign ? \"Assigning to rvalue\" : \"Parenthesized pattern\"); }\n };\n\n pp$9.checkExpressionErrors = function(refDestructuringErrors, andThrow) {\n if (!refDestructuringErrors) { return false }\n var shorthandAssign = refDestructuringErrors.shorthandAssign;\n var doubleProto = refDestructuringErrors.doubleProto;\n if (!andThrow) { return shorthandAssign >= 0 || doubleProto >= 0 }\n if (shorthandAssign >= 0)\n { this.raise(shorthandAssign, \"Shorthand property assignments are valid only in destructuring patterns\"); }\n if (doubleProto >= 0)\n { this.raiseRecoverable(doubleProto, \"Redefinition of __proto__ property\"); }\n };\n\n pp$9.checkYieldAwaitInDefaultParams = function() {\n if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos))\n { this.raise(this.yieldPos, \"Yield expression cannot be a default value\"); }\n if (this.awaitPos)\n { this.raise(this.awaitPos, \"Await expression cannot be a default value\"); }\n };\n\n pp$9.isSimpleAssignTarget = function(expr) {\n if (expr.type === \"ParenthesizedExpression\")\n { return this.isSimpleAssignTarget(expr.expression) }\n return expr.type === \"Identifier\" || expr.type === \"MemberExpression\"\n };\n\n var pp$8 = Parser.prototype;\n\n // ### Statement parsing\n\n // Parse a program. Initializes the parser, reads any number of\n // statements, and wraps them in a Program node. Optionally takes a\n // `program` argument. If present, the statements will be appended\n // to its body instead of creating a new node.\n\n pp$8.parseTopLevel = function(node) {\n var exports = Object.create(null);\n if (!node.body) { node.body = []; }\n while (this.type !== types$1.eof) {\n var stmt = this.parseStatement(null, true, exports);\n node.body.push(stmt);\n }\n if (this.inModule)\n { for (var i = 0, list = Object.keys(this.undefinedExports); i < list.length; i += 1)\n {\n var name = list[i];\n\n this.raiseRecoverable(this.undefinedExports[name].start, (\"Export '\" + name + \"' is not defined\"));\n } }\n this.adaptDirectivePrologue(node.body);\n this.next();\n node.sourceType = this.options.sourceType;\n return this.finishNode(node, \"Program\")\n };\n\n var loopLabel = {kind: \"loop\"}, switchLabel = {kind: \"switch\"};\n\n pp$8.isLet = function(context) {\n if (this.options.ecmaVersion < 6 || !this.isContextual(\"let\")) { return false }\n skipWhiteSpace.lastIndex = this.pos;\n var skip = skipWhiteSpace.exec(this.input);\n var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);\n // For ambiguous cases, determine if a LexicalDeclaration (or only a\n // Statement) is allowed here. If context is not empty then only a Statement\n // is allowed. However, `let [` is an explicit negative lookahead for\n // ExpressionStatement, so special-case it first.\n if (nextCh === 91 || nextCh === 92 || nextCh > 0xd7ff && nextCh < 0xdc00) { return true } // '[', '/', astral\n if (context) { return false }\n\n if (nextCh === 123) { return true } // '{'\n if (isIdentifierStart(nextCh, true)) {\n var pos = next + 1;\n while (isIdentifierChar(nextCh = this.input.charCodeAt(pos), true)) { ++pos; }\n if (nextCh === 92 || nextCh > 0xd7ff && nextCh < 0xdc00) { return true }\n var ident = this.input.slice(next, pos);\n if (!keywordRelationalOperator.test(ident)) { return true }\n }\n return false\n };\n\n // check 'async [no LineTerminator here] function'\n // - 'async /*foo*/ function' is OK.\n // - 'async /*\\n*/ function' is invalid.\n pp$8.isAsyncFunction = function() {\n if (this.options.ecmaVersion < 8 || !this.isContextual(\"async\"))\n { return false }\n\n skipWhiteSpace.lastIndex = this.pos;\n var skip = skipWhiteSpace.exec(this.input);\n var next = this.pos + skip[0].length, after;\n return !lineBreak.test(this.input.slice(this.pos, next)) &&\n this.input.slice(next, next + 8) === \"function\" &&\n (next + 8 === this.input.length ||\n !(isIdentifierChar(after = this.input.charCodeAt(next + 8)) || after > 0xd7ff && after < 0xdc00))\n };\n\n // Parse a single statement.\n //\n // If expecting a statement and finding a slash operator, parse a\n // regular expression literal. This is to handle cases like\n // `if (foo) /blah/.exec(foo)`, where looking at the previous token\n // does not help.\n\n pp$8.parseStatement = function(context, topLevel, exports) {\n var starttype = this.type, node = this.startNode(), kind;\n\n if (this.isLet(context)) {\n starttype = types$1._var;\n kind = \"let\";\n }\n\n // Most types of statements are recognized by the keyword they\n // start with. Many are trivial to parse, some require a bit of\n // complexity.\n\n switch (starttype) {\n case types$1._break: case types$1._continue: return this.parseBreakContinueStatement(node, starttype.keyword)\n case types$1._debugger: return this.parseDebuggerStatement(node)\n case types$1._do: return this.parseDoStatement(node)\n case types$1._for: return this.parseForStatement(node)\n case types$1._function:\n // Function as sole body of either an if statement or a labeled statement\n // works, but not when it is part of a labeled statement that is the sole\n // body of an if statement.\n if ((context && (this.strict || context !== \"if\" && context !== \"label\")) && this.options.ecmaVersion >= 6) { this.unexpected(); }\n return this.parseFunctionStatement(node, false, !context)\n case types$1._class:\n if (context) { this.unexpected(); }\n return this.parseClass(node, true)\n case types$1._if: return this.parseIfStatement(node)\n case types$1._return: return this.parseReturnStatement(node)\n case types$1._switch: return this.parseSwitchStatement(node)\n case types$1._throw: return this.parseThrowStatement(node)\n case types$1._try: return this.parseTryStatement(node)\n case types$1._const: case types$1._var:\n kind = kind || this.value;\n if (context && kind !== \"var\") { this.unexpected(); }\n return this.parseVarStatement(node, kind)\n case types$1._while: return this.parseWhileStatement(node)\n case types$1._with: return this.parseWithStatement(node)\n case types$1.braceL: return this.parseBlock(true, node)\n case types$1.semi: return this.parseEmptyStatement(node)\n case types$1._export:\n case types$1._import:\n if (this.options.ecmaVersion > 10 && starttype === types$1._import) {\n skipWhiteSpace.lastIndex = this.pos;\n var skip = skipWhiteSpace.exec(this.input);\n var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);\n if (nextCh === 40 || nextCh === 46) // '(' or '.'\n { return this.parseExpressionStatement(node, this.parseExpression()) }\n }\n\n if (!this.options.allowImportExportEverywhere) {\n if (!topLevel)\n { this.raise(this.start, \"'import' and 'export' may only appear at the top level\"); }\n if (!this.inModule)\n { this.raise(this.start, \"'import' and 'export' may appear only with 'sourceType: module'\"); }\n }\n return starttype === types$1._import ? this.parseImport(node) : this.parseExport(node, exports)\n\n // If the statement does not start with a statement keyword or a\n // brace, it's an ExpressionStatement or LabeledStatement. We\n // simply start parsing an expression, and afterwards, if the\n // next token is a colon and the expression was a simple\n // Identifier node, we switch to interpreting it as a label.\n default:\n if (this.isAsyncFunction()) {\n if (context) { this.unexpected(); }\n this.next();\n return this.parseFunctionStatement(node, true, !context)\n }\n\n var maybeName = this.value, expr = this.parseExpression();\n if (starttype === types$1.name && expr.type === \"Identifier\" && this.eat(types$1.colon))\n { return this.parseLabeledStatement(node, maybeName, expr, context) }\n else { return this.parseExpressionStatement(node, expr) }\n }\n };\n\n pp$8.parseBreakContinueStatement = function(node, keyword) {\n var isBreak = keyword === \"break\";\n this.next();\n if (this.eat(types$1.semi) || this.insertSemicolon()) { node.label = null; }\n else if (this.type !== types$1.name) { this.unexpected(); }\n else {\n node.label = this.parseIdent();\n this.semicolon();\n }\n\n // Verify that there is an actual destination to break or\n // continue to.\n var i = 0;\n for (; i < this.labels.length; ++i) {\n var lab = this.labels[i];\n if (node.label == null || lab.name === node.label.name) {\n if (lab.kind != null && (isBreak || lab.kind === \"loop\")) { break }\n if (node.label && isBreak) { break }\n }\n }\n if (i === this.labels.length) { this.raise(node.start, \"Unsyntactic \" + keyword); }\n return this.finishNode(node, isBreak ? \"BreakStatement\" : \"ContinueStatement\")\n };\n\n pp$8.parseDebuggerStatement = function(node) {\n this.next();\n this.semicolon();\n return this.finishNode(node, \"DebuggerStatement\")\n };\n\n pp$8.parseDoStatement = function(node) {\n this.next();\n this.labels.push(loopLabel);\n node.body = this.parseStatement(\"do\");\n this.labels.pop();\n this.expect(types$1._while);\n node.test = this.parseParenExpression();\n if (this.options.ecmaVersion >= 6)\n { this.eat(types$1.semi); }\n else\n { this.semicolon(); }\n return this.finishNode(node, \"DoWhileStatement\")\n };\n\n // Disambiguating between a `for` and a `for`/`in` or `for`/`of`\n // loop is non-trivial. Basically, we have to parse the init `var`\n // statement or expression, disallowing the `in` operator (see\n // the second parameter to `parseExpression`), and then check\n // whether the next token is `in` or `of`. When there is no init\n // part (semicolon immediately after the opening parenthesis), it\n // is a regular `for` loop.\n\n pp$8.parseForStatement = function(node) {\n this.next();\n var awaitAt = (this.options.ecmaVersion >= 9 && this.canAwait && this.eatContextual(\"await\")) ? this.lastTokStart : -1;\n this.labels.push(loopLabel);\n this.enterScope(0);\n this.expect(types$1.parenL);\n if (this.type === types$1.semi) {\n if (awaitAt > -1) { this.unexpected(awaitAt); }\n return this.parseFor(node, null)\n }\n var isLet = this.isLet();\n if (this.type === types$1._var || this.type === types$1._const || isLet) {\n var init$1 = this.startNode(), kind = isLet ? \"let\" : this.value;\n this.next();\n this.parseVar(init$1, true, kind);\n this.finishNode(init$1, \"VariableDeclaration\");\n if ((this.type === types$1._in || (this.options.ecmaVersion >= 6 && this.isContextual(\"of\"))) && init$1.declarations.length === 1) {\n if (this.options.ecmaVersion >= 9) {\n if (this.type === types$1._in) {\n if (awaitAt > -1) { this.unexpected(awaitAt); }\n } else { node.await = awaitAt > -1; }\n }\n return this.parseForIn(node, init$1)\n }\n if (awaitAt > -1) { this.unexpected(awaitAt); }\n return this.parseFor(node, init$1)\n }\n var startsWithLet = this.isContextual(\"let\"), isForOf = false;\n var refDestructuringErrors = new DestructuringErrors;\n var init = this.parseExpression(awaitAt > -1 ? \"await\" : true, refDestructuringErrors);\n if (this.type === types$1._in || (isForOf = this.options.ecmaVersion >= 6 && this.isContextual(\"of\"))) {\n if (this.options.ecmaVersion >= 9) {\n if (this.type === types$1._in) {\n if (awaitAt > -1) { this.unexpected(awaitAt); }\n } else { node.await = awaitAt > -1; }\n }\n if (startsWithLet && isForOf) { this.raise(init.start, \"The left-hand side of a for-of loop may not start with 'let'.\"); }\n this.toAssignable(init, false, refDestructuringErrors);\n this.checkLValPattern(init);\n return this.parseForIn(node, init)\n } else {\n this.checkExpressionErrors(refDestructuringErrors, true);\n }\n if (awaitAt > -1) { this.unexpected(awaitAt); }\n return this.parseFor(node, init)\n };\n\n pp$8.parseFunctionStatement = function(node, isAsync, declarationPosition) {\n this.next();\n return this.parseFunction(node, FUNC_STATEMENT | (declarationPosition ? 0 : FUNC_HANGING_STATEMENT), false, isAsync)\n };\n\n pp$8.parseIfStatement = function(node) {\n this.next();\n node.test = this.parseParenExpression();\n // allow function declarations in branches, but only in non-strict mode\n node.consequent = this.parseStatement(\"if\");\n node.alternate = this.eat(types$1._else) ? this.parseStatement(\"if\") : null;\n return this.finishNode(node, \"IfStatement\")\n };\n\n pp$8.parseReturnStatement = function(node) {\n if (!this.inFunction && !this.options.allowReturnOutsideFunction)\n { this.raise(this.start, \"'return' outside of function\"); }\n this.next();\n\n // In `return` (and `break`/`continue`), the keywords with\n // optional arguments, we eagerly look for a semicolon or the\n // possibility to insert one.\n\n if (this.eat(types$1.semi) || this.insertSemicolon()) { node.argument = null; }\n else { node.argument = this.parseExpression(); this.semicolon(); }\n return this.finishNode(node, \"ReturnStatement\")\n };\n\n pp$8.parseSwitchStatement = function(node) {\n this.next();\n node.discriminant = this.parseParenExpression();\n node.cases = [];\n this.expect(types$1.braceL);\n this.labels.push(switchLabel);\n this.enterScope(0);\n\n // Statements under must be grouped (by label) in SwitchCase\n // nodes. `cur` is used to keep the node that we are currently\n // adding statements to.\n\n var cur;\n for (var sawDefault = false; this.type !== types$1.braceR;) {\n if (this.type === types$1._case || this.type === types$1._default) {\n var isCase = this.type === types$1._case;\n if (cur) { this.finishNode(cur, \"SwitchCase\"); }\n node.cases.push(cur = this.startNode());\n cur.consequent = [];\n this.next();\n if (isCase) {\n cur.test = this.parseExpression();\n } else {\n if (sawDefault) { this.raiseRecoverable(this.lastTokStart, \"Multiple default clauses\"); }\n sawDefault = true;\n cur.test = null;\n }\n this.expect(types$1.colon);\n } else {\n if (!cur) { this.unexpected(); }\n cur.consequent.push(this.parseStatement(null));\n }\n }\n this.exitScope();\n if (cur) { this.finishNode(cur, \"SwitchCase\"); }\n this.next(); // Closing brace\n this.labels.pop();\n return this.finishNode(node, \"SwitchStatement\")\n };\n\n pp$8.parseThrowStatement = function(node) {\n this.next();\n if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start)))\n { this.raise(this.lastTokEnd, \"Illegal newline after throw\"); }\n node.argument = this.parseExpression();\n this.semicolon();\n return this.finishNode(node, \"ThrowStatement\")\n };\n\n // Reused empty array added for node fields that are always empty.\n\n var empty$1 = [];\n\n pp$8.parseTryStatement = function(node) {\n this.next();\n node.block = this.parseBlock();\n node.handler = null;\n if (this.type === types$1._catch) {\n var clause = this.startNode();\n this.next();\n if (this.eat(types$1.parenL)) {\n clause.param = this.parseBindingAtom();\n var simple = clause.param.type === \"Identifier\";\n this.enterScope(simple ? SCOPE_SIMPLE_CATCH : 0);\n this.checkLValPattern(clause.param, simple ? BIND_SIMPLE_CATCH : BIND_LEXICAL);\n this.expect(types$1.parenR);\n } else {\n if (this.options.ecmaVersion < 10) { this.unexpected(); }\n clause.param = null;\n this.enterScope(0);\n }\n clause.body = this.parseBlock(false);\n this.exitScope();\n node.handler = this.finishNode(clause, \"CatchClause\");\n }\n node.finalizer = this.eat(types$1._finally) ? this.parseBlock() : null;\n if (!node.handler && !node.finalizer)\n { this.raise(node.start, \"Missing catch or finally clause\"); }\n return this.finishNode(node, \"TryStatement\")\n };\n\n pp$8.parseVarStatement = function(node, kind) {\n this.next();\n this.parseVar(node, false, kind);\n this.semicolon();\n return this.finishNode(node, \"VariableDeclaration\")\n };\n\n pp$8.parseWhileStatement = function(node) {\n this.next();\n node.test = this.parseParenExpression();\n this.labels.push(loopLabel);\n node.body = this.parseStatement(\"while\");\n this.labels.pop();\n return this.finishNode(node, \"WhileStatement\")\n };\n\n pp$8.parseWithStatement = function(node) {\n if (this.strict) { this.raise(this.start, \"'with' in strict mode\"); }\n this.next();\n node.object = this.parseParenExpression();\n node.body = this.parseStatement(\"with\");\n return this.finishNode(node, \"WithStatement\")\n };\n\n pp$8.parseEmptyStatement = function(node) {\n this.next();\n return this.finishNode(node, \"EmptyStatement\")\n };\n\n pp$8.parseLabeledStatement = function(node, maybeName, expr, context) {\n for (var i$1 = 0, list = this.labels; i$1 < list.length; i$1 += 1)\n {\n var label = list[i$1];\n\n if (label.name === maybeName)\n { this.raise(expr.start, \"Label '\" + maybeName + \"' is already declared\");\n } }\n var kind = this.type.isLoop ? \"loop\" : this.type === types$1._switch ? \"switch\" : null;\n for (var i = this.labels.length - 1; i >= 0; i--) {\n var label$1 = this.labels[i];\n if (label$1.statementStart === node.start) {\n // Update information about previous labels on this node\n label$1.statementStart = this.start;\n label$1.kind = kind;\n } else { break }\n }\n this.labels.push({name: maybeName, kind: kind, statementStart: this.start});\n node.body = this.parseStatement(context ? context.indexOf(\"label\") === -1 ? context + \"label\" : context : \"label\");\n this.labels.pop();\n node.label = expr;\n return this.finishNode(node, \"LabeledStatement\")\n };\n\n pp$8.parseExpressionStatement = function(node, expr) {\n node.expression = expr;\n this.semicolon();\n return this.finishNode(node, \"ExpressionStatement\")\n };\n\n // Parse a semicolon-enclosed block of statements, handling `\"use\n // strict\"` declarations when `allowStrict` is true (used for\n // function bodies).\n\n pp$8.parseBlock = function(createNewLexicalScope, node, exitStrict) {\n if ( createNewLexicalScope === void 0 ) createNewLexicalScope = true;\n if ( node === void 0 ) node = this.startNode();\n\n node.body = [];\n this.expect(types$1.braceL);\n if (createNewLexicalScope) { this.enterScope(0); }\n while (this.type !== types$1.braceR) {\n var stmt = this.parseStatement(null);\n node.body.push(stmt);\n }\n if (exitStrict) { this.strict = false; }\n this.next();\n if (createNewLexicalScope) { this.exitScope(); }\n return this.finishNode(node, \"BlockStatement\")\n };\n\n // Parse a regular `for` loop. The disambiguation code in\n // `parseStatement` will already have parsed the init statement or\n // expression.\n\n pp$8.parseFor = function(node, init) {\n node.init = init;\n this.expect(types$1.semi);\n node.test = this.type === types$1.semi ? null : this.parseExpression();\n this.expect(types$1.semi);\n node.update = this.type === types$1.parenR ? null : this.parseExpression();\n this.expect(types$1.parenR);\n node.body = this.parseStatement(\"for\");\n this.exitScope();\n this.labels.pop();\n return this.finishNode(node, \"ForStatement\")\n };\n\n // Parse a `for`/`in` and `for`/`of` loop, which are almost\n // same from parser's perspective.\n\n pp$8.parseForIn = function(node, init) {\n var isForIn = this.type === types$1._in;\n this.next();\n\n if (\n init.type === \"VariableDeclaration\" &&\n init.declarations[0].init != null &&\n (\n !isForIn ||\n this.options.ecmaVersion < 8 ||\n this.strict ||\n init.kind !== \"var\" ||\n init.declarations[0].id.type !== \"Identifier\"\n )\n ) {\n this.raise(\n init.start,\n ((isForIn ? \"for-in\" : \"for-of\") + \" loop variable declaration may not have an initializer\")\n );\n }\n node.left = init;\n node.right = isForIn ? this.parseExpression() : this.parseMaybeAssign();\n this.expect(types$1.parenR);\n node.body = this.parseStatement(\"for\");\n this.exitScope();\n this.labels.pop();\n return this.finishNode(node, isForIn ? \"ForInStatement\" : \"ForOfStatement\")\n };\n\n // Parse a list of variable declarations.\n\n pp$8.parseVar = function(node, isFor, kind) {\n node.declarations = [];\n node.kind = kind;\n for (;;) {\n var decl = this.startNode();\n this.parseVarId(decl, kind);\n if (this.eat(types$1.eq)) {\n decl.init = this.parseMaybeAssign(isFor);\n } else if (kind === \"const\" && !(this.type === types$1._in || (this.options.ecmaVersion >= 6 && this.isContextual(\"of\")))) {\n this.unexpected();\n } else if (decl.id.type !== \"Identifier\" && !(isFor && (this.type === types$1._in || this.isContextual(\"of\")))) {\n this.raise(this.lastTokEnd, \"Complex binding patterns require an initialization value\");\n } else {\n decl.init = null;\n }\n node.declarations.push(this.finishNode(decl, \"VariableDeclarator\"));\n if (!this.eat(types$1.comma)) { break }\n }\n return node\n };\n\n pp$8.parseVarId = function(decl, kind) {\n decl.id = this.parseBindingAtom();\n this.checkLValPattern(decl.id, kind === \"var\" ? BIND_VAR : BIND_LEXICAL, false);\n };\n\n var FUNC_STATEMENT = 1, FUNC_HANGING_STATEMENT = 2, FUNC_NULLABLE_ID = 4;\n\n // Parse a function declaration or literal (depending on the\n // `statement & FUNC_STATEMENT`).\n\n // Remove `allowExpressionBody` for 7.0.0, as it is only called with false\n pp$8.parseFunction = function(node, statement, allowExpressionBody, isAsync, forInit) {\n this.initFunction(node);\n if (this.options.ecmaVersion >= 9 || this.options.ecmaVersion >= 6 && !isAsync) {\n if (this.type === types$1.star && (statement & FUNC_HANGING_STATEMENT))\n { this.unexpected(); }\n node.generator = this.eat(types$1.star);\n }\n if (this.options.ecmaVersion >= 8)\n { node.async = !!isAsync; }\n\n if (statement & FUNC_STATEMENT) {\n node.id = (statement & FUNC_NULLABLE_ID) && this.type !== types$1.name ? null : this.parseIdent();\n if (node.id && !(statement & FUNC_HANGING_STATEMENT))\n // If it is a regular function declaration in sloppy mode, then it is\n // subject to Annex B semantics (BIND_FUNCTION). Otherwise, the binding\n // mode depends on properties of the current scope (see\n // treatFunctionsAsVar).\n { this.checkLValSimple(node.id, (this.strict || node.generator || node.async) ? this.treatFunctionsAsVar ? BIND_VAR : BIND_LEXICAL : BIND_FUNCTION); }\n }\n\n var oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;\n this.yieldPos = 0;\n this.awaitPos = 0;\n this.awaitIdentPos = 0;\n this.enterScope(functionFlags(node.async, node.generator));\n\n if (!(statement & FUNC_STATEMENT))\n { node.id = this.type === types$1.name ? this.parseIdent() : null; }\n\n this.parseFunctionParams(node);\n this.parseFunctionBody(node, allowExpressionBody, false, forInit);\n\n this.yieldPos = oldYieldPos;\n this.awaitPos = oldAwaitPos;\n this.awaitIdentPos = oldAwaitIdentPos;\n return this.finishNode(node, (statement & FUNC_STATEMENT) ? \"FunctionDeclaration\" : \"FunctionExpression\")\n };\n\n pp$8.parseFunctionParams = function(node) {\n this.expect(types$1.parenL);\n node.params = this.parseBindingList(types$1.parenR, false, this.options.ecmaVersion >= 8);\n this.checkYieldAwaitInDefaultParams();\n };\n\n // Parse a class declaration or literal (depending on the\n // `isStatement` parameter).\n\n pp$8.parseClass = function(node, isStatement) {\n this.next();\n\n // ecma-262 14.6 Class Definitions\n // A class definition is always strict mode code.\n var oldStrict = this.strict;\n this.strict = true;\n\n this.parseClassId(node, isStatement);\n this.parseClassSuper(node);\n var privateNameMap = this.enterClassBody();\n var classBody = this.startNode();\n var hadConstructor = false;\n classBody.body = [];\n this.expect(types$1.braceL);\n while (this.type !== types$1.braceR) {\n var element = this.parseClassElement(node.superClass !== null);\n if (element) {\n classBody.body.push(element);\n if (element.type === \"MethodDefinition\" && element.kind === \"constructor\") {\n if (hadConstructor) { this.raise(element.start, \"Duplicate constructor in the same class\"); }\n hadConstructor = true;\n } else if (element.key && element.key.type === \"PrivateIdentifier\" && isPrivateNameConflicted(privateNameMap, element)) {\n this.raiseRecoverable(element.key.start, (\"Identifier '#\" + (element.key.name) + \"' has already been declared\"));\n }\n }\n }\n this.strict = oldStrict;\n this.next();\n node.body = this.finishNode(classBody, \"ClassBody\");\n this.exitClassBody();\n return this.finishNode(node, isStatement ? \"ClassDeclaration\" : \"ClassExpression\")\n };\n\n pp$8.parseClassElement = function(constructorAllowsSuper) {\n if (this.eat(types$1.semi)) { return null }\n\n var ecmaVersion = this.options.ecmaVersion;\n var node = this.startNode();\n var keyName = \"\";\n var isGenerator = false;\n var isAsync = false;\n var kind = \"method\";\n var isStatic = false;\n\n if (this.eatContextual(\"static\")) {\n // Parse static init block\n if (ecmaVersion >= 13 && this.eat(types$1.braceL)) {\n this.parseClassStaticBlock(node);\n return node\n }\n if (this.isClassElementNameStart() || this.type === types$1.star) {\n isStatic = true;\n } else {\n keyName = \"static\";\n }\n }\n node.static = isStatic;\n if (!keyName && ecmaVersion >= 8 && this.eatContextual(\"async\")) {\n if ((this.isClassElementNameStart() || this.type === types$1.star) && !this.canInsertSemicolon()) {\n isAsync = true;\n } else {\n keyName = \"async\";\n }\n }\n if (!keyName && (ecmaVersion >= 9 || !isAsync) && this.eat(types$1.star)) {\n isGenerator = true;\n }\n if (!keyName && !isAsync && !isGenerator) {\n var lastValue = this.value;\n if (this.eatContextual(\"get\") || this.eatContextual(\"set\")) {\n if (this.isClassElementNameStart()) {\n kind = lastValue;\n } else {\n keyName = lastValue;\n }\n }\n }\n\n // Parse element name\n if (keyName) {\n // 'async', 'get', 'set', or 'static' were not a keyword contextually.\n // The last token is any of those. Make it the element name.\n node.computed = false;\n node.key = this.startNodeAt(this.lastTokStart, this.lastTokStartLoc);\n node.key.name = keyName;\n this.finishNode(node.key, \"Identifier\");\n } else {\n this.parseClassElementName(node);\n }\n\n // Parse element value\n if (ecmaVersion < 13 || this.type === types$1.parenL || kind !== \"method\" || isGenerator || isAsync) {\n var isConstructor = !node.static && checkKeyName(node, \"constructor\");\n var allowsDirectSuper = isConstructor && constructorAllowsSuper;\n // Couldn't move this check into the 'parseClassMethod' method for backward compatibility.\n if (isConstructor && kind !== \"method\") { this.raise(node.key.start, \"Constructor can't have get/set modifier\"); }\n node.kind = isConstructor ? \"constructor\" : kind;\n this.parseClassMethod(node, isGenerator, isAsync, allowsDirectSuper);\n } else {\n this.parseClassField(node);\n }\n\n return node\n };\n\n pp$8.isClassElementNameStart = function() {\n return (\n this.type === types$1.name ||\n this.type === types$1.privateId ||\n this.type === types$1.num ||\n this.type === types$1.string ||\n this.type === types$1.bracketL ||\n this.type.keyword\n )\n };\n\n pp$8.parseClassElementName = function(element) {\n if (this.type === types$1.privateId) {\n if (this.value === \"constructor\") {\n this.raise(this.start, \"Classes can't have an element named '#constructor'\");\n }\n element.computed = false;\n element.key = this.parsePrivateIdent();\n } else {\n this.parsePropertyName(element);\n }\n };\n\n pp$8.parseClassMethod = function(method, isGenerator, isAsync, allowsDirectSuper) {\n // Check key and flags\n var key = method.key;\n if (method.kind === \"constructor\") {\n if (isGenerator) { this.raise(key.start, \"Constructor can't be a generator\"); }\n if (isAsync) { this.raise(key.start, \"Constructor can't be an async method\"); }\n } else if (method.static && checkKeyName(method, \"prototype\")) {\n this.raise(key.start, \"Classes may not have a static property named prototype\");\n }\n\n // Parse value\n var value = method.value = this.parseMethod(isGenerator, isAsync, allowsDirectSuper);\n\n // Check value\n if (method.kind === \"get\" && value.params.length !== 0)\n { this.raiseRecoverable(value.start, \"getter should have no params\"); }\n if (method.kind === \"set\" && value.params.length !== 1)\n { this.raiseRecoverable(value.start, \"setter should have exactly one param\"); }\n if (method.kind === \"set\" && value.params[0].type === \"RestElement\")\n { this.raiseRecoverable(value.params[0].start, \"Setter cannot use rest params\"); }\n\n return this.finishNode(method, \"MethodDefinition\")\n };\n\n pp$8.parseClassField = function(field) {\n if (checkKeyName(field, \"constructor\")) {\n this.raise(field.key.start, \"Classes can't have a field named 'constructor'\");\n } else if (field.static && checkKeyName(field, \"prototype\")) {\n this.raise(field.key.start, \"Classes can't have a static field named 'prototype'\");\n }\n\n if (this.eat(types$1.eq)) {\n // To raise SyntaxError if 'arguments' exists in the initializer.\n var scope = this.currentThisScope();\n var inClassFieldInit = scope.inClassFieldInit;\n scope.inClassFieldInit = true;\n field.value = this.parseMaybeAssign();\n scope.inClassFieldInit = inClassFieldInit;\n } else {\n field.value = null;\n }\n this.semicolon();\n\n return this.finishNode(field, \"PropertyDefinition\")\n };\n\n pp$8.parseClassStaticBlock = function(node) {\n node.body = [];\n\n var oldLabels = this.labels;\n this.labels = [];\n this.enterScope(SCOPE_CLASS_STATIC_BLOCK | SCOPE_SUPER);\n while (this.type !== types$1.braceR) {\n var stmt = this.parseStatement(null);\n node.body.push(stmt);\n }\n this.next();\n this.exitScope();\n this.labels = oldLabels;\n\n return this.finishNode(node, \"StaticBlock\")\n };\n\n pp$8.parseClassId = function(node, isStatement) {\n if (this.type === types$1.name) {\n node.id = this.parseIdent();\n if (isStatement)\n { this.checkLValSimple(node.id, BIND_LEXICAL, false); }\n } else {\n if (isStatement === true)\n { this.unexpected(); }\n node.id = null;\n }\n };\n\n pp$8.parseClassSuper = function(node) {\n node.superClass = this.eat(types$1._extends) ? this.parseExprSubscripts(false) : null;\n };\n\n pp$8.enterClassBody = function() {\n var element = {declared: Object.create(null), used: []};\n this.privateNameStack.push(element);\n return element.declared\n };\n\n pp$8.exitClassBody = function() {\n var ref = this.privateNameStack.pop();\n var declared = ref.declared;\n var used = ref.used;\n var len = this.privateNameStack.length;\n var parent = len === 0 ? null : this.privateNameStack[len - 1];\n for (var i = 0; i < used.length; ++i) {\n var id = used[i];\n if (!hasOwn(declared, id.name)) {\n if (parent) {\n parent.used.push(id);\n } else {\n this.raiseRecoverable(id.start, (\"Private field '#\" + (id.name) + \"' must be declared in an enclosing class\"));\n }\n }\n }\n };\n\n function isPrivateNameConflicted(privateNameMap, element) {\n var name = element.key.name;\n var curr = privateNameMap[name];\n\n var next = \"true\";\n if (element.type === \"MethodDefinition\" && (element.kind === \"get\" || element.kind === \"set\")) {\n next = (element.static ? \"s\" : \"i\") + element.kind;\n }\n\n // `class { get #a(){}; static set #a(_){} }` is also conflict.\n if (\n curr === \"iget\" && next === \"iset\" ||\n curr === \"iset\" && next === \"iget\" ||\n curr === \"sget\" && next === \"sset\" ||\n curr === \"sset\" && next === \"sget\"\n ) {\n privateNameMap[name] = \"true\";\n return false\n } else if (!curr) {\n privateNameMap[name] = next;\n return false\n } else {\n return true\n }\n }\n\n function checkKeyName(node, name) {\n var computed = node.computed;\n var key = node.key;\n return !computed && (\n key.type === \"Identifier\" && key.name === name ||\n key.type === \"Literal\" && key.value === name\n )\n }\n\n // Parses module export declaration.\n\n pp$8.parseExport = function(node, exports) {\n this.next();\n // export * from '...'\n if (this.eat(types$1.star)) {\n if (this.options.ecmaVersion >= 11) {\n if (this.eatContextual(\"as\")) {\n node.exported = this.parseModuleExportName();\n this.checkExport(exports, node.exported, this.lastTokStart);\n } else {\n node.exported = null;\n }\n }\n this.expectContextual(\"from\");\n if (this.type !== types$1.string) { this.unexpected(); }\n node.source = this.parseExprAtom();\n this.semicolon();\n return this.finishNode(node, \"ExportAllDeclaration\")\n }\n if (this.eat(types$1._default)) { // export default ...\n this.checkExport(exports, \"default\", this.lastTokStart);\n var isAsync;\n if (this.type === types$1._function || (isAsync = this.isAsyncFunction())) {\n var fNode = this.startNode();\n this.next();\n if (isAsync) { this.next(); }\n node.declaration = this.parseFunction(fNode, FUNC_STATEMENT | FUNC_NULLABLE_ID, false, isAsync);\n } else if (this.type === types$1._class) {\n var cNode = this.startNode();\n node.declaration = this.parseClass(cNode, \"nullableID\");\n } else {\n node.declaration = this.parseMaybeAssign();\n this.semicolon();\n }\n return this.finishNode(node, \"ExportDefaultDeclaration\")\n }\n // export var|const|let|function|class ...\n if (this.shouldParseExportStatement()) {\n node.declaration = this.parseStatement(null);\n if (node.declaration.type === \"VariableDeclaration\")\n { this.checkVariableExport(exports, node.declaration.declarations); }\n else\n { this.checkExport(exports, node.declaration.id, node.declaration.id.start); }\n node.specifiers = [];\n node.source = null;\n } else { // export { x, y as z } [from '...']\n node.declaration = null;\n node.specifiers = this.parseExportSpecifiers(exports);\n if (this.eatContextual(\"from\")) {\n if (this.type !== types$1.string) { this.unexpected(); }\n node.source = this.parseExprAtom();\n } else {\n for (var i = 0, list = node.specifiers; i < list.length; i += 1) {\n // check for keywords used as local names\n var spec = list[i];\n\n this.checkUnreserved(spec.local);\n // check if export is defined\n this.checkLocalExport(spec.local);\n\n if (spec.local.type === \"Literal\") {\n this.raise(spec.local.start, \"A string literal cannot be used as an exported binding without `from`.\");\n }\n }\n\n node.source = null;\n }\n this.semicolon();\n }\n return this.finishNode(node, \"ExportNamedDeclaration\")\n };\n\n pp$8.checkExport = function(exports, name, pos) {\n if (!exports) { return }\n if (typeof name !== \"string\")\n { name = name.type === \"Identifier\" ? name.name : name.value; }\n if (hasOwn(exports, name))\n { this.raiseRecoverable(pos, \"Duplicate export '\" + name + \"'\"); }\n exports[name] = true;\n };\n\n pp$8.checkPatternExport = function(exports, pat) {\n var type = pat.type;\n if (type === \"Identifier\")\n { this.checkExport(exports, pat, pat.start); }\n else if (type === \"ObjectPattern\")\n { for (var i = 0, list = pat.properties; i < list.length; i += 1)\n {\n var prop = list[i];\n\n this.checkPatternExport(exports, prop);\n } }\n else if (type === \"ArrayPattern\")\n { for (var i$1 = 0, list$1 = pat.elements; i$1 < list$1.length; i$1 += 1) {\n var elt = list$1[i$1];\n\n if (elt) { this.checkPatternExport(exports, elt); }\n } }\n else if (type === \"Property\")\n { this.checkPatternExport(exports, pat.value); }\n else if (type === \"AssignmentPattern\")\n { this.checkPatternExport(exports, pat.left); }\n else if (type === \"RestElement\")\n { this.checkPatternExport(exports, pat.argument); }\n else if (type === \"ParenthesizedExpression\")\n { this.checkPatternExport(exports, pat.expression); }\n };\n\n pp$8.checkVariableExport = function(exports, decls) {\n if (!exports) { return }\n for (var i = 0, list = decls; i < list.length; i += 1)\n {\n var decl = list[i];\n\n this.checkPatternExport(exports, decl.id);\n }\n };\n\n pp$8.shouldParseExportStatement = function() {\n return this.type.keyword === \"var\" ||\n this.type.keyword === \"const\" ||\n this.type.keyword === \"class\" ||\n this.type.keyword === \"function\" ||\n this.isLet() ||\n this.isAsyncFunction()\n };\n\n // Parses a comma-separated list of module exports.\n\n pp$8.parseExportSpecifiers = function(exports) {\n var nodes = [], first = true;\n // export { x, y as z } [from '...']\n this.expect(types$1.braceL);\n while (!this.eat(types$1.braceR)) {\n if (!first) {\n this.expect(types$1.comma);\n if (this.afterTrailingComma(types$1.braceR)) { break }\n } else { first = false; }\n\n var node = this.startNode();\n node.local = this.parseModuleExportName();\n node.exported = this.eatContextual(\"as\") ? this.parseModuleExportName() : node.local;\n this.checkExport(\n exports,\n node.exported,\n node.exported.start\n );\n nodes.push(this.finishNode(node, \"ExportSpecifier\"));\n }\n return nodes\n };\n\n // Parses import declaration.\n\n pp$8.parseImport = function(node) {\n this.next();\n // import '...'\n if (this.type === types$1.string) {\n node.specifiers = empty$1;\n node.source = this.parseExprAtom();\n } else {\n node.specifiers = this.parseImportSpecifiers();\n this.expectContextual(\"from\");\n node.source = this.type === types$1.string ? this.parseExprAtom() : this.unexpected();\n }\n this.semicolon();\n return this.finishNode(node, \"ImportDeclaration\")\n };\n\n // Parses a comma-separated list of module imports.\n\n pp$8.parseImportSpecifiers = function() {\n var nodes = [], first = true;\n if (this.type === types$1.name) {\n // import defaultObj, { x, y as z } from '...'\n var node = this.startNode();\n node.local = this.parseIdent();\n this.checkLValSimple(node.local, BIND_LEXICAL);\n nodes.push(this.finishNode(node, \"ImportDefaultSpecifier\"));\n if (!this.eat(types$1.comma)) { return nodes }\n }\n if (this.type === types$1.star) {\n var node$1 = this.startNode();\n this.next();\n this.expectContextual(\"as\");\n node$1.local = this.parseIdent();\n this.checkLValSimple(node$1.local, BIND_LEXICAL);\n nodes.push(this.finishNode(node$1, \"ImportNamespaceSpecifier\"));\n return nodes\n }\n this.expect(types$1.braceL);\n while (!this.eat(types$1.braceR)) {\n if (!first) {\n this.expect(types$1.comma);\n if (this.afterTrailingComma(types$1.braceR)) { break }\n } else { first = false; }\n\n var node$2 = this.startNode();\n node$2.imported = this.parseModuleExportName();\n if (this.eatContextual(\"as\")) {\n node$2.local = this.parseIdent();\n } else {\n this.checkUnreserved(node$2.imported);\n node$2.local = node$2.imported;\n }\n this.checkLValSimple(node$2.local, BIND_LEXICAL);\n nodes.push(this.finishNode(node$2, \"ImportSpecifier\"));\n }\n return nodes\n };\n\n pp$8.parseModuleExportName = function() {\n if (this.options.ecmaVersion >= 13 && this.type === types$1.string) {\n var stringLiteral = this.parseLiteral(this.value);\n if (loneSurrogate.test(stringLiteral.value)) {\n this.raise(stringLiteral.start, \"An export name cannot include a lone surrogate.\");\n }\n return stringLiteral\n }\n return this.parseIdent(true)\n };\n\n // Set `ExpressionStatement#directive` property for directive prologues.\n pp$8.adaptDirectivePrologue = function(statements) {\n for (var i = 0; i < statements.length && this.isDirectiveCandidate(statements[i]); ++i) {\n statements[i].directive = statements[i].expression.raw.slice(1, -1);\n }\n };\n pp$8.isDirectiveCandidate = function(statement) {\n return (\n this.options.ecmaVersion >= 5 &&\n statement.type === \"ExpressionStatement\" &&\n statement.expression.type === \"Literal\" &&\n typeof statement.expression.value === \"string\" &&\n // Reject parenthesized strings.\n (this.input[statement.start] === \"\\\"\" || this.input[statement.start] === \"'\")\n )\n };\n\n var pp$7 = Parser.prototype;\n\n // Convert existing expression atom to assignable pattern\n // if possible.\n\n pp$7.toAssignable = function(node, isBinding, refDestructuringErrors) {\n if (this.options.ecmaVersion >= 6 && node) {\n switch (node.type) {\n case \"Identifier\":\n if (this.inAsync && node.name === \"await\")\n { this.raise(node.start, \"Cannot use 'await' as identifier inside an async function\"); }\n break\n\n case \"ObjectPattern\":\n case \"ArrayPattern\":\n case \"AssignmentPattern\":\n case \"RestElement\":\n break\n\n case \"ObjectExpression\":\n node.type = \"ObjectPattern\";\n if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }\n for (var i = 0, list = node.properties; i < list.length; i += 1) {\n var prop = list[i];\n\n this.toAssignable(prop, isBinding);\n // Early error:\n // AssignmentRestProperty[Yield, Await] :\n // `...` DestructuringAssignmentTarget[Yield, Await]\n //\n // It is a Syntax Error if |DestructuringAssignmentTarget| is an |ArrayLiteral| or an |ObjectLiteral|.\n if (\n prop.type === \"RestElement\" &&\n (prop.argument.type === \"ArrayPattern\" || prop.argument.type === \"ObjectPattern\")\n ) {\n this.raise(prop.argument.start, \"Unexpected token\");\n }\n }\n break\n\n case \"Property\":\n // AssignmentProperty has type === \"Property\"\n if (node.kind !== \"init\") { this.raise(node.key.start, \"Object pattern can't contain getter or setter\"); }\n this.toAssignable(node.value, isBinding);\n break\n\n case \"ArrayExpression\":\n node.type = \"ArrayPattern\";\n if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }\n this.toAssignableList(node.elements, isBinding);\n break\n\n case \"SpreadElement\":\n node.type = \"RestElement\";\n this.toAssignable(node.argument, isBinding);\n if (node.argument.type === \"AssignmentPattern\")\n { this.raise(node.argument.start, \"Rest elements cannot have a default value\"); }\n break\n\n case \"AssignmentExpression\":\n if (node.operator !== \"=\") { this.raise(node.left.end, \"Only '=' operator can be used for specifying default value.\"); }\n node.type = \"AssignmentPattern\";\n delete node.operator;\n this.toAssignable(node.left, isBinding);\n break\n\n case \"ParenthesizedExpression\":\n this.toAssignable(node.expression, isBinding, refDestructuringErrors);\n break\n\n case \"ChainExpression\":\n this.raiseRecoverable(node.start, \"Optional chaining cannot appear in left-hand side\");\n break\n\n case \"MemberExpression\":\n if (!isBinding) { break }\n\n default:\n this.raise(node.start, \"Assigning to rvalue\");\n }\n } else if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }\n return node\n };\n\n // Convert list of expression atoms to binding list.\n\n pp$7.toAssignableList = function(exprList, isBinding) {\n var end = exprList.length;\n for (var i = 0; i < end; i++) {\n var elt = exprList[i];\n if (elt) { this.toAssignable(elt, isBinding); }\n }\n if (end) {\n var last = exprList[end - 1];\n if (this.options.ecmaVersion === 6 && isBinding && last && last.type === \"RestElement\" && last.argument.type !== \"Identifier\")\n { this.unexpected(last.argument.start); }\n }\n return exprList\n };\n\n // Parses spread element.\n\n pp$7.parseSpread = function(refDestructuringErrors) {\n var node = this.startNode();\n this.next();\n node.argument = this.parseMaybeAssign(false, refDestructuringErrors);\n return this.finishNode(node, \"SpreadElement\")\n };\n\n pp$7.parseRestBinding = function() {\n var node = this.startNode();\n this.next();\n\n // RestElement inside of a function parameter must be an identifier\n if (this.options.ecmaVersion === 6 && this.type !== types$1.name)\n { this.unexpected(); }\n\n node.argument = this.parseBindingAtom();\n\n return this.finishNode(node, \"RestElement\")\n };\n\n // Parses lvalue (assignable) atom.\n\n pp$7.parseBindingAtom = function() {\n if (this.options.ecmaVersion >= 6) {\n switch (this.type) {\n case types$1.bracketL:\n var node = this.startNode();\n this.next();\n node.elements = this.parseBindingList(types$1.bracketR, true, true);\n return this.finishNode(node, \"ArrayPattern\")\n\n case types$1.braceL:\n return this.parseObj(true)\n }\n }\n return this.parseIdent()\n };\n\n pp$7.parseBindingList = function(close, allowEmpty, allowTrailingComma) {\n var elts = [], first = true;\n while (!this.eat(close)) {\n if (first) { first = false; }\n else { this.expect(types$1.comma); }\n if (allowEmpty && this.type === types$1.comma) {\n elts.push(null);\n } else if (allowTrailingComma && this.afterTrailingComma(close)) {\n break\n } else if (this.type === types$1.ellipsis) {\n var rest = this.parseRestBinding();\n this.parseBindingListItem(rest);\n elts.push(rest);\n if (this.type === types$1.comma) { this.raise(this.start, \"Comma is not permitted after the rest element\"); }\n this.expect(close);\n break\n } else {\n var elem = this.parseMaybeDefault(this.start, this.startLoc);\n this.parseBindingListItem(elem);\n elts.push(elem);\n }\n }\n return elts\n };\n\n pp$7.parseBindingListItem = function(param) {\n return param\n };\n\n // Parses assignment pattern around given atom if possible.\n\n pp$7.parseMaybeDefault = function(startPos, startLoc, left) {\n left = left || this.parseBindingAtom();\n if (this.options.ecmaVersion < 6 || !this.eat(types$1.eq)) { return left }\n var node = this.startNodeAt(startPos, startLoc);\n node.left = left;\n node.right = this.parseMaybeAssign();\n return this.finishNode(node, \"AssignmentPattern\")\n };\n\n // The following three functions all verify that a node is an lvalue —\n // something that can be bound, or assigned to. In order to do so, they perform\n // a variety of checks:\n //\n // - Check that none of the bound/assigned-to identifiers are reserved words.\n // - Record name declarations for bindings in the appropriate scope.\n // - Check duplicate argument names, if checkClashes is set.\n //\n // If a complex binding pattern is encountered (e.g., object and array\n // destructuring), the entire pattern is recursively checked.\n //\n // There are three versions of checkLVal*() appropriate for different\n // circumstances:\n //\n // - checkLValSimple() shall be used if the syntactic construct supports\n // nothing other than identifiers and member expressions. Parenthesized\n // expressions are also correctly handled. This is generally appropriate for\n // constructs for which the spec says\n //\n // > It is a Syntax Error if AssignmentTargetType of [the production] is not\n // > simple.\n //\n // It is also appropriate for checking if an identifier is valid and not\n // defined elsewhere, like import declarations or function/class identifiers.\n //\n // Examples where this is used include:\n // a += …;\n // import a from '…';\n // where a is the node to be checked.\n //\n // - checkLValPattern() shall be used if the syntactic construct supports\n // anything checkLValSimple() supports, as well as object and array\n // destructuring patterns. This is generally appropriate for constructs for\n // which the spec says\n //\n // > It is a Syntax Error if [the production] is neither an ObjectLiteral nor\n // > an ArrayLiteral and AssignmentTargetType of [the production] is not\n // > simple.\n //\n // Examples where this is used include:\n // (a = …);\n // const a = …;\n // try { … } catch (a) { … }\n // where a is the node to be checked.\n //\n // - checkLValInnerPattern() shall be used if the syntactic construct supports\n // anything checkLValPattern() supports, as well as default assignment\n // patterns, rest elements, and other constructs that may appear within an\n // object or array destructuring pattern.\n //\n // As a special case, function parameters also use checkLValInnerPattern(),\n // as they also support defaults and rest constructs.\n //\n // These functions deliberately support both assignment and binding constructs,\n // as the logic for both is exceedingly similar. If the node is the target of\n // an assignment, then bindingType should be set to BIND_NONE. Otherwise, it\n // should be set to the appropriate BIND_* constant, like BIND_VAR or\n // BIND_LEXICAL.\n //\n // If the function is called with a non-BIND_NONE bindingType, then\n // additionally a checkClashes object may be specified to allow checking for\n // duplicate argument names. checkClashes is ignored if the provided construct\n // is an assignment (i.e., bindingType is BIND_NONE).\n\n pp$7.checkLValSimple = function(expr, bindingType, checkClashes) {\n if ( bindingType === void 0 ) bindingType = BIND_NONE;\n\n var isBind = bindingType !== BIND_NONE;\n\n switch (expr.type) {\n case \"Identifier\":\n if (this.strict && this.reservedWordsStrictBind.test(expr.name))\n { this.raiseRecoverable(expr.start, (isBind ? \"Binding \" : \"Assigning to \") + expr.name + \" in strict mode\"); }\n if (isBind) {\n if (bindingType === BIND_LEXICAL && expr.name === \"let\")\n { this.raiseRecoverable(expr.start, \"let is disallowed as a lexically bound name\"); }\n if (checkClashes) {\n if (hasOwn(checkClashes, expr.name))\n { this.raiseRecoverable(expr.start, \"Argument name clash\"); }\n checkClashes[expr.name] = true;\n }\n if (bindingType !== BIND_OUTSIDE) { this.declareName(expr.name, bindingType, expr.start); }\n }\n break\n\n case \"ChainExpression\":\n this.raiseRecoverable(expr.start, \"Optional chaining cannot appear in left-hand side\");\n break\n\n case \"MemberExpression\":\n if (isBind) { this.raiseRecoverable(expr.start, \"Binding member expression\"); }\n break\n\n case \"ParenthesizedExpression\":\n if (isBind) { this.raiseRecoverable(expr.start, \"Binding parenthesized expression\"); }\n return this.checkLValSimple(expr.expression, bindingType, checkClashes)\n\n default:\n this.raise(expr.start, (isBind ? \"Binding\" : \"Assigning to\") + \" rvalue\");\n }\n };\n\n pp$7.checkLValPattern = function(expr, bindingType, checkClashes) {\n if ( bindingType === void 0 ) bindingType = BIND_NONE;\n\n switch (expr.type) {\n case \"ObjectPattern\":\n for (var i = 0, list = expr.properties; i < list.length; i += 1) {\n var prop = list[i];\n\n this.checkLValInnerPattern(prop, bindingType, checkClashes);\n }\n break\n\n case \"ArrayPattern\":\n for (var i$1 = 0, list$1 = expr.elements; i$1 < list$1.length; i$1 += 1) {\n var elem = list$1[i$1];\n\n if (elem) { this.checkLValInnerPattern(elem, bindingType, checkClashes); }\n }\n break\n\n default:\n this.checkLValSimple(expr, bindingType, checkClashes);\n }\n };\n\n pp$7.checkLValInnerPattern = function(expr, bindingType, checkClashes) {\n if ( bindingType === void 0 ) bindingType = BIND_NONE;\n\n switch (expr.type) {\n case \"Property\":\n // AssignmentProperty has type === \"Property\"\n this.checkLValInnerPattern(expr.value, bindingType, checkClashes);\n break\n\n case \"AssignmentPattern\":\n this.checkLValPattern(expr.left, bindingType, checkClashes);\n break\n\n case \"RestElement\":\n this.checkLValPattern(expr.argument, bindingType, checkClashes);\n break\n\n default:\n this.checkLValPattern(expr, bindingType, checkClashes);\n }\n };\n\n // The algorithm used to determine whether a regexp can appear at a\n\n var TokContext = function TokContext(token, isExpr, preserveSpace, override, generator) {\n this.token = token;\n this.isExpr = !!isExpr;\n this.preserveSpace = !!preserveSpace;\n this.override = override;\n this.generator = !!generator;\n };\n\n var types = {\n b_stat: new TokContext(\"{\", false),\n b_expr: new TokContext(\"{\", true),\n b_tmpl: new TokContext(\"${\", false),\n p_stat: new TokContext(\"(\", false),\n p_expr: new TokContext(\"(\", true),\n q_tmpl: new TokContext(\"`\", true, true, function (p) { return p.tryReadTemplateToken(); }),\n f_stat: new TokContext(\"function\", false),\n f_expr: new TokContext(\"function\", true),\n f_expr_gen: new TokContext(\"function\", true, false, null, true),\n f_gen: new TokContext(\"function\", false, false, null, true)\n };\n\n var pp$6 = Parser.prototype;\n\n pp$6.initialContext = function() {\n return [types.b_stat]\n };\n\n pp$6.curContext = function() {\n return this.context[this.context.length - 1]\n };\n\n pp$6.braceIsBlock = function(prevType) {\n var parent = this.curContext();\n if (parent === types.f_expr || parent === types.f_stat)\n { return true }\n if (prevType === types$1.colon && (parent === types.b_stat || parent === types.b_expr))\n { return !parent.isExpr }\n\n // The check for `tt.name && exprAllowed` detects whether we are\n // after a `yield` or `of` construct. See the `updateContext` for\n // `tt.name`.\n if (prevType === types$1._return || prevType === types$1.name && this.exprAllowed)\n { return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) }\n if (prevType === types$1._else || prevType === types$1.semi || prevType === types$1.eof || prevType === types$1.parenR || prevType === types$1.arrow)\n { return true }\n if (prevType === types$1.braceL)\n { return parent === types.b_stat }\n if (prevType === types$1._var || prevType === types$1._const || prevType === types$1.name)\n { return false }\n return !this.exprAllowed\n };\n\n pp$6.inGeneratorContext = function() {\n for (var i = this.context.length - 1; i >= 1; i--) {\n var context = this.context[i];\n if (context.token === \"function\")\n { return context.generator }\n }\n return false\n };\n\n pp$6.updateContext = function(prevType) {\n var update, type = this.type;\n if (type.keyword && prevType === types$1.dot)\n { this.exprAllowed = false; }\n else if (update = type.updateContext)\n { update.call(this, prevType); }\n else\n { this.exprAllowed = type.beforeExpr; }\n };\n\n // Used to handle egde cases when token context could not be inferred correctly during tokenization phase\n\n pp$6.overrideContext = function(tokenCtx) {\n if (this.curContext() !== tokenCtx) {\n this.context[this.context.length - 1] = tokenCtx;\n }\n };\n\n // Token-specific context update code\n\n types$1.parenR.updateContext = types$1.braceR.updateContext = function() {\n if (this.context.length === 1) {\n this.exprAllowed = true;\n return\n }\n var out = this.context.pop();\n if (out === types.b_stat && this.curContext().token === \"function\") {\n out = this.context.pop();\n }\n this.exprAllowed = !out.isExpr;\n };\n\n types$1.braceL.updateContext = function(prevType) {\n this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr);\n this.exprAllowed = true;\n };\n\n types$1.dollarBraceL.updateContext = function() {\n this.context.push(types.b_tmpl);\n this.exprAllowed = true;\n };\n\n types$1.parenL.updateContext = function(prevType) {\n var statementParens = prevType === types$1._if || prevType === types$1._for || prevType === types$1._with || prevType === types$1._while;\n this.context.push(statementParens ? types.p_stat : types.p_expr);\n this.exprAllowed = true;\n };\n\n types$1.incDec.updateContext = function() {\n // tokExprAllowed stays unchanged\n };\n\n types$1._function.updateContext = types$1._class.updateContext = function(prevType) {\n if (prevType.beforeExpr && prevType !== types$1._else &&\n !(prevType === types$1.semi && this.curContext() !== types.p_stat) &&\n !(prevType === types$1._return && lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) &&\n !((prevType === types$1.colon || prevType === types$1.braceL) && this.curContext() === types.b_stat))\n { this.context.push(types.f_expr); }\n else\n { this.context.push(types.f_stat); }\n this.exprAllowed = false;\n };\n\n types$1.backQuote.updateContext = function() {\n if (this.curContext() === types.q_tmpl)\n { this.context.pop(); }\n else\n { this.context.push(types.q_tmpl); }\n this.exprAllowed = false;\n };\n\n types$1.star.updateContext = function(prevType) {\n if (prevType === types$1._function) {\n var index = this.context.length - 1;\n if (this.context[index] === types.f_expr)\n { this.context[index] = types.f_expr_gen; }\n else\n { this.context[index] = types.f_gen; }\n }\n this.exprAllowed = true;\n };\n\n types$1.name.updateContext = function(prevType) {\n var allowed = false;\n if (this.options.ecmaVersion >= 6 && prevType !== types$1.dot) {\n if (this.value === \"of\" && !this.exprAllowed ||\n this.value === \"yield\" && this.inGeneratorContext())\n { allowed = true; }\n }\n this.exprAllowed = allowed;\n };\n\n // A recursive descent parser operates by defining functions for all\n\n var pp$5 = Parser.prototype;\n\n // Check if property name clashes with already added.\n // Object/class getters and setters are not allowed to clash —\n // either with each other or with an init property — and in\n // strict mode, init properties are also not allowed to be repeated.\n\n pp$5.checkPropClash = function(prop, propHash, refDestructuringErrors) {\n if (this.options.ecmaVersion >= 9 && prop.type === \"SpreadElement\")\n { return }\n if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand))\n { return }\n var key = prop.key;\n var name;\n switch (key.type) {\n case \"Identifier\": name = key.name; break\n case \"Literal\": name = String(key.value); break\n default: return\n }\n var kind = prop.kind;\n if (this.options.ecmaVersion >= 6) {\n if (name === \"__proto__\" && kind === \"init\") {\n if (propHash.proto) {\n if (refDestructuringErrors) {\n if (refDestructuringErrors.doubleProto < 0) {\n refDestructuringErrors.doubleProto = key.start;\n }\n } else {\n this.raiseRecoverable(key.start, \"Redefinition of __proto__ property\");\n }\n }\n propHash.proto = true;\n }\n return\n }\n name = \"$\" + name;\n var other = propHash[name];\n if (other) {\n var redefinition;\n if (kind === \"init\") {\n redefinition = this.strict && other.init || other.get || other.set;\n } else {\n redefinition = other.init || other[kind];\n }\n if (redefinition)\n { this.raiseRecoverable(key.start, \"Redefinition of property\"); }\n } else {\n other = propHash[name] = {\n init: false,\n get: false,\n set: false\n };\n }\n other[kind] = true;\n };\n\n // ### Expression parsing\n\n // These nest, from the most general expression type at the top to\n // 'atomic', nondivisible expression types at the bottom. Most of\n // the functions will simply let the function(s) below them parse,\n // and, *if* the syntactic construct they handle is present, wrap\n // the AST node that the inner parser gave them in another node.\n\n // Parse a full expression. The optional arguments are used to\n // forbid the `in` operator (in for loops initalization expressions)\n // and provide reference for storing '=' operator inside shorthand\n // property assignment in contexts where both object expression\n // and object pattern might appear (so it's possible to raise\n // delayed syntax error at correct position).\n\n pp$5.parseExpression = function(forInit, refDestructuringErrors) {\n var startPos = this.start, startLoc = this.startLoc;\n var expr = this.parseMaybeAssign(forInit, refDestructuringErrors);\n if (this.type === types$1.comma) {\n var node = this.startNodeAt(startPos, startLoc);\n node.expressions = [expr];\n while (this.eat(types$1.comma)) { node.expressions.push(this.parseMaybeAssign(forInit, refDestructuringErrors)); }\n return this.finishNode(node, \"SequenceExpression\")\n }\n return expr\n };\n\n // Parse an assignment expression. This includes applications of\n // operators like `+=`.\n\n pp$5.parseMaybeAssign = function(forInit, refDestructuringErrors, afterLeftParse) {\n if (this.isContextual(\"yield\")) {\n if (this.inGenerator) { return this.parseYield(forInit) }\n // The tokenizer will assume an expression is allowed after\n // `yield`, but this isn't that kind of yield\n else { this.exprAllowed = false; }\n }\n\n var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1, oldDoubleProto = -1;\n if (refDestructuringErrors) {\n oldParenAssign = refDestructuringErrors.parenthesizedAssign;\n oldTrailingComma = refDestructuringErrors.trailingComma;\n oldDoubleProto = refDestructuringErrors.doubleProto;\n refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = -1;\n } else {\n refDestructuringErrors = new DestructuringErrors;\n ownDestructuringErrors = true;\n }\n\n var startPos = this.start, startLoc = this.startLoc;\n if (this.type === types$1.parenL || this.type === types$1.name) {\n this.potentialArrowAt = this.start;\n this.potentialArrowInForAwait = forInit === \"await\";\n }\n var left = this.parseMaybeConditional(forInit, refDestructuringErrors);\n if (afterLeftParse) { left = afterLeftParse.call(this, left, startPos, startLoc); }\n if (this.type.isAssign) {\n var node = this.startNodeAt(startPos, startLoc);\n node.operator = this.value;\n if (this.type === types$1.eq)\n { left = this.toAssignable(left, false, refDestructuringErrors); }\n if (!ownDestructuringErrors) {\n refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = refDestructuringErrors.doubleProto = -1;\n }\n if (refDestructuringErrors.shorthandAssign >= left.start)\n { refDestructuringErrors.shorthandAssign = -1; } // reset because shorthand default was used correctly\n if (this.type === types$1.eq)\n { this.checkLValPattern(left); }\n else\n { this.checkLValSimple(left); }\n node.left = left;\n this.next();\n node.right = this.parseMaybeAssign(forInit);\n if (oldDoubleProto > -1) { refDestructuringErrors.doubleProto = oldDoubleProto; }\n return this.finishNode(node, \"AssignmentExpression\")\n } else {\n if (ownDestructuringErrors) { this.checkExpressionErrors(refDestructuringErrors, true); }\n }\n if (oldParenAssign > -1) { refDestructuringErrors.parenthesizedAssign = oldParenAssign; }\n if (oldTrailingComma > -1) { refDestructuringErrors.trailingComma = oldTrailingComma; }\n return left\n };\n\n // Parse a ternary conditional (`?:`) operator.\n\n pp$5.parseMaybeConditional = function(forInit, refDestructuringErrors) {\n var startPos = this.start, startLoc = this.startLoc;\n var expr = this.parseExprOps(forInit, refDestructuringErrors);\n if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }\n if (this.eat(types$1.question)) {\n var node = this.startNodeAt(startPos, startLoc);\n node.test = expr;\n node.consequent = this.parseMaybeAssign();\n this.expect(types$1.colon);\n node.alternate = this.parseMaybeAssign(forInit);\n return this.finishNode(node, \"ConditionalExpression\")\n }\n return expr\n };\n\n // Start the precedence parser.\n\n pp$5.parseExprOps = function(forInit, refDestructuringErrors) {\n var startPos = this.start, startLoc = this.startLoc;\n var expr = this.parseMaybeUnary(refDestructuringErrors, false, false, forInit);\n if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }\n return expr.start === startPos && expr.type === \"ArrowFunctionExpression\" ? expr : this.parseExprOp(expr, startPos, startLoc, -1, forInit)\n };\n\n // Parse binary operators with the operator precedence parsing\n // algorithm. `left` is the left-hand side of the operator.\n // `minPrec` provides context that allows the function to stop and\n // defer further parser to one of its callers when it encounters an\n // operator that has a lower precedence than the set it is parsing.\n\n pp$5.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, forInit) {\n var prec = this.type.binop;\n if (prec != null && (!forInit || this.type !== types$1._in)) {\n if (prec > minPrec) {\n var logical = this.type === types$1.logicalOR || this.type === types$1.logicalAND;\n var coalesce = this.type === types$1.coalesce;\n if (coalesce) {\n // Handle the precedence of `tt.coalesce` as equal to the range of logical expressions.\n // In other words, `node.right` shouldn't contain logical expressions in order to check the mixed error.\n prec = types$1.logicalAND.binop;\n }\n var op = this.value;\n this.next();\n var startPos = this.start, startLoc = this.startLoc;\n var right = this.parseExprOp(this.parseMaybeUnary(null, false, false, forInit), startPos, startLoc, prec, forInit);\n var node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical || coalesce);\n if ((logical && this.type === types$1.coalesce) || (coalesce && (this.type === types$1.logicalOR || this.type === types$1.logicalAND))) {\n this.raiseRecoverable(this.start, \"Logical expressions and coalesce expressions cannot be mixed. Wrap either by parentheses\");\n }\n return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, forInit)\n }\n }\n return left\n };\n\n pp$5.buildBinary = function(startPos, startLoc, left, right, op, logical) {\n if (right.type === \"PrivateIdentifier\") { this.raise(right.start, \"Private identifier can only be left side of binary expression\"); }\n var node = this.startNodeAt(startPos, startLoc);\n node.left = left;\n node.operator = op;\n node.right = right;\n return this.finishNode(node, logical ? \"LogicalExpression\" : \"BinaryExpression\")\n };\n\n // Parse unary operators, both prefix and postfix.\n\n pp$5.parseMaybeUnary = function(refDestructuringErrors, sawUnary, incDec, forInit) {\n var startPos = this.start, startLoc = this.startLoc, expr;\n if (this.isContextual(\"await\") && this.canAwait) {\n expr = this.parseAwait(forInit);\n sawUnary = true;\n } else if (this.type.prefix) {\n var node = this.startNode(), update = this.type === types$1.incDec;\n node.operator = this.value;\n node.prefix = true;\n this.next();\n node.argument = this.parseMaybeUnary(null, true, update, forInit);\n this.checkExpressionErrors(refDestructuringErrors, true);\n if (update) { this.checkLValSimple(node.argument); }\n else if (this.strict && node.operator === \"delete\" &&\n node.argument.type === \"Identifier\")\n { this.raiseRecoverable(node.start, \"Deleting local variable in strict mode\"); }\n else if (node.operator === \"delete\" && isPrivateFieldAccess(node.argument))\n { this.raiseRecoverable(node.start, \"Private fields can not be deleted\"); }\n else { sawUnary = true; }\n expr = this.finishNode(node, update ? \"UpdateExpression\" : \"UnaryExpression\");\n } else if (!sawUnary && this.type === types$1.privateId) {\n if (forInit || this.privateNameStack.length === 0) { this.unexpected(); }\n expr = this.parsePrivateIdent();\n // only could be private fields in 'in', such as #x in obj\n if (this.type !== types$1._in) { this.unexpected(); }\n } else {\n expr = this.parseExprSubscripts(refDestructuringErrors, forInit);\n if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }\n while (this.type.postfix && !this.canInsertSemicolon()) {\n var node$1 = this.startNodeAt(startPos, startLoc);\n node$1.operator = this.value;\n node$1.prefix = false;\n node$1.argument = expr;\n this.checkLValSimple(expr);\n this.next();\n expr = this.finishNode(node$1, \"UpdateExpression\");\n }\n }\n\n if (!incDec && this.eat(types$1.starstar)) {\n if (sawUnary)\n { this.unexpected(this.lastTokStart); }\n else\n { return this.buildBinary(startPos, startLoc, expr, this.parseMaybeUnary(null, false, false, forInit), \"**\", false) }\n } else {\n return expr\n }\n };\n\n function isPrivateFieldAccess(node) {\n return (\n node.type === \"MemberExpression\" && node.property.type === \"PrivateIdentifier\" ||\n node.type === \"ChainExpression\" && isPrivateFieldAccess(node.expression)\n )\n }\n\n // Parse call, dot, and `[]`-subscript expressions.\n\n pp$5.parseExprSubscripts = function(refDestructuringErrors, forInit) {\n var startPos = this.start, startLoc = this.startLoc;\n var expr = this.parseExprAtom(refDestructuringErrors, forInit);\n if (expr.type === \"ArrowFunctionExpression\" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== \")\")\n { return expr }\n var result = this.parseSubscripts(expr, startPos, startLoc, false, forInit);\n if (refDestructuringErrors && result.type === \"MemberExpression\") {\n if (refDestructuringErrors.parenthesizedAssign >= result.start) { refDestructuringErrors.parenthesizedAssign = -1; }\n if (refDestructuringErrors.parenthesizedBind >= result.start) { refDestructuringErrors.parenthesizedBind = -1; }\n if (refDestructuringErrors.trailingComma >= result.start) { refDestructuringErrors.trailingComma = -1; }\n }\n return result\n };\n\n pp$5.parseSubscripts = function(base, startPos, startLoc, noCalls, forInit) {\n var maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === \"Identifier\" && base.name === \"async\" &&\n this.lastTokEnd === base.end && !this.canInsertSemicolon() && base.end - base.start === 5 &&\n this.potentialArrowAt === base.start;\n var optionalChained = false;\n\n while (true) {\n var element = this.parseSubscript(base, startPos, startLoc, noCalls, maybeAsyncArrow, optionalChained, forInit);\n\n if (element.optional) { optionalChained = true; }\n if (element === base || element.type === \"ArrowFunctionExpression\") {\n if (optionalChained) {\n var chainNode = this.startNodeAt(startPos, startLoc);\n chainNode.expression = element;\n element = this.finishNode(chainNode, \"ChainExpression\");\n }\n return element\n }\n\n base = element;\n }\n };\n\n pp$5.parseSubscript = function(base, startPos, startLoc, noCalls, maybeAsyncArrow, optionalChained, forInit) {\n var optionalSupported = this.options.ecmaVersion >= 11;\n var optional = optionalSupported && this.eat(types$1.questionDot);\n if (noCalls && optional) { this.raise(this.lastTokStart, \"Optional chaining cannot appear in the callee of new expressions\"); }\n\n var computed = this.eat(types$1.bracketL);\n if (computed || (optional && this.type !== types$1.parenL && this.type !== types$1.backQuote) || this.eat(types$1.dot)) {\n var node = this.startNodeAt(startPos, startLoc);\n node.object = base;\n if (computed) {\n node.property = this.parseExpression();\n this.expect(types$1.bracketR);\n } else if (this.type === types$1.privateId && base.type !== \"Super\") {\n node.property = this.parsePrivateIdent();\n } else {\n node.property = this.parseIdent(this.options.allowReserved !== \"never\");\n }\n node.computed = !!computed;\n if (optionalSupported) {\n node.optional = optional;\n }\n base = this.finishNode(node, \"MemberExpression\");\n } else if (!noCalls && this.eat(types$1.parenL)) {\n var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;\n this.yieldPos = 0;\n this.awaitPos = 0;\n this.awaitIdentPos = 0;\n var exprList = this.parseExprList(types$1.parenR, this.options.ecmaVersion >= 8, false, refDestructuringErrors);\n if (maybeAsyncArrow && !optional && !this.canInsertSemicolon() && this.eat(types$1.arrow)) {\n this.checkPatternErrors(refDestructuringErrors, false);\n this.checkYieldAwaitInDefaultParams();\n if (this.awaitIdentPos > 0)\n { this.raise(this.awaitIdentPos, \"Cannot use 'await' as identifier inside an async function\"); }\n this.yieldPos = oldYieldPos;\n this.awaitPos = oldAwaitPos;\n this.awaitIdentPos = oldAwaitIdentPos;\n return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, true, forInit)\n }\n this.checkExpressionErrors(refDestructuringErrors, true);\n this.yieldPos = oldYieldPos || this.yieldPos;\n this.awaitPos = oldAwaitPos || this.awaitPos;\n this.awaitIdentPos = oldAwaitIdentPos || this.awaitIdentPos;\n var node$1 = this.startNodeAt(startPos, startLoc);\n node$1.callee = base;\n node$1.arguments = exprList;\n if (optionalSupported) {\n node$1.optional = optional;\n }\n base = this.finishNode(node$1, \"CallExpression\");\n } else if (this.type === types$1.backQuote) {\n if (optional || optionalChained) {\n this.raise(this.start, \"Optional chaining cannot appear in the tag of tagged template expressions\");\n }\n var node$2 = this.startNodeAt(startPos, startLoc);\n node$2.tag = base;\n node$2.quasi = this.parseTemplate({isTagged: true});\n base = this.finishNode(node$2, \"TaggedTemplateExpression\");\n }\n return base\n };\n\n // Parse an atomic expression — either a single token that is an\n // expression, an expression started by a keyword like `function` or\n // `new`, or an expression wrapped in punctuation like `()`, `[]`,\n // or `{}`.\n\n pp$5.parseExprAtom = function(refDestructuringErrors, forInit) {\n // If a division operator appears in an expression position, the\n // tokenizer got confused, and we force it to read a regexp instead.\n if (this.type === types$1.slash) { this.readRegexp(); }\n\n var node, canBeArrow = this.potentialArrowAt === this.start;\n switch (this.type) {\n case types$1._super:\n if (!this.allowSuper)\n { this.raise(this.start, \"'super' keyword outside a method\"); }\n node = this.startNode();\n this.next();\n if (this.type === types$1.parenL && !this.allowDirectSuper)\n { this.raise(node.start, \"super() call outside constructor of a subclass\"); }\n // The `super` keyword can appear at below:\n // SuperProperty:\n // super [ Expression ]\n // super . IdentifierName\n // SuperCall:\n // super ( Arguments )\n if (this.type !== types$1.dot && this.type !== types$1.bracketL && this.type !== types$1.parenL)\n { this.unexpected(); }\n return this.finishNode(node, \"Super\")\n\n case types$1._this:\n node = this.startNode();\n this.next();\n return this.finishNode(node, \"ThisExpression\")\n\n case types$1.name:\n var startPos = this.start, startLoc = this.startLoc, containsEsc = this.containsEsc;\n var id = this.parseIdent(false);\n if (this.options.ecmaVersion >= 8 && !containsEsc && id.name === \"async\" && !this.canInsertSemicolon() && this.eat(types$1._function)) {\n this.overrideContext(types.f_expr);\n return this.parseFunction(this.startNodeAt(startPos, startLoc), 0, false, true, forInit)\n }\n if (canBeArrow && !this.canInsertSemicolon()) {\n if (this.eat(types$1.arrow))\n { return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false, forInit) }\n if (this.options.ecmaVersion >= 8 && id.name === \"async\" && this.type === types$1.name && !containsEsc &&\n (!this.potentialArrowInForAwait || this.value !== \"of\" || this.containsEsc)) {\n id = this.parseIdent(false);\n if (this.canInsertSemicolon() || !this.eat(types$1.arrow))\n { this.unexpected(); }\n return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true, forInit)\n }\n }\n return id\n\n case types$1.regexp:\n var value = this.value;\n node = this.parseLiteral(value.value);\n node.regex = {pattern: value.pattern, flags: value.flags};\n return node\n\n case types$1.num: case types$1.string:\n return this.parseLiteral(this.value)\n\n case types$1._null: case types$1._true: case types$1._false:\n node = this.startNode();\n node.value = this.type === types$1._null ? null : this.type === types$1._true;\n node.raw = this.type.keyword;\n this.next();\n return this.finishNode(node, \"Literal\")\n\n case types$1.parenL:\n var start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow, forInit);\n if (refDestructuringErrors) {\n if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr))\n { refDestructuringErrors.parenthesizedAssign = start; }\n if (refDestructuringErrors.parenthesizedBind < 0)\n { refDestructuringErrors.parenthesizedBind = start; }\n }\n return expr\n\n case types$1.bracketL:\n node = this.startNode();\n this.next();\n node.elements = this.parseExprList(types$1.bracketR, true, true, refDestructuringErrors);\n return this.finishNode(node, \"ArrayExpression\")\n\n case types$1.braceL:\n this.overrideContext(types.b_expr);\n return this.parseObj(false, refDestructuringErrors)\n\n case types$1._function:\n node = this.startNode();\n this.next();\n return this.parseFunction(node, 0)\n\n case types$1._class:\n return this.parseClass(this.startNode(), false)\n\n case types$1._new:\n return this.parseNew()\n\n case types$1.backQuote:\n return this.parseTemplate()\n\n case types$1._import:\n if (this.options.ecmaVersion >= 11) {\n return this.parseExprImport()\n } else {\n return this.unexpected()\n }\n\n default:\n this.unexpected();\n }\n };\n\n pp$5.parseExprImport = function() {\n var node = this.startNode();\n\n // Consume `import` as an identifier for `import.meta`.\n // Because `this.parseIdent(true)` doesn't check escape sequences, it needs the check of `this.containsEsc`.\n if (this.containsEsc) { this.raiseRecoverable(this.start, \"Escape sequence in keyword import\"); }\n var meta = this.parseIdent(true);\n\n switch (this.type) {\n case types$1.parenL:\n return this.parseDynamicImport(node)\n case types$1.dot:\n node.meta = meta;\n return this.parseImportMeta(node)\n default:\n this.unexpected();\n }\n };\n\n pp$5.parseDynamicImport = function(node) {\n this.next(); // skip `(`\n\n // Parse node.source.\n node.source = this.parseMaybeAssign();\n\n // Verify ending.\n if (!this.eat(types$1.parenR)) {\n var errorPos = this.start;\n if (this.eat(types$1.comma) && this.eat(types$1.parenR)) {\n this.raiseRecoverable(errorPos, \"Trailing comma is not allowed in import()\");\n } else {\n this.unexpected(errorPos);\n }\n }\n\n return this.finishNode(node, \"ImportExpression\")\n };\n\n pp$5.parseImportMeta = function(node) {\n this.next(); // skip `.`\n\n var containsEsc = this.containsEsc;\n node.property = this.parseIdent(true);\n\n if (node.property.name !== \"meta\")\n { this.raiseRecoverable(node.property.start, \"The only valid meta property for import is 'import.meta'\"); }\n if (containsEsc)\n { this.raiseRecoverable(node.start, \"'import.meta' must not contain escaped characters\"); }\n if (this.options.sourceType !== \"module\" && !this.options.allowImportExportEverywhere)\n { this.raiseRecoverable(node.start, \"Cannot use 'import.meta' outside a module\"); }\n\n return this.finishNode(node, \"MetaProperty\")\n };\n\n pp$5.parseLiteral = function(value) {\n var node = this.startNode();\n node.value = value;\n node.raw = this.input.slice(this.start, this.end);\n if (node.raw.charCodeAt(node.raw.length - 1) === 110) { node.bigint = node.raw.slice(0, -1).replace(/_/g, \"\"); }\n this.next();\n return this.finishNode(node, \"Literal\")\n };\n\n pp$5.parseParenExpression = function() {\n this.expect(types$1.parenL);\n var val = this.parseExpression();\n this.expect(types$1.parenR);\n return val\n };\n\n pp$5.parseParenAndDistinguishExpression = function(canBeArrow, forInit) {\n var startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8;\n if (this.options.ecmaVersion >= 6) {\n this.next();\n\n var innerStartPos = this.start, innerStartLoc = this.startLoc;\n var exprList = [], first = true, lastIsComma = false;\n var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, spreadStart;\n this.yieldPos = 0;\n this.awaitPos = 0;\n // Do not save awaitIdentPos to allow checking awaits nested in parameters\n while (this.type !== types$1.parenR) {\n first ? first = false : this.expect(types$1.comma);\n if (allowTrailingComma && this.afterTrailingComma(types$1.parenR, true)) {\n lastIsComma = true;\n break\n } else if (this.type === types$1.ellipsis) {\n spreadStart = this.start;\n exprList.push(this.parseParenItem(this.parseRestBinding()));\n if (this.type === types$1.comma) { this.raise(this.start, \"Comma is not permitted after the rest element\"); }\n break\n } else {\n exprList.push(this.parseMaybeAssign(false, refDestructuringErrors, this.parseParenItem));\n }\n }\n var innerEndPos = this.lastTokEnd, innerEndLoc = this.lastTokEndLoc;\n this.expect(types$1.parenR);\n\n if (canBeArrow && !this.canInsertSemicolon() && this.eat(types$1.arrow)) {\n this.checkPatternErrors(refDestructuringErrors, false);\n this.checkYieldAwaitInDefaultParams();\n this.yieldPos = oldYieldPos;\n this.awaitPos = oldAwaitPos;\n return this.parseParenArrowList(startPos, startLoc, exprList, forInit)\n }\n\n if (!exprList.length || lastIsComma) { this.unexpected(this.lastTokStart); }\n if (spreadStart) { this.unexpected(spreadStart); }\n this.checkExpressionErrors(refDestructuringErrors, true);\n this.yieldPos = oldYieldPos || this.yieldPos;\n this.awaitPos = oldAwaitPos || this.awaitPos;\n\n if (exprList.length > 1) {\n val = this.startNodeAt(innerStartPos, innerStartLoc);\n val.expressions = exprList;\n this.finishNodeAt(val, \"SequenceExpression\", innerEndPos, innerEndLoc);\n } else {\n val = exprList[0];\n }\n } else {\n val = this.parseParenExpression();\n }\n\n if (this.options.preserveParens) {\n var par = this.startNodeAt(startPos, startLoc);\n par.expression = val;\n return this.finishNode(par, \"ParenthesizedExpression\")\n } else {\n return val\n }\n };\n\n pp$5.parseParenItem = function(item) {\n return item\n };\n\n pp$5.parseParenArrowList = function(startPos, startLoc, exprList, forInit) {\n return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, false, forInit)\n };\n\n // New's precedence is slightly tricky. It must allow its argument to\n // be a `[]` or dot subscript expression, but not a call — at least,\n // not without wrapping it in parentheses. Thus, it uses the noCalls\n // argument to parseSubscripts to prevent it from consuming the\n // argument list.\n\n var empty = [];\n\n pp$5.parseNew = function() {\n if (this.containsEsc) { this.raiseRecoverable(this.start, \"Escape sequence in keyword new\"); }\n var node = this.startNode();\n var meta = this.parseIdent(true);\n if (this.options.ecmaVersion >= 6 && this.eat(types$1.dot)) {\n node.meta = meta;\n var containsEsc = this.containsEsc;\n node.property = this.parseIdent(true);\n if (node.property.name !== \"target\")\n { this.raiseRecoverable(node.property.start, \"The only valid meta property for new is 'new.target'\"); }\n if (containsEsc)\n { this.raiseRecoverable(node.start, \"'new.target' must not contain escaped characters\"); }\n if (!this.allowNewDotTarget)\n { this.raiseRecoverable(node.start, \"'new.target' can only be used in functions and class static block\"); }\n return this.finishNode(node, \"MetaProperty\")\n }\n var startPos = this.start, startLoc = this.startLoc, isImport = this.type === types$1._import;\n node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true, false);\n if (isImport && node.callee.type === \"ImportExpression\") {\n this.raise(startPos, \"Cannot use new with import()\");\n }\n if (this.eat(types$1.parenL)) { node.arguments = this.parseExprList(types$1.parenR, this.options.ecmaVersion >= 8, false); }\n else { node.arguments = empty; }\n return this.finishNode(node, \"NewExpression\")\n };\n\n // Parse template expression.\n\n pp$5.parseTemplateElement = function(ref) {\n var isTagged = ref.isTagged;\n\n var elem = this.startNode();\n if (this.type === types$1.invalidTemplate) {\n if (!isTagged) {\n this.raiseRecoverable(this.start, \"Bad escape sequence in untagged template literal\");\n }\n elem.value = {\n raw: this.value,\n cooked: null\n };\n } else {\n elem.value = {\n raw: this.input.slice(this.start, this.end).replace(/\\r\\n?/g, \"\\n\"),\n cooked: this.value\n };\n }\n this.next();\n elem.tail = this.type === types$1.backQuote;\n return this.finishNode(elem, \"TemplateElement\")\n };\n\n pp$5.parseTemplate = function(ref) {\n if ( ref === void 0 ) ref = {};\n var isTagged = ref.isTagged; if ( isTagged === void 0 ) isTagged = false;\n\n var node = this.startNode();\n this.next();\n node.expressions = [];\n var curElt = this.parseTemplateElement({isTagged: isTagged});\n node.quasis = [curElt];\n while (!curElt.tail) {\n if (this.type === types$1.eof) { this.raise(this.pos, \"Unterminated template literal\"); }\n this.expect(types$1.dollarBraceL);\n node.expressions.push(this.parseExpression());\n this.expect(types$1.braceR);\n node.quasis.push(curElt = this.parseTemplateElement({isTagged: isTagged}));\n }\n this.next();\n return this.finishNode(node, \"TemplateLiteral\")\n };\n\n pp$5.isAsyncProp = function(prop) {\n return !prop.computed && prop.key.type === \"Identifier\" && prop.key.name === \"async\" &&\n (this.type === types$1.name || this.type === types$1.num || this.type === types$1.string || this.type === types$1.bracketL || this.type.keyword || (this.options.ecmaVersion >= 9 && this.type === types$1.star)) &&\n !lineBreak.test(this.input.slice(this.lastTokEnd, this.start))\n };\n\n // Parse an object literal or binding pattern.\n\n pp$5.parseObj = function(isPattern, refDestructuringErrors) {\n var node = this.startNode(), first = true, propHash = {};\n node.properties = [];\n this.next();\n while (!this.eat(types$1.braceR)) {\n if (!first) {\n this.expect(types$1.comma);\n if (this.options.ecmaVersion >= 5 && this.afterTrailingComma(types$1.braceR)) { break }\n } else { first = false; }\n\n var prop = this.parseProperty(isPattern, refDestructuringErrors);\n if (!isPattern) { this.checkPropClash(prop, propHash, refDestructuringErrors); }\n node.properties.push(prop);\n }\n return this.finishNode(node, isPattern ? \"ObjectPattern\" : \"ObjectExpression\")\n };\n\n pp$5.parseProperty = function(isPattern, refDestructuringErrors) {\n var prop = this.startNode(), isGenerator, isAsync, startPos, startLoc;\n if (this.options.ecmaVersion >= 9 && this.eat(types$1.ellipsis)) {\n if (isPattern) {\n prop.argument = this.parseIdent(false);\n if (this.type === types$1.comma) {\n this.raise(this.start, \"Comma is not permitted after the rest element\");\n }\n return this.finishNode(prop, \"RestElement\")\n }\n // Parse argument.\n prop.argument = this.parseMaybeAssign(false, refDestructuringErrors);\n // To disallow trailing comma via `this.toAssignable()`.\n if (this.type === types$1.comma && refDestructuringErrors && refDestructuringErrors.trailingComma < 0) {\n refDestructuringErrors.trailingComma = this.start;\n }\n // Finish\n return this.finishNode(prop, \"SpreadElement\")\n }\n if (this.options.ecmaVersion >= 6) {\n prop.method = false;\n prop.shorthand = false;\n if (isPattern || refDestructuringErrors) {\n startPos = this.start;\n startLoc = this.startLoc;\n }\n if (!isPattern)\n { isGenerator = this.eat(types$1.star); }\n }\n var containsEsc = this.containsEsc;\n this.parsePropertyName(prop);\n if (!isPattern && !containsEsc && this.options.ecmaVersion >= 8 && !isGenerator && this.isAsyncProp(prop)) {\n isAsync = true;\n isGenerator = this.options.ecmaVersion >= 9 && this.eat(types$1.star);\n this.parsePropertyName(prop, refDestructuringErrors);\n } else {\n isAsync = false;\n }\n this.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc);\n return this.finishNode(prop, \"Property\")\n };\n\n pp$5.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc) {\n if ((isGenerator || isAsync) && this.type === types$1.colon)\n { this.unexpected(); }\n\n if (this.eat(types$1.colon)) {\n prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors);\n prop.kind = \"init\";\n } else if (this.options.ecmaVersion >= 6 && this.type === types$1.parenL) {\n if (isPattern) { this.unexpected(); }\n prop.kind = \"init\";\n prop.method = true;\n prop.value = this.parseMethod(isGenerator, isAsync);\n } else if (!isPattern && !containsEsc &&\n this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === \"Identifier\" &&\n (prop.key.name === \"get\" || prop.key.name === \"set\") &&\n (this.type !== types$1.comma && this.type !== types$1.braceR && this.type !== types$1.eq)) {\n if (isGenerator || isAsync) { this.unexpected(); }\n prop.kind = prop.key.name;\n this.parsePropertyName(prop);\n prop.value = this.parseMethod(false);\n var paramCount = prop.kind === \"get\" ? 0 : 1;\n if (prop.value.params.length !== paramCount) {\n var start = prop.value.start;\n if (prop.kind === \"get\")\n { this.raiseRecoverable(start, \"getter should have no params\"); }\n else\n { this.raiseRecoverable(start, \"setter should have exactly one param\"); }\n } else {\n if (prop.kind === \"set\" && prop.value.params[0].type === \"RestElement\")\n { this.raiseRecoverable(prop.value.params[0].start, \"Setter cannot use rest params\"); }\n }\n } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === \"Identifier\") {\n if (isGenerator || isAsync) { this.unexpected(); }\n this.checkUnreserved(prop.key);\n if (prop.key.name === \"await\" && !this.awaitIdentPos)\n { this.awaitIdentPos = startPos; }\n prop.kind = \"init\";\n if (isPattern) {\n prop.value = this.parseMaybeDefault(startPos, startLoc, this.copyNode(prop.key));\n } else if (this.type === types$1.eq && refDestructuringErrors) {\n if (refDestructuringErrors.shorthandAssign < 0)\n { refDestructuringErrors.shorthandAssign = this.start; }\n prop.value = this.parseMaybeDefault(startPos, startLoc, this.copyNode(prop.key));\n } else {\n prop.value = this.copyNode(prop.key);\n }\n prop.shorthand = true;\n } else { this.unexpected(); }\n };\n\n pp$5.parsePropertyName = function(prop) {\n if (this.options.ecmaVersion >= 6) {\n if (this.eat(types$1.bracketL)) {\n prop.computed = true;\n prop.key = this.parseMaybeAssign();\n this.expect(types$1.bracketR);\n return prop.key\n } else {\n prop.computed = false;\n }\n }\n return prop.key = this.type === types$1.num || this.type === types$1.string ? this.parseExprAtom() : this.parseIdent(this.options.allowReserved !== \"never\")\n };\n\n // Initialize empty function node.\n\n pp$5.initFunction = function(node) {\n node.id = null;\n if (this.options.ecmaVersion >= 6) { node.generator = node.expression = false; }\n if (this.options.ecmaVersion >= 8) { node.async = false; }\n };\n\n // Parse object or class method.\n\n pp$5.parseMethod = function(isGenerator, isAsync, allowDirectSuper) {\n var node = this.startNode(), oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;\n\n this.initFunction(node);\n if (this.options.ecmaVersion >= 6)\n { node.generator = isGenerator; }\n if (this.options.ecmaVersion >= 8)\n { node.async = !!isAsync; }\n\n this.yieldPos = 0;\n this.awaitPos = 0;\n this.awaitIdentPos = 0;\n this.enterScope(functionFlags(isAsync, node.generator) | SCOPE_SUPER | (allowDirectSuper ? SCOPE_DIRECT_SUPER : 0));\n\n this.expect(types$1.parenL);\n node.params = this.parseBindingList(types$1.parenR, false, this.options.ecmaVersion >= 8);\n this.checkYieldAwaitInDefaultParams();\n this.parseFunctionBody(node, false, true, false);\n\n this.yieldPos = oldYieldPos;\n this.awaitPos = oldAwaitPos;\n this.awaitIdentPos = oldAwaitIdentPos;\n return this.finishNode(node, \"FunctionExpression\")\n };\n\n // Parse arrow function expression with given parameters.\n\n pp$5.parseArrowExpression = function(node, params, isAsync, forInit) {\n var oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;\n\n this.enterScope(functionFlags(isAsync, false) | SCOPE_ARROW);\n this.initFunction(node);\n if (this.options.ecmaVersion >= 8) { node.async = !!isAsync; }\n\n this.yieldPos = 0;\n this.awaitPos = 0;\n this.awaitIdentPos = 0;\n\n node.params = this.toAssignableList(params, true);\n this.parseFunctionBody(node, true, false, forInit);\n\n this.yieldPos = oldYieldPos;\n this.awaitPos = oldAwaitPos;\n this.awaitIdentPos = oldAwaitIdentPos;\n return this.finishNode(node, \"ArrowFunctionExpression\")\n };\n\n // Parse function body and check parameters.\n\n pp$5.parseFunctionBody = function(node, isArrowFunction, isMethod, forInit) {\n var isExpression = isArrowFunction && this.type !== types$1.braceL;\n var oldStrict = this.strict, useStrict = false;\n\n if (isExpression) {\n node.body = this.parseMaybeAssign(forInit);\n node.expression = true;\n this.checkParams(node, false);\n } else {\n var nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(node.params);\n if (!oldStrict || nonSimple) {\n useStrict = this.strictDirective(this.end);\n // If this is a strict mode function, verify that argument names\n // are not repeated, and it does not try to bind the words `eval`\n // or `arguments`.\n if (useStrict && nonSimple)\n { this.raiseRecoverable(node.start, \"Illegal 'use strict' directive in function with non-simple parameter list\"); }\n }\n // Start a new scope with regard to labels and the `inFunction`\n // flag (restore them to their old value afterwards).\n var oldLabels = this.labels;\n this.labels = [];\n if (useStrict) { this.strict = true; }\n\n // Add the params to varDeclaredNames to ensure that an error is thrown\n // if a let/const declaration in the function clashes with one of the params.\n this.checkParams(node, !oldStrict && !useStrict && !isArrowFunction && !isMethod && this.isSimpleParamList(node.params));\n // Ensure the function name isn't a forbidden identifier in strict mode, e.g. 'eval'\n if (this.strict && node.id) { this.checkLValSimple(node.id, BIND_OUTSIDE); }\n node.body = this.parseBlock(false, undefined, useStrict && !oldStrict);\n node.expression = false;\n this.adaptDirectivePrologue(node.body.body);\n this.labels = oldLabels;\n }\n this.exitScope();\n };\n\n pp$5.isSimpleParamList = function(params) {\n for (var i = 0, list = params; i < list.length; i += 1)\n {\n var param = list[i];\n\n if (param.type !== \"Identifier\") { return false\n } }\n return true\n };\n\n // Checks function params for various disallowed patterns such as using \"eval\"\n // or \"arguments\" and duplicate parameters.\n\n pp$5.checkParams = function(node, allowDuplicates) {\n var nameHash = Object.create(null);\n for (var i = 0, list = node.params; i < list.length; i += 1)\n {\n var param = list[i];\n\n this.checkLValInnerPattern(param, BIND_VAR, allowDuplicates ? null : nameHash);\n }\n };\n\n // Parses a comma-separated list of expressions, and returns them as\n // an array. `close` is the token type that ends the list, and\n // `allowEmpty` can be turned on to allow subsequent commas with\n // nothing in between them to be parsed as `null` (which is needed\n // for array literals).\n\n pp$5.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) {\n var elts = [], first = true;\n while (!this.eat(close)) {\n if (!first) {\n this.expect(types$1.comma);\n if (allowTrailingComma && this.afterTrailingComma(close)) { break }\n } else { first = false; }\n\n var elt = (void 0);\n if (allowEmpty && this.type === types$1.comma)\n { elt = null; }\n else if (this.type === types$1.ellipsis) {\n elt = this.parseSpread(refDestructuringErrors);\n if (refDestructuringErrors && this.type === types$1.comma && refDestructuringErrors.trailingComma < 0)\n { refDestructuringErrors.trailingComma = this.start; }\n } else {\n elt = this.parseMaybeAssign(false, refDestructuringErrors);\n }\n elts.push(elt);\n }\n return elts\n };\n\n pp$5.checkUnreserved = function(ref) {\n var start = ref.start;\n var end = ref.end;\n var name = ref.name;\n\n if (this.inGenerator && name === \"yield\")\n { this.raiseRecoverable(start, \"Cannot use 'yield' as identifier inside a generator\"); }\n if (this.inAsync && name === \"await\")\n { this.raiseRecoverable(start, \"Cannot use 'await' as identifier inside an async function\"); }\n if (this.currentThisScope().inClassFieldInit && name === \"arguments\")\n { this.raiseRecoverable(start, \"Cannot use 'arguments' in class field initializer\"); }\n if (this.inClassStaticBlock && (name === \"arguments\" || name === \"await\"))\n { this.raise(start, (\"Cannot use \" + name + \" in class static initialization block\")); }\n if (this.keywords.test(name))\n { this.raise(start, (\"Unexpected keyword '\" + name + \"'\")); }\n if (this.options.ecmaVersion < 6 &&\n this.input.slice(start, end).indexOf(\"\\\\\") !== -1) { return }\n var re = this.strict ? this.reservedWordsStrict : this.reservedWords;\n if (re.test(name)) {\n if (!this.inAsync && name === \"await\")\n { this.raiseRecoverable(start, \"Cannot use keyword 'await' outside an async function\"); }\n this.raiseRecoverable(start, (\"The keyword '\" + name + \"' is reserved\"));\n }\n };\n\n // Parse the next token as an identifier. If `liberal` is true (used\n // when parsing properties), it will also convert keywords into\n // identifiers.\n\n pp$5.parseIdent = function(liberal, isBinding) {\n var node = this.startNode();\n if (this.type === types$1.name) {\n node.name = this.value;\n } else if (this.type.keyword) {\n node.name = this.type.keyword;\n\n // To fix https://github.com/acornjs/acorn/issues/575\n // `class` and `function` keywords push new context into this.context.\n // But there is no chance to pop the context if the keyword is consumed as an identifier such as a property name.\n // If the previous token is a dot, this does not apply because the context-managing code already ignored the keyword\n if ((node.name === \"class\" || node.name === \"function\") &&\n (this.lastTokEnd !== this.lastTokStart + 1 || this.input.charCodeAt(this.lastTokStart) !== 46)) {\n this.context.pop();\n }\n } else {\n this.unexpected();\n }\n this.next(!!liberal);\n this.finishNode(node, \"Identifier\");\n if (!liberal) {\n this.checkUnreserved(node);\n if (node.name === \"await\" && !this.awaitIdentPos)\n { this.awaitIdentPos = node.start; }\n }\n return node\n };\n\n pp$5.parsePrivateIdent = function() {\n var node = this.startNode();\n if (this.type === types$1.privateId) {\n node.name = this.value;\n } else {\n this.unexpected();\n }\n this.next();\n this.finishNode(node, \"PrivateIdentifier\");\n\n // For validating existence\n if (this.privateNameStack.length === 0) {\n this.raise(node.start, (\"Private field '#\" + (node.name) + \"' must be declared in an enclosing class\"));\n } else {\n this.privateNameStack[this.privateNameStack.length - 1].used.push(node);\n }\n\n return node\n };\n\n // Parses yield expression inside generator.\n\n pp$5.parseYield = function(forInit) {\n if (!this.yieldPos) { this.yieldPos = this.start; }\n\n var node = this.startNode();\n this.next();\n if (this.type === types$1.semi || this.canInsertSemicolon() || (this.type !== types$1.star && !this.type.startsExpr)) {\n node.delegate = false;\n node.argument = null;\n } else {\n node.delegate = this.eat(types$1.star);\n node.argument = this.parseMaybeAssign(forInit);\n }\n return this.finishNode(node, \"YieldExpression\")\n };\n\n pp$5.parseAwait = function(forInit) {\n if (!this.awaitPos) { this.awaitPos = this.start; }\n\n var node = this.startNode();\n this.next();\n node.argument = this.parseMaybeUnary(null, true, false, forInit);\n return this.finishNode(node, \"AwaitExpression\")\n };\n\n var pp$4 = Parser.prototype;\n\n // This function is used to raise exceptions on parse errors. It\n // takes an offset integer (into the current `input`) to indicate\n // the location of the error, attaches the position to the end\n // of the error message, and then raises a `SyntaxError` with that\n // message.\n\n pp$4.raise = function(pos, message) {\n var loc = getLineInfo(this.input, pos);\n message += \" (\" + loc.line + \":\" + loc.column + \")\";\n var err = new SyntaxError(message);\n err.pos = pos; err.loc = loc; err.raisedAt = this.pos;\n throw err\n };\n\n pp$4.raiseRecoverable = pp$4.raise;\n\n pp$4.curPosition = function() {\n if (this.options.locations) {\n return new Position(this.curLine, this.pos - this.lineStart)\n }\n };\n\n var pp$3 = Parser.prototype;\n\n var Scope = function Scope(flags) {\n this.flags = flags;\n // A list of var-declared names in the current lexical scope\n this.var = [];\n // A list of lexically-declared names in the current lexical scope\n this.lexical = [];\n // A list of lexically-declared FunctionDeclaration names in the current lexical scope\n this.functions = [];\n // A switch to disallow the identifier reference 'arguments'\n this.inClassFieldInit = false;\n };\n\n // The functions in this module keep track of declared variables in the current scope in order to detect duplicate variable names.\n\n pp$3.enterScope = function(flags) {\n this.scopeStack.push(new Scope(flags));\n };\n\n pp$3.exitScope = function() {\n this.scopeStack.pop();\n };\n\n // The spec says:\n // > At the top level of a function, or script, function declarations are\n // > treated like var declarations rather than like lexical declarations.\n pp$3.treatFunctionsAsVarInScope = function(scope) {\n return (scope.flags & SCOPE_FUNCTION) || !this.inModule && (scope.flags & SCOPE_TOP)\n };\n\n pp$3.declareName = function(name, bindingType, pos) {\n var redeclared = false;\n if (bindingType === BIND_LEXICAL) {\n var scope = this.currentScope();\n redeclared = scope.lexical.indexOf(name) > -1 || scope.functions.indexOf(name) > -1 || scope.var.indexOf(name) > -1;\n scope.lexical.push(name);\n if (this.inModule && (scope.flags & SCOPE_TOP))\n { delete this.undefinedExports[name]; }\n } else if (bindingType === BIND_SIMPLE_CATCH) {\n var scope$1 = this.currentScope();\n scope$1.lexical.push(name);\n } else if (bindingType === BIND_FUNCTION) {\n var scope$2 = this.currentScope();\n if (this.treatFunctionsAsVar)\n { redeclared = scope$2.lexical.indexOf(name) > -1; }\n else\n { redeclared = scope$2.lexical.indexOf(name) > -1 || scope$2.var.indexOf(name) > -1; }\n scope$2.functions.push(name);\n } else {\n for (var i = this.scopeStack.length - 1; i >= 0; --i) {\n var scope$3 = this.scopeStack[i];\n if (scope$3.lexical.indexOf(name) > -1 && !((scope$3.flags & SCOPE_SIMPLE_CATCH) && scope$3.lexical[0] === name) ||\n !this.treatFunctionsAsVarInScope(scope$3) && scope$3.functions.indexOf(name) > -1) {\n redeclared = true;\n break\n }\n scope$3.var.push(name);\n if (this.inModule && (scope$3.flags & SCOPE_TOP))\n { delete this.undefinedExports[name]; }\n if (scope$3.flags & SCOPE_VAR) { break }\n }\n }\n if (redeclared) { this.raiseRecoverable(pos, (\"Identifier '\" + name + \"' has already been declared\")); }\n };\n\n pp$3.checkLocalExport = function(id) {\n // scope.functions must be empty as Module code is always strict.\n if (this.scopeStack[0].lexical.indexOf(id.name) === -1 &&\n this.scopeStack[0].var.indexOf(id.name) === -1) {\n this.undefinedExports[id.name] = id;\n }\n };\n\n pp$3.currentScope = function() {\n return this.scopeStack[this.scopeStack.length - 1]\n };\n\n pp$3.currentVarScope = function() {\n for (var i = this.scopeStack.length - 1;; i--) {\n var scope = this.scopeStack[i];\n if (scope.flags & SCOPE_VAR) { return scope }\n }\n };\n\n // Could be useful for `this`, `new.target`, `super()`, `super.property`, and `super[property]`.\n pp$3.currentThisScope = function() {\n for (var i = this.scopeStack.length - 1;; i--) {\n var scope = this.scopeStack[i];\n if (scope.flags & SCOPE_VAR && !(scope.flags & SCOPE_ARROW)) { return scope }\n }\n };\n\n var Node = function Node(parser, pos, loc) {\n this.type = \"\";\n this.start = pos;\n this.end = 0;\n if (parser.options.locations)\n { this.loc = new SourceLocation(parser, loc); }\n if (parser.options.directSourceFile)\n { this.sourceFile = parser.options.directSourceFile; }\n if (parser.options.ranges)\n { this.range = [pos, 0]; }\n };\n\n // Start an AST node, attaching a start offset.\n\n var pp$2 = Parser.prototype;\n\n pp$2.startNode = function() {\n return new Node(this, this.start, this.startLoc)\n };\n\n pp$2.startNodeAt = function(pos, loc) {\n return new Node(this, pos, loc)\n };\n\n // Finish an AST node, adding `type` and `end` properties.\n\n function finishNodeAt(node, type, pos, loc) {\n node.type = type;\n node.end = pos;\n if (this.options.locations)\n { node.loc.end = loc; }\n if (this.options.ranges)\n { node.range[1] = pos; }\n return node\n }\n\n pp$2.finishNode = function(node, type) {\n return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc)\n };\n\n // Finish node at given position\n\n pp$2.finishNodeAt = function(node, type, pos, loc) {\n return finishNodeAt.call(this, node, type, pos, loc)\n };\n\n pp$2.copyNode = function(node) {\n var newNode = new Node(this, node.start, this.startLoc);\n for (var prop in node) { newNode[prop] = node[prop]; }\n return newNode\n };\n\n // This file contains Unicode properties extracted from the ECMAScript\n // specification. The lists are extracted like so:\n // $$('#table-binary-unicode-properties > figure > table > tbody > tr > td:nth-child(1) code').map(el => el.innerText)\n\n // #table-binary-unicode-properties\n var ecma9BinaryProperties = \"ASCII ASCII_Hex_Digit AHex Alphabetic Alpha Any Assigned Bidi_Control Bidi_C Bidi_Mirrored Bidi_M Case_Ignorable CI Cased Changes_When_Casefolded CWCF Changes_When_Casemapped CWCM Changes_When_Lowercased CWL Changes_When_NFKC_Casefolded CWKCF Changes_When_Titlecased CWT Changes_When_Uppercased CWU Dash Default_Ignorable_Code_Point DI Deprecated Dep Diacritic Dia Emoji Emoji_Component Emoji_Modifier Emoji_Modifier_Base Emoji_Presentation Extender Ext Grapheme_Base Gr_Base Grapheme_Extend Gr_Ext Hex_Digit Hex IDS_Binary_Operator IDSB IDS_Trinary_Operator IDST ID_Continue IDC ID_Start IDS Ideographic Ideo Join_Control Join_C Logical_Order_Exception LOE Lowercase Lower Math Noncharacter_Code_Point NChar Pattern_Syntax Pat_Syn Pattern_White_Space Pat_WS Quotation_Mark QMark Radical Regional_Indicator RI Sentence_Terminal STerm Soft_Dotted SD Terminal_Punctuation Term Unified_Ideograph UIdeo Uppercase Upper Variation_Selector VS White_Space space XID_Continue XIDC XID_Start XIDS\";\n var ecma10BinaryProperties = ecma9BinaryProperties + \" Extended_Pictographic\";\n var ecma11BinaryProperties = ecma10BinaryProperties;\n var ecma12BinaryProperties = ecma11BinaryProperties + \" EBase EComp EMod EPres ExtPict\";\n var ecma13BinaryProperties = ecma12BinaryProperties;\n var unicodeBinaryProperties = {\n 9: ecma9BinaryProperties,\n 10: ecma10BinaryProperties,\n 11: ecma11BinaryProperties,\n 12: ecma12BinaryProperties,\n 13: ecma13BinaryProperties\n };\n\n // #table-unicode-general-category-values\n var unicodeGeneralCategoryValues = \"Cased_Letter LC Close_Punctuation Pe Connector_Punctuation Pc Control Cc cntrl Currency_Symbol Sc Dash_Punctuation Pd Decimal_Number Nd digit Enclosing_Mark Me Final_Punctuation Pf Format Cf Initial_Punctuation Pi Letter L Letter_Number Nl Line_Separator Zl Lowercase_Letter Ll Mark M Combining_Mark Math_Symbol Sm Modifier_Letter Lm Modifier_Symbol Sk Nonspacing_Mark Mn Number N Open_Punctuation Ps Other C Other_Letter Lo Other_Number No Other_Punctuation Po Other_Symbol So Paragraph_Separator Zp Private_Use Co Punctuation P punct Separator Z Space_Separator Zs Spacing_Mark Mc Surrogate Cs Symbol S Titlecase_Letter Lt Unassigned Cn Uppercase_Letter Lu\";\n\n // #table-unicode-script-values\n var ecma9ScriptValues = \"Adlam Adlm Ahom Anatolian_Hieroglyphs Hluw Arabic Arab Armenian Armn Avestan Avst Balinese Bali Bamum Bamu Bassa_Vah Bass Batak Batk Bengali Beng Bhaiksuki Bhks Bopomofo Bopo Brahmi Brah Braille Brai Buginese Bugi Buhid Buhd Canadian_Aboriginal Cans Carian Cari Caucasian_Albanian Aghb Chakma Cakm Cham Cham Cherokee Cher Common Zyyy Coptic Copt Qaac Cuneiform Xsux Cypriot Cprt Cyrillic Cyrl Deseret Dsrt Devanagari Deva Duployan Dupl Egyptian_Hieroglyphs Egyp Elbasan Elba Ethiopic Ethi Georgian Geor Glagolitic Glag Gothic Goth Grantha Gran Greek Grek Gujarati Gujr Gurmukhi Guru Han Hani Hangul Hang Hanunoo Hano Hatran Hatr Hebrew Hebr Hiragana Hira Imperial_Aramaic Armi Inherited Zinh Qaai Inscriptional_Pahlavi Phli Inscriptional_Parthian Prti Javanese Java Kaithi Kthi Kannada Knda Katakana Kana Kayah_Li Kali Kharoshthi Khar Khmer Khmr Khojki Khoj Khudawadi Sind Lao Laoo Latin Latn Lepcha Lepc Limbu Limb Linear_A Lina Linear_B Linb Lisu Lisu Lycian Lyci Lydian Lydi Mahajani Mahj Malayalam Mlym Mandaic Mand Manichaean Mani Marchen Marc Masaram_Gondi Gonm Meetei_Mayek Mtei Mende_Kikakui Mend Meroitic_Cursive Merc Meroitic_Hieroglyphs Mero Miao Plrd Modi Mongolian Mong Mro Mroo Multani Mult Myanmar Mymr Nabataean Nbat New_Tai_Lue Talu Newa Newa Nko Nkoo Nushu Nshu Ogham Ogam Ol_Chiki Olck Old_Hungarian Hung Old_Italic Ital Old_North_Arabian Narb Old_Permic Perm Old_Persian Xpeo Old_South_Arabian Sarb Old_Turkic Orkh Oriya Orya Osage Osge Osmanya Osma Pahawh_Hmong Hmng Palmyrene Palm Pau_Cin_Hau Pauc Phags_Pa Phag Phoenician Phnx Psalter_Pahlavi Phlp Rejang Rjng Runic Runr Samaritan Samr Saurashtra Saur Sharada Shrd Shavian Shaw Siddham Sidd SignWriting Sgnw Sinhala Sinh Sora_Sompeng Sora Soyombo Soyo Sundanese Sund Syloti_Nagri Sylo Syriac Syrc Tagalog Tglg Tagbanwa Tagb Tai_Le Tale Tai_Tham Lana Tai_Viet Tavt Takri Takr Tamil Taml Tangut Tang Telugu Telu Thaana Thaa Thai Thai Tibetan Tibt Tifinagh Tfng Tirhuta Tirh Ugaritic Ugar Vai Vaii Warang_Citi Wara Yi Yiii Zanabazar_Square Zanb\";\n var ecma10ScriptValues = ecma9ScriptValues + \" Dogra Dogr Gunjala_Gondi Gong Hanifi_Rohingya Rohg Makasar Maka Medefaidrin Medf Old_Sogdian Sogo Sogdian Sogd\";\n var ecma11ScriptValues = ecma10ScriptValues + \" Elymaic Elym Nandinagari Nand Nyiakeng_Puachue_Hmong Hmnp Wancho Wcho\";\n var ecma12ScriptValues = ecma11ScriptValues + \" Chorasmian Chrs Diak Dives_Akuru Khitan_Small_Script Kits Yezi Yezidi\";\n var ecma13ScriptValues = ecma12ScriptValues + \" Cypro_Minoan Cpmn Old_Uyghur Ougr Tangsa Tnsa Toto Vithkuqi Vith\";\n var unicodeScriptValues = {\n 9: ecma9ScriptValues,\n 10: ecma10ScriptValues,\n 11: ecma11ScriptValues,\n 12: ecma12ScriptValues,\n 13: ecma13ScriptValues\n };\n\n var data = {};\n function buildUnicodeData(ecmaVersion) {\n var d = data[ecmaVersion] = {\n binary: wordsRegexp(unicodeBinaryProperties[ecmaVersion] + \" \" + unicodeGeneralCategoryValues),\n nonBinary: {\n General_Category: wordsRegexp(unicodeGeneralCategoryValues),\n Script: wordsRegexp(unicodeScriptValues[ecmaVersion])\n }\n };\n d.nonBinary.Script_Extensions = d.nonBinary.Script;\n\n d.nonBinary.gc = d.nonBinary.General_Category;\n d.nonBinary.sc = d.nonBinary.Script;\n d.nonBinary.scx = d.nonBinary.Script_Extensions;\n }\n\n for (var i = 0, list = [9, 10, 11, 12, 13]; i < list.length; i += 1) {\n var ecmaVersion = list[i];\n\n buildUnicodeData(ecmaVersion);\n }\n\n var pp$1 = Parser.prototype;\n\n var RegExpValidationState = function RegExpValidationState(parser) {\n this.parser = parser;\n this.validFlags = \"gim\" + (parser.options.ecmaVersion >= 6 ? \"uy\" : \"\") + (parser.options.ecmaVersion >= 9 ? \"s\" : \"\") + (parser.options.ecmaVersion >= 13 ? \"d\" : \"\");\n this.unicodeProperties = data[parser.options.ecmaVersion >= 13 ? 13 : parser.options.ecmaVersion];\n this.source = \"\";\n this.flags = \"\";\n this.start = 0;\n this.switchU = false;\n this.switchN = false;\n this.pos = 0;\n this.lastIntValue = 0;\n this.lastStringValue = \"\";\n this.lastAssertionIsQuantifiable = false;\n this.numCapturingParens = 0;\n this.maxBackReference = 0;\n this.groupNames = [];\n this.backReferenceNames = [];\n };\n\n RegExpValidationState.prototype.reset = function reset (start, pattern, flags) {\n var unicode = flags.indexOf(\"u\") !== -1;\n this.start = start | 0;\n this.source = pattern + \"\";\n this.flags = flags;\n this.switchU = unicode && this.parser.options.ecmaVersion >= 6;\n this.switchN = unicode && this.parser.options.ecmaVersion >= 9;\n };\n\n RegExpValidationState.prototype.raise = function raise (message) {\n this.parser.raiseRecoverable(this.start, (\"Invalid regular expression: /\" + (this.source) + \"/: \" + message));\n };\n\n // If u flag is given, this returns the code point at the index (it combines a surrogate pair).\n // Otherwise, this returns the code unit of the index (can be a part of a surrogate pair).\n RegExpValidationState.prototype.at = function at (i, forceU) {\n if ( forceU === void 0 ) forceU = false;\n\n var s = this.source;\n var l = s.length;\n if (i >= l) {\n return -1\n }\n var c = s.charCodeAt(i);\n if (!(forceU || this.switchU) || c <= 0xD7FF || c >= 0xE000 || i + 1 >= l) {\n return c\n }\n var next = s.charCodeAt(i + 1);\n return next >= 0xDC00 && next <= 0xDFFF ? (c << 10) + next - 0x35FDC00 : c\n };\n\n RegExpValidationState.prototype.nextIndex = function nextIndex (i, forceU) {\n if ( forceU === void 0 ) forceU = false;\n\n var s = this.source;\n var l = s.length;\n if (i >= l) {\n return l\n }\n var c = s.charCodeAt(i), next;\n if (!(forceU || this.switchU) || c <= 0xD7FF || c >= 0xE000 || i + 1 >= l ||\n (next = s.charCodeAt(i + 1)) < 0xDC00 || next > 0xDFFF) {\n return i + 1\n }\n return i + 2\n };\n\n RegExpValidationState.prototype.current = function current (forceU) {\n if ( forceU === void 0 ) forceU = false;\n\n return this.at(this.pos, forceU)\n };\n\n RegExpValidationState.prototype.lookahead = function lookahead (forceU) {\n if ( forceU === void 0 ) forceU = false;\n\n return this.at(this.nextIndex(this.pos, forceU), forceU)\n };\n\n RegExpValidationState.prototype.advance = function advance (forceU) {\n if ( forceU === void 0 ) forceU = false;\n\n this.pos = this.nextIndex(this.pos, forceU);\n };\n\n RegExpValidationState.prototype.eat = function eat (ch, forceU) {\n if ( forceU === void 0 ) forceU = false;\n\n if (this.current(forceU) === ch) {\n this.advance(forceU);\n return true\n }\n return false\n };\n\n /**\n * Validate the flags part of a given RegExpLiteral.\n *\n * @param {RegExpValidationState} state The state to validate RegExp.\n * @returns {void}\n */\n pp$1.validateRegExpFlags = function(state) {\n var validFlags = state.validFlags;\n var flags = state.flags;\n\n for (var i = 0; i < flags.length; i++) {\n var flag = flags.charAt(i);\n if (validFlags.indexOf(flag) === -1) {\n this.raise(state.start, \"Invalid regular expression flag\");\n }\n if (flags.indexOf(flag, i + 1) > -1) {\n this.raise(state.start, \"Duplicate regular expression flag\");\n }\n }\n };\n\n /**\n * Validate the pattern part of a given RegExpLiteral.\n *\n * @param {RegExpValidationState} state The state to validate RegExp.\n * @returns {void}\n */\n pp$1.validateRegExpPattern = function(state) {\n this.regexp_pattern(state);\n\n // The goal symbol for the parse is |Pattern[~U, ~N]|. If the result of\n // parsing contains a |GroupName|, reparse with the goal symbol\n // |Pattern[~U, +N]| and use this result instead. Throw a *SyntaxError*\n // exception if _P_ did not conform to the grammar, if any elements of _P_\n // were not matched by the parse, or if any Early Error conditions exist.\n if (!state.switchN && this.options.ecmaVersion >= 9 && state.groupNames.length > 0) {\n state.switchN = true;\n this.regexp_pattern(state);\n }\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-Pattern\n pp$1.regexp_pattern = function(state) {\n state.pos = 0;\n state.lastIntValue = 0;\n state.lastStringValue = \"\";\n state.lastAssertionIsQuantifiable = false;\n state.numCapturingParens = 0;\n state.maxBackReference = 0;\n state.groupNames.length = 0;\n state.backReferenceNames.length = 0;\n\n this.regexp_disjunction(state);\n\n if (state.pos !== state.source.length) {\n // Make the same messages as V8.\n if (state.eat(0x29 /* ) */)) {\n state.raise(\"Unmatched ')'\");\n }\n if (state.eat(0x5D /* ] */) || state.eat(0x7D /* } */)) {\n state.raise(\"Lone quantifier brackets\");\n }\n }\n if (state.maxBackReference > state.numCapturingParens) {\n state.raise(\"Invalid escape\");\n }\n for (var i = 0, list = state.backReferenceNames; i < list.length; i += 1) {\n var name = list[i];\n\n if (state.groupNames.indexOf(name) === -1) {\n state.raise(\"Invalid named capture referenced\");\n }\n }\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-Disjunction\n pp$1.regexp_disjunction = function(state) {\n this.regexp_alternative(state);\n while (state.eat(0x7C /* | */)) {\n this.regexp_alternative(state);\n }\n\n // Make the same message as V8.\n if (this.regexp_eatQuantifier(state, true)) {\n state.raise(\"Nothing to repeat\");\n }\n if (state.eat(0x7B /* { */)) {\n state.raise(\"Lone quantifier brackets\");\n }\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-Alternative\n pp$1.regexp_alternative = function(state) {\n while (state.pos < state.source.length && this.regexp_eatTerm(state))\n { }\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Term\n pp$1.regexp_eatTerm = function(state) {\n if (this.regexp_eatAssertion(state)) {\n // Handle `QuantifiableAssertion Quantifier` alternative.\n // `state.lastAssertionIsQuantifiable` is true if the last eaten Assertion\n // is a QuantifiableAssertion.\n if (state.lastAssertionIsQuantifiable && this.regexp_eatQuantifier(state)) {\n // Make the same message as V8.\n if (state.switchU) {\n state.raise(\"Invalid quantifier\");\n }\n }\n return true\n }\n\n if (state.switchU ? this.regexp_eatAtom(state) : this.regexp_eatExtendedAtom(state)) {\n this.regexp_eatQuantifier(state);\n return true\n }\n\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Assertion\n pp$1.regexp_eatAssertion = function(state) {\n var start = state.pos;\n state.lastAssertionIsQuantifiable = false;\n\n // ^, $\n if (state.eat(0x5E /* ^ */) || state.eat(0x24 /* $ */)) {\n return true\n }\n\n // \\b \\B\n if (state.eat(0x5C /* \\ */)) {\n if (state.eat(0x42 /* B */) || state.eat(0x62 /* b */)) {\n return true\n }\n state.pos = start;\n }\n\n // Lookahead / Lookbehind\n if (state.eat(0x28 /* ( */) && state.eat(0x3F /* ? */)) {\n var lookbehind = false;\n if (this.options.ecmaVersion >= 9) {\n lookbehind = state.eat(0x3C /* < */);\n }\n if (state.eat(0x3D /* = */) || state.eat(0x21 /* ! */)) {\n this.regexp_disjunction(state);\n if (!state.eat(0x29 /* ) */)) {\n state.raise(\"Unterminated group\");\n }\n state.lastAssertionIsQuantifiable = !lookbehind;\n return true\n }\n }\n\n state.pos = start;\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-Quantifier\n pp$1.regexp_eatQuantifier = function(state, noError) {\n if ( noError === void 0 ) noError = false;\n\n if (this.regexp_eatQuantifierPrefix(state, noError)) {\n state.eat(0x3F /* ? */);\n return true\n }\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-QuantifierPrefix\n pp$1.regexp_eatQuantifierPrefix = function(state, noError) {\n return (\n state.eat(0x2A /* * */) ||\n state.eat(0x2B /* + */) ||\n state.eat(0x3F /* ? */) ||\n this.regexp_eatBracedQuantifier(state, noError)\n )\n };\n pp$1.regexp_eatBracedQuantifier = function(state, noError) {\n var start = state.pos;\n if (state.eat(0x7B /* { */)) {\n var min = 0, max = -1;\n if (this.regexp_eatDecimalDigits(state)) {\n min = state.lastIntValue;\n if (state.eat(0x2C /* , */) && this.regexp_eatDecimalDigits(state)) {\n max = state.lastIntValue;\n }\n if (state.eat(0x7D /* } */)) {\n // SyntaxError in https://www.ecma-international.org/ecma-262/8.0/#sec-term\n if (max !== -1 && max < min && !noError) {\n state.raise(\"numbers out of order in {} quantifier\");\n }\n return true\n }\n }\n if (state.switchU && !noError) {\n state.raise(\"Incomplete quantifier\");\n }\n state.pos = start;\n }\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-Atom\n pp$1.regexp_eatAtom = function(state) {\n return (\n this.regexp_eatPatternCharacters(state) ||\n state.eat(0x2E /* . */) ||\n this.regexp_eatReverseSolidusAtomEscape(state) ||\n this.regexp_eatCharacterClass(state) ||\n this.regexp_eatUncapturingGroup(state) ||\n this.regexp_eatCapturingGroup(state)\n )\n };\n pp$1.regexp_eatReverseSolidusAtomEscape = function(state) {\n var start = state.pos;\n if (state.eat(0x5C /* \\ */)) {\n if (this.regexp_eatAtomEscape(state)) {\n return true\n }\n state.pos = start;\n }\n return false\n };\n pp$1.regexp_eatUncapturingGroup = function(state) {\n var start = state.pos;\n if (state.eat(0x28 /* ( */)) {\n if (state.eat(0x3F /* ? */) && state.eat(0x3A /* : */)) {\n this.regexp_disjunction(state);\n if (state.eat(0x29 /* ) */)) {\n return true\n }\n state.raise(\"Unterminated group\");\n }\n state.pos = start;\n }\n return false\n };\n pp$1.regexp_eatCapturingGroup = function(state) {\n if (state.eat(0x28 /* ( */)) {\n if (this.options.ecmaVersion >= 9) {\n this.regexp_groupSpecifier(state);\n } else if (state.current() === 0x3F /* ? */) {\n state.raise(\"Invalid group\");\n }\n this.regexp_disjunction(state);\n if (state.eat(0x29 /* ) */)) {\n state.numCapturingParens += 1;\n return true\n }\n state.raise(\"Unterminated group\");\n }\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ExtendedAtom\n pp$1.regexp_eatExtendedAtom = function(state) {\n return (\n state.eat(0x2E /* . */) ||\n this.regexp_eatReverseSolidusAtomEscape(state) ||\n this.regexp_eatCharacterClass(state) ||\n this.regexp_eatUncapturingGroup(state) ||\n this.regexp_eatCapturingGroup(state) ||\n this.regexp_eatInvalidBracedQuantifier(state) ||\n this.regexp_eatExtendedPatternCharacter(state)\n )\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-InvalidBracedQuantifier\n pp$1.regexp_eatInvalidBracedQuantifier = function(state) {\n if (this.regexp_eatBracedQuantifier(state, true)) {\n state.raise(\"Nothing to repeat\");\n }\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-SyntaxCharacter\n pp$1.regexp_eatSyntaxCharacter = function(state) {\n var ch = state.current();\n if (isSyntaxCharacter(ch)) {\n state.lastIntValue = ch;\n state.advance();\n return true\n }\n return false\n };\n function isSyntaxCharacter(ch) {\n return (\n ch === 0x24 /* $ */ ||\n ch >= 0x28 /* ( */ && ch <= 0x2B /* + */ ||\n ch === 0x2E /* . */ ||\n ch === 0x3F /* ? */ ||\n ch >= 0x5B /* [ */ && ch <= 0x5E /* ^ */ ||\n ch >= 0x7B /* { */ && ch <= 0x7D /* } */\n )\n }\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-PatternCharacter\n // But eat eager.\n pp$1.regexp_eatPatternCharacters = function(state) {\n var start = state.pos;\n var ch = 0;\n while ((ch = state.current()) !== -1 && !isSyntaxCharacter(ch)) {\n state.advance();\n }\n return state.pos !== start\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ExtendedPatternCharacter\n pp$1.regexp_eatExtendedPatternCharacter = function(state) {\n var ch = state.current();\n if (\n ch !== -1 &&\n ch !== 0x24 /* $ */ &&\n !(ch >= 0x28 /* ( */ && ch <= 0x2B /* + */) &&\n ch !== 0x2E /* . */ &&\n ch !== 0x3F /* ? */ &&\n ch !== 0x5B /* [ */ &&\n ch !== 0x5E /* ^ */ &&\n ch !== 0x7C /* | */\n ) {\n state.advance();\n return true\n }\n return false\n };\n\n // GroupSpecifier ::\n // [empty]\n // `?` GroupName\n pp$1.regexp_groupSpecifier = function(state) {\n if (state.eat(0x3F /* ? */)) {\n if (this.regexp_eatGroupName(state)) {\n if (state.groupNames.indexOf(state.lastStringValue) !== -1) {\n state.raise(\"Duplicate capture group name\");\n }\n state.groupNames.push(state.lastStringValue);\n return\n }\n state.raise(\"Invalid group\");\n }\n };\n\n // GroupName ::\n // `<` RegExpIdentifierName `>`\n // Note: this updates `state.lastStringValue` property with the eaten name.\n pp$1.regexp_eatGroupName = function(state) {\n state.lastStringValue = \"\";\n if (state.eat(0x3C /* < */)) {\n if (this.regexp_eatRegExpIdentifierName(state) && state.eat(0x3E /* > */)) {\n return true\n }\n state.raise(\"Invalid capture group name\");\n }\n return false\n };\n\n // RegExpIdentifierName ::\n // RegExpIdentifierStart\n // RegExpIdentifierName RegExpIdentifierPart\n // Note: this updates `state.lastStringValue` property with the eaten name.\n pp$1.regexp_eatRegExpIdentifierName = function(state) {\n state.lastStringValue = \"\";\n if (this.regexp_eatRegExpIdentifierStart(state)) {\n state.lastStringValue += codePointToString(state.lastIntValue);\n while (this.regexp_eatRegExpIdentifierPart(state)) {\n state.lastStringValue += codePointToString(state.lastIntValue);\n }\n return true\n }\n return false\n };\n\n // RegExpIdentifierStart ::\n // UnicodeIDStart\n // `$`\n // `_`\n // `\\` RegExpUnicodeEscapeSequence[+U]\n pp$1.regexp_eatRegExpIdentifierStart = function(state) {\n var start = state.pos;\n var forceU = this.options.ecmaVersion >= 11;\n var ch = state.current(forceU);\n state.advance(forceU);\n\n if (ch === 0x5C /* \\ */ && this.regexp_eatRegExpUnicodeEscapeSequence(state, forceU)) {\n ch = state.lastIntValue;\n }\n if (isRegExpIdentifierStart(ch)) {\n state.lastIntValue = ch;\n return true\n }\n\n state.pos = start;\n return false\n };\n function isRegExpIdentifierStart(ch) {\n return isIdentifierStart(ch, true) || ch === 0x24 /* $ */ || ch === 0x5F /* _ */\n }\n\n // RegExpIdentifierPart ::\n // UnicodeIDContinue\n // `$`\n // `_`\n // `\\` RegExpUnicodeEscapeSequence[+U]\n // <ZWNJ>\n // <ZWJ>\n pp$1.regexp_eatRegExpIdentifierPart = function(state) {\n var start = state.pos;\n var forceU = this.options.ecmaVersion >= 11;\n var ch = state.current(forceU);\n state.advance(forceU);\n\n if (ch === 0x5C /* \\ */ && this.regexp_eatRegExpUnicodeEscapeSequence(state, forceU)) {\n ch = state.lastIntValue;\n }\n if (isRegExpIdentifierPart(ch)) {\n state.lastIntValue = ch;\n return true\n }\n\n state.pos = start;\n return false\n };\n function isRegExpIdentifierPart(ch) {\n return isIdentifierChar(ch, true) || ch === 0x24 /* $ */ || ch === 0x5F /* _ */ || ch === 0x200C /* <ZWNJ> */ || ch === 0x200D /* <ZWJ> */\n }\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-AtomEscape\n pp$1.regexp_eatAtomEscape = function(state) {\n if (\n this.regexp_eatBackReference(state) ||\n this.regexp_eatCharacterClassEscape(state) ||\n this.regexp_eatCharacterEscape(state) ||\n (state.switchN && this.regexp_eatKGroupName(state))\n ) {\n return true\n }\n if (state.switchU) {\n // Make the same message as V8.\n if (state.current() === 0x63 /* c */) {\n state.raise(\"Invalid unicode escape\");\n }\n state.raise(\"Invalid escape\");\n }\n return false\n };\n pp$1.regexp_eatBackReference = function(state) {\n var start = state.pos;\n if (this.regexp_eatDecimalEscape(state)) {\n var n = state.lastIntValue;\n if (state.switchU) {\n // For SyntaxError in https://www.ecma-international.org/ecma-262/8.0/#sec-atomescape\n if (n > state.maxBackReference) {\n state.maxBackReference = n;\n }\n return true\n }\n if (n <= state.numCapturingParens) {\n return true\n }\n state.pos = start;\n }\n return false\n };\n pp$1.regexp_eatKGroupName = function(state) {\n if (state.eat(0x6B /* k */)) {\n if (this.regexp_eatGroupName(state)) {\n state.backReferenceNames.push(state.lastStringValue);\n return true\n }\n state.raise(\"Invalid named reference\");\n }\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-CharacterEscape\n pp$1.regexp_eatCharacterEscape = function(state) {\n return (\n this.regexp_eatControlEscape(state) ||\n this.regexp_eatCControlLetter(state) ||\n this.regexp_eatZero(state) ||\n this.regexp_eatHexEscapeSequence(state) ||\n this.regexp_eatRegExpUnicodeEscapeSequence(state, false) ||\n (!state.switchU && this.regexp_eatLegacyOctalEscapeSequence(state)) ||\n this.regexp_eatIdentityEscape(state)\n )\n };\n pp$1.regexp_eatCControlLetter = function(state) {\n var start = state.pos;\n if (state.eat(0x63 /* c */)) {\n if (this.regexp_eatControlLetter(state)) {\n return true\n }\n state.pos = start;\n }\n return false\n };\n pp$1.regexp_eatZero = function(state) {\n if (state.current() === 0x30 /* 0 */ && !isDecimalDigit(state.lookahead())) {\n state.lastIntValue = 0;\n state.advance();\n return true\n }\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-ControlEscape\n pp$1.regexp_eatControlEscape = function(state) {\n var ch = state.current();\n if (ch === 0x74 /* t */) {\n state.lastIntValue = 0x09; /* \\t */\n state.advance();\n return true\n }\n if (ch === 0x6E /* n */) {\n state.lastIntValue = 0x0A; /* \\n */\n state.advance();\n return true\n }\n if (ch === 0x76 /* v */) {\n state.lastIntValue = 0x0B; /* \\v */\n state.advance();\n return true\n }\n if (ch === 0x66 /* f */) {\n state.lastIntValue = 0x0C; /* \\f */\n state.advance();\n return true\n }\n if (ch === 0x72 /* r */) {\n state.lastIntValue = 0x0D; /* \\r */\n state.advance();\n return true\n }\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-ControlLetter\n pp$1.regexp_eatControlLetter = function(state) {\n var ch = state.current();\n if (isControlLetter(ch)) {\n state.lastIntValue = ch % 0x20;\n state.advance();\n return true\n }\n return false\n };\n function isControlLetter(ch) {\n return (\n (ch >= 0x41 /* A */ && ch <= 0x5A /* Z */) ||\n (ch >= 0x61 /* a */ && ch <= 0x7A /* z */)\n )\n }\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-RegExpUnicodeEscapeSequence\n pp$1.regexp_eatRegExpUnicodeEscapeSequence = function(state, forceU) {\n if ( forceU === void 0 ) forceU = false;\n\n var start = state.pos;\n var switchU = forceU || state.switchU;\n\n if (state.eat(0x75 /* u */)) {\n if (this.regexp_eatFixedHexDigits(state, 4)) {\n var lead = state.lastIntValue;\n if (switchU && lead >= 0xD800 && lead <= 0xDBFF) {\n var leadSurrogateEnd = state.pos;\n if (state.eat(0x5C /* \\ */) && state.eat(0x75 /* u */) && this.regexp_eatFixedHexDigits(state, 4)) {\n var trail = state.lastIntValue;\n if (trail >= 0xDC00 && trail <= 0xDFFF) {\n state.lastIntValue = (lead - 0xD800) * 0x400 + (trail - 0xDC00) + 0x10000;\n return true\n }\n }\n state.pos = leadSurrogateEnd;\n state.lastIntValue = lead;\n }\n return true\n }\n if (\n switchU &&\n state.eat(0x7B /* { */) &&\n this.regexp_eatHexDigits(state) &&\n state.eat(0x7D /* } */) &&\n isValidUnicode(state.lastIntValue)\n ) {\n return true\n }\n if (switchU) {\n state.raise(\"Invalid unicode escape\");\n }\n state.pos = start;\n }\n\n return false\n };\n function isValidUnicode(ch) {\n return ch >= 0 && ch <= 0x10FFFF\n }\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-IdentityEscape\n pp$1.regexp_eatIdentityEscape = function(state) {\n if (state.switchU) {\n if (this.regexp_eatSyntaxCharacter(state)) {\n return true\n }\n if (state.eat(0x2F /* / */)) {\n state.lastIntValue = 0x2F; /* / */\n return true\n }\n return false\n }\n\n var ch = state.current();\n if (ch !== 0x63 /* c */ && (!state.switchN || ch !== 0x6B /* k */)) {\n state.lastIntValue = ch;\n state.advance();\n return true\n }\n\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-DecimalEscape\n pp$1.regexp_eatDecimalEscape = function(state) {\n state.lastIntValue = 0;\n var ch = state.current();\n if (ch >= 0x31 /* 1 */ && ch <= 0x39 /* 9 */) {\n do {\n state.lastIntValue = 10 * state.lastIntValue + (ch - 0x30 /* 0 */);\n state.advance();\n } while ((ch = state.current()) >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */)\n return true\n }\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClassEscape\n pp$1.regexp_eatCharacterClassEscape = function(state) {\n var ch = state.current();\n\n if (isCharacterClassEscape(ch)) {\n state.lastIntValue = -1;\n state.advance();\n return true\n }\n\n if (\n state.switchU &&\n this.options.ecmaVersion >= 9 &&\n (ch === 0x50 /* P */ || ch === 0x70 /* p */)\n ) {\n state.lastIntValue = -1;\n state.advance();\n if (\n state.eat(0x7B /* { */) &&\n this.regexp_eatUnicodePropertyValueExpression(state) &&\n state.eat(0x7D /* } */)\n ) {\n return true\n }\n state.raise(\"Invalid property name\");\n }\n\n return false\n };\n function isCharacterClassEscape(ch) {\n return (\n ch === 0x64 /* d */ ||\n ch === 0x44 /* D */ ||\n ch === 0x73 /* s */ ||\n ch === 0x53 /* S */ ||\n ch === 0x77 /* w */ ||\n ch === 0x57 /* W */\n )\n }\n\n // UnicodePropertyValueExpression ::\n // UnicodePropertyName `=` UnicodePropertyValue\n // LoneUnicodePropertyNameOrValue\n pp$1.regexp_eatUnicodePropertyValueExpression = function(state) {\n var start = state.pos;\n\n // UnicodePropertyName `=` UnicodePropertyValue\n if (this.regexp_eatUnicodePropertyName(state) && state.eat(0x3D /* = */)) {\n var name = state.lastStringValue;\n if (this.regexp_eatUnicodePropertyValue(state)) {\n var value = state.lastStringValue;\n this.regexp_validateUnicodePropertyNameAndValue(state, name, value);\n return true\n }\n }\n state.pos = start;\n\n // LoneUnicodePropertyNameOrValue\n if (this.regexp_eatLoneUnicodePropertyNameOrValue(state)) {\n var nameOrValue = state.lastStringValue;\n this.regexp_validateUnicodePropertyNameOrValue(state, nameOrValue);\n return true\n }\n return false\n };\n pp$1.regexp_validateUnicodePropertyNameAndValue = function(state, name, value) {\n if (!hasOwn(state.unicodeProperties.nonBinary, name))\n { state.raise(\"Invalid property name\"); }\n if (!state.unicodeProperties.nonBinary[name].test(value))\n { state.raise(\"Invalid property value\"); }\n };\n pp$1.regexp_validateUnicodePropertyNameOrValue = function(state, nameOrValue) {\n if (!state.unicodeProperties.binary.test(nameOrValue))\n { state.raise(\"Invalid property name\"); }\n };\n\n // UnicodePropertyName ::\n // UnicodePropertyNameCharacters\n pp$1.regexp_eatUnicodePropertyName = function(state) {\n var ch = 0;\n state.lastStringValue = \"\";\n while (isUnicodePropertyNameCharacter(ch = state.current())) {\n state.lastStringValue += codePointToString(ch);\n state.advance();\n }\n return state.lastStringValue !== \"\"\n };\n function isUnicodePropertyNameCharacter(ch) {\n return isControlLetter(ch) || ch === 0x5F /* _ */\n }\n\n // UnicodePropertyValue ::\n // UnicodePropertyValueCharacters\n pp$1.regexp_eatUnicodePropertyValue = function(state) {\n var ch = 0;\n state.lastStringValue = \"\";\n while (isUnicodePropertyValueCharacter(ch = state.current())) {\n state.lastStringValue += codePointToString(ch);\n state.advance();\n }\n return state.lastStringValue !== \"\"\n };\n function isUnicodePropertyValueCharacter(ch) {\n return isUnicodePropertyNameCharacter(ch) || isDecimalDigit(ch)\n }\n\n // LoneUnicodePropertyNameOrValue ::\n // UnicodePropertyValueCharacters\n pp$1.regexp_eatLoneUnicodePropertyNameOrValue = function(state) {\n return this.regexp_eatUnicodePropertyValue(state)\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClass\n pp$1.regexp_eatCharacterClass = function(state) {\n if (state.eat(0x5B /* [ */)) {\n state.eat(0x5E /* ^ */);\n this.regexp_classRanges(state);\n if (state.eat(0x5D /* ] */)) {\n return true\n }\n // Unreachable since it threw \"unterminated regular expression\" error before.\n state.raise(\"Unterminated character class\");\n }\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassRanges\n // https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRanges\n // https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRangesNoDash\n pp$1.regexp_classRanges = function(state) {\n while (this.regexp_eatClassAtom(state)) {\n var left = state.lastIntValue;\n if (state.eat(0x2D /* - */) && this.regexp_eatClassAtom(state)) {\n var right = state.lastIntValue;\n if (state.switchU && (left === -1 || right === -1)) {\n state.raise(\"Invalid character class\");\n }\n if (left !== -1 && right !== -1 && left > right) {\n state.raise(\"Range out of order in character class\");\n }\n }\n }\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtom\n // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtomNoDash\n pp$1.regexp_eatClassAtom = function(state) {\n var start = state.pos;\n\n if (state.eat(0x5C /* \\ */)) {\n if (this.regexp_eatClassEscape(state)) {\n return true\n }\n if (state.switchU) {\n // Make the same message as V8.\n var ch$1 = state.current();\n if (ch$1 === 0x63 /* c */ || isOctalDigit(ch$1)) {\n state.raise(\"Invalid class escape\");\n }\n state.raise(\"Invalid escape\");\n }\n state.pos = start;\n }\n\n var ch = state.current();\n if (ch !== 0x5D /* ] */) {\n state.lastIntValue = ch;\n state.advance();\n return true\n }\n\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ClassEscape\n pp$1.regexp_eatClassEscape = function(state) {\n var start = state.pos;\n\n if (state.eat(0x62 /* b */)) {\n state.lastIntValue = 0x08; /* <BS> */\n return true\n }\n\n if (state.switchU && state.eat(0x2D /* - */)) {\n state.lastIntValue = 0x2D; /* - */\n return true\n }\n\n if (!state.switchU && state.eat(0x63 /* c */)) {\n if (this.regexp_eatClassControlLetter(state)) {\n return true\n }\n state.pos = start;\n }\n\n return (\n this.regexp_eatCharacterClassEscape(state) ||\n this.regexp_eatCharacterEscape(state)\n )\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ClassControlLetter\n pp$1.regexp_eatClassControlLetter = function(state) {\n var ch = state.current();\n if (isDecimalDigit(ch) || ch === 0x5F /* _ */) {\n state.lastIntValue = ch % 0x20;\n state.advance();\n return true\n }\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-HexEscapeSequence\n pp$1.regexp_eatHexEscapeSequence = function(state) {\n var start = state.pos;\n if (state.eat(0x78 /* x */)) {\n if (this.regexp_eatFixedHexDigits(state, 2)) {\n return true\n }\n if (state.switchU) {\n state.raise(\"Invalid escape\");\n }\n state.pos = start;\n }\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-DecimalDigits\n pp$1.regexp_eatDecimalDigits = function(state) {\n var start = state.pos;\n var ch = 0;\n state.lastIntValue = 0;\n while (isDecimalDigit(ch = state.current())) {\n state.lastIntValue = 10 * state.lastIntValue + (ch - 0x30 /* 0 */);\n state.advance();\n }\n return state.pos !== start\n };\n function isDecimalDigit(ch) {\n return ch >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */\n }\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-HexDigits\n pp$1.regexp_eatHexDigits = function(state) {\n var start = state.pos;\n var ch = 0;\n state.lastIntValue = 0;\n while (isHexDigit(ch = state.current())) {\n state.lastIntValue = 16 * state.lastIntValue + hexToInt(ch);\n state.advance();\n }\n return state.pos !== start\n };\n function isHexDigit(ch) {\n return (\n (ch >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */) ||\n (ch >= 0x41 /* A */ && ch <= 0x46 /* F */) ||\n (ch >= 0x61 /* a */ && ch <= 0x66 /* f */)\n )\n }\n function hexToInt(ch) {\n if (ch >= 0x41 /* A */ && ch <= 0x46 /* F */) {\n return 10 + (ch - 0x41 /* A */)\n }\n if (ch >= 0x61 /* a */ && ch <= 0x66 /* f */) {\n return 10 + (ch - 0x61 /* a */)\n }\n return ch - 0x30 /* 0 */\n }\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-LegacyOctalEscapeSequence\n // Allows only 0-377(octal) i.e. 0-255(decimal).\n pp$1.regexp_eatLegacyOctalEscapeSequence = function(state) {\n if (this.regexp_eatOctalDigit(state)) {\n var n1 = state.lastIntValue;\n if (this.regexp_eatOctalDigit(state)) {\n var n2 = state.lastIntValue;\n if (n1 <= 3 && this.regexp_eatOctalDigit(state)) {\n state.lastIntValue = n1 * 64 + n2 * 8 + state.lastIntValue;\n } else {\n state.lastIntValue = n1 * 8 + n2;\n }\n } else {\n state.lastIntValue = n1;\n }\n return true\n }\n return false\n };\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-OctalDigit\n pp$1.regexp_eatOctalDigit = function(state) {\n var ch = state.current();\n if (isOctalDigit(ch)) {\n state.lastIntValue = ch - 0x30; /* 0 */\n state.advance();\n return true\n }\n state.lastIntValue = 0;\n return false\n };\n function isOctalDigit(ch) {\n return ch >= 0x30 /* 0 */ && ch <= 0x37 /* 7 */\n }\n\n // https://www.ecma-international.org/ecma-262/8.0/#prod-Hex4Digits\n // https://www.ecma-international.org/ecma-262/8.0/#prod-HexDigit\n // And HexDigit HexDigit in https://www.ecma-international.org/ecma-262/8.0/#prod-HexEscapeSequence\n pp$1.regexp_eatFixedHexDigits = function(state, length) {\n var start = state.pos;\n state.lastIntValue = 0;\n for (var i = 0; i < length; ++i) {\n var ch = state.current();\n if (!isHexDigit(ch)) {\n state.pos = start;\n return false\n }\n state.lastIntValue = 16 * state.lastIntValue + hexToInt(ch);\n state.advance();\n }\n return true\n };\n\n // Object type used to represent tokens. Note that normally, tokens\n // simply exist as properties on the parser object. This is only\n // used for the onToken callback and the external tokenizer.\n\n var Token = function Token(p) {\n this.type = p.type;\n this.value = p.value;\n this.start = p.start;\n this.end = p.end;\n if (p.options.locations)\n { this.loc = new SourceLocation(p, p.startLoc, p.endLoc); }\n if (p.options.ranges)\n { this.range = [p.start, p.end]; }\n };\n\n // ## Tokenizer\n\n var pp = Parser.prototype;\n\n // Move to the next token\n\n pp.next = function(ignoreEscapeSequenceInKeyword) {\n if (!ignoreEscapeSequenceInKeyword && this.type.keyword && this.containsEsc)\n { this.raiseRecoverable(this.start, \"Escape sequence in keyword \" + this.type.keyword); }\n if (this.options.onToken)\n { this.options.onToken(new Token(this)); }\n\n this.lastTokEnd = this.end;\n this.lastTokStart = this.start;\n this.lastTokEndLoc = this.endLoc;\n this.lastTokStartLoc = this.startLoc;\n this.nextToken();\n };\n\n pp.getToken = function() {\n this.next();\n return new Token(this)\n };\n\n // If we're in an ES6 environment, make parsers iterable\n if (typeof Symbol !== \"undefined\")\n { pp[Symbol.iterator] = function() {\n var this$1$1 = this;\n\n return {\n next: function () {\n var token = this$1$1.getToken();\n return {\n done: token.type === types$1.eof,\n value: token\n }\n }\n }\n }; }\n\n // Toggle strict mode. Re-reads the next number or string to please\n // pedantic tests (`\"use strict\"; 010;` should fail).\n\n // Read a single token, updating the parser object's token-related\n // properties.\n\n pp.nextToken = function() {\n var curContext = this.curContext();\n if (!curContext || !curContext.preserveSpace) { this.skipSpace(); }\n\n this.start = this.pos;\n if (this.options.locations) { this.startLoc = this.curPosition(); }\n if (this.pos >= this.input.length) { return this.finishToken(types$1.eof) }\n\n if (curContext.override) { return curContext.override(this) }\n else { this.readToken(this.fullCharCodeAtPos()); }\n };\n\n pp.readToken = function(code) {\n // Identifier or keyword. '\\uXXXX' sequences are allowed in\n // identifiers, so '\\' also dispatches to that.\n if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\\' */)\n { return this.readWord() }\n\n return this.getTokenFromCode(code)\n };\n\n pp.fullCharCodeAtPos = function() {\n var code = this.input.charCodeAt(this.pos);\n if (code <= 0xd7ff || code >= 0xdc00) { return code }\n var next = this.input.charCodeAt(this.pos + 1);\n return next <= 0xdbff || next >= 0xe000 ? code : (code << 10) + next - 0x35fdc00\n };\n\n pp.skipBlockComment = function() {\n var startLoc = this.options.onComment && this.curPosition();\n var start = this.pos, end = this.input.indexOf(\"*/\", this.pos += 2);\n if (end === -1) { this.raise(this.pos - 2, \"Unterminated comment\"); }\n this.pos = end + 2;\n if (this.options.locations) {\n for (var nextBreak = (void 0), pos = start; (nextBreak = nextLineBreak(this.input, pos, this.pos)) > -1;) {\n ++this.curLine;\n pos = this.lineStart = nextBreak;\n }\n }\n if (this.options.onComment)\n { this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos,\n startLoc, this.curPosition()); }\n };\n\n pp.skipLineComment = function(startSkip) {\n var start = this.pos;\n var startLoc = this.options.onComment && this.curPosition();\n var ch = this.input.charCodeAt(this.pos += startSkip);\n while (this.pos < this.input.length && !isNewLine(ch)) {\n ch = this.input.charCodeAt(++this.pos);\n }\n if (this.options.onComment)\n { this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos,\n startLoc, this.curPosition()); }\n };\n\n // Called at the start of the parse and after every token. Skips\n // whitespace and comments, and.\n\n pp.skipSpace = function() {\n loop: while (this.pos < this.input.length) {\n var ch = this.input.charCodeAt(this.pos);\n switch (ch) {\n case 32: case 160: // ' '\n ++this.pos;\n break\n case 13:\n if (this.input.charCodeAt(this.pos + 1) === 10) {\n ++this.pos;\n }\n case 10: case 8232: case 8233:\n ++this.pos;\n if (this.options.locations) {\n ++this.curLine;\n this.lineStart = this.pos;\n }\n break\n case 47: // '/'\n switch (this.input.charCodeAt(this.pos + 1)) {\n case 42: // '*'\n this.skipBlockComment();\n break\n case 47:\n this.skipLineComment(2);\n break\n default:\n break loop\n }\n break\n default:\n if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {\n ++this.pos;\n } else {\n break loop\n }\n }\n }\n };\n\n // Called at the end of every token. Sets `end`, `val`, and\n // maintains `context` and `exprAllowed`, and skips the space after\n // the token, so that the next one's `start` will point at the\n // right position.\n\n pp.finishToken = function(type, val) {\n this.end = this.pos;\n if (this.options.locations) { this.endLoc = this.curPosition(); }\n var prevType = this.type;\n this.type = type;\n this.value = val;\n\n this.updateContext(prevType);\n };\n\n // ### Token reading\n\n // This is the function that is called to fetch the next token. It\n // is somewhat obscure, because it works in character codes rather\n // than characters, and because operator parsing has been inlined\n // into it.\n //\n // All in the name of speed.\n //\n pp.readToken_dot = function() {\n var next = this.input.charCodeAt(this.pos + 1);\n if (next >= 48 && next <= 57) { return this.readNumber(true) }\n var next2 = this.input.charCodeAt(this.pos + 2);\n if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.'\n this.pos += 3;\n return this.finishToken(types$1.ellipsis)\n } else {\n ++this.pos;\n return this.finishToken(types$1.dot)\n }\n };\n\n pp.readToken_slash = function() { // '/'\n var next = this.input.charCodeAt(this.pos + 1);\n if (this.exprAllowed) { ++this.pos; return this.readRegexp() }\n if (next === 61) { return this.finishOp(types$1.assign, 2) }\n return this.finishOp(types$1.slash, 1)\n };\n\n pp.readToken_mult_modulo_exp = function(code) { // '%*'\n var next = this.input.charCodeAt(this.pos + 1);\n var size = 1;\n var tokentype = code === 42 ? types$1.star : types$1.modulo;\n\n // exponentiation operator ** and **=\n if (this.options.ecmaVersion >= 7 && code === 42 && next === 42) {\n ++size;\n tokentype = types$1.starstar;\n next = this.input.charCodeAt(this.pos + 2);\n }\n\n if (next === 61) { return this.finishOp(types$1.assign, size + 1) }\n return this.finishOp(tokentype, size)\n };\n\n pp.readToken_pipe_amp = function(code) { // '|&'\n var next = this.input.charCodeAt(this.pos + 1);\n if (next === code) {\n if (this.options.ecmaVersion >= 12) {\n var next2 = this.input.charCodeAt(this.pos + 2);\n if (next2 === 61) { return this.finishOp(types$1.assign, 3) }\n }\n return this.finishOp(code === 124 ? types$1.logicalOR : types$1.logicalAND, 2)\n }\n if (next === 61) { return this.finishOp(types$1.assign, 2) }\n return this.finishOp(code === 124 ? types$1.bitwiseOR : types$1.bitwiseAND, 1)\n };\n\n pp.readToken_caret = function() { // '^'\n var next = this.input.charCodeAt(this.pos + 1);\n if (next === 61) { return this.finishOp(types$1.assign, 2) }\n return this.finishOp(types$1.bitwiseXOR, 1)\n };\n\n pp.readToken_plus_min = function(code) { // '+-'\n var next = this.input.charCodeAt(this.pos + 1);\n if (next === code) {\n if (next === 45 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 62 &&\n (this.lastTokEnd === 0 || lineBreak.test(this.input.slice(this.lastTokEnd, this.pos)))) {\n // A `-->` line comment\n this.skipLineComment(3);\n this.skipSpace();\n return this.nextToken()\n }\n return this.finishOp(types$1.incDec, 2)\n }\n if (next === 61) { return this.finishOp(types$1.assign, 2) }\n return this.finishOp(types$1.plusMin, 1)\n };\n\n pp.readToken_lt_gt = function(code) { // '<>'\n var next = this.input.charCodeAt(this.pos + 1);\n var size = 1;\n if (next === code) {\n size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2;\n if (this.input.charCodeAt(this.pos + size) === 61) { return this.finishOp(types$1.assign, size + 1) }\n return this.finishOp(types$1.bitShift, size)\n }\n if (next === 33 && code === 60 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 45 &&\n this.input.charCodeAt(this.pos + 3) === 45) {\n // `<!--`, an XML-style comment that should be interpreted as a line comment\n this.skipLineComment(4);\n this.skipSpace();\n return this.nextToken()\n }\n if (next === 61) { size = 2; }\n return this.finishOp(types$1.relational, size)\n };\n\n pp.readToken_eq_excl = function(code) { // '=!'\n var next = this.input.charCodeAt(this.pos + 1);\n if (next === 61) { return this.finishOp(types$1.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2) }\n if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) { // '=>'\n this.pos += 2;\n return this.finishToken(types$1.arrow)\n }\n return this.finishOp(code === 61 ? types$1.eq : types$1.prefix, 1)\n };\n\n pp.readToken_question = function() { // '?'\n var ecmaVersion = this.options.ecmaVersion;\n if (ecmaVersion >= 11) {\n var next = this.input.charCodeAt(this.pos + 1);\n if (next === 46) {\n var next2 = this.input.charCodeAt(this.pos + 2);\n if (next2 < 48 || next2 > 57) { return this.finishOp(types$1.questionDot, 2) }\n }\n if (next === 63) {\n if (ecmaVersion >= 12) {\n var next2$1 = this.input.charCodeAt(this.pos + 2);\n if (next2$1 === 61) { return this.finishOp(types$1.assign, 3) }\n }\n return this.finishOp(types$1.coalesce, 2)\n }\n }\n return this.finishOp(types$1.question, 1)\n };\n\n pp.readToken_numberSign = function() { // '#'\n var ecmaVersion = this.options.ecmaVersion;\n var code = 35; // '#'\n if (ecmaVersion >= 13) {\n ++this.pos;\n code = this.fullCharCodeAtPos();\n if (isIdentifierStart(code, true) || code === 92 /* '\\' */) {\n return this.finishToken(types$1.privateId, this.readWord1())\n }\n }\n\n this.raise(this.pos, \"Unexpected character '\" + codePointToString(code) + \"'\");\n };\n\n pp.getTokenFromCode = function(code) {\n switch (code) {\n // The interpretation of a dot depends on whether it is followed\n // by a digit or another two dots.\n case 46: // '.'\n return this.readToken_dot()\n\n // Punctuation tokens.\n case 40: ++this.pos; return this.finishToken(types$1.parenL)\n case 41: ++this.pos; return this.finishToken(types$1.parenR)\n case 59: ++this.pos; return this.finishToken(types$1.semi)\n case 44: ++this.pos; return this.finishToken(types$1.comma)\n case 91: ++this.pos; return this.finishToken(types$1.bracketL)\n case 93: ++this.pos; return this.finishToken(types$1.bracketR)\n case 123: ++this.pos; return this.finishToken(types$1.braceL)\n case 125: ++this.pos; return this.finishToken(types$1.braceR)\n case 58: ++this.pos; return this.finishToken(types$1.colon)\n\n case 96: // '`'\n if (this.options.ecmaVersion < 6) { break }\n ++this.pos;\n return this.finishToken(types$1.backQuote)\n\n case 48: // '0'\n var next = this.input.charCodeAt(this.pos + 1);\n if (next === 120 || next === 88) { return this.readRadixNumber(16) } // '0x', '0X' - hex number\n if (this.options.ecmaVersion >= 6) {\n if (next === 111 || next === 79) { return this.readRadixNumber(8) } // '0o', '0O' - octal number\n if (next === 98 || next === 66) { return this.readRadixNumber(2) } // '0b', '0B' - binary number\n }\n\n // Anything else beginning with a digit is an integer, octal\n // number, or float.\n case 49: case 50: case 51: case 52: case 53: case 54: case 55: case 56: case 57: // 1-9\n return this.readNumber(false)\n\n // Quotes produce strings.\n case 34: case 39: // '\"', \"'\"\n return this.readString(code)\n\n // Operators are parsed inline in tiny state machines. '=' (61) is\n // often referred to. `finishOp` simply skips the amount of\n // characters it is given as second argument, and returns a token\n // of the type given by its first argument.\n case 47: // '/'\n return this.readToken_slash()\n\n case 37: case 42: // '%*'\n return this.readToken_mult_modulo_exp(code)\n\n case 124: case 38: // '|&'\n return this.readToken_pipe_amp(code)\n\n case 94: // '^'\n return this.readToken_caret()\n\n case 43: case 45: // '+-'\n return this.readToken_plus_min(code)\n\n case 60: case 62: // '<>'\n return this.readToken_lt_gt(code)\n\n case 61: case 33: // '=!'\n return this.readToken_eq_excl(code)\n\n case 63: // '?'\n return this.readToken_question()\n\n case 126: // '~'\n return this.finishOp(types$1.prefix, 1)\n\n case 35: // '#'\n return this.readToken_numberSign()\n }\n\n this.raise(this.pos, \"Unexpected character '\" + codePointToString(code) + \"'\");\n };\n\n pp.finishOp = function(type, size) {\n var str = this.input.slice(this.pos, this.pos + size);\n this.pos += size;\n return this.finishToken(type, str)\n };\n\n pp.readRegexp = function() {\n var escaped, inClass, start = this.pos;\n for (;;) {\n if (this.pos >= this.input.length) { this.raise(start, \"Unterminated regular expression\"); }\n var ch = this.input.charAt(this.pos);\n if (lineBreak.test(ch)) { this.raise(start, \"Unterminated regular expression\"); }\n if (!escaped) {\n if (ch === \"[\") { inClass = true; }\n else if (ch === \"]\" && inClass) { inClass = false; }\n else if (ch === \"/\" && !inClass) { break }\n escaped = ch === \"\\\\\";\n } else { escaped = false; }\n ++this.pos;\n }\n var pattern = this.input.slice(start, this.pos);\n ++this.pos;\n var flagsStart = this.pos;\n var flags = this.readWord1();\n if (this.containsEsc) { this.unexpected(flagsStart); }\n\n // Validate pattern\n var state = this.regexpState || (this.regexpState = new RegExpValidationState(this));\n state.reset(start, pattern, flags);\n this.validateRegExpFlags(state);\n this.validateRegExpPattern(state);\n\n // Create Literal#value property value.\n var value = null;\n try {\n value = new RegExp(pattern, flags);\n } catch (e) {\n // ESTree requires null if it failed to instantiate RegExp object.\n // https://github.com/estree/estree/blob/a27003adf4fd7bfad44de9cef372a2eacd527b1c/es5.md#regexpliteral\n }\n\n return this.finishToken(types$1.regexp, {pattern: pattern, flags: flags, value: value})\n };\n\n // Read an integer in the given radix. Return null if zero digits\n // were read, the integer value otherwise. When `len` is given, this\n // will return `null` unless the integer has exactly `len` digits.\n\n pp.readInt = function(radix, len, maybeLegacyOctalNumericLiteral) {\n // `len` is used for character escape sequences. In that case, disallow separators.\n var allowSeparators = this.options.ecmaVersion >= 12 && len === undefined;\n\n // `maybeLegacyOctalNumericLiteral` is true if it doesn't have prefix (0x,0o,0b)\n // and isn't fraction part nor exponent part. In that case, if the first digit\n // is zero then disallow separators.\n var isLegacyOctalNumericLiteral = maybeLegacyOctalNumericLiteral && this.input.charCodeAt(this.pos) === 48;\n\n var start = this.pos, total = 0, lastCode = 0;\n for (var i = 0, e = len == null ? Infinity : len; i < e; ++i, ++this.pos) {\n var code = this.input.charCodeAt(this.pos), val = (void 0);\n\n if (allowSeparators && code === 95) {\n if (isLegacyOctalNumericLiteral) { this.raiseRecoverable(this.pos, \"Numeric separator is not allowed in legacy octal numeric literals\"); }\n if (lastCode === 95) { this.raiseRecoverable(this.pos, \"Numeric separator must be exactly one underscore\"); }\n if (i === 0) { this.raiseRecoverable(this.pos, \"Numeric separator is not allowed at the first of digits\"); }\n lastCode = code;\n continue\n }\n\n if (code >= 97) { val = code - 97 + 10; } // a\n else if (code >= 65) { val = code - 65 + 10; } // A\n else if (code >= 48 && code <= 57) { val = code - 48; } // 0-9\n else { val = Infinity; }\n if (val >= radix) { break }\n lastCode = code;\n total = total * radix + val;\n }\n\n if (allowSeparators && lastCode === 95) { this.raiseRecoverable(this.pos - 1, \"Numeric separator is not allowed at the last of digits\"); }\n if (this.pos === start || len != null && this.pos - start !== len) { return null }\n\n return total\n };\n\n function stringToNumber(str, isLegacyOctalNumericLiteral) {\n if (isLegacyOctalNumericLiteral) {\n return parseInt(str, 8)\n }\n\n // `parseFloat(value)` stops parsing at the first numeric separator then returns a wrong value.\n return parseFloat(str.replace(/_/g, \"\"))\n }\n\n function stringToBigInt(str) {\n if (typeof BigInt !== \"function\") {\n return null\n }\n\n // `BigInt(value)` throws syntax error if the string contains numeric separators.\n return BigInt(str.replace(/_/g, \"\"))\n }\n\n pp.readRadixNumber = function(radix) {\n var start = this.pos;\n this.pos += 2; // 0x\n var val = this.readInt(radix);\n if (val == null) { this.raise(this.start + 2, \"Expected number in radix \" + radix); }\n if (this.options.ecmaVersion >= 11 && this.input.charCodeAt(this.pos) === 110) {\n val = stringToBigInt(this.input.slice(start, this.pos));\n ++this.pos;\n } else if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, \"Identifier directly after number\"); }\n return this.finishToken(types$1.num, val)\n };\n\n // Read an integer, octal integer, or floating-point number.\n\n pp.readNumber = function(startsWithDot) {\n var start = this.pos;\n if (!startsWithDot && this.readInt(10, undefined, true) === null) { this.raise(start, \"Invalid number\"); }\n var octal = this.pos - start >= 2 && this.input.charCodeAt(start) === 48;\n if (octal && this.strict) { this.raise(start, \"Invalid number\"); }\n var next = this.input.charCodeAt(this.pos);\n if (!octal && !startsWithDot && this.options.ecmaVersion >= 11 && next === 110) {\n var val$1 = stringToBigInt(this.input.slice(start, this.pos));\n ++this.pos;\n if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, \"Identifier directly after number\"); }\n return this.finishToken(types$1.num, val$1)\n }\n if (octal && /[89]/.test(this.input.slice(start, this.pos))) { octal = false; }\n if (next === 46 && !octal) { // '.'\n ++this.pos;\n this.readInt(10);\n next = this.input.charCodeAt(this.pos);\n }\n if ((next === 69 || next === 101) && !octal) { // 'eE'\n next = this.input.charCodeAt(++this.pos);\n if (next === 43 || next === 45) { ++this.pos; } // '+-'\n if (this.readInt(10) === null) { this.raise(start, \"Invalid number\"); }\n }\n if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, \"Identifier directly after number\"); }\n\n var val = stringToNumber(this.input.slice(start, this.pos), octal);\n return this.finishToken(types$1.num, val)\n };\n\n // Read a string value, interpreting backslash-escapes.\n\n pp.readCodePoint = function() {\n var ch = this.input.charCodeAt(this.pos), code;\n\n if (ch === 123) { // '{'\n if (this.options.ecmaVersion < 6) { this.unexpected(); }\n var codePos = ++this.pos;\n code = this.readHexChar(this.input.indexOf(\"}\", this.pos) - this.pos);\n ++this.pos;\n if (code > 0x10FFFF) { this.invalidStringToken(codePos, \"Code point out of bounds\"); }\n } else {\n code = this.readHexChar(4);\n }\n return code\n };\n\n pp.readString = function(quote) {\n var out = \"\", chunkStart = ++this.pos;\n for (;;) {\n if (this.pos >= this.input.length) { this.raise(this.start, \"Unterminated string constant\"); }\n var ch = this.input.charCodeAt(this.pos);\n if (ch === quote) { break }\n if (ch === 92) { // '\\'\n out += this.input.slice(chunkStart, this.pos);\n out += this.readEscapedChar(false);\n chunkStart = this.pos;\n } else if (ch === 0x2028 || ch === 0x2029) {\n if (this.options.ecmaVersion < 10) { this.raise(this.start, \"Unterminated string constant\"); }\n ++this.pos;\n if (this.options.locations) {\n this.curLine++;\n this.lineStart = this.pos;\n }\n } else {\n if (isNewLine(ch)) { this.raise(this.start, \"Unterminated string constant\"); }\n ++this.pos;\n }\n }\n out += this.input.slice(chunkStart, this.pos++);\n return this.finishToken(types$1.string, out)\n };\n\n // Reads template string tokens.\n\n var INVALID_TEMPLATE_ESCAPE_ERROR = {};\n\n pp.tryReadTemplateToken = function() {\n this.inTemplateElement = true;\n try {\n this.readTmplToken();\n } catch (err) {\n if (err === INVALID_TEMPLATE_ESCAPE_ERROR) {\n this.readInvalidTemplateToken();\n } else {\n throw err\n }\n }\n\n this.inTemplateElement = false;\n };\n\n pp.invalidStringToken = function(position, message) {\n if (this.inTemplateElement && this.options.ecmaVersion >= 9) {\n throw INVALID_TEMPLATE_ESCAPE_ERROR\n } else {\n this.raise(position, message);\n }\n };\n\n pp.readTmplToken = function() {\n var out = \"\", chunkStart = this.pos;\n for (;;) {\n if (this.pos >= this.input.length) { this.raise(this.start, \"Unterminated template\"); }\n var ch = this.input.charCodeAt(this.pos);\n if (ch === 96 || ch === 36 && this.input.charCodeAt(this.pos + 1) === 123) { // '`', '${'\n if (this.pos === this.start && (this.type === types$1.template || this.type === types$1.invalidTemplate)) {\n if (ch === 36) {\n this.pos += 2;\n return this.finishToken(types$1.dollarBraceL)\n } else {\n ++this.pos;\n return this.finishToken(types$1.backQuote)\n }\n }\n out += this.input.slice(chunkStart, this.pos);\n return this.finishToken(types$1.template, out)\n }\n if (ch === 92) { // '\\'\n out += this.input.slice(chunkStart, this.pos);\n out += this.readEscapedChar(true);\n chunkStart = this.pos;\n } else if (isNewLine(ch)) {\n out += this.input.slice(chunkStart, this.pos);\n ++this.pos;\n switch (ch) {\n case 13:\n if (this.input.charCodeAt(this.pos) === 10) { ++this.pos; }\n case 10:\n out += \"\\n\";\n break\n default:\n out += String.fromCharCode(ch);\n break\n }\n if (this.options.locations) {\n ++this.curLine;\n this.lineStart = this.pos;\n }\n chunkStart = this.pos;\n } else {\n ++this.pos;\n }\n }\n };\n\n // Reads a template token to search for the end, without validating any escape sequences\n pp.readInvalidTemplateToken = function() {\n for (; this.pos < this.input.length; this.pos++) {\n switch (this.input[this.pos]) {\n case \"\\\\\":\n ++this.pos;\n break\n\n case \"$\":\n if (this.input[this.pos + 1] !== \"{\") {\n break\n }\n\n // falls through\n case \"`\":\n return this.finishToken(types$1.invalidTemplate, this.input.slice(this.start, this.pos))\n\n // no default\n }\n }\n this.raise(this.start, \"Unterminated template\");\n };\n\n // Used to read escaped characters\n\n pp.readEscapedChar = function(inTemplate) {\n var ch = this.input.charCodeAt(++this.pos);\n ++this.pos;\n switch (ch) {\n case 110: return \"\\n\" // 'n' -> '\\n'\n case 114: return \"\\r\" // 'r' -> '\\r'\n case 120: return String.fromCharCode(this.readHexChar(2)) // 'x'\n case 117: return codePointToString(this.readCodePoint()) // 'u'\n case 116: return \"\\t\" // 't' -> '\\t'\n case 98: return \"\\b\" // 'b' -> '\\b'\n case 118: return \"\\u000b\" // 'v' -> '\\u000b'\n case 102: return \"\\f\" // 'f' -> '\\f'\n case 13: if (this.input.charCodeAt(this.pos) === 10) { ++this.pos; } // '\\r\\n'\n case 10: // ' \\n'\n if (this.options.locations) { this.lineStart = this.pos; ++this.curLine; }\n return \"\"\n case 56:\n case 57:\n if (this.strict) {\n this.invalidStringToken(\n this.pos - 1,\n \"Invalid escape sequence\"\n );\n }\n if (inTemplate) {\n var codePos = this.pos - 1;\n\n this.invalidStringToken(\n codePos,\n \"Invalid escape sequence in template string\"\n );\n\n return null\n }\n default:\n if (ch >= 48 && ch <= 55) {\n var octalStr = this.input.substr(this.pos - 1, 3).match(/^[0-7]+/)[0];\n var octal = parseInt(octalStr, 8);\n if (octal > 255) {\n octalStr = octalStr.slice(0, -1);\n octal = parseInt(octalStr, 8);\n }\n this.pos += octalStr.length - 1;\n ch = this.input.charCodeAt(this.pos);\n if ((octalStr !== \"0\" || ch === 56 || ch === 57) && (this.strict || inTemplate)) {\n this.invalidStringToken(\n this.pos - 1 - octalStr.length,\n inTemplate\n ? \"Octal literal in template string\"\n : \"Octal literal in strict mode\"\n );\n }\n return String.fromCharCode(octal)\n }\n if (isNewLine(ch)) {\n // Unicode new line characters after \\ get removed from output in both\n // template literals and strings\n return \"\"\n }\n return String.fromCharCode(ch)\n }\n };\n\n // Used to read character escape sequences ('\\x', '\\u', '\\U').\n\n pp.readHexChar = function(len) {\n var codePos = this.pos;\n var n = this.readInt(16, len);\n if (n === null) { this.invalidStringToken(codePos, \"Bad character escape sequence\"); }\n return n\n };\n\n // Read an identifier, and return it as a string. Sets `this.containsEsc`\n // to whether the word contained a '\\u' escape.\n //\n // Incrementally adds only escaped chars, adding other chunks as-is\n // as a micro-optimization.\n\n pp.readWord1 = function() {\n this.containsEsc = false;\n var word = \"\", first = true, chunkStart = this.pos;\n var astral = this.options.ecmaVersion >= 6;\n while (this.pos < this.input.length) {\n var ch = this.fullCharCodeAtPos();\n if (isIdentifierChar(ch, astral)) {\n this.pos += ch <= 0xffff ? 1 : 2;\n } else if (ch === 92) { // \"\\\"\n this.containsEsc = true;\n word += this.input.slice(chunkStart, this.pos);\n var escStart = this.pos;\n if (this.input.charCodeAt(++this.pos) !== 117) // \"u\"\n { this.invalidStringToken(this.pos, \"Expecting Unicode escape sequence \\\\uXXXX\"); }\n ++this.pos;\n var esc = this.readCodePoint();\n if (!(first ? isIdentifierStart : isIdentifierChar)(esc, astral))\n { this.invalidStringToken(escStart, \"Invalid Unicode escape\"); }\n word += codePointToString(esc);\n chunkStart = this.pos;\n } else {\n break\n }\n first = false;\n }\n return word + this.input.slice(chunkStart, this.pos)\n };\n\n // Read an identifier or keyword token. Will check for reserved\n // words when necessary.\n\n pp.readWord = function() {\n var word = this.readWord1();\n var type = types$1.name;\n if (this.keywords.test(word)) {\n type = keywords[word];\n }\n return this.finishToken(type, word)\n };\n\n // Acorn is a tiny, fast JavaScript parser written in JavaScript.\n\n var version = \"8.8.0\";\n\n Parser.acorn = {\n Parser: Parser,\n version: version,\n defaultOptions: defaultOptions,\n Position: Position,\n SourceLocation: SourceLocation,\n getLineInfo: getLineInfo,\n Node: Node,\n TokenType: TokenType,\n tokTypes: types$1,\n keywordTypes: keywords,\n TokContext: TokContext,\n tokContexts: types,\n isIdentifierChar: isIdentifierChar,\n isIdentifierStart: isIdentifierStart,\n Token: Token,\n isNewLine: isNewLine,\n lineBreak: lineBreak,\n lineBreakG: lineBreakG,\n nonASCIIwhitespace: nonASCIIwhitespace\n };\n\n // The main exported interface (under `self.acorn` when in the\n // browser) is a `parse` function that takes a code string and\n // returns an abstract syntax tree as specified by [Mozilla parser\n // API][api].\n //\n // [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API\n\n function parse(input, options) {\n return Parser.parse(input, options)\n }\n\n // This function tries to parse a single expression at a given\n // offset in a string. Useful for parsing mixed-language formats\n // that embed JavaScript expressions.\n\n function parseExpressionAt(input, pos, options) {\n return Parser.parseExpressionAt(input, pos, options)\n }\n\n // Acorn is organized as a tokenizer and a recursive-descent parser.\n // The `tokenizer` export provides an interface to the tokenizer.\n\n function tokenizer(input, options) {\n return Parser.tokenizer(input, options)\n }\n\n exports.Node = Node;\n exports.Parser = Parser;\n exports.Position = Position;\n exports.SourceLocation = SourceLocation;\n exports.TokContext = TokContext;\n exports.Token = Token;\n exports.TokenType = TokenType;\n exports.defaultOptions = defaultOptions;\n exports.getLineInfo = getLineInfo;\n exports.isIdentifierChar = isIdentifierChar;\n exports.isIdentifierStart = isIdentifierStart;\n exports.isNewLine = isNewLine;\n exports.keywordTypes = keywords;\n exports.lineBreak = lineBreak;\n exports.lineBreakG = lineBreakG;\n exports.nonASCIIwhitespace = nonASCIIwhitespace;\n exports.parse = parse;\n exports.parseExpressionAt = parseExpressionAt;\n exports.tokContexts = types;\n exports.tokTypes = types$1;\n exports.tokenizer = tokenizer;\n exports.version = version;\n\n Object.defineProperty(exports, '__esModule', { value: true });\n\n}));\n\n\n//# sourceURL=webpack:///./node_modules/acorn/dist/acorn.js?");
/***/ }),
/***/ "./node_modules/paper/dist/paper-full.js":
/*!***********************************************!*\
!*** ./node_modules/paper/dist/paper-full.js ***!
\***********************************************/
/***/ (function(module, exports, __webpack_require__) {
eval("var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;/*!\n * Paper.js v0.12.15 - The Swiss Army Knife of Vector Graphics Scripting.\n * http://paperjs.org/\n *\n * Copyright (c) 2011 - 2020, Jürg Lehni & Jonathan Puckey\n * http://juerglehni.com/ & https://puckey.studio/\n *\n * Distributed under the MIT license. See LICENSE file for details.\n *\n * All rights reserved.\n *\n * Date: Wed Mar 17 10:49:48 2021 +0100\n *\n ***\n *\n * Straps.js - Class inheritance library with support for bean-style accessors\n *\n * Copyright (c) 2006 - 2020 Jürg Lehni\n * http://juerglehni.com/\n *\n * Distributed under the MIT license.\n *\n ***\n *\n * Acorn.js\n * https://marijnhaverbeke.nl/acorn/\n *\n * Acorn is a tiny, fast JavaScript parser written in JavaScript,\n * created by Marijn Haverbeke and released under an MIT license.\n *\n */\n\nvar paper = function(self, undefined) {\n\nself = self || __webpack_require__(/*! ./node/self.js */ \"?974e\");\nvar window = self.window,\n\tdocument = self.document;\n\nvar Base = new function() {\n\tvar hidden = /^(statics|enumerable|beans|preserve)$/,\n\t\tarray = [],\n\t\tslice = array.slice,\n\t\tcreate = Object.create,\n\t\tdescribe = Object.getOwnPropertyDescriptor,\n\t\tdefine = Object.defineProperty,\n\n\t\tforEach = array.forEach || function(iter, bind) {\n\t\t\tfor (var i = 0, l = this.length; i < l; i++) {\n\t\t\t\titer.call(bind, this[i], i, this);\n\t\t\t}\n\t\t},\n\n\t\tforIn = function(iter, bind) {\n\t\t\tfor (var i in this) {\n\t\t\t\tif (this.hasOwnProperty(i))\n\t\t\t\t\titer.call(bind, this[i], i, this);\n\t\t\t}\n\t\t},\n\n\t\tset = Object.assign || function(dst) {\n\t\t\tfor (var i = 1, l = arguments.length; i < l; i++) {\n\t\t\t\tvar src = arguments[i];\n\t\t\t\tfor (var key in src) {\n\t\t\t\t\tif (src.hasOwnProperty(key))\n\t\t\t\t\t\tdst[key] = src[key];\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn dst;\n\t\t},\n\n\t\teach = function(obj, iter, bind) {\n\t\t\tif (obj) {\n\t\t\t\tvar desc = describe(obj, 'length');\n\t\t\t\t(desc && typeof desc.value === 'number' ? forEach : forIn)\n\t\t\t\t\t.call(obj, iter, bind = bind || obj);\n\t\t\t}\n\t\t\treturn bind;\n\t\t};\n\n\tfunction inject(dest, src, enumerable, beans, preserve) {\n\t\tvar beansNames = {};\n\n\t\tfunction field(name, val) {\n\t\t\tval = val || (val = describe(src, name))\n\t\t\t\t\t&& (val.get ? val : val.value);\n\t\t\tif (typeof val === 'string' && val[0] === '#')\n\t\t\t\tval = dest[val.substring(1)] || val;\n\t\t\tvar isFunc = typeof val === 'function',\n\t\t\t\tres = val,\n\t\t\t\tprev = preserve || isFunc && !val.base\n\t\t\t\t\t\t? (val && val.get ? name in dest : dest[name])\n\t\t\t\t\t\t: null,\n\t\t\t\tbean;\n\t\t\tif (!preserve || !prev) {\n\t\t\t\tif (isFunc && prev)\n\t\t\t\t\tval.base = prev;\n\t\t\t\tif (isFunc && beans !== false\n\t\t\t\t\t\t&& (bean = name.match(/^([gs]et|is)(([A-Z])(.*))$/)))\n\t\t\t\t\tbeansNames[bean[3].toLowerCase() + bean[4]] = bean[2];\n\t\t\t\tif (!res || isFunc || !res.get || typeof res.get !== 'function'\n\t\t\t\t\t\t|| !Base.isPlainObject(res)) {\n\t\t\t\t\tres = { value: res, writable: true };\n\t\t\t\t}\n\t\t\t\tif ((describe(dest, name)\n\t\t\t\t\t\t|| { configurable: true }).configurable) {\n\t\t\t\t\tres.configurable = true;\n\t\t\t\t\tres.enumerable = enumerable != null ? enumerable : !bean;\n\t\t\t\t}\n\t\t\t\tdefine(dest, name, res);\n\t\t\t}\n\t\t}\n\t\tif (src) {\n\t\t\tfor (var name in src) {\n\t\t\t\tif (src.hasOwnProperty(name) && !hidden.test(name))\n\t\t\t\t\tfield(name);\n\t\t\t}\n\t\t\tfor (var name in beansNames) {\n\t\t\t\tvar part = beansNames[name],\n\t\t\t\t\tset = dest['set' + part],\n\t\t\t\t\tget = dest['get' + part] || set && dest['is' + part];\n\t\t\t\tif (get && (beans === true || get.length === 0))\n\t\t\t\t\tfield(name, { get: get, set: set });\n\t\t\t}\n\t\t}\n\t\treturn dest;\n\t}\n\n\tfunction Base() {\n\t\tfor (var i = 0, l = arguments.length; i < l; i++) {\n\t\t\tvar src = arguments[i];\n\t\t\tif (src)\n\t\t\t\tset(this, src);\n\t\t}\n\t\treturn this;\n\t}\n\n\treturn inject(Base, {\n\t\tinject: function(src) {\n\t\t\tif (src) {\n\t\t\t\tvar statics = src.statics === true ? src : src.statics,\n\t\t\t\t\tbeans = src.beans,\n\t\t\t\t\tpreserve = src.preserve;\n\t\t\t\tif (statics !== src)\n\t\t\t\t\tinject(this.prototype, src, src.enumerable, beans, preserve);\n\t\t\t\tinject(this, statics, null, beans, preserve);\n\t\t\t}\n\t\t\tfor (var i = 1, l = arguments.length; i < l; i++)\n\t\t\t\tthis.inject(arguments[i]);\n\t\t\treturn this;\n\t\t},\n\n\t\textend: function() {\n\t\t\tvar base = this,\n\t\t\t\tctor,\n\t\t\t\tproto;\n\t\t\tfor (var i = 0, obj, l = arguments.length;\n\t\t\t\t\ti < l && !(ctor && proto); i++) {\n\t\t\t\tobj = arguments[i];\n\t\t\t\tctor = ctor || obj.initialize;\n\t\t\t\tproto = proto || obj.prototype;\n\t\t\t}\n\t\t\tctor = ctor || function() {\n\t\t\t\tbase.apply(this, arguments);\n\t\t\t};\n\t\t\tproto = ctor.prototype = proto || create(this.prototype);\n\t\t\tdefine(proto, 'constructor',\n\t\t\t\t\t{ value: ctor, writable: true, configurable: true });\n\t\t\tinject(ctor, this);\n\t\t\tif (arguments.length)\n\t\t\t\tthis.inject.apply(ctor, arguments);\n\t\t\tctor.base = base;\n\t\t\treturn ctor;\n\t\t}\n\t}).inject({\n\t\tenumerable: false,\n\n\t\tinitialize: Base,\n\n\t\tset: Base,\n\n\t\tinject: function() {\n\t\t\tfor (var i = 0, l = arguments.length; i < l; i++) {\n\t\t\t\tvar src = arguments[i];\n\t\t\t\tif (src) {\n\t\t\t\t\tinject(this, src, src.enumerable, src.beans, src.preserve);\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn this;\n\t\t},\n\n\t\textend: function() {\n\t\t\tvar res = create(this);\n\t\t\treturn res.inject.apply(res, arguments);\n\t\t},\n\n\t\teach: function(iter, bind) {\n\t\t\treturn each(this, iter, bind);\n\t\t},\n\n\t\tclone: function() {\n\t\t\treturn new this.constructor(this);\n\t\t},\n\n\t\tstatics: {\n\t\t\tset: set,\n\t\t\teach: each,\n\t\t\tcreate: create,\n\t\t\tdefine: define,\n\t\t\tdescribe: describe,\n\n\t\t\tclone: function(obj) {\n\t\t\t\treturn set(new obj.constructor(), obj);\n\t\t\t},\n\n\t\t\tisPlainObject: function(obj) {\n\t\t\t\tvar ctor = obj != null && obj.constructor;\n\t\t\t\treturn ctor && (ctor === Object || ctor === Base\n\t\t\t\t\t\t|| ctor.name === 'Object');\n\t\t\t},\n\n\t\t\tpick: function(a, b) {\n\t\t\t\treturn a !== undefined ? a : b;\n\t\t\t},\n\n\t\t\tslice: function(list, begin, end) {\n\t\t\t\treturn slice.call(list, begin, end);\n\t\t\t}\n\t\t}\n\t});\n};\n\nif (true)\n\tmodule.exports = Base;\n\nBase.inject({\n\tenumerable: false,\n\n\ttoString: function() {\n\t\treturn this._id != null\n\t\t\t? (this._class || 'Object') + (this._name\n\t\t\t\t? \" '\" + this._name + \"'\"\n\t\t\t\t: ' @' + this._id)\n\t\t\t: '{ ' + Base.each(this, function(value, key) {\n\t\t\t\tif (!/^_/.test(key)) {\n\t\t\t\t\tvar type = typeof value;\n\t\t\t\t\tthis.push(key + ': ' + (type === 'number'\n\t\t\t\t\t\t\t? Formatter.instance.number(value)\n\t\t\t\t\t\t\t: type === 'string' ? \"'\" + value + \"'\" : value));\n\t\t\t\t}\n\t\t\t}, []).join(', ') + ' }';\n\t},\n\n\tgetClassName: function() {\n\t\treturn this._class || '';\n\t},\n\n\timportJSON: function(json) {\n\t\treturn Base.importJSON(json, this);\n\t},\n\n\texportJSON: function(options) {\n\t\treturn Base.exportJSON(this, options);\n\t},\n\n\ttoJSON: function() {\n\t\treturn Base.serialize(this);\n\t},\n\n\tset: function(props, exclude) {\n\t\tif (props)\n\t\t\tBase.filter(this, props, exclude, this._prioritize);\n\t\treturn this;\n\t}\n}, {\n\nbeans: false,\nstatics: {\n\texports: {},\n\n\textend: function extend() {\n\t\tvar res = extend.base.apply(this, arguments),\n\t\t\tname = res.prototype._class;\n\t\tif (name && !Base.exports[name])\n\t\t\tBase.exports[name] = res;\n\t\treturn res;\n\t},\n\n\tequals: function(obj1, obj2) {\n\t\tif (obj1 === obj2)\n\t\t\treturn true;\n\t\tif (obj1 && obj1.equals)\n\t\t\treturn obj1.equals(obj2);\n\t\tif (obj2 && obj2.equals)\n\t\t\treturn obj2.equals(obj1);\n\t\tif (obj1 && obj2\n\t\t\t\t&& typeof obj1 === 'object' && typeof obj2 === 'object') {\n\t\t\tif (Array.isArray(obj1) && Array.isArray(obj2)) {\n\t\t\t\tvar length = obj1.length;\n\t\t\t\tif (length !== obj2.length)\n\t\t\t\t\treturn false;\n\t\t\t\twhile (length--) {\n\t\t\t\t\tif (!Base.equals(obj1[length], obj2[length]))\n\t\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tvar keys = Object.keys(obj1),\n\t\t\t\t\tlength = keys.length;\n\t\t\t\tif (length !== Object.keys(obj2).length)\n\t\t\t\t\treturn false;\n\t\t\t\twhile (length--) {\n\t\t\t\t\tvar key = keys[length];\n\t\t\t\t\tif (!(obj2.hasOwnProperty(key)\n\t\t\t\t\t\t\t&& Base.equals(obj1[key], obj2[key])))\n\t\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn true;\n\t\t}\n\t\treturn false;\n\t},\n\n\tread: function(list, start, options, amount) {\n\t\tif (this === Base) {\n\t\t\tvar value = this.peek(list, start);\n\t\t\tlist.__index++;\n\t\t\treturn value;\n\t\t}\n\t\tvar proto = this.prototype,\n\t\t\treadIndex = proto._readIndex,\n\t\t\tbegin = start || readIndex && list.__index || 0,\n\t\t\tlength = list.length,\n\t\t\tobj = list[begin];\n\t\tamount = amount || length - begin;\n\t\tif (obj instanceof this\n\t\t\t|| options && options.readNull && obj == null && amount <= 1) {\n\t\t\tif (readIndex)\n\t\t\t\tlist.__index = begin + 1;\n\t\t\treturn obj && options && options.clone ? obj.clone() : obj;\n\t\t}\n\t\tobj = Base.create(proto);\n\t\tif (readIndex)\n\t\t\tobj.__read = true;\n\t\tobj = obj.initialize.apply(obj, begin > 0 || begin + amount < length\n\t\t\t\t? Base.slice(list, begin, begin + amount)\n\t\t\t\t: list) || obj;\n\t\tif (readIndex) {\n\t\t\tlist.__index = begin + obj.__read;\n\t\t\tvar filtered = obj.__filtered;\n\t\t\tif (filtered) {\n\t\t\t\tlist.__filtered = filtered;\n\t\t\t\tobj.__filtered = undefined;\n\t\t\t}\n\t\t\tobj.__read = undefined;\n\t\t}\n\t\treturn obj;\n\t},\n\n\tpeek: function(list, start) {\n\t\treturn list[list.__index = start || list.__index || 0];\n\t},\n\n\tremain: function(list) {\n\t\treturn list.length - (list.__index || 0);\n\t},\n\n\treadList: function(list, start, options, amount) {\n\t\tvar res = [],\n\t\t\tentry,\n\t\t\tbegin = start || 0,\n\t\t\tend = amount ? begin + amount : list.length;\n\t\tfor (var i = begin; i < end; i++) {\n\t\t\tres.push(Array.isArray(entry = list[i])\n\t\t\t\t\t? this.read(entry, 0, options)\n\t\t\t\t\t: this.read(list, i, options, 1));\n\t\t}\n\t\treturn res;\n\t},\n\n\treadNamed: function(list, name, start, options, amount) {\n\t\tvar value = this.getNamed(list, name),\n\t\t\thasValue = value !== undefined;\n\t\tif (hasValue) {\n\t\t\tvar filtered = list.__filtered;\n\t\t\tif (!filtered) {\n\t\t\t\tvar source = this.getSource(list);\n\t\t\t\tfiltered = list.__filtered = Base.create(source);\n\t\t\t\tfiltered.__unfiltered = source;\n\t\t\t}\n\t\t\tfiltered[name] = undefined;\n\t\t}\n\t\treturn this.read(hasValue ? [value] : list, start, options, amount);\n\t},\n\n\treadSupported: function(list, dest) {\n\t\tvar source = this.getSource(list),\n\t\t\tthat = this,\n\t\t\tread = false;\n\t\tif (source) {\n\t\t\tObject.keys(source).forEach(function(key) {\n\t\t\t\tif (key in dest) {\n\t\t\t\t\tvar value = that.readNamed(list, key);\n\t\t\t\t\tif (value !== undefined) {\n\t\t\t\t\t\tdest[key] = value;\n\t\t\t\t\t}\n\t\t\t\t\tread = true;\n\t\t\t\t}\n\t\t\t});\n\t\t}\n\t\treturn read;\n\t},\n\n\tgetSource: function(list) {\n\t\tvar source = list.__source;\n\t\tif (source === undefined) {\n\t\t\tvar arg = list.length === 1 && list[0];\n\t\t\tsource = list.__source = arg && Base.isPlainObject(arg)\n\t\t\t\t? arg : null;\n\t\t}\n\t\treturn source;\n\t},\n\n\tgetNamed: function(list, name) {\n\t\tvar source = this.getSource(list);\n\t\tif (source) {\n\t\t\treturn name ? source[name] : list.__filtered || source;\n\t\t}\n\t},\n\n\thasNamed: function(list, name) {\n\t\treturn !!this.getNamed(list, name);\n\t},\n\n\tfilter: function(dest, source, exclude, prioritize) {\n\t\tvar processed;\n\n\t\tfunction handleKey(key) {\n\t\t\tif (!(exclude && key in exclude) &&\n\t\t\t\t!(processed && key in processed)) {\n\t\t\t\tvar value = source[key];\n\t\t\t\tif (value !== undefined)\n\t\t\t\t\tdest[key] = value;\n\t\t\t}\n\t\t}\n\n\t\tif (prioritize) {\n\t\t\tvar keys = {};\n\t\t\tfor (var i = 0, key, l = prioritize.length; i < l; i++) {\n\t\t\t\tif ((key = prioritize[i]) in source) {\n\t\t\t\t\thandleKey(key);\n\t\t\t\t\tkeys[key] = true;\n\t\t\t\t}\n\t\t\t}\n\t\t\tprocessed = keys;\n\t\t}\n\n\t\tObject.keys(source.__unfiltered || source).forEach(handleKey);\n\t\treturn dest;\n\t},\n\n\tisPlainValue: function(obj, asString) {\n\t\treturn Base.isPlainObject(obj) || Array.isArray(obj)\n\t\t\t\t|| asString && typeof obj === 'string';\n\t},\n\n\tserialize: function(obj, options, compact, dictionary) {\n\t\toptions = options || {};\n\n\t\tvar isRoot = !dictionary,\n\t\t\tres;\n\t\tif (isRoot) {\n\t\t\toptions.formatter = new Formatter(options.precision);\n\t\t\tdictionary = {\n\t\t\t\tlength: 0,\n\t\t\t\tdefinitions: {},\n\t\t\t\treferences: {},\n\t\t\t\tadd: function(item, create) {\n\t\t\t\t\tvar id = '#' + item._id,\n\t\t\t\t\t\tref = this.references[id];\n\t\t\t\t\tif (!ref) {\n\t\t\t\t\t\tthis.length++;\n\t\t\t\t\t\tvar res = create.call(item),\n\t\t\t\t\t\t\tname = item._class;\n\t\t\t\t\t\tif (name && res[0] !== name)\n\t\t\t\t\t\t\tres.unshift(name);\n\t\t\t\t\t\tthis.definitions[id] = res;\n\t\t\t\t\t\tref = this.references[id] = [id];\n\t\t\t\t\t}\n\t\t\t\t\treturn ref;\n\t\t\t\t}\n\t\t\t};\n\t\t}\n\t\tif (obj && obj._serialize) {\n\t\t\tres = obj._serialize(options, dictionary);\n\t\t\tvar name = obj._class;\n\t\t\tif (name && !obj._compactSerialize && (isRoot || !compact)\n\t\t\t\t\t&& res[0] !== name) {\n\t\t\t\tres.unshift(name);\n\t\t\t}\n\t\t} else if (Array.isArray(obj)) {\n\t\t\tres = [];\n\t\t\tfor (var i = 0, l = obj.length; i < l; i++)\n\t\t\t\tres[i] = Base.serialize(obj[i], options, compact, dictionary);\n\t\t} else if (Base.isPlainObject(obj)) {\n\t\t\tres = {};\n\t\t\tvar keys = Object.keys(obj);\n\t\t\tfor (var i = 0, l = keys.length; i < l; i++) {\n\t\t\t\tvar key = keys[i];\n\t\t\t\tres[key] = Base.serialize(obj[key], options, compact,\n\t\t\t\t\t\tdictionary);\n\t\t\t}\n\t\t} else if (typeof obj === 'number') {\n\t\t\tres = options.formatter.number(obj, options.precision);\n\t\t} else {\n\t\t\tres = obj;\n\t\t}\n\t\treturn isRoot && dictionary.length > 0\n\t\t\t\t? [['dictionary', dictionary.definitions], res]\n\t\t\t\t: res;\n\t},\n\n\tdeserialize: function(json, create, _data, _setDictionary, _isRoot) {\n\t\tvar res = json,\n\t\t\tisFirst = !_data,\n\t\t\thasDictionary = isFirst && json && json.length\n\t\t\t\t&& json[0][0] === 'dictionary';\n\t\t_data = _data || {};\n\t\tif (Array.isArray(json)) {\n\t\t\tvar type = json[0],\n\t\t\t\tisDictionary = type === 'dictionary';\n\t\t\tif (json.length == 1 && /^#/.test(type)) {\n\t\t\t\treturn _data.dictionary[type];\n\t\t\t}\n\t\t\ttype = Base.exports[type];\n\t\t\tres = [];\n\t\t\tfor (var i = type ? 1 : 0, l = json.length; i < l; i++) {\n\t\t\t\tres.push(Base.deserialize(json[i], create, _data,\n\t\t\t\t\t\tisDictionary, hasDictionary));\n\t\t\t}\n\t\t\tif (type) {\n\t\t\t\tvar args = res;\n\t\t\t\tif (create) {\n\t\t\t\t\tres = create(type, args, isFirst || _isRoot);\n\t\t\t\t} else {\n\t\t\t\t\tres = new type(args);\n\t\t\t\t}\n\t\t\t}\n\t\t} else if (Base.isPlainObject(json)) {\n\t\t\tres = {};\n\t\t\tif (_setDictionary)\n\t\t\t\t_data.dictionary = res;\n\t\t\tfor (var key in json)\n\t\t\t\tres[key] = Base.deserialize(json[key], create, _data);\n\t\t}\n\t\treturn hasDictionary ? res[1] : res;\n\t},\n\n\texportJSON: function(obj, options) {\n\t\tvar json = Base.serialize(obj, options);\n\t\treturn options && options.asString == false\n\t\t\t\t? json\n\t\t\t\t: JSON.stringify(json);\n\t},\n\n\timportJSON: function(json, target) {\n\t\treturn Base.deserialize(\n\t\t\t\ttypeof json === 'string' ? JSON.parse(json) : json,\n\t\t\t\tfunction(ctor, args, isRoot) {\n\t\t\t\t\tvar useTarget = isRoot && target\n\t\t\t\t\t\t\t&& target.constructor === ctor,\n\t\t\t\t\t\tobj = useTarget ? target\n\t\t\t\t\t\t\t: Base.create(ctor.prototype);\n\t\t\t\t\tif (args.length === 1 && obj instanceof Item\n\t\t\t\t\t\t\t&& (useTarget || !(obj instanceof Layer))) {\n\t\t\t\t\t\tvar arg = args[0];\n\t\t\t\t\t\tif (Base.isPlainObject(arg)) {\n\t\t\t\t\t\t\targ.insert = false;\n\t\t\t\t\t\t\tif (useTarget) {\n\t\t\t\t\t\t\t\targs = args.concat([{ insert: true }]);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\t(useTarget ? obj.set : ctor).apply(obj, args);\n\t\t\t\t\tif (useTarget)\n\t\t\t\t\t\ttarget = null;\n\t\t\t\t\treturn obj;\n\t\t\t\t});\n\t},\n\n\tpush: function(list, items) {\n\t\tvar itemsLength = items.length;\n\t\tif (itemsLength < 4096) {\n\t\t\tlist.push.apply(list, items);\n\t\t} else {\n\t\t\tvar startLength = list.length;\n\t\t\tlist.length += itemsLength;\n\t\t\tfor (var i = 0; i < itemsLength; i++) {\n\t\t\t\tlist[startLength + i] = items[i];\n\t\t\t}\n\t\t}\n\t\treturn list;\n\t},\n\n\tsplice: function(list, items, index, remove) {\n\t\tvar amount = items && items.length,\n\t\t\tappend = index === undefined;\n\t\tindex = append ? list.length : index;\n\t\tif (index > list.length)\n\t\t\tindex = list.length;\n\t\tfor (var i = 0; i < amount; i++)\n\t\t\titems[i]._index = index + i;\n\t\tif (append) {\n\t\t\tBase.push(list, items);\n\t\t\treturn [];\n\t\t} else {\n\t\t\tvar args = [index, remove];\n\t\t\tif (items)\n\t\t\t\tBase.push(args, items);\n\t\t\tvar removed = list.splice.apply(list, args);\n\t\t\tfor (var i = 0, l = removed.length; i < l; i++)\n\t\t\t\tremoved[i]._index = undefined;\n\t\t\tfor (var i = index + amount, l = list.length; i < l; i++)\n\t\t\t\tlist[i]._index = i;\n\t\t\treturn removed;\n\t\t}\n\t},\n\n\tcapitalize: function(str) {\n\t\treturn str.replace(/\\b[a-z]/g, function(match) {\n\t\t\treturn match.toUpperCase();\n\t\t});\n\t},\n\n\tcamelize: function(str) {\n\t\treturn str.replace(/-(.)/g, function(match, chr) {\n\t\t\treturn chr.toUpperCase();\n\t\t});\n\t},\n\n\thyphenate: function(str) {\n\t\treturn str.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();\n\t}\n}});\n\nvar Emitter = {\n\ton: function(type, func) {\n\t\tif (typeof type !== 'string') {\n\t\t\tBase.each(type, function(value, key) {\n\t\t\t\tthis.on(key, value);\n\t\t\t}, this);\n\t\t} else {\n\t\t\tvar types = this._eventTypes,\n\t\t\t\tentry = types && types[type],\n\t\t\t\thandlers = this._callbacks = this._callbacks || {};\n\t\t\thandlers = handlers[type] = handlers[type] || [];\n\t\t\tif (handlers.indexOf(func) === -1) {\n\t\t\t\thandlers.push(func);\n\t\t\t\tif (entry && entry.install && handlers.length === 1)\n\t\t\t\t\tentry.install.call(this, type);\n\t\t\t}\n\t\t}\n\t\treturn this;\n\t},\n\n\toff: function(type, func) {\n\t\tif (typeof type !== 'string') {\n\t\t\tBase.each(type, function(value, key) {\n\t\t\t\tthis.off(key, value);\n\t\t\t}, this);\n\t\t\treturn;\n\t\t}\n\t\tvar types = this._eventTypes,\n\t\t\tentry = types && types[type],\n\t\t\thandlers = this._callbacks && this._callbacks[type],\n\t\t\tindex;\n\t\tif (handlers) {\n\t\t\tif (!func || (index = handlers.indexOf(func)) !== -1\n\t\t\t\t\t&& handlers.length === 1) {\n\t\t\t\tif (entry && entry.uninstall)\n\t\t\t\t\tentry.uninstall.call(this, type);\n\t\t\t\tdelete this._callbacks[type];\n\t\t\t} else if (index !== -1) {\n\t\t\t\thandlers.splice(index, 1);\n\t\t\t}\n\t\t}\n\t\treturn this;\n\t},\n\n\tonce: function(type, func) {\n\t\treturn this.on(type, function handler() {\n\t\t\tfunc.apply(this, arguments);\n\t\t\tthis.off(type, handler);\n\t\t});\n\t},\n\n\temit: function(type, event) {\n\t\tvar handlers = this._callbacks && this._callbacks[type];\n\t\tif (!handlers)\n\t\t\treturn false;\n\t\tvar args = Base.slice(arguments, 1),\n\t\t\tsetTarget = event && event.target && !event.currentTarget;\n\t\thandlers = handlers.slice();\n\t\tif (setTarget)\n\t\t\tevent.currentTarget = this;\n\t\tfor (var i = 0, l = handlers.length; i < l; i++) {\n\t\t\tif (handlers[i].apply(this, args) == false) {\n\t\t\t\tif (event && event.stop)\n\t\t\t\t\tevent.stop();\n\t\t\t\tbreak;\n\t\t }\n\t\t}\n\t\tif (setTarget)\n\t\t\tdelete event.currentTarget;\n\t\treturn true;\n\t},\n\n\tresponds: function(type) {\n\t\treturn !!(this._callbacks && this._callbacks[type]);\n\t},\n\n\tattach: '#on',\n\tdetach: '#off',\n\tfire: '#emit',\n\n\t_installEvents: function(install) {\n\t\tvar types = this._eventTypes,\n\t\t\thandlers = this._callbacks,\n\t\t\tkey = install ? 'install' : 'uninstall';\n\t\tif (types) {\n\t\t\tfor (var type in handlers) {\n\t\t\t\tif (handlers[type].length > 0) {\n\t\t\t\t\tvar entry = types[type],\n\t\t\t\t\t\tfunc = entry && entry[key];\n\t\t\t\t\tif (func)\n\t\t\t\t\t\tfunc.call(this, type);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\tstatics: {\n\t\tinject: function inject(src) {\n\t\t\tvar events = src._events;\n\t\t\tif (events) {\n\t\t\t\tvar types = {};\n\t\t\t\tBase.each(events, function(entry, key) {\n\t\t\t\t\tvar isString = typeof entry === 'string',\n\t\t\t\t\t\tname = isString ? entry : key,\n\t\t\t\t\t\tpart = Base.capitalize(name),\n\t\t\t\t\t\ttype = name.substring(2).toLowerCase();\n\t\t\t\t\ttypes[type] = isString ? {} : entry;\n\t\t\t\t\tname = '_' + name;\n\t\t\t\t\tsrc['get' + part] = function() {\n\t\t\t\t\t\treturn this[name];\n\t\t\t\t\t};\n\t\t\t\t\tsrc['set' + part] = function(func) {\n\t\t\t\t\t\tvar prev = this[name];\n\t\t\t\t\t\tif (prev)\n\t\t\t\t\t\t\tthis.off(type, prev);\n\t\t\t\t\t\tif (func)\n\t\t\t\t\t\t\tthis.on(type, func);\n\t\t\t\t\t\tthis[name] = func;\n\t\t\t\t\t};\n\t\t\t\t});\n\t\t\t\tsrc._eventTypes = types;\n\t\t\t}\n\t\t\treturn inject.base.apply(this, arguments);\n\t\t}\n\t}\n};\n\nvar PaperScope = Base.extend({\n\t_class: 'PaperScope',\n\n\tinitialize: function PaperScope() {\n\t\tpaper = this;\n\t\tthis.settings = new Base({\n\t\t\tapplyMatrix: true,\n\t\t\tinsertItems: true,\n\t\t\thandleSize: 4,\n\t\t\thitTolerance: 0\n\t\t});\n\t\tthis.project = null;\n\t\tthis.projects = [];\n\t\tthis.tools = [];\n\t\tthis._id = PaperScope._id++;\n\t\tPaperScope._scopes[this._id] = this;\n\t\tvar proto = PaperScope.prototype;\n\t\tif (!this.support) {\n\t\t\tvar ctx = CanvasProvider.getContext(1, 1) || {};\n\t\t\tproto.support = {\n\t\t\t\tnativeDash: 'setLineDash' in ctx || 'mozDash' in ctx,\n\t\t\t\tnativeBlendModes: BlendMode.nativeModes\n\t\t\t};\n\t\t\tCanvasProvider.release(ctx);\n\t\t}\n\t\tif (!this.agent) {\n\t\t\tvar user = self.navigator.userAgent.toLowerCase(),\n\t\t\t\tos = (/(darwin|win|mac|linux|freebsd|sunos)/.exec(user)||[])[0],\n\t\t\t\tplatform = os === 'darwin' ? 'mac' : os,\n\t\t\t\tagent = proto.agent = proto.browser = { platform: platform };\n\t\t\tif (platform)\n\t\t\t\tagent[platform] = true;\n\t\t\tuser.replace(\n\t\t\t\t/(opera|chrome|safari|webkit|firefox|msie|trident|atom|node|jsdom)\\/?\\s*([.\\d]+)(?:.*version\\/([.\\d]+))?(?:.*rv\\:v?([.\\d]+))?/g,\n\t\t\t\tfunction(match, n, v1, v2, rv) {\n\t\t\t\t\tif (!agent.chrome) {\n\t\t\t\t\t\tvar v = n === 'opera' ? v2 :\n\t\t\t\t\t\t\t\t/^(node|trident)$/.test(n) ? rv : v1;\n\t\t\t\t\t\tagent.version = v;\n\t\t\t\t\t\tagent.versionNumber = parseFloat(v);\n\t\t\t\t\t\tn = { trident: 'msie', jsdom: 'node' }[n] || n;\n\t\t\t\t\t\tagent.name = n;\n\t\t\t\t\t\tagent[n] = true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t);\n\t\t\tif (agent.chrome)\n\t\t\t\tdelete agent.webkit;\n\t\t\tif (agent.atom)\n\t\t\t\tdelete agent.chrome;\n\t\t}\n\t},\n\n\tversion: \"0.12.15\",\n\n\tgetView: function() {\n\t\tvar project = this.project;\n\t\treturn project && project._view;\n\t},\n\n\tgetPaper: function() {\n\t\treturn this;\n\t},\n\n\texecute: function(code, options) {\n\t\t\tvar exports = paper.PaperScript.execute(code, this, options);\n\t\t\tView.updateFocus();\n\t\t\treturn exports;\n\t},\n\n\tinstall: function(scope) {\n\t\tvar that = this;\n\t\tBase.each(['project', 'view', 'tool'], function(key) {\n\t\t\tBase.define(scope, key, {\n\t\t\t\tconfigurable: true,\n\t\t\t\tget: function() {\n\t\t\t\t\treturn that[key];\n\t\t\t\t}\n\t\t\t});\n\t\t});\n\t\tfor (var key in this)\n\t\t\tif (!/^_/.test(key) && this[key])\n\t\t\t\tscope[key] = this[key];\n\t},\n\n\tsetup: function(element) {\n\t\tpaper = this;\n\t\tthis.project = new Project(element);\n\t\treturn this;\n\t},\n\n\tcreateCanvas: function(width, height) {\n\t\treturn CanvasProvider.getCanvas(width, height);\n\t},\n\n\tactivate: function() {\n\t\tpaper = this;\n\t},\n\n\tclear: function() {\n\t\tvar projects = this.projects,\n\t\t\ttools = this.tools;\n\t\tfor (var i = projects.length - 1; i >= 0; i--)\n\t\t\tprojects[i].remove();\n\t\tfor (var i = tools.length - 1; i >= 0; i--)\n\t\t\ttools[i].remove();\n\t},\n\n\tremove: function() {\n\t\tthis.clear();\n\t\tdelete PaperScope._scopes[this._id];\n\t},\n\n\tstatics: new function() {\n\t\tfunction handleAttribute(name) {\n\t\t\tname += 'Attribute';\n\t\t\treturn function(el, attr) {\n\t\t\t\treturn el[name](attr) || el[name]('data-paper-' + attr);\n\t\t\t};\n\t\t}\n\n\t\treturn {\n\t\t\t_scopes: {},\n\t\t\t_id: 0,\n\n\t\t\tget: function(id) {\n\t\t\t\treturn this._scopes[id] || null;\n\t\t\t},\n\n\t\t\tgetAttribute: handleAttribute('get'),\n\t\t\thasAttribute: handleAttribute('has')\n\t\t};\n\t}\n});\n\nvar PaperScopeItem = Base.extend(Emitter, {\n\n\tinitialize: function(activate) {\n\t\tthis._scope = paper;\n\t\tthis._index = this._scope[this._list].push(this) - 1;\n\t\tif (activate || !this._scope[this._reference])\n\t\t\tthis.activate();\n\t},\n\n\tactivate: function() {\n\t\tif (!this._scope)\n\t\t\treturn false;\n\t\tvar prev = this._scope[this._reference];\n\t\tif (prev && prev !== this)\n\t\t\tprev.emit('deactivate');\n\t\tthis._scope[this._reference] = this;\n\t\tthis.emit('activate', prev);\n\t\treturn true;\n\t},\n\n\tisActive: function() {\n\t\treturn this._scope[this._reference] === this;\n\t},\n\n\tremove: function() {\n\t\tif (this._index == null)\n\t\t\treturn false;\n\t\tBase.splice(this._scope[this._list], null, this._index, 1);\n\t\tif (this._scope[this._reference] == this)\n\t\t\tthis._scope[this._reference] = null;\n\t\tthis._scope = null;\n\t\treturn true;\n\t},\n\n\tgetView: function() {\n\t\treturn this._scope.getView();\n\t}\n});\n\nvar CollisionDetection = {\n\tfindItemBoundsCollisions: function(items1, items2, tolerance) {\n\t\tfunction getBounds(items) {\n\t\t\tvar bounds = new Array(items.length);\n\t\t\tfor (var i = 0; i < items.length; i++) {\n\t\t\t\tvar rect = items[i].getBounds();\n\t\t\t\tbounds[i] = [rect.left, rect.top, rect.right, rect.bottom];\n\t\t\t}\n\t\t\treturn bounds;\n\t\t}\n\n\t\tvar bounds1 = getBounds(items1),\n\t\t\tbounds2 = !items2 || items2 === items1\n\t\t\t\t? bounds1\n\t\t\t\t: getBounds(items2);\n\t\treturn this.findBoundsCollisions(bounds1, bounds2, tolerance || 0);\n\t},\n\n\tfindCurveBoundsCollisions: function(curves1, curves2, tolerance, bothAxis) {\n\t\tfunction getBounds(curves) {\n\t\t\tvar min = Math.min,\n\t\t\t\tmax = Math.max,\n\t\t\t\tbounds = new Array(curves.length);\n\t\t\tfor (var i = 0; i < curves.length; i++) {\n\t\t\t\tvar v = curves[i];\n\t\t\t\tbounds[i] = [\n\t\t\t\t\tmin(v[0], v[2], v[4], v[6]),\n\t\t\t\t\tmin(v[1], v[3], v[5], v[7]),\n\t\t\t\t\tmax(v[0], v[2], v[4], v[6]),\n\t\t\t\t\tmax(v[1], v[3], v[5], v[7])\n\t\t\t\t];\n\t\t\t}\n\t\t\treturn bounds;\n\t\t}\n\n\t\tvar bounds1 = getBounds(curves1),\n\t\t\tbounds2 = !curves2 || curves2 === curves1\n\t\t\t\t? bounds1\n\t\t\t\t: getBounds(curves2);\n\t\tif (bothAxis) {\n\t\t\tvar hor = this.findBoundsCollisions(\n\t\t\t\t\tbounds1, bounds2, tolerance || 0, false, true),\n\t\t\t\tver = this.findBoundsCollisions(\n\t\t\t\t\tbounds1, bounds2, tolerance || 0, true, true),\n\t\t\t\tlist = [];\n\t\t\tfor (var i = 0, l = hor.length; i < l; i++) {\n\t\t\t\tlist[i] = { hor: hor[i], ver: ver[i] };\n\t\t\t}\n\t\t\treturn list;\n\t\t}\n\t\treturn this.findBoundsCollisions(bounds1, bounds2, tolerance || 0);\n\t},\n\n\tfindBoundsCollisions: function(boundsA, boundsB, tolerance,\n\t\tsweepVertical, onlySweepAxisCollisions) {\n\t\tvar self = !boundsB || boundsA === boundsB,\n\t\t\tallBounds = self ? boundsA : boundsA.concat(boundsB),\n\t\t\tlengthA = boundsA.length,\n\t\t\tlengthAll = allBounds.length;\n\n\t\tfunction binarySearch(indices, coord, value) {\n\t\t\tvar lo = 0,\n\t\t\t\thi = indices.length;\n\t\t\twhile (lo < hi) {\n\t\t\t\tvar mid = (hi + lo) >>> 1;\n\t\t\t\tif (allBounds[indices[mid]][coord] < value) {\n\t\t\t\t\tlo = mid + 1;\n\t\t\t\t} else {\n\t\t\t\t\thi = mid;\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn lo - 1;\n\t\t}\n\n\t\tvar pri0 = sweepVertical ? 1 : 0,\n\t\t\tpri1 = pri0 + 2,\n\t\t\tsec0 = sweepVertical ? 0 : 1,\n\t\t\tsec1 = sec0 + 2;\n\t\tvar allIndicesByPri0 = new Array(lengthAll);\n\t\tfor (var i = 0; i < lengthAll; i++) {\n\t\t\tallIndicesByPri0[i] = i;\n\t\t}\n\t\tallIndicesByPri0.sort(function(i1, i2) {\n\t\t\treturn allBounds[i1][pri0] - allBounds[i2][pri0];\n\t\t});\n\t\tvar activeIndicesByPri1 = [],\n\t\t\tallCollisions = new Array(lengthA);\n\t\tfor (var i = 0; i < lengthAll; i++) {\n\t\t\tvar curIndex = allIndicesByPri0[i],\n\t\t\t\tcurBounds = allBounds[curIndex],\n\t\t\t\torigIndex = self ? curIndex : curIndex - lengthA,\n\t\t\t\tisCurrentA = curIndex < lengthA,\n\t\t\t\tisCurrentB = self || !isCurrentA,\n\t\t\t\tcurCollisions = isCurrentA ? [] : null;\n\t\t\tif (activeIndicesByPri1.length) {\n\t\t\t\tvar pruneCount = binarySearch(activeIndicesByPri1, pri1,\n\t\t\t\t\t\tcurBounds[pri0] - tolerance) + 1;\n\t\t\t\tactiveIndicesByPri1.splice(0, pruneCount);\n\t\t\t\tif (self && onlySweepAxisCollisions) {\n\t\t\t\t\tcurCollisions = curCollisions.concat(activeIndicesByPri1);\n\t\t\t\t\tfor (var j = 0; j < activeIndicesByPri1.length; j++) {\n\t\t\t\t\t\tvar activeIndex = activeIndicesByPri1[j];\n\t\t\t\t\t\tallCollisions[activeIndex].push(origIndex);\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\tvar curSec1 = curBounds[sec1],\n\t\t\t\t\t\tcurSec0 = curBounds[sec0];\n\t\t\t\t\tfor (var j = 0; j < activeIndicesByPri1.length; j++) {\n\t\t\t\t\t\tvar activeIndex = activeIndicesByPri1[j],\n\t\t\t\t\t\t\tactiveBounds = allBounds[activeIndex],\n\t\t\t\t\t\t\tisActiveA = activeIndex < lengthA,\n\t\t\t\t\t\t\tisActiveB = self || activeIndex >= lengthA;\n\n\t\t\t\t\t\tif (\n\t\t\t\t\t\t\tonlySweepAxisCollisions ||\n\t\t\t\t\t\t\t(\n\t\t\t\t\t\t\t\tisCurrentA && isActiveB ||\n\t\t\t\t\t\t\t\tisCurrentB && isActiveA\n\t\t\t\t\t\t\t) && (\n\t\t\t\t\t\t\t\tcurSec1 >= activeBounds[sec0] - tolerance &&\n\t\t\t\t\t\t\t\tcurSec0 <= activeBounds[sec1] + tolerance\n\t\t\t\t\t\t\t)\n\t\t\t\t\t\t) {\n\t\t\t\t\t\t\tif (isCurrentA && isActiveB) {\n\t\t\t\t\t\t\t\tcurCollisions.push(\n\t\t\t\t\t\t\t\t\tself ? activeIndex : activeIndex - lengthA);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tif (isCurrentB && isActiveA) {\n\t\t\t\t\t\t\t\tallCollisions[activeIndex].push(origIndex);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (isCurrentA) {\n\t\t\t\tif (boundsA === boundsB) {\n\t\t\t\t\tcurCollisions.push(curIndex);\n\t\t\t\t}\n\t\t\t\tallCollisions[curIndex] = curCollisions;\n\t\t\t}\n\t\t\tif (activeIndicesByPri1.length) {\n\t\t\t\tvar curPri1 = curBounds[pri1],\n\t\t\t\t\tindex = binarySearch(activeIndicesByPri1, pri1, curPri1);\n\t\t\t\tactiveIndicesByPri1.splice(index + 1, 0, curIndex);\n\t\t\t} else {\n\t\t\t\tactiveIndicesByPri1.push(curIndex);\n\t\t\t}\n\t\t}\n\t\tfor (var i = 0; i < allCollisions.length; i++) {\n\t\t\tvar collisions = allCollisions[i];\n\t\t\tif (collisions) {\n\t\t\t\tcollisions.sort(function(i1, i2) { return i1 - i2; });\n\t\t\t}\n\t\t}\n\t\treturn allCollisions;\n\t}\n};\n\nvar Formatter = Base.extend({\n\tinitialize: function(precision) {\n\t\tthis.precision = Base.pick(precision, 5);\n\t\tthis.multiplier = Math.pow(10, this.precision);\n\t},\n\n\tnumber: function(val) {\n\t\treturn this.precision < 16\n\t\t\t\t? Math.round(val * this.multiplier) / this.multiplier : val;\n\t},\n\n\tpair: function(val1, val2, separator) {\n\t\treturn this.number(val1) + (separator || ',') + this.number(val2);\n\t},\n\n\tpoint: function(val, separator) {\n\t\treturn this.number(val.x) + (separator || ',') + this.number(val.y);\n\t},\n\n\tsize: function(val, separator) {\n\t\treturn this.number(val.width) + (separator || ',')\n\t\t\t\t+ this.number(val.height);\n\t},\n\n\trectangle: function(val, separator) {\n\t\treturn this.point(val, separator) + (separator || ',')\n\t\t\t\t+ this.size(val, separator);\n\t}\n});\n\nFormatter.instance = new Formatter();\n\nvar Numerical = new function() {\n\n\tvar abscissas = [\n\t\t[ 0.5773502691896257645091488],\n\t\t[0,0.7745966692414833770358531],\n\t\t[ 0.3399810435848562648026658,0.8611363115940525752239465],\n\t\t[0,0.5384693101056830910363144,0.9061798459386639927976269],\n\t\t[ 0.2386191860831969086305017,0.6612093864662645136613996,0.9324695142031520278123016],\n\t\t[0,0.4058451513773971669066064,0.7415311855993944398638648,0.9491079123427585245261897],\n\t\t[ 0.1834346424956498049394761,0.5255324099163289858177390,0.7966664774136267395915539,0.9602898564975362316835609],\n\t\t[0,0.3242534234038089290385380,0.6133714327005903973087020,0.8360311073266357942994298,0.9681602395076260898355762],\n\t\t[ 0.1488743389816312108848260,0.4333953941292471907992659,0.6794095682990244062343274,0.8650633666889845107320967,0.9739065285171717200779640],\n\t\t[0,0.2695431559523449723315320,0.5190961292068118159257257,0.7301520055740493240934163,0.8870625997680952990751578,0.9782286581460569928039380],\n\t\t[ 0.1252334085114689154724414,0.3678314989981801937526915,0.5873179542866174472967024,0.7699026741943046870368938,0.9041172563704748566784659,0.9815606342467192506905491],\n\t\t[0,0.2304583159551347940655281,0.4484927510364468528779129,0.6423493394403402206439846,0.8015780907333099127942065,0.9175983992229779652065478,0.9841830547185881494728294],\n\t\t[ 0.1080549487073436620662447,0.3191123689278897604356718,0.5152486363581540919652907,0.6872929048116854701480198,0.8272013150697649931897947,0.9284348836635735173363911,0.9862838086968123388415973],\n\t\t[0,0.2011940939974345223006283,0.3941513470775633698972074,0.5709721726085388475372267,0.7244177313601700474161861,0.8482065834104272162006483,0.9372733924007059043077589,0.9879925180204854284895657],\n\t\t[ 0.0950125098376374401853193,0.2816035507792589132304605,0.4580167776572273863424194,0.6178762444026437484466718,0.7554044083550030338951012,0.8656312023878317438804679,0.9445750230732325760779884,0.9894009349916499325961542]\n\t];\n\n\tvar weights = [\n\t\t[1],\n\t\t[0.8888888888888888888888889,0.5555555555555555555555556],\n\t\t[0.6521451548625461426269361,0.3478548451374538573730639],\n\t\t[0.5688888888888888888888889,0.4786286704993664680412915,0.2369268850561890875142640],\n\t\t[0.4679139345726910473898703,0.3607615730481386075698335,0.1713244923791703450402961],\n\t\t[0.4179591836734693877551020,0.3818300505051189449503698,0.2797053914892766679014678,0.1294849661688696932706114],\n\t\t[0.3626837833783619829651504,0.3137066458778872873379622,0.2223810344533744705443560,0.1012285362903762591525314],\n\t\t[0.3302393550012597631645251,0.3123470770400028400686304,0.2606106964029354623187429,0.1806481606948574040584720,0.0812743883615744119718922],\n\t\t[0.2955242247147528701738930,0.2692667193099963550912269,0.2190863625159820439955349,0.1494513491505805931457763,0.0666713443086881375935688],\n\t\t[0.2729250867779006307144835,0.2628045445102466621806889,0.2331937645919904799185237,0.1862902109277342514260976,0.1255803694649046246346943,0.0556685671161736664827537],\n\t\t[0.2491470458134027850005624,0.2334925365383548087608499,0.2031674267230659217490645,0.1600783285433462263346525,0.1069393259953184309602547,0.0471753363865118271946160],\n\t\t[0.2325515532308739101945895,0.2262831802628972384120902,0.2078160475368885023125232,0.1781459807619457382800467,0.1388735102197872384636018,0.0921214998377284479144218,0.0404840047653158795200216],\n\t\t[0.2152638534631577901958764,0.2051984637212956039659241,0.1855383974779378137417166,0.1572031671581935345696019,0.1215185706879031846894148,0.0801580871597602098056333,0.0351194603317518630318329],\n\t\t[0.2025782419255612728806202,0.1984314853271115764561183,0.1861610000155622110268006,0.1662692058169939335532009,0.1395706779261543144478048,0.1071592204671719350118695,0.0703660474881081247092674,0.0307532419961172683546284],\n\t\t[0.1894506104550684962853967,0.1826034150449235888667637,0.1691565193950025381893121,0.1495959888165767320815017,0.1246289712555338720524763,0.0951585116824927848099251,0.0622535239386478928628438,0.0271524594117540948517806]\n\t];\n\n\tvar abs = Math.abs,\n\t\tsqrt = Math.sqrt,\n\t\tpow = Math.pow,\n\t\tlog2 = Math.log2 || function(x) {\n\t\t\treturn Math.log(x) * Math.LOG2E;\n\t\t},\n\t\tEPSILON = 1e-12,\n\t\tMACHINE_EPSILON = 1.12e-16;\n\n\tfunction clamp(value, min, max) {\n\t\treturn value < min ? min : value > max ? max : value;\n\t}\n\n\tfunction getDiscriminant(a, b, c) {\n\t\tfunction split(v) {\n\t\t\tvar x = v * 134217729,\n\t\t\t\ty = v - x,\n\t\t\t\thi = y + x,\n\t\t\t\tlo = v - hi;\n\t\t\treturn [hi, lo];\n\t\t}\n\n\t\tvar D = b * b - a * c,\n\t\t\tE = b * b + a * c;\n\t\tif (abs(D) * 3 < E) {\n\t\t\tvar ad = split(a),\n\t\t\t\tbd = split(b),\n\t\t\t\tcd = split(c),\n\t\t\t\tp = b * b,\n\t\t\t\tdp = (bd[0] * bd[0] - p + 2 * bd[0] * bd[1]) + bd[1] * bd[1],\n\t\t\t\tq = a * c,\n\t\t\t\tdq = (ad[0] * cd[0] - q + ad[0] * cd[1] + ad[1] * cd[0])\n\t\t\t\t\t\t+ ad[1] * cd[1];\n\t\t\tD = (p - q) + (dp - dq);\n\t\t}\n\t\treturn D;\n\t}\n\n\tfunction getNormalizationFactor() {\n\t\tvar norm = Math.max.apply(Math, arguments);\n\t\treturn norm && (norm < 1e-8 || norm > 1e8)\n\t\t\t\t? pow(2, -Math.round(log2(norm)))\n\t\t\t\t: 0;\n\t}\n\n\treturn {\n\t\tEPSILON: EPSILON,\n\t\tMACHINE_EPSILON: MACHINE_EPSILON,\n\t\tCURVETIME_EPSILON: 1e-8,\n\t\tGEOMETRIC_EPSILON: 1e-7,\n\t\tTRIGONOMETRIC_EPSILON: 1e-8,\n\t\tKAPPA: 4 * (sqrt(2) - 1) / 3,\n\n\t\tisZero: function(val) {\n\t\t\treturn val >= -EPSILON && val <= EPSILON;\n\t\t},\n\n\t\tisMachineZero: function(val) {\n\t\t\treturn val >= -MACHINE_EPSILON && val <= MACHINE_EPSILON;\n\t\t},\n\n\t\tclamp: clamp,\n\n\t\tintegrate: function(f, a, b, n) {\n\t\t\tvar x = abscissas[n - 2],\n\t\t\t\tw = weights[n - 2],\n\t\t\t\tA = (b - a) * 0.5,\n\t\t\t\tB = A + a,\n\t\t\t\ti = 0,\n\t\t\t\tm = (n + 1) >> 1,\n\t\t\t\tsum = n & 1 ? w[i++] * f(B) : 0;\n\t\t\twhile (i < m) {\n\t\t\t\tvar Ax = A * x[i];\n\t\t\t\tsum += w[i++] * (f(B + Ax) + f(B - Ax));\n\t\t\t}\n\t\t\treturn A * sum;\n\t\t},\n\n\t\tfindRoot: function(f, df, x, a, b, n, tolerance) {\n\t\t\tfor (var i = 0; i < n; i++) {\n\t\t\t\tvar fx = f(x),\n\t\t\t\t\tdx = fx / df(x),\n\t\t\t\t\tnx = x - dx;\n\t\t\t\tif (abs(dx) < tolerance) {\n\t\t\t\t\tx = nx;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tif (fx > 0) {\n\t\t\t\t\tb = x;\n\t\t\t\t\tx = nx <= a ? (a + b) * 0.5 : nx;\n\t\t\t\t} else {\n\t\t\t\t\ta = x;\n\t\t\t\t\tx = nx >= b ? (a + b) * 0.5 : nx;\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn clamp(x, a, b);\n\t\t},\n\n\t\tsolveQuadratic: function(a, b, c, roots, min, max) {\n\t\t\tvar x1, x2 = Infinity;\n\t\t\tif (abs(a) < EPSILON) {\n\t\t\t\tif (abs(b) < EPSILON)\n\t\t\t\t\treturn abs(c) < EPSILON ? -1 : 0;\n\t\t\t\tx1 = -c / b;\n\t\t\t} else {\n\t\t\t\tb *= -0.5;\n\t\t\t\tvar D = getDiscriminant(a, b, c);\n\t\t\t\tif (D && abs(D) < MACHINE_EPSILON) {\n\t\t\t\t\tvar f = getNormalizationFactor(abs(a), abs(b), abs(c));\n\t\t\t\t\tif (f) {\n\t\t\t\t\t\ta *= f;\n\t\t\t\t\t\tb *= f;\n\t\t\t\t\t\tc *= f;\n\t\t\t\t\t\tD = getDiscriminant(a, b, c);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tif (D >= -MACHINE_EPSILON) {\n\t\t\t\t\tvar Q = D < 0 ? 0 : sqrt(D),\n\t\t\t\t\t\tR = b + (b < 0 ? -Q : Q);\n\t\t\t\t\tif (R === 0) {\n\t\t\t\t\t\tx1 = c / a;\n\t\t\t\t\t\tx2 = -x1;\n\t\t\t\t\t} else {\n\t\t\t\t\t\tx1 = R / a;\n\t\t\t\t\t\tx2 = c / R;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tvar count = 0,\n\t\t\t\tboundless = min == null,\n\t\t\t\tminB = min - EPSILON,\n\t\t\t\tmaxB = max + EPSILON;\n\t\t\tif (isFinite(x1) && (boundless || x1 > minB && x1 < maxB))\n\t\t\t\troots[count++] = boundless ? x1 : clamp(x1, min, max);\n\t\t\tif (x2 !== x1\n\t\t\t\t\t&& isFinite(x2) && (boundless || x2 > minB && x2 < maxB))\n\t\t\t\troots[count++] = boundless ? x2 : clamp(x2, min, max);\n\t\t\treturn count;\n\t\t},\n\n\t\tsolveCubic: function(a, b, c, d, roots, min, max) {\n\t\t\tvar f = getNormalizationFactor(abs(a), abs(b), abs(c), abs(d)),\n\t\t\t\tx, b1, c2, qd, q;\n\t\t\tif (f) {\n\t\t\t\ta *= f;\n\t\t\t\tb *= f;\n\t\t\t\tc *= f;\n\t\t\t\td *= f;\n\t\t\t}\n\n\t\t\tfunction evaluate(x0) {\n\t\t\t\tx = x0;\n\t\t\t\tvar tmp = a * x;\n\t\t\t\tb1 = tmp + b;\n\t\t\t\tc2 = b1 * x + c;\n\t\t\t\tqd = (tmp + b1) * x + c2;\n\t\t\t\tq = c2 * x + d;\n\t\t\t}\n\n\t\t\tif (abs(a) < EPSILON) {\n\t\t\t\ta = b;\n\t\t\t\tb1 = c;\n\t\t\t\tc2 = d;\n\t\t\t\tx = Infinity;\n\t\t\t} else if (abs(d) < EPSILON) {\n\t\t\t\tb1 = b;\n\t\t\t\tc2 = c;\n\t\t\t\tx = 0;\n\t\t\t} else {\n\t\t\t\tevaluate(-(b / a) / 3);\n\t\t\t\tvar t = q / a,\n\t\t\t\t\tr = pow(abs(t), 1/3),\n\t\t\t\t\ts = t < 0 ? -1 : 1,\n\t\t\t\t\ttd = -qd / a,\n\t\t\t\t\trd = td > 0 ? 1.324717957244746 * Math.max(r, sqrt(td)) : r,\n\t\t\t\t\tx0 = x - s * rd;\n\t\t\t\tif (x0 !== x) {\n\t\t\t\t\tdo {\n\t\t\t\t\t\tevaluate(x0);\n\t\t\t\t\t\tx0 = qd === 0 ? x : x - q / qd / (1 + MACHINE_EPSILON);\n\t\t\t\t\t} while (s * x0 > s * x);\n\t\t\t\t\tif (abs(a) * x * x > abs(d / x)) {\n\t\t\t\t\t\tc2 = -d / x;\n\t\t\t\t\t\tb1 = (c2 - c) / x;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tvar count = Numerical.solveQuadratic(a, b1, c2, roots, min, max),\n\t\t\t\tboundless = min == null;\n\t\t\tif (isFinite(x) && (count === 0\n\t\t\t\t\t|| count > 0 && x !== roots[0] && x !== roots[1])\n\t\t\t\t\t&& (boundless || x > min - EPSILON && x < max + EPSILON))\n\t\t\t\troots[count++] = boundless ? x : clamp(x, min, max);\n\t\t\treturn count;\n\t\t}\n\t};\n};\n\nvar UID = {\n\t_id: 1,\n\t_pools: {},\n\n\tget: function(name) {\n\t\tif (name) {\n\t\t\tvar pool = this._pools[name];\n\t\t\tif (!pool)\n\t\t\t\tpool = this._pools[name] = { _id: 1 };\n\t\t\treturn pool._id++;\n\t\t} else {\n\t\t\treturn this._id++;\n\t\t}\n\t}\n};\n\nvar Point = Base.extend({\n\t_class: 'Point',\n\t_readIndex: true,\n\n\tinitialize: function Point(arg0, arg1) {\n\t\tvar type = typeof arg0,\n\t\t\treading = this.__read,\n\t\t\tread = 0;\n\t\tif (type === 'number') {\n\t\t\tvar hasY = typeof arg1 === 'number';\n\t\t\tthis._set(arg0, hasY ? arg1 : arg0);\n\t\t\tif (reading)\n\t\t\t\tread = hasY ? 2 : 1;\n\t\t} else if (type === 'undefined' || arg0 === null) {\n\t\t\tthis._set(0, 0);\n\t\t\tif (reading)\n\t\t\t\tread = arg0 === null ? 1 : 0;\n\t\t} else {\n\t\t\tvar obj = type === 'string' ? arg0.split(/[\\s,]+/) || [] : arg0;\n\t\t\tread = 1;\n\t\t\tif (Array.isArray(obj)) {\n\t\t\t\tthis._set(+obj[0], +(obj.length > 1 ? obj[1] : obj[0]));\n\t\t\t} else if ('x' in obj) {\n\t\t\t\tthis._set(obj.x || 0, obj.y || 0);\n\t\t\t} else if ('width' in obj) {\n\t\t\t\tthis._set(obj.width || 0, obj.height || 0);\n\t\t\t} else if ('angle' in obj) {\n\t\t\t\tthis._set(obj.length || 0, 0);\n\t\t\t\tthis.setAngle(obj.angle || 0);\n\t\t\t} else {\n\t\t\t\tthis._set(0, 0);\n\t\t\t\tread = 0;\n\t\t\t}\n\t\t}\n\t\tif (reading)\n\t\t\tthis.__read = read;\n\t\treturn this;\n\t},\n\n\tset: '#initialize',\n\n\t_set: function(x, y) {\n\t\tthis.x = x;\n\t\tthis.y = y;\n\t\treturn this;\n\t},\n\n\tequals: function(point) {\n\t\treturn this === point || point\n\t\t\t\t&& (this.x === point.x && this.y === point.y\n\t\t\t\t\t|| Array.isArray(point)\n\t\t\t\t\t\t&& this.x === point[0] && this.y === point[1])\n\t\t\t\t|| false;\n\t},\n\n\tclone: function() {\n\t\treturn new Point(this.x, this.y);\n\t},\n\n\ttoString: function() {\n\t\tvar f = Formatter.instance;\n\t\treturn '{ x: ' + f.number(this.x) + ', y: ' + f.number(this.y) + ' }';\n\t},\n\n\t_serialize: function(options) {\n\t\tvar f = options.formatter;\n\t\treturn [f.number(this.x), f.number(this.y)];\n\t},\n\n\tgetLength: function() {\n\t\treturn Math.sqrt(this.x * this.x + this.y * this.y);\n\t},\n\n\tsetLength: function(length) {\n\t\tif (this.isZero()) {\n\t\t\tvar angle = this._angle || 0;\n\t\t\tthis._set(\n\t\t\t\tMath.cos(angle) * length,\n\t\t\t\tMath.sin(angle) * length\n\t\t\t);\n\t\t} else {\n\t\t\tvar scale = length / this.getLength();\n\t\t\tif (Numerical.isZero(scale))\n\t\t\t\tthis.getAngle();\n\t\t\tthis._set(\n\t\t\t\tthis.x * scale,\n\t\t\t\tthis.y * scale\n\t\t\t);\n\t\t}\n\t},\n\tgetAngle: function() {\n\t\treturn this.getAngleInRadians.apply(this, arguments) * 180 / Math.PI;\n\t},\n\n\tsetAngle: function(angle) {\n\t\tthis.setAngleInRadians.call(this, angle * Math.PI / 180);\n\t},\n\n\tgetAngleInDegrees: '#getAngle',\n\tsetAngleInDegrees: '#setAngle',\n\n\tgetAngleInRadians: function() {\n\t\tif (!arguments.length) {\n\t\t\treturn this.isZero()\n\t\t\t\t\t? this._angle || 0\n\t\t\t\t\t: this._angle = Math.atan2(this.y, this.x);\n\t\t} else {\n\t\t\tvar point = Point.read(arguments),\n\t\t\t\tdiv = this.getLength() * point.getLength();\n\t\t\tif (Numerical.isZero(div)) {\n\t\t\t\treturn NaN;\n\t\t\t} else {\n\t\t\t\tvar a = this.dot(point) / div;\n\t\t\t\treturn Math.acos(a < -1 ? -1 : a > 1 ? 1 : a);\n\t\t\t}\n\t\t}\n\t},\n\n\tsetAngleInRadians: function(angle) {\n\t\tthis._angle = angle;\n\t\tif (!this.isZero()) {\n\t\t\tvar length = this.getLength();\n\t\t\tthis._set(\n\t\t\t\tMath.cos(angle) * length,\n\t\t\t\tMath.sin(angle) * length\n\t\t\t);\n\t\t}\n\t},\n\n\tgetQuadrant: function() {\n\t\treturn this.x >= 0 ? this.y >= 0 ? 1 : 4 : this.y >= 0 ? 2 : 3;\n\t}\n}, {\n\tbeans: false,\n\n\tgetDirectedAngle: function() {\n\t\tvar point = Point.read(arguments);\n\t\treturn Math.atan2(this.cross(point), this.dot(point)) * 180 / Math.PI;\n\t},\n\n\tgetDistance: function() {\n\t\tvar args = arguments,\n\t\t\tpoint = Point.read(args),\n\t\t\tx = point.x - this.x,\n\t\t\ty = point.y - this.y,\n\t\t\td = x * x + y * y,\n\t\t\tsquared = Base.read(args);\n\t\treturn squared ? d : Math.sqrt(d);\n\t},\n\n\tnormalize: function(length) {\n\t\tif (length === undefined)\n\t\t\tlength = 1;\n\t\tvar current = this.getLength(),\n\t\t\tscale = current !== 0 ? length / current : 0,\n\t\t\tpoint = new Point(this.x * scale, this.y * scale);\n\t\tif (scale >= 0)\n\t\t\tpoint._angle = this._angle;\n\t\treturn point;\n\t},\n\n\trotate: function(angle, center) {\n\t\tif (angle === 0)\n\t\t\treturn this.clone();\n\t\tangle = angle * Math.PI / 180;\n\t\tvar point = center ? this.subtract(center) : this,\n\t\t\tsin = Math.sin(angle),\n\t\t\tcos = Math.cos(angle);\n\t\tpoint = new Point(\n\t\t\tpoint.x * cos - point.y * sin,\n\t\t\tpoint.x * sin + point.y * cos\n\t\t);\n\t\treturn center ? point.add(center) : point;\n\t},\n\n\ttransform: function(matrix) {\n\t\treturn matrix ? matrix._transformPoint(this) : this;\n\t},\n\n\tadd: function() {\n\t\tvar point = Point.read(arguments);\n\t\treturn new Point(this.x + point.x, this.y + point.y);\n\t},\n\n\tsubtract: function() {\n\t\tvar point = Point.read(arguments);\n\t\treturn new Point(this.x - point.x, this.y - point.y);\n\t},\n\n\tmultiply: function() {\n\t\tvar point = Point.read(arguments);\n\t\treturn new Point(this.x * point.x, this.y * point.y);\n\t},\n\n\tdivide: function() {\n\t\tvar point = Point.read(arguments);\n\t\treturn new Point(this.x / point.x, this.y / point.y);\n\t},\n\n\tmodulo: function() {\n\t\tvar point = Point.read(arguments);\n\t\treturn new Point(this.x % point.x, this.y % point.y);\n\t},\n\n\tnegate: function() {\n\t\treturn new Point(-this.x, -this.y);\n\t},\n\n\tisInside: function() {\n\t\treturn Rectangle.read(arguments).contains(this);\n\t},\n\n\tisClose: function() {\n\t\tvar args = arguments,\n\t\t\tpoint = Point.read(args),\n\t\t\ttolerance = Base.read(args);\n\t\treturn this.getDistance(point) <= tolerance;\n\t},\n\n\tisCollinear: function() {\n\t\tvar point = Point.read(arguments);\n\t\treturn Point.isCollinear(this.x, this.y, point.x, point.y);\n\t},\n\n\tisColinear: '#isCollinear',\n\n\tisOrthogonal: function() {\n\t\tvar point = Point.read(arguments);\n\t\treturn Point.isOrthogonal(this.x, this.y, point.x, point.y);\n\t},\n\n\tisZero: function() {\n\t\tvar isZero = Numerical.isZero;\n\t\treturn isZero(this.x) && isZero(this.y);\n\t},\n\n\tisNaN: function() {\n\t\treturn isNaN(this.x) || isNaN(this.y);\n\t},\n\n\tisInQuadrant: function(q) {\n\t\treturn this.x * (q > 1 && q < 4 ? -1 : 1) >= 0\n\t\t\t&& this.y * (q > 2 ? -1 : 1) >= 0;\n\t},\n\n\tdot: function() {\n\t\tvar point = Point.read(arguments);\n\t\treturn this.x * point.x + this.y * point.y;\n\t},\n\n\tcross: function() {\n\t\tvar point = Point.read(arguments);\n\t\treturn this.x * point.y - this.y * point.x;\n\t},\n\n\tproject: function() {\n\t\tvar point = Point.read(arguments),\n\t\t\tscale = point.isZero() ? 0 : this.dot(point) / point.dot(point);\n\t\treturn new Point(\n\t\t\tpoint.x * scale,\n\t\t\tpoint.y * scale\n\t\t);\n\t},\n\n\tstatics: {\n\t\tmin: function() {\n\t\t\tvar args = arguments,\n\t\t\t\tpoint1 = Point.read(args),\n\t\t\t\tpoint2 = Point.read(args);\n\t\t\treturn new Point(\n\t\t\t\tMath.min(point1.x, point2.x),\n\t\t\t\tMath.min(point1.y, point2.y)\n\t\t\t);\n\t\t},\n\n\t\tmax: function() {\n\t\t\tvar args = arguments,\n\t\t\t\tpoint1 = Point.read(args),\n\t\t\t\tpoint2 = Point.read(args);\n\t\t\treturn new Point(\n\t\t\t\tMath.max(point1.x, point2.x),\n\t\t\t\tMath.max(point1.y, point2.y)\n\t\t\t);\n\t\t},\n\n\t\trandom: function() {\n\t\t\treturn new Point(Math.random(), Math.random());\n\t\t},\n\n\t\tisCollinear: function(x1, y1, x2, y2) {\n\t\t\treturn Math.abs(x1 * y2 - y1 * x2)\n\t\t\t\t\t<= Math.sqrt((x1 * x1 + y1 * y1) * (x2 * x2 + y2 * y2))\n\t\t\t\t\t\t* 1e-8;\n\t\t},\n\n\t\tisOrthogonal: function(x1, y1, x2, y2) {\n\t\t\treturn Math.abs(x1 * x2 + y1 * y2)\n\t\t\t\t\t<= Math.sqrt((x1 * x1 + y1 * y1) * (x2 * x2 + y2 * y2))\n\t\t\t\t\t\t* 1e-8;\n\t\t}\n\t}\n}, Base.each(['round', 'ceil', 'floor', 'abs'], function(key) {\n\tvar op = Math[key];\n\tthis[key] = function() {\n\t\treturn new Point(op(this.x), op(this.y));\n\t};\n}, {}));\n\nvar LinkedPoint = Point.extend({\n\tinitialize: function Point(x, y, owner, setter) {\n\t\tthis._x = x;\n\t\tthis._y = y;\n\t\tthis._owner = owner;\n\t\tthis._setter = setter;\n\t},\n\n\t_set: function(x, y, _dontNotify) {\n\t\tthis._x = x;\n\t\tthis._y = y;\n\t\tif (!_dontNotify)\n\t\t\tthis._owner[this._setter](this);\n\t\treturn this;\n\t},\n\n\tgetX: function() {\n\t\treturn this._x;\n\t},\n\n\tsetX: function(x) {\n\t\tthis._x = x;\n\t\tthis._owner[this._setter](this);\n\t},\n\n\tgetY: function() {\n\t\treturn this._y;\n\t},\n\n\tsetY: function(y) {\n\t\tthis._y = y;\n\t\tthis._owner[this._setter](this);\n\t},\n\n\tisSelected: function() {\n\t\treturn !!(this._owner._selection & this._getSelection());\n\t},\n\n\tsetSelected: function(selected) {\n\t\tthis._owner._changeSelection(this._getSelection(), selected);\n\t},\n\n\t_getSelection: function() {\n\t\treturn this._setter === 'setPosition' ? 4 : 0;\n\t}\n});\n\nvar Size = Base.extend({\n\t_class: 'Size',\n\t_readIndex: true,\n\n\tinitialize: function Size(arg0, arg1) {\n\t\tvar type = typeof arg0,\n\t\t\treading = this.__read,\n\t\t\tread = 0;\n\t\tif (type === 'number') {\n\t\t\tvar hasHeight = typeof arg1 === 'number';\n\t\t\tthis._set(arg0, hasHeight ? arg1 : arg0);\n\t\t\tif (reading)\n\t\t\t\tread = hasHeight ? 2 : 1;\n\t\t} else if (type === 'undefined' || arg0 === null) {\n\t\t\tthis._set(0, 0);\n\t\t\tif (reading)\n\t\t\t\tread = arg0 === null ? 1 : 0;\n\t\t} else {\n\t\t\tvar obj = type === 'string' ? arg0.split(/[\\s,]+/) || [] : arg0;\n\t\t\tread = 1;\n\t\t\tif (Array.isArray(obj)) {\n\t\t\t\tthis._set(+obj[0], +(obj.length > 1 ? obj[1] : obj[0]));\n\t\t\t} else if ('width' in obj) {\n\t\t\t\tthis._set(obj.width || 0, obj.height || 0);\n\t\t\t} else if ('x' in obj) {\n\t\t\t\tthis._set(obj.x || 0, obj.y || 0);\n\t\t\t} else {\n\t\t\t\tthis._set(0, 0);\n\t\t\t\tread = 0;\n\t\t\t}\n\t\t}\n\t\tif (reading)\n\t\t\tthis.__read = read;\n\t\treturn this;\n\t},\n\n\tset: '#initialize',\n\n\t_set: function(width, height) {\n\t\tthis.width = width;\n\t\tthis.height = height;\n\t\treturn this;\n\t},\n\n\tequals: function(size) {\n\t\treturn size === this || size && (this.width === size.width\n\t\t\t\t&& this.height === size.height\n\t\t\t\t|| Array.isArray(size) && this.width === size[0]\n\t\t\t\t\t&& this.height === size[1]) || false;\n\t},\n\n\tclone: function() {\n\t\treturn new Size(this.width, this.height);\n\t},\n\n\ttoString: function() {\n\t\tvar f = Formatter.instance;\n\t\treturn '{ width: ' + f.number(this.width)\n\t\t\t\t+ ', height: ' + f.number(this.height) + ' }';\n\t},\n\n\t_serialize: function(options) {\n\t\tvar f = options.formatter;\n\t\treturn [f.number(this.width),\n\t\t\t\tf.number(this.height)];\n\t},\n\n\tadd: function() {\n\t\tvar size = Size.read(arguments);\n\t\treturn new Size(this.width + size.width, this.height + size.height);\n\t},\n\n\tsubtract: function() {\n\t\tvar size = Size.read(arguments);\n\t\treturn new Size(this.width - size.width, this.height - size.height);\n\t},\n\n\tmultiply: function() {\n\t\tvar size = Size.read(arguments);\n\t\treturn new Size(this.width * size.width, this.height * size.height);\n\t},\n\n\tdivide: function() {\n\t\tvar size = Size.read(arguments);\n\t\treturn new Size(this.width / size.width, this.height / size.height);\n\t},\n\n\tmodulo: function() {\n\t\tvar size = Size.read(arguments);\n\t\treturn new Size(this.width % size.width, this.height % size.height);\n\t},\n\n\tnegate: function() {\n\t\treturn new Size(-this.width, -this.height);\n\t},\n\n\tisZero: function() {\n\t\tvar isZero = Numerical.isZero;\n\t\treturn isZero(this.width) && isZero(this.height);\n\t},\n\n\tisNaN: function() {\n\t\treturn isNaN(this.width) || isNaN(this.height);\n\t},\n\n\tstatics: {\n\t\tmin: function(size1, size2) {\n\t\t\treturn new Size(\n\t\t\t\tMath.min(size1.width, size2.width),\n\t\t\t\tMath.min(size1.height, size2.height));\n\t\t},\n\n\t\tmax: function(size1, size2) {\n\t\t\treturn new Size(\n\t\t\t\tMath.max(size1.width, size2.width),\n\t\t\t\tMath.max(size1.height, size2.height));\n\t\t},\n\n\t\trandom: function() {\n\t\t\treturn new Size(Math.random(), Math.random());\n\t\t}\n\t}\n}, Base.each(['round', 'ceil', 'floor', 'abs'], function(key) {\n\tvar op = Math[key];\n\tthis[key] = function() {\n\t\treturn new Size(op(this.width), op(this.height));\n\t};\n}, {}));\n\nvar LinkedSize = Size.extend({\n\tinitialize: function Size(width, height, owner, setter) {\n\t\tthis._width = width;\n\t\tthis._height = height;\n\t\tthis._owner = owner;\n\t\tthis._setter = setter;\n\t},\n\n\t_set: function(width, height, _dontNotify) {\n\t\tthis._width = width;\n\t\tthis._height = height;\n\t\tif (!_dontNotify)\n\t\t\tthis._owner[this._setter](this);\n\t\treturn this;\n\t},\n\n\tgetWidth: function() {\n\t\treturn this._width;\n\t},\n\n\tsetWidth: function(width) {\n\t\tthis._width = width;\n\t\tthis._owner[this._setter](this);\n\t},\n\n\tgetHeight: function() {\n\t\treturn this._height;\n\t},\n\n\tsetHeight: function(height) {\n\t\tthis._height = height;\n\t\tthis._owner[this._setter](this);\n\t}\n});\n\nvar Rectangle = Base.extend({\n\t_class: 'Rectangle',\n\t_readIndex: true,\n\tbeans: true,\n\n\tinitialize: function Rectangle(arg0, arg1, arg2, arg3) {\n\t\tvar args = arguments,\n\t\t\ttype = typeof arg0,\n\t\t\tread;\n\t\tif (type === 'number') {\n\t\t\tthis._set(arg0, arg1, arg2, arg3);\n\t\t\tread = 4;\n\t\t} else if (type === 'undefined' || arg0 === null) {\n\t\t\tthis._set(0, 0, 0, 0);\n\t\t\tread = arg0 === null ? 1 : 0;\n\t\t} else if (args.length === 1) {\n\t\t\tif (Array.isArray(arg0)) {\n\t\t\t\tthis._set.apply(this, arg0);\n\t\t\t\tread = 1;\n\t\t\t} else if (arg0.x !== undefined || arg0.width !== undefined) {\n\t\t\t\tthis._set(arg0.x || 0, arg0.y || 0,\n\t\t\t\t\t\targ0.width || 0, arg0.height || 0);\n\t\t\t\tread = 1;\n\t\t\t} else if (arg0.from === undefined && arg0.to === undefined) {\n\t\t\t\tthis._set(0, 0, 0, 0);\n\t\t\t\tif (Base.readSupported(args, this)) {\n\t\t\t\t\tread = 1;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tif (read === undefined) {\n\t\t\tvar frm = Point.readNamed(args, 'from'),\n\t\t\t\tnext = Base.peek(args),\n\t\t\t\tx = frm.x,\n\t\t\t\ty = frm.y,\n\t\t\t\twidth,\n\t\t\t\theight;\n\t\t\tif (next && next.x !== undefined || Base.hasNamed(args, 'to')) {\n\t\t\t\tvar to = Point.readNamed(args, 'to');\n\t\t\t\twidth = to.x - x;\n\t\t\t\theight = to.y - y;\n\t\t\t\tif (width < 0) {\n\t\t\t\t\tx = to.x;\n\t\t\t\t\twidth = -width;\n\t\t\t\t}\n\t\t\t\tif (height < 0) {\n\t\t\t\t\ty = to.y;\n\t\t\t\t\theight = -height;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tvar size = Size.read(args);\n\t\t\t\twidth = size.width;\n\t\t\t\theight = size.height;\n\t\t\t}\n\t\t\tthis._set(x, y, width, height);\n\t\t\tread = args.__index;\n\t\t}\n\t\tvar filtered = args.__filtered;\n\t\tif (filtered)\n\t\t\tthis.__filtered = filtered;\n\t\tif (this.__read)\n\t\t\tthis.__read = read;\n\t\treturn this;\n\t},\n\n\tset: '#initialize',\n\n\t_set: function(x, y, width, height) {\n\t\tthis.x = x;\n\t\tthis.y = y;\n\t\tthis.width = width;\n\t\tthis.height = height;\n\t\treturn this;\n\t},\n\n\tclone: function() {\n\t\treturn new Rectangle(this.x, this.y, this.width, this.height);\n\t},\n\n\tequals: function(rect) {\n\t\tvar rt = Base.isPlainValue(rect)\n\t\t\t\t? Rectangle.read(arguments)\n\t\t\t\t: rect;\n\t\treturn rt === this\n\t\t\t\t|| rt && this.x === rt.x && this.y === rt.y\n\t\t\t\t\t&& this.width === rt.width && this.height === rt.height\n\t\t\t\t|| false;\n\t},\n\n\ttoString: function() {\n\t\tvar f = Formatter.instance;\n\t\treturn '{ x: ' + f.number(this.x)\n\t\t\t\t+ ', y: ' + f.number(this.y)\n\t\t\t\t+ ', width: ' + f.number(this.width)\n\t\t\t\t+ ', height: ' + f.number(this.height)\n\t\t\t\t+ ' }';\n\t},\n\n\t_serialize: function(options) {\n\t\tvar f = options.formatter;\n\t\treturn [f.number(this.x),\n\t\t\t\tf.number(this.y),\n\t\t\t\tf.number(this.width),\n\t\t\t\tf.number(this.height)];\n\t},\n\n\tgetPoint: function(_dontLink) {\n\t\tvar ctor = _dontLink ? Point : LinkedPoint;\n\t\treturn new ctor(this.x, this.y, this, 'setPoint');\n\t},\n\n\tsetPoint: function() {\n\t\tvar point = Point.read(arguments);\n\t\tthis.x = point.x;\n\t\tthis.y = point.y;\n\t},\n\n\tgetSize: function(_dontLink) {\n\t\tvar ctor = _dontLink ? Size : LinkedSize;\n\t\treturn new ctor(this.width, this.height, this, 'setSize');\n\t},\n\n\t_fw: 1,\n\t_fh: 1,\n\n\tsetSize: function() {\n\t\tvar size = Size.read(arguments),\n\t\t\tsx = this._sx,\n\t\t\tsy = this._sy,\n\t\t\tw = size.width,\n\t\t\th = size.height;\n\t\tif (sx) {\n\t\t\tthis.x += (this.width - w) * sx;\n\t\t}\n\t\tif (sy) {\n\t\t\tthis.y += (this.height - h) * sy;\n\t\t}\n\t\tthis.width = w;\n\t\tthis.height = h;\n\t\tthis._fw = this._fh = 1;\n\t},\n\n\tgetLeft: function() {\n\t\treturn this.x;\n\t},\n\n\tsetLeft: function(left) {\n\t\tif (!this._fw) {\n\t\t\tvar amount = left - this.x;\n\t\t\tthis.width -= this._sx === 0.5 ? amount * 2 : amount;\n\t\t}\n\t\tthis.x = left;\n\t\tthis._sx = this._fw = 0;\n\t},\n\n\tgetTop: function() {\n\t\treturn this.y;\n\t},\n\n\tsetTop: function(top) {\n\t\tif (!this._fh) {\n\t\t\tvar amount = top - this.y;\n\t\t\tthis.height -= this._sy === 0.5 ? amount * 2 : amount;\n\t\t}\n\t\tthis.y = top;\n\t\tthis._sy = this._fh = 0;\n\t},\n\n\tgetRight: function() {\n\t\treturn this.x + this.width;\n\t},\n\n\tsetRight: function(right) {\n\t\tif (!this._fw) {\n\t\t\tvar amount = right - this.x;\n\t\t\tthis.width = this._sx === 0.5 ? amount * 2 : amount;\n\t\t}\n\t\tthis.x = right - this.width;\n\t\tthis._sx = 1;\n\t\tthis._fw = 0;\n\t},\n\n\tgetBottom: function() {\n\t\treturn this.y + this.height;\n\t},\n\n\tsetBottom: function(bottom) {\n\t\tif (!this._fh) {\n\t\t\tvar amount = bottom - this.y;\n\t\t\tthis.height = this._sy === 0.5 ? amount * 2 : amount;\n\t\t}\n\t\tthis.y = bottom - this.height;\n\t\tthis._sy = 1;\n\t\tthis._fh = 0;\n\t},\n\n\tgetCenterX: function() {\n\t\treturn this.x + this.width / 2;\n\t},\n\n\tsetCenterX: function(x) {\n\t\tif (this._fw || this._sx === 0.5) {\n\t\t\tthis.x = x - this.width / 2;\n\t\t} else {\n\t\t\tif (this._sx) {\n\t\t\t\tthis.x += (x - this.x) * 2 * this._sx;\n\t\t\t}\n\t\t\tthis.width = (x - this.x) * 2;\n\t\t}\n\t\tthis._sx = 0.5;\n\t\tthis._fw = 0;\n\t},\n\n\tgetCenterY: function() {\n\t\treturn this.y + this.height / 2;\n\t},\n\n\tsetCenterY: function(y) {\n\t\tif (this._fh || this._sy === 0.5) {\n\t\t\tthis.y = y - this.height / 2;\n\t\t} else {\n\t\t\tif (this._sy) {\n\t\t\t\tthis.y += (y - this.y) * 2 * this._sy;\n\t\t\t}\n\t\t\tthis.height = (y - this.y) * 2;\n\t\t}\n\t\tthis._sy = 0.5;\n\t\tthis._fh = 0;\n\t},\n\n\tgetCenter: function(_dontLink) {\n\t\tvar ctor = _dontLink ? Point : LinkedPoint;\n\t\treturn new ctor(this.getCenterX(), this.getCenterY(), this, 'setCenter');\n\t},\n\n\tsetCenter: function() {\n\t\tvar point = Point.read(arguments);\n\t\tthis.setCenterX(point.x);\n\t\tthis.setCenterY(point.y);\n\t\treturn this;\n\t},\n\n\tgetArea: function() {\n\t\treturn this.width * this.height;\n\t},\n\n\tisEmpty: function() {\n\t\treturn this.width === 0 || this.height === 0;\n\t},\n\n\tcontains: function(arg) {\n\t\treturn arg && arg.width !== undefined\n\t\t\t\t|| (Array.isArray(arg) ? arg : arguments).length === 4\n\t\t\t\t? this._containsRectangle(Rectangle.read(arguments))\n\t\t\t\t: this._containsPoint(Point.read(arguments));\n\t},\n\n\t_containsPoint: function(point) {\n\t\tvar x = point.x,\n\t\t\ty = point.y;\n\t\treturn x >= this.x && y >= this.y\n\t\t\t\t&& x <= this.x + this.width\n\t\t\t\t&& y <= this.y + this.height;\n\t},\n\n\t_containsRectangle: function(rect) {\n\t\tvar x = rect.x,\n\t\t\ty = rect.y;\n\t\treturn x >= this.x && y >= this.y\n\t\t\t\t&& x + rect.width <= this.x + this.width\n\t\t\t\t&& y + rect.height <= this.y + this.height;\n\t},\n\n\tintersects: function() {\n\t\tvar rect = Rectangle.read(arguments),\n\t\t\tepsilon = Base.read(arguments) || 0;\n\t\treturn rect.x + rect.width > this.x - epsilon\n\t\t\t\t&& rect.y + rect.height > this.y - epsilon\n\t\t\t\t&& rect.x < this.x + this.width + epsilon\n\t\t\t\t&& rect.y < this.y + this.height + epsilon;\n\t},\n\n\tintersect: function() {\n\t\tvar rect = Rectangle.read(arguments),\n\t\t\tx1 = Math.max(this.x, rect.x),\n\t\t\ty1 = Math.max(this.y, rect.y),\n\t\t\tx2 = Math.min(this.x + this.width, rect.x + rect.width),\n\t\t\ty2 = Math.min(this.y + this.height, rect.y + rect.height);\n\t\treturn new Rectangle(x1, y1, x2 - x1, y2 - y1);\n\t},\n\n\tunite: function() {\n\t\tvar rect = Rectangle.read(arguments),\n\t\t\tx1 = Math.min(this.x, rect.x),\n\t\t\ty1 = Math.min(this.y, rect.y),\n\t\t\tx2 = Math.max(this.x + this.width, rect.x + rect.width),\n\t\t\ty2 = Math.max(this.y + this.height, rect.y + rect.height);\n\t\treturn new Rectangle(x1, y1, x2 - x1, y2 - y1);\n\t},\n\n\tinclude: function() {\n\t\tvar point = Point.read(arguments);\n\t\tvar x1 = Math.min(this.x, point.x),\n\t\t\ty1 = Math.min(this.y, point.y),\n\t\t\tx2 = Math.max(this.x + this.width, point.x),\n\t\t\ty2 = Math.max(this.y + this.height, point.y);\n\t\treturn new Rectangle(x1, y1, x2 - x1, y2 - y1);\n\t},\n\n\texpand: function() {\n\t\tvar amount = Size.read(arguments),\n\t\t\thor = amount.width,\n\t\t\tver = amount.height;\n\t\treturn new Rectangle(this.x - hor / 2, this.y - ver / 2,\n\t\t\t\tthis.width + hor, this.height + ver);\n\t},\n\n\tscale: function(hor, ver) {\n\t\treturn this.expand(this.width * hor - this.width,\n\t\t\t\tthis.height * (ver === undefined ? hor : ver) - this.height);\n\t}\n}, Base.each([\n\t\t['Top', 'Left'], ['Top', 'Right'],\n\t\t['Bottom', 'Left'], ['Bottom', 'Right'],\n\t\t['Left', 'Center'], ['Top', 'Center'],\n\t\t['Right', 'Center'], ['Bottom', 'Center']\n\t],\n\tfunction(parts, index) {\n\t\tvar part = parts.join(''),\n\t\t\txFirst = /^[RL]/.test(part);\n\t\tif (index >= 4)\n\t\t\tparts[1] += xFirst ? 'Y' : 'X';\n\t\tvar x = parts[xFirst ? 0 : 1],\n\t\t\ty = parts[xFirst ? 1 : 0],\n\t\t\tgetX = 'get' + x,\n\t\t\tgetY = 'get' + y,\n\t\t\tsetX = 'set' + x,\n\t\t\tsetY = 'set' + y,\n\t\t\tget = 'get' + part,\n\t\t\tset = 'set' + part;\n\t\tthis[get] = function(_dontLink) {\n\t\t\tvar ctor = _dontLink ? Point : LinkedPoint;\n\t\t\treturn new ctor(this[getX](), this[getY](), this, set);\n\t\t};\n\t\tthis[set] = function() {\n\t\t\tvar point = Point.read(arguments);\n\t\t\tthis[setX](point.x);\n\t\t\tthis[setY](point.y);\n\t\t};\n\t}, {\n\t\tbeans: true\n\t}\n));\n\nvar LinkedRectangle = Rectangle.extend({\n\tinitialize: function Rectangle(x, y, width, height, owner, setter) {\n\t\tthis._set(x, y, width, height, true);\n\t\tthis._owner = owner;\n\t\tthis._setter = setter;\n\t},\n\n\t_set: function(x, y, width, height, _dontNotify) {\n\t\tthis._x = x;\n\t\tthis._y = y;\n\t\tthis._width = width;\n\t\tthis._height = height;\n\t\tif (!_dontNotify)\n\t\t\tthis._owner[this._setter](this);\n\t\treturn this;\n\t}\n},\nnew function() {\n\tvar proto = Rectangle.prototype;\n\n\treturn Base.each(['x', 'y', 'width', 'height'], function(key) {\n\t\tvar part = Base.capitalize(key),\n\t\t\tinternal = '_' + key;\n\t\tthis['get' + part] = function() {\n\t\t\treturn this[internal];\n\t\t};\n\n\t\tthis['set' + part] = function(value) {\n\t\t\tthis[internal] = value;\n\t\t\tif (!this._dontNotify)\n\t\t\t\tthis._owner[this._setter](this);\n\t\t};\n\t}, Base.each(['Point', 'Size', 'Center',\n\t\t\t'Left', 'Top', 'Right', 'Bottom', 'CenterX', 'CenterY',\n\t\t\t'TopLeft', 'TopRight', 'BottomLeft', 'BottomRight',\n\t\t\t'LeftCenter', 'TopCenter', 'RightCenter', 'BottomCenter'],\n\t\tfunction(key) {\n\t\t\tvar name = 'set' + key;\n\t\t\tthis[name] = function() {\n\t\t\t\tthis._dontNotify = true;\n\t\t\t\tproto[name].apply(this, arguments);\n\t\t\t\tthis._dontNotify = false;\n\t\t\t\tthis._owner[this._setter](this);\n\t\t\t};\n\t\t}, {\n\t\t\tisSelected: function() {\n\t\t\t\treturn !!(this._owner._selection & 2);\n\t\t\t},\n\n\t\t\tsetSelected: function(selected) {\n\t\t\t\tvar owner = this._owner;\n\t\t\t\tif (owner._changeSelection) {\n\t\t\t\t\towner._changeSelection(2, selected);\n\t\t\t\t}\n\t\t\t}\n\t\t})\n\t);\n});\n\nvar Matrix = Base.extend({\n\t_class: 'Matrix',\n\n\tinitialize: function Matrix(arg, _dontNotify) {\n\t\tvar args = arguments,\n\t\t\tcount = args.length,\n\t\t\tok = true;\n\t\tif (count >= 6) {\n\t\t\tthis._set.apply(this, args);\n\t\t} else if (count === 1 || count === 2) {\n\t\t\tif (arg instanceof Matrix) {\n\t\t\t\tthis._set(arg._a, arg._b, arg._c, arg._d, arg._tx, arg._ty,\n\t\t\t\t\t\t_dontNotify);\n\t\t\t} else if (Array.isArray(arg)) {\n\t\t\t\tthis._set.apply(this,\n\t\t\t\t\t\t_dontNotify ? arg.concat([_dontNotify]) : arg);\n\t\t\t} else {\n\t\t\t\tok = false;\n\t\t\t}\n\t\t} else if (!count) {\n\t\t\tthis.reset();\n\t\t} else {\n\t\t\tok = false;\n\t\t}\n\t\tif (!ok) {\n\t\t\tthrow new Error('Unsupported matrix parameters');\n\t\t}\n\t\treturn this;\n\t},\n\n\tset: '#initialize',\n\n\t_set: function(a, b, c, d, tx, ty, _dontNotify) {\n\t\tthis._a = a;\n\t\tthis._b = b;\n\t\tthis._c = c;\n\t\tthis._d = d;\n\t\tthis._tx = tx;\n\t\tthis._ty = ty;\n\t\tif (!_dontNotify)\n\t\t\tthis._changed();\n\t\treturn this;\n\t},\n\n\t_serialize: function(options, dictionary) {\n\t\treturn Base.serialize(this.getValues(), options, true, dictionary);\n\t},\n\n\t_changed: function() {\n\t\tvar owner = this._owner;\n\t\tif (owner) {\n\t\t\tif (owner._applyMatrix) {\n\t\t\t\towner.transform(null, true);\n\t\t\t} else {\n\t\t\t\towner._changed(25);\n\t\t\t}\n\t\t}\n\t},\n\n\tclone: function() {\n\t\treturn new Matrix(this._a, this._b, this._c, this._d,\n\t\t\t\tthis._tx, this._ty);\n\t},\n\n\tequals: function(mx) {\n\t\treturn mx === this || mx && this._a === mx._a && this._b === mx._b\n\t\t\t\t&& this._c === mx._c && this._d === mx._d\n\t\t\t\t&& this._tx === mx._tx && this._ty === mx._ty;\n\t},\n\n\ttoString: function() {\n\t\tvar f = Formatter.instance;\n\t\treturn '[[' + [f.number(this._a), f.number(this._c),\n\t\t\t\t\tf.number(this._tx)].join(', ') + '], ['\n\t\t\t\t+ [f.number(this._b), f.number(this._d),\n\t\t\t\t\tf.number(this._ty)].join(', ') + ']]';\n\t},\n\n\treset: function(_dontNotify) {\n\t\tthis._a = this._d = 1;\n\t\tthis._b = this._c = this._tx = this._ty = 0;\n\t\tif (!_dontNotify)\n\t\t\tthis._changed();\n\t\treturn this;\n\t},\n\n\tapply: function(recursively, _setApplyMatrix) {\n\t\tvar owner = this._owner;\n\t\tif (owner) {\n\t\t\towner.transform(null, Base.pick(recursively, true), _setApplyMatrix);\n\t\t\treturn this.isIdentity();\n\t\t}\n\t\treturn false;\n\t},\n\n\ttranslate: function() {\n\t\tvar point = Point.read(arguments),\n\t\t\tx = point.x,\n\t\t\ty = point.y;\n\t\tthis._tx += x * this._a + y * this._c;\n\t\tthis._ty += x * this._b + y * this._d;\n\t\tthis._changed();\n\t\treturn this;\n\t},\n\n\tscale: function() {\n\t\tvar args = arguments,\n\t\t\tscale = Point.read(args),\n\t\t\tcenter = Point.read(args, 0, { readNull: true });\n\t\tif (center)\n\t\t\tthis.translate(center);\n\t\tthis._a *= scale.x;\n\t\tthis._b *= scale.x;\n\t\tthis._c *= scale.y;\n\t\tthis._d *= scale.y;\n\t\tif (center)\n\t\t\tthis.translate(center.negate());\n\t\tthis._changed();\n\t\treturn this;\n\t},\n\n\trotate: function(angle ) {\n\t\tangle *= Math.PI / 180;\n\t\tvar center = Point.read(arguments, 1),\n\t\t\tx = center.x,\n\t\t\ty = center.y,\n\t\t\tcos = Math.cos(angle),\n\t\t\tsin = Math.sin(angle),\n\t\t\ttx = x - x * cos + y * sin,\n\t\t\tty = y - x * sin - y * cos,\n\t\t\ta = this._a,\n\t\t\tb = this._b,\n\t\t\tc = this._c,\n\t\t\td = this._d;\n\t\tthis._a = cos * a + sin * c;\n\t\tthis._b = cos * b + sin * d;\n\t\tthis._c = -sin * a + cos * c;\n\t\tthis._d = -sin * b + cos * d;\n\t\tthis._tx += tx * a + ty * c;\n\t\tthis._ty += tx * b + ty * d;\n\t\tthis._changed();\n\t\treturn this;\n\t},\n\n\tshear: function() {\n\t\tvar args = arguments,\n\t\t\tshear = Point.read(args),\n\t\t\tcenter = Point.read(args, 0, { readNull: true });\n\t\tif (center)\n\t\t\tthis.translate(center);\n\t\tvar a = this._a,\n\t\t\tb = this._b;\n\t\tthis._a += shear.y * this._c;\n\t\tthis._b += shear.y * this._d;\n\t\tthis._c += shear.x * a;\n\t\tthis._d += shear.x * b;\n\t\tif (center)\n\t\t\tthis.translate(center.negate());\n\t\tthis._changed();\n\t\treturn this;\n\t},\n\n\tskew: function() {\n\t\tvar args = arguments,\n\t\t\tskew = Point.read(args),\n\t\t\tcenter = Point.read(args, 0, { readNull: true }),\n\t\t\ttoRadians = Math.PI / 180,\n\t\t\tshear = new Point(Math.tan(skew.x * toRadians),\n\t\t\t\tMath.tan(skew.y * toRadians));\n\t\treturn this.shear(shear, center);\n\t},\n\n\tappend: function(mx, _dontNotify) {\n\t\tif (mx) {\n\t\t\tvar a1 = this._a,\n\t\t\t\tb1 = this._b,\n\t\t\t\tc1 = this._c,\n\t\t\t\td1 = this._d,\n\t\t\t\ta2 = mx._a,\n\t\t\t\tb2 = mx._c,\n\t\t\t\tc2 = mx._b,\n\t\t\t\td2 = mx._d,\n\t\t\t\ttx2 = mx._tx,\n\t\t\t\tty2 = mx._ty;\n\t\t\tthis._a = a2 * a1 + c2 * c1;\n\t\t\tthis._c = b2 * a1 + d2 * c1;\n\t\t\tthis._b = a2 * b1 + c2 * d1;\n\t\t\tthis._d = b2 * b1 + d2 * d1;\n\t\t\tthis._tx += tx2 * a1 + ty2 * c1;\n\t\t\tthis._ty += tx2 * b1 + ty2 * d1;\n\t\t\tif (!_dontNotify)\n\t\t\t\tthis._changed();\n\t\t}\n\t\treturn this;\n\t},\n\n\tprepend: function(mx, _dontNotify) {\n\t\tif (mx) {\n\t\t\tvar a1 = this._a,\n\t\t\t\tb1 = this._b,\n\t\t\t\tc1 = this._c,\n\t\t\t\td1 = this._d,\n\t\t\t\ttx1 = this._tx,\n\t\t\t\tty1 = this._ty,\n\t\t\t\ta2 = mx._a,\n\t\t\t\tb2 = mx._c,\n\t\t\t\tc2 = mx._b,\n\t\t\t\td2 = mx._d,\n\t\t\t\ttx2 = mx._tx,\n\t\t\t\tty2 = mx._ty;\n\t\t\tthis._a = a2 * a1 + b2 * b1;\n\t\t\tthis._c = a2 * c1 + b2 * d1;\n\t\t\tthis._b = c2 * a1 + d2 * b1;\n\t\t\tthis._d = c2 * c1 + d2 * d1;\n\t\t\tthis._tx = a2 * tx1 + b2 * ty1 + tx2;\n\t\t\tthis._ty = c2 * tx1 + d2 * ty1 + ty2;\n\t\t\tif (!_dontNotify)\n\t\t\t\tthis._changed();\n\t\t}\n\t\treturn this;\n\t},\n\n\tappended: function(mx) {\n\t\treturn this.clone().append(mx);\n\t},\n\n\tprepended: function(mx) {\n\t\treturn this.clone().prepend(mx);\n\t},\n\n\tinvert: function() {\n\t\tvar a = this._a,\n\t\t\tb = this._b,\n\t\t\tc = this._c,\n\t\t\td = this._d,\n\t\t\ttx = this._tx,\n\t\t\tty = this._ty,\n\t\t\tdet = a * d - b * c,\n\t\t\tres = null;\n\t\tif (det && !isNaN(det) && isFinite(tx) && isFinite(ty)) {\n\t\t\tthis._a = d / det;\n\t\t\tthis._b = -b / det;\n\t\t\tthis._c = -c / det;\n\t\t\tthis._d = a / det;\n\t\t\tthis._tx = (c * ty - d * tx) / det;\n\t\t\tthis._ty = (b * tx - a * ty) / det;\n\t\t\tres = this;\n\t\t}\n\t\treturn res;\n\t},\n\n\tinverted: function() {\n\t\treturn this.clone().invert();\n\t},\n\n\tconcatenate: '#append',\n\tpreConcatenate: '#prepend',\n\tchain: '#appended',\n\n\t_shiftless: function() {\n\t\treturn new Matrix(this._a, this._b, this._c, this._d, 0, 0);\n\t},\n\n\t_orNullIfIdentity: function() {\n\t\treturn this.isIdentity() ? null : this;\n\t},\n\n\tisIdentity: function() {\n\t\treturn this._a === 1 && this._b === 0 && this._c === 0 && this._d === 1\n\t\t\t\t&& this._tx === 0 && this._ty === 0;\n\t},\n\n\tisInvertible: function() {\n\t\tvar det = this._a * this._d - this._c * this._b;\n\t\treturn det && !isNaN(det) && isFinite(this._tx) && isFinite(this._ty);\n\t},\n\n\tisSingular: function() {\n\t\treturn !this.isInvertible();\n\t},\n\n\ttransform: function( src, dst, count) {\n\t\treturn arguments.length < 3\n\t\t\t? this._transformPoint(Point.read(arguments))\n\t\t\t: this._transformCoordinates(src, dst, count);\n\t},\n\n\t_transformPoint: function(point, dest, _dontNotify) {\n\t\tvar x = point.x,\n\t\t\ty = point.y;\n\t\tif (!dest)\n\t\t\tdest = new Point();\n\t\treturn dest._set(\n\t\t\t\tx * this._a + y * this._c + this._tx,\n\t\t\t\tx * this._b + y * this._d + this._ty,\n\t\t\t\t_dontNotify);\n\t},\n\n\t_transformCoordinates: function(src, dst, count) {\n\t\tfor (var i = 0, max = 2 * count; i < max; i += 2) {\n\t\t\tvar x = src[i],\n\t\t\t\ty = src[i + 1];\n\t\t\tdst[i] = x * this._a + y * this._c + this._tx;\n\t\t\tdst[i + 1] = x * this._b + y * this._d + this._ty;\n\t\t}\n\t\treturn dst;\n\t},\n\n\t_transformCorners: function(rect) {\n\t\tvar x1 = rect.x,\n\t\t\ty1 = rect.y,\n\t\t\tx2 = x1 + rect.width,\n\t\t\ty2 = y1 + rect.height,\n\t\t\tcoords = [ x1, y1, x2, y1, x2, y2, x1, y2 ];\n\t\treturn this._transformCoordinates(coords, coords, 4);\n\t},\n\n\t_transformBounds: function(bounds, dest, _dontNotify) {\n\t\tvar coords = this._transformCorners(bounds),\n\t\t\tmin = coords.slice(0, 2),\n\t\t\tmax = min.slice();\n\t\tfor (var i = 2; i < 8; i++) {\n\t\t\tvar val = coords[i],\n\t\t\t\tj = i & 1;\n\t\t\tif (val < min[j]) {\n\t\t\t\tmin[j] = val;\n\t\t\t} else if (val > max[j]) {\n\t\t\t\tmax[j] = val;\n\t\t\t}\n\t\t}\n\t\tif (!dest)\n\t\t\tdest = new Rectangle();\n\t\treturn dest._set(min[0], min[1], max[0] - min[0], max[1] - min[1],\n\t\t\t\t_dontNotify);\n\t},\n\n\tinverseTransform: function() {\n\t\treturn this._inverseTransform(Point.read(arguments));\n\t},\n\n\t_inverseTransform: function(point, dest, _dontNotify) {\n\t\tvar a = this._a,\n\t\t\tb = this._b,\n\t\t\tc = this._c,\n\t\t\td = this._d,\n\t\t\ttx = this._tx,\n\t\t\tty = this._ty,\n\t\t\tdet = a * d - b * c,\n\t\t\tres = null;\n\t\tif (det && !isNaN(det) && isFinite(tx) && isFinite(ty)) {\n\t\t\tvar x = point.x - this._tx,\n\t\t\t\ty = point.y - this._ty;\n\t\t\tif (!dest)\n\t\t\t\tdest = new Point();\n\t\t\tres = dest._set(\n\t\t\t\t\t(x * d - y * c) / det,\n\t\t\t\t\t(y * a - x * b) / det,\n\t\t\t\t\t_dontNotify);\n\t\t}\n\t\treturn res;\n\t},\n\n\tdecompose: function() {\n\t\tvar a = this._a,\n\t\t\tb = this._b,\n\t\t\tc = this._c,\n\t\t\td = this._d,\n\t\t\tdet = a * d - b * c,\n\t\t\tsqrt = Math.sqrt,\n\t\t\tatan2 = Math.atan2,\n\t\t\tdegrees = 180 / Math.PI,\n\t\t\trotate,\n\t\t\tscale,\n\t\t\tskew;\n\t\tif (a !== 0 || b !== 0) {\n\t\t\tvar r = sqrt(a * a + b * b);\n\t\t\trotate = Math.acos(a / r) * (b > 0 ? 1 : -1);\n\t\t\tscale = [r, det / r];\n\t\t\tskew = [atan2(a * c + b * d, r * r), 0];\n\t\t} else if (c !== 0 || d !== 0) {\n\t\t\tvar s = sqrt(c * c + d * d);\n\t\t\trotate = Math.asin(c / s) * (d > 0 ? 1 : -1);\n\t\t\tscale = [det / s, s];\n\t\t\tskew = [0, atan2(a * c + b * d, s * s)];\n\t\t} else {\n\t\t\trotate = 0;\n\t\t\tskew = scale = [0, 0];\n\t\t}\n\t\treturn {\n\t\t\ttranslation: this.getTranslation(),\n\t\t\trotation: rotate * degrees,\n\t\t\tscaling: new Point(scale),\n\t\t\tskewing: new Point(skew[0] * degrees, skew[1] * degrees)\n\t\t};\n\t},\n\n\tgetValues: function() {\n\t\treturn [ this._a, this._b, this._c, this._d, this._tx, this._ty ];\n\t},\n\n\tgetTranslation: function() {\n\t\treturn new Point(this._tx, this._ty);\n\t},\n\n\tgetScaling: function() {\n\t\treturn this.decompose().scaling;\n\t},\n\n\tgetRotation: function() {\n\t\treturn this.decompose().rotation;\n\t},\n\n\tapplyToContext: function(ctx) {\n\t\tif (!this.isIdentity()) {\n\t\t\tctx.transform(this._a, this._b, this._c, this._d,\n\t\t\t\t\tthis._tx, this._ty);\n\t\t}\n\t}\n}, Base.each(['a', 'b', 'c', 'd', 'tx', 'ty'], function(key) {\n\tvar part = Base.capitalize(key),\n\t\tprop = '_' + key;\n\tthis['get' + part] = function() {\n\t\treturn this[prop];\n\t};\n\tthis['set' + part] = function(value) {\n\t\tthis[prop] = value;\n\t\tthis._changed();\n\t};\n}, {}));\n\nvar Line = Base.extend({\n\t_class: 'Line',\n\n\tinitialize: function Line(arg0, arg1, arg2, arg3, arg4) {\n\t\tvar asVector = false;\n\t\tif (arguments.length >= 4) {\n\t\t\tthis._px = arg0;\n\t\t\tthis._py = arg1;\n\t\t\tthis._vx = arg2;\n\t\t\tthis._vy = arg3;\n\t\t\tasVector = arg4;\n\t\t} else {\n\t\t\tthis._px = arg0.x;\n\t\t\tthis._py = arg0.y;\n\t\t\tthis._vx = arg1.x;\n\t\t\tthis._vy = arg1.y;\n\t\t\tasVector = arg2;\n\t\t}\n\t\tif (!asVector) {\n\t\t\tthis._vx -= this._px;\n\t\t\tthis._vy -= this._py;\n\t\t}\n\t},\n\n\tgetPoint: function() {\n\t\treturn new Point(this._px, this._py);\n\t},\n\n\tgetVector: function() {\n\t\treturn new Point(this._vx, this._vy);\n\t},\n\n\tgetLength: function() {\n\t\treturn this.getVector().getLength();\n\t},\n\n\tintersect: function(line, isInfinite) {\n\t\treturn Line.intersect(\n\t\t\t\tthis._px, this._py, this._vx, this._vy,\n\t\t\t\tline._px, line._py, line._vx, line._vy,\n\t\t\t\ttrue, isInfinite);\n\t},\n\n\tgetSide: function(point, isInfinite) {\n\t\treturn Line.getSide(\n\t\t\t\tthis._px, this._py, this._vx, this._vy,\n\t\t\t\tpoint.x, point.y, true, isInfinite);\n\t},\n\n\tgetDistance: function(point) {\n\t\treturn Math.abs(this.getSignedDistance(point));\n\t},\n\n\tgetSignedDistance: function(point) {\n\t\treturn Line.getSignedDistance(this._px, this._py, this._vx, this._vy,\n\t\t\t\tpoint.x, point.y, true);\n\t},\n\n\tisCollinear: function(line) {\n\t\treturn Point.isCollinear(this._vx, this._vy, line._vx, line._vy);\n\t},\n\n\tisOrthogonal: function(line) {\n\t\treturn Point.isOrthogonal(this._vx, this._vy, line._vx, line._vy);\n\t},\n\n\tstatics: {\n\t\tintersect: function(p1x, p1y, v1x, v1y, p2x, p2y, v2x, v2y, asVector,\n\t\t\t\tisInfinite) {\n\t\t\tif (!asVector) {\n\t\t\t\tv1x -= p1x;\n\t\t\t\tv1y -= p1y;\n\t\t\t\tv2x -= p2x;\n\t\t\t\tv2y -= p2y;\n\t\t\t}\n\t\t\tvar cross = v1x * v2y - v1y * v2x;\n\t\t\tif (!Numerical.isMachineZero(cross)) {\n\t\t\t\tvar dx = p1x - p2x,\n\t\t\t\t\tdy = p1y - p2y,\n\t\t\t\t\tu1 = (v2x * dy - v2y * dx) / cross,\n\t\t\t\t\tu2 = (v1x * dy - v1y * dx) / cross,\n\t\t\t\t\tepsilon = 1e-12,\n\t\t\t\t\tuMin = -epsilon,\n\t\t\t\t\tuMax = 1 + epsilon;\n\t\t\t\tif (isInfinite\n\t\t\t\t\t\t|| uMin < u1 && u1 < uMax && uMin < u2 && u2 < uMax) {\n\t\t\t\t\tif (!isInfinite) {\n\t\t\t\t\t\tu1 = u1 <= 0 ? 0 : u1 >= 1 ? 1 : u1;\n\t\t\t\t\t}\n\t\t\t\t\treturn new Point(\n\t\t\t\t\t\t\tp1x + u1 * v1x,\n\t\t\t\t\t\t\tp1y + u1 * v1y);\n\t\t\t\t}\n\t\t\t}\n\t\t},\n\n\t\tgetSide: function(px, py, vx, vy, x, y, asVector, isInfinite) {\n\t\t\tif (!asVector) {\n\t\t\t\tvx -= px;\n\t\t\t\tvy -= py;\n\t\t\t}\n\t\t\tvar v2x = x - px,\n\t\t\t\tv2y = y - py,\n\t\t\t\tccw = v2x * vy - v2y * vx;\n\t\t\tif (!isInfinite && Numerical.isMachineZero(ccw)) {\n\t\t\t\tccw = (v2x * vx + v2x * vx) / (vx * vx + vy * vy);\n\t\t\t\tif (ccw >= 0 && ccw <= 1)\n\t\t\t\t\tccw = 0;\n\t\t\t}\n\t\t\treturn ccw < 0 ? -1 : ccw > 0 ? 1 : 0;\n\t\t},\n\n\t\tgetSignedDistance: function(px, py, vx, vy, x, y, asVector) {\n\t\t\tif (!asVector) {\n\t\t\t\tvx -= px;\n\t\t\t\tvy -= py;\n\t\t\t}\n\t\t\t return vx === 0 ? (vy > 0 ? x - px : px - x)\n\t\t\t\t\t: vy === 0 ? (vx < 0 ? y - py : py - y)\n\t\t\t\t\t: ((x - px) * vy - (y - py) * vx) / (\n\t\t\t\t\t\tvy > vx\n\t\t\t\t\t\t\t? vy * Math.sqrt(1 + (vx * vx) / (vy * vy))\n\t\t\t\t\t\t\t: vx * Math.sqrt(1 + (vy * vy) / (vx * vx))\n\t\t\t\t\t);\n\t\t},\n\n\t\tgetDistance: function(px, py, vx, vy, x, y, asVector) {\n\t\t\treturn Math.abs(\n\t\t\t\t\tLine.getSignedDistance(px, py, vx, vy, x, y, asVector));\n\t\t}\n\t}\n});\n\nvar Project = PaperScopeItem.extend({\n\t_class: 'Project',\n\t_list: 'projects',\n\t_reference: 'project',\n\t_compactSerialize: true,\n\n\tinitialize: function Project(element) {\n\t\tPaperScopeItem.call(this, true);\n\t\tthis._children = [];\n\t\tthis._namedChildren = {};\n\t\tthis._activeLayer = null;\n\t\tthis._currentStyle = new Style(null, null, this);\n\t\tthis._view = View.create(this,\n\t\t\t\telement || CanvasProvider.getCanvas(1, 1));\n\t\tthis._selectionItems = {};\n\t\tthis._selectionCount = 0;\n\t\tthis._updateVersion = 0;\n\t},\n\n\t_serialize: function(options, dictionary) {\n\t\treturn Base.serialize(this._children, options, true, dictionary);\n\t},\n\n\t_changed: function(flags, item) {\n\t\tif (flags & 1) {\n\t\t\tvar view = this._view;\n\t\t\tif (view) {\n\t\t\t\tview._needsUpdate = true;\n\t\t\t\tif (!view._requested && view._autoUpdate)\n\t\t\t\t\tview.requestUpdate();\n\t\t\t}\n\t\t}\n\t\tvar changes = this._changes;\n\t\tif (changes && item) {\n\t\t\tvar changesById = this._changesById,\n\t\t\t\tid = item._id,\n\t\t\t\tentry = changesById[id];\n\t\t\tif (entry) {\n\t\t\t\tentry.flags |= flags;\n\t\t\t} else {\n\t\t\t\tchanges.push(changesById[id] = { item: item, flags: flags });\n\t\t\t}\n\t\t}\n\t},\n\n\tclear: function() {\n\t\tvar children = this._children;\n\t\tfor (var i = children.length - 1; i >= 0; i--)\n\t\t\tchildren[i].remove();\n\t},\n\n\tisEmpty: function() {\n\t\treturn !this._children.length;\n\t},\n\n\tremove: function remove() {\n\t\tif (!remove.base.call(this))\n\t\t\treturn false;\n\t\tif (this._view)\n\t\t\tthis._view.remove();\n\t\treturn true;\n\t},\n\n\tgetView: function() {\n\t\treturn this._view;\n\t},\n\n\tgetCurrentStyle: function() {\n\t\treturn this._currentStyle;\n\t},\n\n\tsetCurrentStyle: function(style) {\n\t\tthis._currentStyle.set(style);\n\t},\n\n\tgetIndex: function() {\n\t\treturn this._index;\n\t},\n\n\tgetOptions: function() {\n\t\treturn this._scope.settings;\n\t},\n\n\tgetLayers: function() {\n\t\treturn this._children;\n\t},\n\n\tgetActiveLayer: function() {\n\t\treturn this._activeLayer || new Layer({ project: this, insert: true });\n\t},\n\n\tgetSymbolDefinitions: function() {\n\t\tvar definitions = [],\n\t\t\tids = {};\n\t\tthis.getItems({\n\t\t\tclass: SymbolItem,\n\t\t\tmatch: function(item) {\n\t\t\t\tvar definition = item._definition,\n\t\t\t\t\tid = definition._id;\n\t\t\t\tif (!ids[id]) {\n\t\t\t\t\tids[id] = true;\n\t\t\t\t\tdefinitions.push(definition);\n\t\t\t\t}\n\t\t\t\treturn false;\n\t\t\t}\n\t\t});\n\t\treturn definitions;\n\t},\n\n\tgetSymbols: 'getSymbolDefinitions',\n\n\tgetSelectedItems: function() {\n\t\tvar selectionItems = this._selectionItems,\n\t\t\titems = [];\n\t\tfor (var id in selectionItems) {\n\t\t\tvar item = selectionItems[id],\n\t\t\t\tselection = item._selection;\n\t\t\tif ((selection & 1) && item.isInserted()) {\n\t\t\t\titems.push(item);\n\t\t\t} else if (!selection) {\n\t\t\t\tthis._updateSelection(item);\n\t\t\t}\n\t\t}\n\t\treturn items;\n\t},\n\n\t_updateSelection: function(item) {\n\t\tvar id = item._id,\n\t\t\tselectionItems = this._selectionItems;\n\t\tif (item._selection) {\n\t\t\tif (selectionItems[id] !== item) {\n\t\t\t\tthis._selectionCount++;\n\t\t\t\tselectionItems[id] = item;\n\t\t\t}\n\t\t} else if (selectionItems[id] === item) {\n\t\t\tthis._selectionCount--;\n\t\t\tdelete selectionItems[id];\n\t\t}\n\t},\n\n\tselectAll: function() {\n\t\tvar children = this._children;\n\t\tfor (var i = 0, l = children.length; i < l; i++)\n\t\t\tchildren[i].setFullySelected(true);\n\t},\n\n\tdeselectAll: function() {\n\t\tvar selectionItems = this._selectionItems;\n\t\tfor (var i in selectionItems)\n\t\t\tselectionItems[i].setFullySelected(false);\n\t},\n\n\taddLayer: function(layer) {\n\t\treturn this.insertLayer(undefined, layer);\n\t},\n\n\tinsertLayer: function(index, layer) {\n\t\tif (layer instanceof Layer) {\n\t\t\tlayer._remove(false, true);\n\t\t\tBase.splice(this._children, [layer], index, 0);\n\t\t\tlayer._setProject(this, true);\n\t\t\tvar name = layer._name;\n\t\t\tif (name)\n\t\t\t\tlayer.setName(name);\n\t\t\tif (this._changes)\n\t\t\t\tlayer._changed(5);\n\t\t\tif (!this._activeLayer)\n\t\t\t\tthis._activeLayer = layer;\n\t\t} else {\n\t\t\tlayer = null;\n\t\t}\n\t\treturn layer;\n\t},\n\n\t_insertItem: function(index, item, _created) {\n\t\titem = this.insertLayer(index, item)\n\t\t\t\t|| (this._activeLayer || this._insertItem(undefined,\n\t\t\t\t\t\tnew Layer(Item.NO_INSERT), true))\n\t\t\t\t\t\t.insertChild(index, item);\n\t\tif (_created && item.activate)\n\t\t\titem.activate();\n\t\treturn item;\n\t},\n\n\tgetItems: function(options) {\n\t\treturn Item._getItems(this, options);\n\t},\n\n\tgetItem: function(options) {\n\t\treturn Item._getItems(this, options, null, null, true)[0] || null;\n\t},\n\n\timportJSON: function(json) {\n\t\tthis.activate();\n\t\tvar layer = this._activeLayer;\n\t\treturn Base.importJSON(json, layer && layer.isEmpty() && layer);\n\t},\n\n\tremoveOn: function(type) {\n\t\tvar sets = this._removeSets;\n\t\tif (sets) {\n\t\t\tif (type === 'mouseup')\n\t\t\t\tsets.mousedrag = null;\n\t\t\tvar set = sets[type];\n\t\t\tif (set) {\n\t\t\t\tfor (var id in set) {\n\t\t\t\t\tvar item = set[id];\n\t\t\t\t\tfor (var key in sets) {\n\t\t\t\t\t\tvar other = sets[key];\n\t\t\t\t\t\tif (other && other != set)\n\t\t\t\t\t\t\tdelete other[item._id];\n\t\t\t\t\t}\n\t\t\t\t\titem.remove();\n\t\t\t\t}\n\t\t\t\tsets[type] = null;\n\t\t\t}\n\t\t}\n\t},\n\n\tdraw: function(ctx, matrix, pixelRatio) {\n\t\tthis._updateVersion++;\n\t\tctx.save();\n\t\tmatrix.applyToContext(ctx);\n\t\tvar children = this._children,\n\t\t\tparam = new Base({\n\t\t\t\toffset: new Point(0, 0),\n\t\t\t\tpixelRatio: pixelRatio,\n\t\t\t\tviewMatrix: matrix.isIdentity() ? null : matrix,\n\t\t\t\tmatrices: [new Matrix()],\n\t\t\t\tupdateMatrix: true\n\t\t\t});\n\t\tfor (var i = 0, l = children.length; i < l; i++) {\n\t\t\tchildren[i].draw(ctx, param);\n\t\t}\n\t\tctx.restore();\n\n\t\tif (this._selectionCount > 0) {\n\t\t\tctx.save();\n\t\t\tctx.strokeWidth = 1;\n\t\t\tvar items = this._selectionItems,\n\t\t\t\tsize = this._scope.settings.handleSize,\n\t\t\t\tversion = this._updateVersion;\n\t\t\tfor (var id in items) {\n\t\t\t\titems[id]._drawSelection(ctx, matrix, size, items, version);\n\t\t\t}\n\t\t\tctx.restore();\n\t\t}\n\t}\n});\n\nvar Item = Base.extend(Emitter, {\n\tstatics: {\n\t\textend: function extend(src) {\n\t\t\tif (src._serializeFields)\n\t\t\t\tsrc._serializeFields = Base.set({},\n\t\t\t\t\tthis.prototype._serializeFields, src._serializeFields);\n\t\t\treturn extend.base.apply(this, arguments);\n\t\t},\n\n\t\tNO_INSERT: { insert: false }\n\t},\n\n\t_class: 'Item',\n\t_name: null,\n\t_applyMatrix: true,\n\t_canApplyMatrix: true,\n\t_canScaleStroke: false,\n\t_pivot: null,\n\t_visible: true,\n\t_blendMode: 'normal',\n\t_opacity: 1,\n\t_locked: false,\n\t_guide: false,\n\t_clipMask: false,\n\t_selection: 0,\n\t_selectBounds: true,\n\t_selectChildren: false,\n\t_serializeFields: {\n\t\tname: null,\n\t\tapplyMatrix: null,\n\t\tmatrix: new Matrix(),\n\t\tpivot: null,\n\t\tvisible: true,\n\t\tblendMode: 'normal',\n\t\topacity: 1,\n\t\tlocked: false,\n\t\tguide: false,\n\t\tclipMask: false,\n\t\tselected: false,\n\t\tdata: {}\n\t},\n\t_prioritize: ['applyMatrix']\n},\nnew function() {\n\tvar handlers = ['onMouseDown', 'onMouseUp', 'onMouseDrag', 'onClick',\n\t\t\t'onDoubleClick', 'onMouseMove', 'onMouseEnter', 'onMouseLeave'];\n\treturn Base.each(handlers,\n\t\tfunction(name) {\n\t\t\tthis._events[name] = {\n\t\t\t\tinstall: function(type) {\n\t\t\t\t\tthis.getView()._countItemEvent(type, 1);\n\t\t\t\t},\n\n\t\t\t\tuninstall: function(type) {\n\t\t\t\t\tthis.getView()._countItemEvent(type, -1);\n\t\t\t\t}\n\t\t\t};\n\t\t}, {\n\t\t\t_events: {\n\t\t\t\tonFrame: {\n\t\t\t\t\tinstall: function() {\n\t\t\t\t\t\tthis.getView()._animateItem(this, true);\n\t\t\t\t\t},\n\n\t\t\t\t\tuninstall: function() {\n\t\t\t\t\t\tthis.getView()._animateItem(this, false);\n\t\t\t\t\t}\n\t\t\t\t},\n\n\t\t\t\tonLoad: {},\n\t\t\t\tonError: {}\n\t\t\t},\n\t\t\tstatics: {\n\t\t\t\t_itemHandlers: handlers\n\t\t\t}\n\t\t}\n\t);\n}, {\n\tinitialize: function Item() {\n\t},\n\n\t_initialize: function(props, point) {\n\t\tvar hasProps = props && Base.isPlainObject(props),\n\t\t\tinternal = hasProps && props.internal === true,\n\t\t\tmatrix = this._matrix = new Matrix(),\n\t\t\tproject = hasProps && props.project || paper.project,\n\t\t\tsettings = paper.settings;\n\t\tthis._id = internal ? null : UID.get();\n\t\tthis._parent = this._index = null;\n\t\tthis._applyMatrix = this._canApplyMatrix && settings.applyMatrix;\n\t\tif (point)\n\t\t\tmatrix.translate(point);\n\t\tmatrix._owner = this;\n\t\tthis._style = new Style(project._currentStyle, this, project);\n\t\tif (internal || hasProps && props.insert == false\n\t\t\t|| !settings.insertItems && !(hasProps && props.insert === true)) {\n\t\t\tthis._setProject(project);\n\t\t} else {\n\t\t\t(hasProps && props.parent || project)\n\t\t\t\t\t._insertItem(undefined, this, true);\n\t\t}\n\t\tif (hasProps && props !== Item.NO_INSERT) {\n\t\t\tthis.set(props, {\n\t\t\t\tinternal: true, insert: true, project: true, parent: true\n\t\t\t});\n\t\t}\n\t\treturn hasProps;\n\t},\n\n\t_serialize: function(options, dictionary) {\n\t\tvar props = {},\n\t\t\tthat = this;\n\n\t\tfunction serialize(fields) {\n\t\t\tfor (var key in fields) {\n\t\t\t\tvar value = that[key];\n\t\t\t\tif (!Base.equals(value, key === 'leading'\n\t\t\t\t\t\t? fields.fontSize * 1.2 : fields[key])) {\n\t\t\t\t\tprops[key] = Base.serialize(value, options,\n\t\t\t\t\t\t\tkey !== 'data', dictionary);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tserialize(this._serializeFields);\n\t\tif (!(this instanceof Group))\n\t\t\tserialize(this._style._defaults);\n\t\treturn [ this._class, props ];\n\t},\n\n\t_changed: function(flags) {\n\t\tvar symbol = this._symbol,\n\t\t\tcacheParent = this._parent || symbol,\n\t\t\tproject = this._project;\n\t\tif (flags & 8) {\n\t\t\tthis._bounds = this._position = this._decomposed = undefined;\n\t\t}\n\t\tif (flags & 16) {\n\t\t\tthis._globalMatrix = undefined;\n\t\t}\n\t\tif (cacheParent\n\t\t\t\t&& (flags & 72)) {\n\t\t\tItem._clearBoundsCache(cacheParent);\n\t\t}\n\t\tif (flags & 2) {\n\t\t\tItem._clearBoundsCache(this);\n\t\t}\n\t\tif (project)\n\t\t\tproject._changed(flags, this);\n\t\tif (symbol)\n\t\t\tsymbol._changed(flags);\n\t},\n\n\tgetId: function() {\n\t\treturn this._id;\n\t},\n\n\tgetName: function() {\n\t\treturn this._name;\n\t},\n\n\tsetName: function(name) {\n\n\t\tif (this._name)\n\t\t\tthis._removeNamed();\n\t\tif (name === (+name) + '')\n\t\t\tthrow new Error(\n\t\t\t\t\t'Names consisting only of numbers are not supported.');\n\t\tvar owner = this._getOwner();\n\t\tif (name && owner) {\n\t\t\tvar children = owner._children,\n\t\t\t\tnamedChildren = owner._namedChildren;\n\t\t\t(namedChildren[name] = namedChildren[name] || []).push(this);\n\t\t\tif (!(name in children))\n\t\t\t\tchildren[name] = this;\n\t\t}\n\t\tthis._name = name || undefined;\n\t\tthis._changed(256);\n\t},\n\n\tgetStyle: function() {\n\t\treturn this._style;\n\t},\n\n\tsetStyle: function(style) {\n\t\tthis.getStyle().set(style);\n\t}\n}, Base.each(['locked', 'visible', 'blendMode', 'opacity', 'guide'],\n\tfunction(name) {\n\t\tvar part = Base.capitalize(name),\n\t\t\tkey = '_' + name,\n\t\t\tflags = {\n\t\t\t\tlocked: 256,\n\t\t\t\tvisible: 265\n\t\t\t};\n\t\tthis['get' + part] = function() {\n\t\t\treturn this[key];\n\t\t};\n\t\tthis['set' + part] = function(value) {\n\t\t\tif (value != this[key]) {\n\t\t\t\tthis[key] = value;\n\t\t\t\tthis._changed(flags[name] || 257);\n\t\t\t}\n\t\t};\n\t},\n{}), {\n\tbeans: true,\n\n\tgetSelection: function() {\n\t\treturn this._selection;\n\t},\n\n\tsetSelection: function(selection) {\n\t\tif (selection !== this._selection) {\n\t\t\tthis._selection = selection;\n\t\t\tvar project = this._project;\n\t\t\tif (project) {\n\t\t\t\tproject._updateSelection(this);\n\t\t\t\tthis._changed(257);\n\t\t\t}\n\t\t}\n\t},\n\n\t_changeSelection: function(flag, selected) {\n\t\tvar selection = this._selection;\n\t\tthis.setSelection(selected ? selection | flag : selection & ~flag);\n\t},\n\n\tisSelected: function() {\n\t\tif (this._selectChildren) {\n\t\t\tvar children = this._children;\n\t\t\tfor (var i = 0, l = children.length; i < l; i++)\n\t\t\t\tif (children[i].isSelected())\n\t\t\t\t\treturn true;\n\t\t}\n\t\treturn !!(this._selection & 1);\n\t},\n\n\tsetSelected: function(selected) {\n\t\tif (this._selectChildren) {\n\t\t\tvar children = this._children;\n\t\t\tfor (var i = 0, l = children.length; i < l; i++)\n\t\t\t\tchildren[i].setSelected(selected);\n\t\t}\n\t\tthis._changeSelection(1, selected);\n\t},\n\n\tisFullySelected: function() {\n\t\tvar children = this._children,\n\t\t\tselected = !!(this._selection & 1);\n\t\tif (children && selected) {\n\t\t\tfor (var i = 0, l = children.length; i < l; i++)\n\t\t\t\tif (!children[i].isFullySelected())\n\t\t\t\t\treturn false;\n\t\t\treturn true;\n\t\t}\n\t\treturn selected;\n\t},\n\n\tsetFullySelected: function(selected) {\n\t\tvar children = this._children;\n\t\tif (children) {\n\t\t\tfor (var i = 0, l = children.length; i < l; i++)\n\t\t\t\tchildren[i].setFullySelected(selected);\n\t\t}\n\t\tthis._changeSelection(1, selected);\n\t},\n\n\tisClipMask: function() {\n\t\treturn this._clipMask;\n\t},\n\n\tsetClipMask: function(clipMask) {\n\t\tif (this._clipMask != (clipMask = !!clipMask)) {\n\t\t\tthis._clipMask = clipMask;\n\t\t\tif (clipMask) {\n\t\t\t\tthis.setFillColor(null);\n\t\t\t\tthis.setStrokeColor(null);\n\t\t\t}\n\t\t\tthis._changed(257);\n\t\t\tif (this._parent)\n\t\t\t\tthis._parent._changed(2048);\n\t\t}\n\t},\n\n\tgetData: function() {\n\t\tif (!this._data)\n\t\t\tthis._data = {};\n\t\treturn this._data;\n\t},\n\n\tsetData: function(data) {\n\t\tthis._data = data;\n\t},\n\n\tgetPosition: function(_dontLink) {\n\t\tvar ctor = _dontLink ? Point : LinkedPoint;\n\t\tvar position = this._position ||\n\t\t\t(this._position = this._getPositionFromBounds());\n\t\treturn new ctor(position.x, position.y, this, 'setPosition');\n\t},\n\n\tsetPosition: function() {\n\t\tthis.translate(Point.read(arguments).subtract(this.getPosition(true)));\n\t},\n\n\t_getPositionFromBounds: function(bounds) {\n\t\treturn this._pivot\n\t\t\t\t? this._matrix._transformPoint(this._pivot)\n\t\t\t\t: (bounds || this.getBounds()).getCenter(true);\n\t},\n\n\tgetPivot: function() {\n\t\tvar pivot = this._pivot;\n\t\treturn pivot\n\t\t\t\t? new LinkedPoint(pivot.x, pivot.y, this, 'setPivot')\n\t\t\t\t: null;\n\t},\n\n\tsetPivot: function() {\n\t\tthis._pivot = Point.read(arguments, 0, { clone: true, readNull: true });\n\t\tthis._position = undefined;\n\t}\n}, Base.each({\n\t\tgetStrokeBounds: { stroke: true },\n\t\tgetHandleBounds: { handle: true },\n\t\tgetInternalBounds: { internal: true }\n\t},\n\tfunction(options, key) {\n\t\tthis[key] = function(matrix) {\n\t\t\treturn this.getBounds(matrix, options);\n\t\t};\n\t},\n{\n\tbeans: true,\n\n\tgetBounds: function(matrix, options) {\n\t\tvar hasMatrix = options || matrix instanceof Matrix,\n\t\t\topts = Base.set({}, hasMatrix ? options : matrix,\n\t\t\t\t\tthis._boundsOptions);\n\t\tif (!opts.stroke || this.getStrokeScaling())\n\t\t\topts.cacheItem = this;\n\t\tvar rect = this._getCachedBounds(hasMatrix && matrix, opts).rect;\n\t\treturn !arguments.length\n\t\t\t\t? new LinkedRectangle(rect.x, rect.y, rect.width, rect.height,\n\t\t\t\t\tthis, 'setBounds')\n\t\t\t\t: rect;\n\t},\n\n\tsetBounds: function() {\n\t\tvar rect = Rectangle.read(arguments),\n\t\t\tbounds = this.getBounds(),\n\t\t\t_matrix = this._matrix,\n\t\t\tmatrix = new Matrix(),\n\t\t\tcenter = rect.getCenter();\n\t\tmatrix.translate(center);\n\t\tif (rect.width != bounds.width || rect.height != bounds.height) {\n\t\t\tif (!_matrix.isInvertible()) {\n\t\t\t\t_matrix.set(_matrix._backup\n\t\t\t\t\t\t|| new Matrix().translate(_matrix.getTranslation()));\n\t\t\t\tbounds = this.getBounds();\n\t\t\t}\n\t\t\tmatrix.scale(\n\t\t\t\t\tbounds.width !== 0 ? rect.width / bounds.width : 0,\n\t\t\t\t\tbounds.height !== 0 ? rect.height / bounds.height : 0);\n\t\t}\n\t\tcenter = bounds.getCenter();\n\t\tmatrix.translate(-center.x, -center.y);\n\t\tthis.transform(matrix);\n\t},\n\n\t_getBounds: function(matrix, options) {\n\t\tvar children = this._children;\n\t\tif (!children || !children.length)\n\t\t\treturn new Rectangle();\n\t\tItem._updateBoundsCache(this, options.cacheItem);\n\t\treturn Item._getBounds(children, matrix, options);\n\t},\n\n\t_getBoundsCacheKey: function(options, internal) {\n\t\treturn [\n\t\t\toptions.stroke ? 1 : 0,\n\t\t\toptions.handle ? 1 : 0,\n\t\t\tinternal ? 1 : 0\n\t\t].join('');\n\t},\n\n\t_getCachedBounds: function(matrix, options, noInternal) {\n\t\tmatrix = matrix && matrix._orNullIfIdentity();\n\t\tvar internal = options.internal && !noInternal,\n\t\t\tcacheItem = options.cacheItem,\n\t\t\t_matrix = internal ? null : this._matrix._orNullIfIdentity(),\n\t\t\tcacheKey = cacheItem && (!matrix || matrix.equals(_matrix))\n\t\t\t\t&& this._getBoundsCacheKey(options, internal),\n\t\t\tbounds = this._bounds;\n\t\tItem._updateBoundsCache(this._parent || this._symbol, cacheItem);\n\t\tif (cacheKey && bounds && cacheKey in bounds) {\n\t\t\tvar cached = bounds[cacheKey];\n\t\t\treturn {\n\t\t\t\trect: cached.rect.clone(),\n\t\t\t\tnonscaling: cached.nonscaling\n\t\t\t};\n\t\t}\n\t\tvar res = this._getBounds(matrix || _matrix, options),\n\t\t\trect = res.rect || res,\n\t\t\tstyle = this._style,\n\t\t\tnonscaling = res.nonscaling || style.hasStroke()\n\t\t\t\t&& !style.getStrokeScaling();\n\t\tif (cacheKey) {\n\t\t\tif (!bounds) {\n\t\t\t\tthis._bounds = bounds = {};\n\t\t\t}\n\t\t\tvar cached = bounds[cacheKey] = {\n\t\t\t\trect: rect.clone(),\n\t\t\t\tnonscaling: nonscaling,\n\t\t\t\tinternal: internal\n\t\t\t};\n\t\t}\n\t\treturn {\n\t\t\trect: rect,\n\t\t\tnonscaling: nonscaling\n\t\t};\n\t},\n\n\t_getStrokeMatrix: function(matrix, options) {\n\t\tvar parent = this.getStrokeScaling() ? null\n\t\t\t\t: options && options.internal ? this\n\t\t\t\t\t: this._parent || this._symbol && this._symbol._item,\n\t\t\tmx = parent ? parent.getViewMatrix().invert() : matrix;\n\t\treturn mx && mx._shiftless();\n\t},\n\n\tstatics: {\n\t\t_updateBoundsCache: function(parent, item) {\n\t\t\tif (parent && item) {\n\t\t\t\tvar id = item._id,\n\t\t\t\t\tref = parent._boundsCache = parent._boundsCache || {\n\t\t\t\t\t\tids: {},\n\t\t\t\t\t\tlist: []\n\t\t\t\t\t};\n\t\t\t\tif (!ref.ids[id]) {\n\t\t\t\t\tref.list.push(item);\n\t\t\t\t\tref.ids[id] = item;\n\t\t\t\t}\n\t\t\t}\n\t\t},\n\n\t\t_clearBoundsCache: function(item) {\n\t\t\tvar cache = item._boundsCache;\n\t\t\tif (cache) {\n\t\t\t\titem._bounds = item._position = item._boundsCache = undefined;\n\t\t\t\tfor (var i = 0, list = cache.list, l = list.length; i < l; i++){\n\t\t\t\t\tvar other = list[i];\n\t\t\t\t\tif (other !== item) {\n\t\t\t\t\t\tother._bounds = other._position = undefined;\n\t\t\t\t\t\tif (other._boundsCache)\n\t\t\t\t\t\t\tItem._clearBoundsCache(other);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t},\n\n\t\t_getBounds: function(items, matrix, options) {\n\t\t\tvar x1 = Infinity,\n\t\t\t\tx2 = -x1,\n\t\t\t\ty1 = x1,\n\t\t\t\ty2 = x2,\n\t\t\t\tnonscaling = false;\n\t\t\toptions = options || {};\n\t\t\tfor (var i = 0, l = items.length; i < l; i++) {\n\t\t\t\tvar item = items[i];\n\t\t\t\tif (item._visible && !item.isEmpty(true)) {\n\t\t\t\t\tvar bounds = item._getCachedBounds(\n\t\t\t\t\t\tmatrix && matrix.appended(item._matrix), options, true),\n\t\t\t\t\t\trect = bounds.rect;\n\t\t\t\t\tx1 = Math.min(rect.x, x1);\n\t\t\t\t\ty1 = Math.min(rect.y, y1);\n\t\t\t\t\tx2 = Math.max(rect.x + rect.width, x2);\n\t\t\t\t\ty2 = Math.max(rect.y + rect.height, y2);\n\t\t\t\t\tif (bounds.nonscaling)\n\t\t\t\t\t\tnonscaling = true;\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn {\n\t\t\t\trect: isFinite(x1)\n\t\t\t\t\t? new Rectangle(x1, y1, x2 - x1, y2 - y1)\n\t\t\t\t\t: new Rectangle(),\n\t\t\t\tnonscaling: nonscaling\n\t\t\t};\n\t\t}\n\t}\n\n}), {\n\tbeans: true,\n\n\t_decompose: function() {\n\t\treturn this._applyMatrix\n\t\t\t? null\n\t\t\t: this._decomposed || (this._decomposed = this._matrix.decompose());\n\t},\n\n\tgetRotation: function() {\n\t\tvar decomposed = this._decompose();\n\t\treturn decomposed ? decomposed.rotation : 0;\n\t},\n\n\tsetRotation: function(rotation) {\n\t\tvar current = this.getRotation();\n\t\tif (current != null && rotation != null) {\n\t\t\tvar decomposed = this._decomposed;\n\t\t\tthis.rotate(rotation - current);\n\t\t\tif (decomposed) {\n\t\t\t\tdecomposed.rotation = rotation;\n\t\t\t\tthis._decomposed = decomposed;\n\t\t\t}\n\t\t}\n\t},\n\n\tgetScaling: function() {\n\t\tvar decomposed = this._decompose(),\n\t\t\ts = decomposed && decomposed.scaling;\n\t\treturn new LinkedPoint(s ? s.x : 1, s ? s.y : 1, this, 'setScaling');\n\t},\n\n\tsetScaling: function() {\n\t\tvar current = this.getScaling(),\n\t\t\tscaling = Point.read(arguments, 0, { clone: true, readNull: true });\n\t\tif (current && scaling && !current.equals(scaling)) {\n\t\t\tvar rotation = this.getRotation(),\n\t\t\t\tdecomposed = this._decomposed,\n\t\t\t\tmatrix = new Matrix(),\n\t\t\t\tisZero = Numerical.isZero;\n\t\t\tif (isZero(current.x) || isZero(current.y)) {\n\t\t\t\tmatrix.translate(decomposed.translation);\n\t\t\t\tif (rotation) {\n\t\t\t\t\tmatrix.rotate(rotation);\n\t\t\t\t}\n\t\t\t\tmatrix.scale(scaling.x, scaling.y);\n\t\t\t\tthis._matrix.set(matrix);\n\t\t\t} else {\n\t\t\t\tvar center = this.getPosition(true);\n\t\t\t\tmatrix.translate(center);\n\t\t\t\tif (rotation)\n\t\t\t\t\tmatrix.rotate(rotation);\n\t\t\t\tmatrix.scale(scaling.x / current.x, scaling.y / current.y);\n\t\t\t\tif (rotation)\n\t\t\t\t\tmatrix.rotate(-rotation);\n\t\t\t\tmatrix.translate(center.negate());\n\t\t\t\tthis.transform(matrix);\n\t\t\t}\n\t\t\tif (decomposed) {\n\t\t\t\tdecomposed.scaling = scaling;\n\t\t\t\tthis._decomposed = decomposed;\n\t\t\t}\n\t\t}\n\t},\n\n\tgetMatrix: function() {\n\t\treturn this._matrix;\n\t},\n\n\tsetMatrix: function() {\n\t\tvar matrix = this._matrix;\n\t\tmatrix.set.apply(matrix, arguments);\n\t},\n\n\tgetGlobalMatrix: function(_dontClone) {\n\t\tvar matrix = this._globalMatrix;\n\t\tif (matrix) {\n\t\t\tvar parent = this._parent;\n\t\t\tvar parents = [];\n\t\t\twhile (parent) {\n\t\t\t\tif (!parent._globalMatrix) {\n\t\t\t\t\tmatrix = null;\n\t\t\t\t\tfor (var i = 0, l = parents.length; i < l; i++) {\n\t\t\t\t\t\tparents[i]._globalMatrix = null;\n\t\t\t\t\t}\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tparents.push(parent);\n\t\t\t\tparent = parent._parent;\n\t\t\t}\n\t\t}\n\t\tif (!matrix) {\n\t\t\tmatrix = this._globalMatrix = this._matrix.clone();\n\t\t\tvar parent = this._parent;\n\t\t\tif (parent)\n\t\t\t\tmatrix.prepend(parent.getGlobalMatrix(true));\n\t\t}\n\t\treturn _dontClone ? matrix : matrix.clone();\n\t},\n\n\tgetViewMatrix: function() {\n\t\treturn this.getGlobalMatrix().prepend(this.getView()._matrix);\n\t},\n\n\tgetApplyMatrix: function() {\n\t\treturn this._applyMatrix;\n\t},\n\n\tsetApplyMatrix: function(apply) {\n\t\tif (this._applyMatrix = this._canApplyMatrix && !!apply)\n\t\t\tthis.transform(null, true);\n\t},\n\n\tgetTransformContent: '#getApplyMatrix',\n\tsetTransformContent: '#setApplyMatrix',\n}, {\n\tgetProject: function() {\n\t\treturn this._project;\n\t},\n\n\t_setProject: function(project, installEvents) {\n\t\tif (this._project !== project) {\n\t\t\tif (this._project)\n\t\t\t\tthis._installEvents(false);\n\t\t\tthis._project = project;\n\t\t\tvar children = this._children;\n\t\t\tfor (var i = 0, l = children && children.length; i < l; i++)\n\t\t\t\tchildren[i]._setProject(project);\n\t\t\tinstallEvents = true;\n\t\t}\n\t\tif (installEvents)\n\t\t\tthis._installEvents(true);\n\t},\n\n\tgetView: function() {\n\t\treturn this._project._view;\n\t},\n\n\t_installEvents: function _installEvents(install) {\n\t\t_installEvents.base.call(this, install);\n\t\tvar children = this._children;\n\t\tfor (var i = 0, l = children && children.length; i < l; i++)\n\t\t\tchildren[i]._installEvents(install);\n\t},\n\n\tgetLayer: function() {\n\t\tvar parent = this;\n\t\twhile (parent = parent._parent) {\n\t\t\tif (parent instanceof Layer)\n\t\t\t\treturn parent;\n\t\t}\n\t\treturn null;\n\t},\n\n\tgetParent: function() {\n\t\treturn this._parent;\n\t},\n\n\tsetParent: function(item) {\n\t\treturn item.addChild(this);\n\t},\n\n\t_getOwner: '#getParent',\n\n\tgetChildren: function() {\n\t\treturn this._children;\n\t},\n\n\tsetChildren: function(items) {\n\t\tthis.removeChildren();\n\t\tthis.addChildren(items);\n\t},\n\n\tgetFirstChild: function() {\n\t\treturn this._children && this._children[0] || null;\n\t},\n\n\tgetLastChild: function() {\n\t\treturn this._children && this._children[this._children.length - 1]\n\t\t\t\t|| null;\n\t},\n\n\tgetNextSibling: function() {\n\t\tvar owner = this._getOwner();\n\t\treturn owner && owner._children[this._index + 1] || null;\n\t},\n\n\tgetPreviousSibling: function() {\n\t\tvar owner = this._getOwner();\n\t\treturn owner && owner._children[this._index - 1] || null;\n\t},\n\n\tgetIndex: function() {\n\t\treturn this._index;\n\t},\n\n\tequals: function(item) {\n\t\treturn item === this || item && this._class === item._class\n\t\t\t\t&& this._style.equals(item._style)\n\t\t\t\t&& this._matrix.equals(item._matrix)\n\t\t\t\t&& this._locked === item._locked\n\t\t\t\t&& this._visible === item._visible\n\t\t\t\t&& this._blendMode === item._blendMode\n\t\t\t\t&& this._opacity === item._opacity\n\t\t\t\t&& this._clipMask === item._clipMask\n\t\t\t\t&& this._guide === item._guide\n\t\t\t\t&& this._equals(item)\n\t\t\t\t|| false;\n\t},\n\n\t_equals: function(item) {\n\t\treturn Base.equals(this._children, item._children);\n\t},\n\n\tclone: function(options) {\n\t\tvar copy = new this.constructor(Item.NO_INSERT),\n\t\t\tchildren = this._children,\n\t\t\tinsert = Base.pick(options ? options.insert : undefined,\n\t\t\t\t\toptions === undefined || options === true),\n\t\t\tdeep = Base.pick(options ? options.deep : undefined, true);\n\t\tif (children)\n\t\t\tcopy.copyAttributes(this);\n\t\tif (!children || deep)\n\t\t\tcopy.copyContent(this);\n\t\tif (!children)\n\t\t\tcopy.copyAttributes(this);\n\t\tif (insert)\n\t\t\tcopy.insertAbove(this);\n\t\tvar name = this._name,\n\t\t\tparent = this._parent;\n\t\tif (name && parent) {\n\t\t\tvar children = parent._children,\n\t\t\t\torig = name,\n\t\t\t\ti = 1;\n\t\t\twhile (children[name])\n\t\t\t\tname = orig + ' ' + (i++);\n\t\t\tif (name !== orig)\n\t\t\t\tcopy.setName(name);\n\t\t}\n\t\treturn copy;\n\t},\n\n\tcopyContent: function(source) {\n\t\tvar children = source._children;\n\t\tfor (var i = 0, l = children && children.length; i < l; i++) {\n\t\t\tthis.addChild(children[i].clone(false), true);\n\t\t}\n\t},\n\n\tcopyAttributes: function(source, excludeMatrix) {\n\t\tthis.setStyle(source._style);\n\t\tvar keys = ['_locked', '_visible', '_blendMode', '_opacity',\n\t\t\t\t'_clipMask', '_guide'];\n\t\tfor (var i = 0, l = keys.length; i < l; i++) {\n\t\t\tvar key = keys[i];\n\t\t\tif (source.hasOwnProperty(key))\n\t\t\t\tthis[key] = source[key];\n\t\t}\n\t\tif (!excludeMatrix)\n\t\t\tthis._matrix.set(source._matrix, true);\n\t\tthis.setApplyMatrix(source._applyMatrix);\n\t\tthis.setPivot(source._pivot);\n\t\tthis.setSelection(source._selection);\n\t\tvar data = source._data,\n\t\t\tname = source._name;\n\t\tthis._data = data ? Base.clone(data) : null;\n\t\tif (name)\n\t\t\tthis.setName(name);\n\t},\n\n\trasterize: function(arg0, arg1) {\n\t\tvar resolution,\n\t\t\tinsert,\n\t\t\traster;\n\t\tif (Base.isPlainObject(arg0)) {\n\t\t\tresolution = arg0.resolution;\n\t\t\tinsert = arg0.insert;\n\t\t\traster = arg0.raster;\n\t\t} else {\n\t\t\tresolution = arg0;\n\t\t\tinsert = arg1;\n\t\t}\n\t\tif (raster) {\n\t\t\traster.matrix.reset(true);\n\t\t} else {\n\t\t\traster = new Raster(Item.NO_INSERT);\n\t\t}\n\t\tvar bounds = this.getStrokeBounds(),\n\t\t\tscale = (resolution || this.getView().getResolution()) / 72,\n\t\t\ttopLeft = bounds.getTopLeft().floor(),\n\t\t\tbottomRight = bounds.getBottomRight().ceil(),\n\t\t\tboundsSize = new Size(bottomRight.subtract(topLeft)),\n\t\t\trasterSize = boundsSize.multiply(scale);\n\t\traster.setSize(rasterSize, true);\n\n\t\tif (!rasterSize.isZero()) {\n\t\t\tvar ctx = raster.getContext(true),\n\t\t\t\tmatrix = new Matrix().scale(scale).translate(topLeft.negate());\n\t\t\tctx.save();\n\t\t\tmatrix.applyToContext(ctx);\n\t\t\tthis.draw(ctx, new Base({ matrices: [matrix] }));\n\t\t\tctx.restore();\n\t\t}\n\t\traster.transform(\n\t\t\tnew Matrix()\n\t\t\t\t.translate(topLeft.add(boundsSize.divide(2)))\n\t\t\t\t.scale(1 / scale)\n\t\t);\n\t\tif (insert === undefined || insert) {\n\t\t\traster.insertAbove(this);\n\t\t}\n\t\treturn raster;\n\t},\n\n\tcontains: function() {\n\t\tvar matrix = this._matrix;\n\t\treturn (\n\t\t\tmatrix.isInvertible() &&\n\t\t\t!!this._contains(matrix._inverseTransform(Point.read(arguments)))\n\t\t);\n\t},\n\n\t_contains: function(point) {\n\t\tvar children = this._children;\n\t\tif (children) {\n\t\t\tfor (var i = children.length - 1; i >= 0; i--) {\n\t\t\t\tif (children[i].contains(point))\n\t\t\t\t\treturn true;\n\t\t\t}\n\t\t\treturn false;\n\t\t}\n\t\treturn point.isInside(this.getInternalBounds());\n\t},\n\n\tisInside: function() {\n\t\treturn Rectangle.read(arguments).contains(this.getBounds());\n\t},\n\n\t_asPathItem: function() {\n\t\treturn new Path.Rectangle({\n\t\t\trectangle: this.getInternalBounds(),\n\t\t\tmatrix: this._matrix,\n\t\t\tinsert: false,\n\t\t});\n\t},\n\n\tintersects: function(item, _matrix) {\n\t\tif (!(item instanceof Item))\n\t\t\treturn false;\n\t\treturn this._asPathItem().getIntersections(item._asPathItem(), null,\n\t\t\t\t_matrix, true).length > 0;\n\t}\n},\nnew function() {\n\tfunction hitTest() {\n\t\tvar args = arguments;\n\t\treturn this._hitTest(\n\t\t\t\tPoint.read(args),\n\t\t\t\tHitResult.getOptions(args));\n\t}\n\n\tfunction hitTestAll() {\n\t\tvar args = arguments,\n\t\t\tpoint = Point.read(args),\n\t\t\toptions = HitResult.getOptions(args),\n\t\t\tall = [];\n\t\tthis._hitTest(point, new Base({ all: all }, options));\n\t\treturn all;\n\t}\n\n\tfunction hitTestChildren(point, options, viewMatrix, _exclude) {\n\t\tvar children = this._children;\n\t\tif (children) {\n\t\t\tfor (var i = children.length - 1; i >= 0; i--) {\n\t\t\t\tvar child = children[i];\n\t\t\t\tvar res = child !== _exclude && child._hitTest(point, options,\n\t\t\t\t\t\tviewMatrix);\n\t\t\t\tif (res && !options.all)\n\t\t\t\t\treturn res;\n\t\t\t}\n\t\t}\n\t\treturn null;\n\t}\n\n\tProject.inject({\n\t\thitTest: hitTest,\n\t\thitTestAll: hitTestAll,\n\t\t_hitTest: hitTestChildren\n\t});\n\n\treturn {\n\t\thitTest: hitTest,\n\t\thitTestAll: hitTestAll,\n\t\t_hitTestChildren: hitTestChildren,\n\t};\n}, {\n\n\t_hitTest: function(point, options, parentViewMatrix) {\n\t\tif (this._locked || !this._visible || this._guide && !options.guides\n\t\t\t\t|| this.isEmpty()) {\n\t\t\treturn null;\n\t\t}\n\n\t\tvar matrix = this._matrix,\n\t\t\tviewMatrix = parentViewMatrix\n\t\t\t\t\t? parentViewMatrix.appended(matrix)\n\t\t\t\t\t: this.getGlobalMatrix().prepend(this.getView()._matrix),\n\t\t\ttolerance = Math.max(options.tolerance, 1e-12),\n\t\t\ttolerancePadding = options._tolerancePadding = new Size(\n\t\t\t\t\tPath._getStrokePadding(tolerance,\n\t\t\t\t\t\tmatrix._shiftless().invert()));\n\t\tpoint = matrix._inverseTransform(point);\n\t\tif (!point || !this._children &&\n\t\t\t!this.getBounds({ internal: true, stroke: true, handle: true })\n\t\t\t\t.expand(tolerancePadding.multiply(2))._containsPoint(point)) {\n\t\t\treturn null;\n\t\t}\n\n\t\tvar checkSelf = !(options.guides && !this._guide\n\t\t\t\t|| options.selected && !this.isSelected()\n\t\t\t\t|| options.type && options.type !== Base.hyphenate(this._class)\n\t\t\t\t|| options.class && !(this instanceof options.class)),\n\t\t\tmatch = options.match,\n\t\t\tthat = this,\n\t\t\tbounds,\n\t\t\tres;\n\n\t\tfunction filter(hit) {\n\t\t\tif (hit && match && !match(hit))\n\t\t\t\thit = null;\n\t\t\tif (hit && options.all)\n\t\t\t\toptions.all.push(hit);\n\t\t\treturn hit;\n\t\t}\n\n\t\tfunction checkPoint(type, part) {\n\t\t\tvar pt = part ? bounds['get' + part]() : that.getPosition();\n\t\t\tif (point.subtract(pt).divide(tolerancePadding).length <= 1) {\n\t\t\t\treturn new HitResult(type, that, {\n\t\t\t\t\tname: part ? Base.hyphenate(part) : type,\n\t\t\t\t\tpoint: pt\n\t\t\t\t});\n\t\t\t}\n\t\t}\n\n\t\tvar checkPosition = options.position,\n\t\t\tcheckCenter = options.center,\n\t\t\tcheckBounds = options.bounds;\n\t\tif (checkSelf && this._parent\n\t\t\t\t&& (checkPosition || checkCenter || checkBounds)) {\n\t\t\tif (checkCenter || checkBounds) {\n\t\t\t\tbounds = this.getInternalBounds();\n\t\t\t}\n\t\t\tres = checkPosition && checkPoint('position') ||\n\t\t\t\t\tcheckCenter && checkPoint('center', 'Center');\n\t\t\tif (!res && checkBounds) {\n\t\t\t\tvar points = [\n\t\t\t\t\t'TopLeft', 'TopRight', 'BottomLeft', 'BottomRight',\n\t\t\t\t\t'LeftCenter', 'TopCenter', 'RightCenter', 'BottomCenter'\n\t\t\t\t];\n\t\t\t\tfor (var i = 0; i < 8 && !res; i++) {\n\t\t\t\t\tres = checkPoint('bounds', points[i]);\n\t\t\t\t}\n\t\t\t}\n\t\t\tres = filter(res);\n\t\t}\n\n\t\tif (!res) {\n\t\t\tres = this._hitTestChildren(point, options, viewMatrix)\n\t\t\t\t|| checkSelf\n\t\t\t\t\t&& filter(this._hitTestSelf(point, options, viewMatrix,\n\t\t\t\t\t\tthis.getStrokeScaling() ? null\n\t\t\t\t\t\t\t: viewMatrix._shiftless().invert()))\n\t\t\t\t|| null;\n\t\t}\n\t\tif (res && res.point) {\n\t\t\tres.point = matrix.transform(res.point);\n\t\t}\n\t\treturn res;\n\t},\n\n\t_hitTestSelf: function(point, options) {\n\t\tif (options.fill && this.hasFill() && this._contains(point))\n\t\t\treturn new HitResult('fill', this);\n\t},\n\n\tmatches: function(name, compare) {\n\t\tfunction matchObject(obj1, obj2) {\n\t\t\tfor (var i in obj1) {\n\t\t\t\tif (obj1.hasOwnProperty(i)) {\n\t\t\t\t\tvar val1 = obj1[i],\n\t\t\t\t\t\tval2 = obj2[i];\n\t\t\t\t\tif (Base.isPlainObject(val1) && Base.isPlainObject(val2)) {\n\t\t\t\t\t\tif (!matchObject(val1, val2))\n\t\t\t\t\t\t\treturn false;\n\t\t\t\t\t} else if (!Base.equals(val1, val2)) {\n\t\t\t\t\t\treturn false;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn true;\n\t\t}\n\t\tvar type = typeof name;\n\t\tif (type === 'object') {\n\t\t\tfor (var key in name) {\n\t\t\t\tif (name.hasOwnProperty(key) && !this.matches(key, name[key]))\n\t\t\t\t\treturn false;\n\t\t\t}\n\t\t\treturn true;\n\t\t} else if (type === 'function') {\n\t\t\treturn name(this);\n\t\t} else if (name === 'match') {\n\t\t\treturn compare(this);\n\t\t} else {\n\t\t\tvar value = /^(empty|editable)$/.test(name)\n\t\t\t\t\t? this['is' + Base.capitalize(name)]()\n\t\t\t\t\t: name === 'type'\n\t\t\t\t\t\t? Base.hyphenate(this._class)\n\t\t\t\t\t\t: this[name];\n\t\t\tif (name === 'class') {\n\t\t\t\tif (typeof compare === 'function')\n\t\t\t\t\treturn this instanceof compare;\n\t\t\t\tvalue = this._class;\n\t\t\t}\n\t\t\tif (typeof compare === 'function') {\n\t\t\t\treturn !!compare(value);\n\t\t\t} else if (compare) {\n\t\t\t\tif (compare.test) {\n\t\t\t\t\treturn compare.test(value);\n\t\t\t\t} else if (Base.isPlainObject(compare)) {\n\t\t\t\t\treturn matchObject(compare, value);\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn Base.equals(value, compare);\n\t\t}\n\t},\n\n\tgetItems: function(options) {\n\t\treturn Item._getItems(this, options, this._matrix);\n\t},\n\n\tgetItem: function(options) {\n\t\treturn Item._getItems(this, options, this._matrix, null, true)[0]\n\t\t\t\t|| null;\n\t},\n\n\tstatics: {\n\t\t_getItems: function _getItems(item, options, matrix, param, firstOnly) {\n\t\t\tif (!param) {\n\t\t\t\tvar obj = typeof options === 'object' && options,\n\t\t\t\t\toverlapping = obj && obj.overlapping,\n\t\t\t\t\tinside = obj && obj.inside,\n\t\t\t\t\tbounds = overlapping || inside,\n\t\t\t\t\trect = bounds && Rectangle.read([bounds]);\n\t\t\t\tparam = {\n\t\t\t\t\titems: [],\n\t\t\t\t\trecursive: obj && obj.recursive !== false,\n\t\t\t\t\tinside: !!inside,\n\t\t\t\t\toverlapping: !!overlapping,\n\t\t\t\t\trect: rect,\n\t\t\t\t\tpath: overlapping && new Path.Rectangle({\n\t\t\t\t\t\trectangle: rect,\n\t\t\t\t\t\tinsert: false\n\t\t\t\t\t})\n\t\t\t\t};\n\t\t\t\tif (obj) {\n\t\t\t\t\toptions = Base.filter({}, options, {\n\t\t\t\t\t\trecursive: true, inside: true, overlapping: true\n\t\t\t\t\t});\n\t\t\t\t}\n\t\t\t}\n\t\t\tvar children = item._children,\n\t\t\t\titems = param.items,\n\t\t\t\trect = param.rect;\n\t\t\tmatrix = rect && (matrix || new Matrix());\n\t\t\tfor (var i = 0, l = children && children.length; i < l; i++) {\n\t\t\t\tvar child = children[i],\n\t\t\t\t\tchildMatrix = matrix && matrix.appended(child._matrix),\n\t\t\t\t\tadd = true;\n\t\t\t\tif (rect) {\n\t\t\t\t\tvar bounds = child.getBounds(childMatrix);\n\t\t\t\t\tif (!rect.intersects(bounds))\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\tif (!(rect.contains(bounds)\n\t\t\t\t\t\t\t|| param.overlapping && (bounds.contains(rect)\n\t\t\t\t\t\t\t\t|| param.path.intersects(child, childMatrix))))\n\t\t\t\t\t\tadd = false;\n\t\t\t\t}\n\t\t\t\tif (add && child.matches(options)) {\n\t\t\t\t\titems.push(child);\n\t\t\t\t\tif (firstOnly)\n\t\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tif (param.recursive !== false) {\n\t\t\t\t\t_getItems(child, options, childMatrix, param, firstOnly);\n\t\t\t\t}\n\t\t\t\tif (firstOnly && items.length > 0)\n\t\t\t\t\tbreak;\n\t\t\t}\n\t\t\treturn items;\n\t\t}\n\t}\n}, {\n\n\timportJSON: function(json) {\n\t\tvar res = Base.importJSON(json, this);\n\t\treturn res !== this ? this.addChild(res) : res;\n\t},\n\n\taddChild: function(item) {\n\t\treturn this.insertChild(undefined, item);\n\t},\n\n\tinsertChild: function(index, item) {\n\t\tvar res = item ? this.insertChildren(index, [item]) : null;\n\t\treturn res && res[0];\n\t},\n\n\taddChildren: function(items) {\n\t\treturn this.insertChildren(this._children.length, items);\n\t},\n\n\tinsertChildren: function(index, items) {\n\t\tvar children = this._children;\n\t\tif (children && items && items.length > 0) {\n\t\t\titems = Base.slice(items);\n\t\t\tvar inserted = {};\n\t\t\tfor (var i = items.length - 1; i >= 0; i--) {\n\t\t\t\tvar item = items[i],\n\t\t\t\t\tid = item && item._id;\n\t\t\t\tif (!item || inserted[id]) {\n\t\t\t\t\titems.splice(i, 1);\n\t\t\t\t} else {\n\t\t\t\t\titem._remove(false, true);\n\t\t\t\t\tinserted[id] = true;\n\t\t\t\t}\n\t\t\t}\n\t\t\tBase.splice(children, items, index, 0);\n\t\t\tvar project = this._project,\n\t\t\t\tnotifySelf = project._changes;\n\t\t\tfor (var i = 0, l = items.length; i < l; i++) {\n\t\t\t\tvar item = items[i],\n\t\t\t\t\tname = item._name;\n\t\t\t\titem._parent = this;\n\t\t\t\titem._setProject(project, true);\n\t\t\t\tif (name)\n\t\t\t\t\titem.setName(name);\n\t\t\t\tif (notifySelf)\n\t\t\t\t\titem._changed(5);\n\t\t\t}\n\t\t\tthis._changed(11);\n\t\t} else {\n\t\t\titems = null;\n\t\t}\n\t\treturn items;\n\t},\n\n\t_insertItem: '#insertChild',\n\n\t_insertAt: function(item, offset) {\n\t\tvar owner = item && item._getOwner(),\n\t\t\tres = item !== this && owner ? this : null;\n\t\tif (res) {\n\t\t\tres._remove(false, true);\n\t\t\towner._insertItem(item._index + offset, res);\n\t\t}\n\t\treturn res;\n\t},\n\n\tinsertAbove: function(item) {\n\t\treturn this._insertAt(item, 1);\n\t},\n\n\tinsertBelow: function(item) {\n\t\treturn this._insertAt(item, 0);\n\t},\n\n\tsendToBack: function() {\n\t\tvar owner = this._getOwner();\n\t\treturn owner ? owner._insertItem(0, this) : null;\n\t},\n\n\tbringToFront: function() {\n\t\tvar owner = this._getOwner();\n\t\treturn owner ? owner._insertItem(undefined, this) : null;\n\t},\n\n\tappendTop: '#addChild',\n\n\tappendBottom: function(item) {\n\t\treturn this.insertChild(0, item);\n\t},\n\n\tmoveAbove: '#insertAbove',\n\n\tmoveBelow: '#insertBelow',\n\n\taddTo: function(owner) {\n\t\treturn owner._insertItem(undefined, this);\n\t},\n\n\tcopyTo: function(owner) {\n\t\treturn this.clone(false).addTo(owner);\n\t},\n\n\treduce: function(options) {\n\t\tvar children = this._children;\n\t\tif (children && children.length === 1) {\n\t\t\tvar child = children[0].reduce(options);\n\t\t\tif (this._parent) {\n\t\t\t\tchild.insertAbove(this);\n\t\t\t\tthis.remove();\n\t\t\t} else {\n\t\t\t\tchild.remove();\n\t\t\t}\n\t\t\treturn child;\n\t\t}\n\t\treturn this;\n\t},\n\n\t_removeNamed: function() {\n\t\tvar owner = this._getOwner();\n\t\tif (owner) {\n\t\t\tvar children = owner._children,\n\t\t\t\tnamedChildren = owner._namedChildren,\n\t\t\t\tname = this._name,\n\t\t\t\tnamedArray = namedChildren[name],\n\t\t\t\tindex = namedArray ? namedArray.indexOf(this) : -1;\n\t\t\tif (index !== -1) {\n\t\t\t\tif (children[name] == this)\n\t\t\t\t\tdelete children[name];\n\t\t\t\tnamedArray.splice(index, 1);\n\t\t\t\tif (namedArray.length) {\n\t\t\t\t\tchildren[name] = namedArray[0];\n\t\t\t\t} else {\n\t\t\t\t\tdelete namedChildren[name];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\t_remove: function(notifySelf, notifyParent) {\n\t\tvar owner = this._getOwner(),\n\t\t\tproject = this._project,\n\t\t\tindex = this._index;\n\t\tif (this._style)\n\t\t\tthis._style._dispose();\n\t\tif (owner) {\n\t\t\tif (this._name)\n\t\t\t\tthis._removeNamed();\n\t\t\tif (index != null) {\n\t\t\t\tif (project._activeLayer === this)\n\t\t\t\t\tproject._activeLayer = this.getNextSibling()\n\t\t\t\t\t\t\t|| this.getPreviousSibling();\n\t\t\t\tBase.splice(owner._children, null, index, 1);\n\t\t\t}\n\t\t\tthis._installEvents(false);\n\t\t\tif (notifySelf && project._changes)\n\t\t\t\tthis._changed(5);\n\t\t\tif (notifyParent)\n\t\t\t\towner._changed(11, this);\n\t\t\tthis._parent = null;\n\t\t\treturn true;\n\t\t}\n\t\treturn false;\n\t},\n\n\tremove: function() {\n\t\treturn this._remove(true, true);\n\t},\n\n\treplaceWith: function(item) {\n\t\tvar ok = item && item.insertBelow(this);\n\t\tif (ok)\n\t\t\tthis.remove();\n\t\treturn ok;\n\t},\n\n\tremoveChildren: function(start, end) {\n\t\tif (!this._children)\n\t\t\treturn null;\n\t\tstart = start || 0;\n\t\tend = Base.pick(end, this._children.length);\n\t\tvar removed = Base.splice(this._children, null, start, end - start);\n\t\tfor (var i = removed.length - 1; i >= 0; i--) {\n\t\t\tremoved[i]._remove(true, false);\n\t\t}\n\t\tif (removed.length > 0)\n\t\t\tthis._changed(11);\n\t\treturn removed;\n\t},\n\n\tclear: '#removeChildren',\n\n\treverseChildren: function() {\n\t\tif (this._children) {\n\t\t\tthis._children.reverse();\n\t\t\tfor (var i = 0, l = this._children.length; i < l; i++)\n\t\t\t\tthis._children[i]._index = i;\n\t\t\tthis._changed(11);\n\t\t}\n\t},\n\n\tisEmpty: function(recursively) {\n\t\tvar children = this._children;\n\t\tvar numChildren = children ? children.length : 0;\n\t\tif (recursively) {\n\t\t\tfor (var i = 0; i < numChildren; i++) {\n\t\t\t\tif (!children[i].isEmpty(recursively)) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn true;\n\t\t}\n\t\treturn !numChildren;\n\t},\n\n\tisEditable: function() {\n\t\tvar item = this;\n\t\twhile (item) {\n\t\t\tif (!item._visible || item._locked)\n\t\t\t\treturn false;\n\t\t\titem = item._parent;\n\t\t}\n\t\treturn true;\n\t},\n\n\thasFill: function() {\n\t\treturn this.getStyle().hasFill();\n\t},\n\n\thasStroke: function() {\n\t\treturn this.getStyle().hasStroke();\n\t},\n\n\thasShadow: function() {\n\t\treturn this.getStyle().hasShadow();\n\t},\n\n\t_getOrder: function(item) {\n\t\tfunction getList(item) {\n\t\t\tvar list = [];\n\t\t\tdo {\n\t\t\t\tlist.unshift(item);\n\t\t\t} while (item = item._parent);\n\t\t\treturn list;\n\t\t}\n\t\tvar list1 = getList(this),\n\t\t\tlist2 = getList(item);\n\t\tfor (var i = 0, l = Math.min(list1.length, list2.length); i < l; i++) {\n\t\t\tif (list1[i] != list2[i]) {\n\t\t\t\treturn list1[i]._index < list2[i]._index ? 1 : -1;\n\t\t\t}\n\t\t}\n\t\treturn 0;\n\t},\n\n\thasChildren: function() {\n\t\treturn this._children && this._children.length > 0;\n\t},\n\n\tisInserted: function() {\n\t\treturn this._parent ? this._parent.isInserted() : false;\n\t},\n\n\tisAbove: function(item) {\n\t\treturn this._getOrder(item) === -1;\n\t},\n\n\tisBelow: function(item) {\n\t\treturn this._getOrder(item) === 1;\n\t},\n\n\tisParent: function(item) {\n\t\treturn this._parent === item;\n\t},\n\n\tisChild: function(item) {\n\t\treturn item && item._parent === this;\n\t},\n\n\tisDescendant: function(item) {\n\t\tvar parent = this;\n\t\twhile (parent = parent._parent) {\n\t\t\tif (parent === item)\n\t\t\t\treturn true;\n\t\t}\n\t\treturn false;\n\t},\n\n\tisAncestor: function(item) {\n\t\treturn item ? item.isDescendant(this) : false;\n\t},\n\n\tisSibling: function(item) {\n\t\treturn this._parent === item._parent;\n\t},\n\n\tisGroupedWith: function(item) {\n\t\tvar parent = this._parent;\n\t\twhile (parent) {\n\t\t\tif (parent._parent\n\t\t\t\t&& /^(Group|Layer|CompoundPath)$/.test(parent._class)\n\t\t\t\t&& item.isDescendant(parent))\n\t\t\t\t\treturn true;\n\t\t\tparent = parent._parent;\n\t\t}\n\t\treturn false;\n\t},\n\n}, Base.each(['rotate', 'scale', 'shear', 'skew'], function(key) {\n\tvar rotate = key === 'rotate';\n\tthis[key] = function() {\n\t\tvar args = arguments,\n\t\t\tvalue = (rotate ? Base : Point).read(args),\n\t\t\tcenter = Point.read(args, 0, { readNull: true });\n\t\treturn this.transform(new Matrix()[key](value,\n\t\t\t\tcenter || this.getPosition(true)));\n\t};\n}, {\n\ttranslate: function() {\n\t\tvar mx = new Matrix();\n\t\treturn this.transform(mx.translate.apply(mx, arguments));\n\t},\n\n\ttransform: function(matrix, _applyRecursively, _setApplyMatrix) {\n\t\tvar _matrix = this._matrix,\n\t\t\ttransformMatrix = matrix && !matrix.isIdentity(),\n\t\t\tapplyMatrix = (\n\t\t\t\t_setApplyMatrix && this._canApplyMatrix ||\n\t\t\t\tthis._applyMatrix && (\n\t\t\t\t\ttransformMatrix || !_matrix.isIdentity() ||\n\t\t\t\t\t_applyRecursively && this._children\n\t\t\t\t)\n\t\t\t);\n\t\tif (!transformMatrix && !applyMatrix)\n\t\t\treturn this;\n\t\tif (transformMatrix) {\n\t\t\tif (!matrix.isInvertible() && _matrix.isInvertible())\n\t\t\t\t_matrix._backup = _matrix.getValues();\n\t\t\t_matrix.prepend(matrix, true);\n\t\t\tvar style = this._style,\n\t\t\t\tfillColor = style.getFillColor(true),\n\t\t\t\tstrokeColor = style.getStrokeColor(true);\n\t\t\tif (fillColor)\n\t\t\t\tfillColor.transform(matrix);\n\t\t\tif (strokeColor)\n\t\t\t\tstrokeColor.transform(matrix);\n\t\t}\n\n\t\tif (applyMatrix && (applyMatrix = this._transformContent(\n\t\t\t\t_matrix, _applyRecursively, _setApplyMatrix))) {\n\t\t\tvar pivot = this._pivot;\n\t\t\tif (pivot)\n\t\t\t\t_matrix._transformPoint(pivot, pivot, true);\n\t\t\t_matrix.reset(true);\n\t\t\tif (_setApplyMatrix && this._canApplyMatrix)\n\t\t\t\tthis._applyMatrix = true;\n\t\t}\n\t\tvar bounds = this._bounds,\n\t\t\tposition = this._position;\n\t\tif (transformMatrix || applyMatrix) {\n\t\t\tthis._changed(25);\n\t\t}\n\t\tvar decomp = transformMatrix && bounds && matrix.decompose();\n\t\tif (decomp && decomp.skewing.isZero() && decomp.rotation % 90 === 0) {\n\t\t\tfor (var key in bounds) {\n\t\t\t\tvar cache = bounds[key];\n\t\t\t\tif (cache.nonscaling) {\n\t\t\t\t\tdelete bounds[key];\n\t\t\t\t} else if (applyMatrix || !cache.internal) {\n\t\t\t\t\tvar rect = cache.rect;\n\t\t\t\t\tmatrix._transformBounds(rect, rect);\n\t\t\t\t}\n\t\t\t}\n\t\t\tthis._bounds = bounds;\n\t\t\tvar cached = bounds[this._getBoundsCacheKey(\n\t\t\t\tthis._boundsOptions || {})];\n\t\t\tif (cached) {\n\t\t\t\tthis._position = this._getPositionFromBounds(cached.rect);\n\t\t\t}\n\t\t} else if (transformMatrix && position && this._pivot) {\n\t\t\tthis._position = matrix._transformPoint(position, position);\n\t\t}\n\t\treturn this;\n\t},\n\n\t_transformContent: function(matrix, applyRecursively, setApplyMatrix) {\n\t\tvar children = this._children;\n\t\tif (children) {\n\t\t\tfor (var i = 0, l = children.length; i < l; i++) {\n\t\t\t\tchildren[i].transform(matrix, applyRecursively, setApplyMatrix);\n\t\t\t}\n\t\t\treturn true;\n\t\t}\n\t},\n\n\tglobalToLocal: function() {\n\t\treturn this.getGlobalMatrix(true)._inverseTransform(\n\t\t\t\tPoint.read(arguments));\n\t},\n\n\tlocalToGlobal: function() {\n\t\treturn this.getGlobalMatrix(true)._transformPoint(\n\t\t\t\tPoint.read(arguments));\n\t},\n\n\tparentToLocal: function() {\n\t\treturn this._matrix._inverseTransform(Point.read(arguments));\n\t},\n\n\tlocalToParent: function() {\n\t\treturn this._matrix._transformPoint(Point.read(arguments));\n\t},\n\n\tfitBounds: function(rectangle, fill) {\n\t\trectangle = Rectangle.read(arguments);\n\t\tvar bounds = this.getBounds(),\n\t\t\titemRatio = bounds.height / bounds.width,\n\t\t\trectRatio = rectangle.height / rectangle.width,\n\t\t\tscale = (fill ? itemRatio > rectRatio : itemRatio < rectRatio)\n\t\t\t\t\t? rectangle.width / bounds.width\n\t\t\t\t\t: rectangle.height / bounds.height,\n\t\t\tnewBounds = new Rectangle(new Point(),\n\t\t\t\t\tnew Size(bounds.width * scale, bounds.height * scale));\n\t\tnewBounds.setCenter(rectangle.getCenter());\n\t\tthis.setBounds(newBounds);\n\t}\n}), {\n\n\t_setStyles: function(ctx, param, viewMatrix) {\n\t\tvar style = this._style,\n\t\t\tmatrix = this._matrix;\n\t\tif (style.hasFill()) {\n\t\t\tctx.fillStyle = style.getFillColor().toCanvasStyle(ctx, matrix);\n\t\t}\n\t\tif (style.hasStroke()) {\n\t\t\tctx.strokeStyle = style.getStrokeColor().toCanvasStyle(ctx, matrix);\n\t\t\tctx.lineWidth = style.getStrokeWidth();\n\t\t\tvar strokeJoin = style.getStrokeJoin(),\n\t\t\t\tstrokeCap = style.getStrokeCap(),\n\t\t\t\tmiterLimit = style.getMiterLimit();\n\t\t\tif (strokeJoin)\n\t\t\t\tctx.lineJoin = strokeJoin;\n\t\t\tif (strokeCap)\n\t\t\t\tctx.lineCap = strokeCap;\n\t\t\tif (miterLimit)\n\t\t\t\tctx.miterLimit = miterLimit;\n\t\t\tif (paper.support.nativeDash) {\n\t\t\t\tvar dashArray = style.getDashArray(),\n\t\t\t\t\tdashOffset = style.getDashOffset();\n\t\t\t\tif (dashArray && dashArray.length) {\n\t\t\t\t\tif ('setLineDash' in ctx) {\n\t\t\t\t\t\tctx.setLineDash(dashArray);\n\t\t\t\t\t\tctx.lineDashOffset = dashOffset;\n\t\t\t\t\t} else {\n\t\t\t\t\t\tctx.mozDash = dashArray;\n\t\t\t\t\t\tctx.mozDashOffset = dashOffset;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tif (style.hasShadow()) {\n\t\t\tvar pixelRatio = param.pixelRatio || 1,\n\t\t\t\tmx = viewMatrix._shiftless().prepend(\n\t\t\t\t\tnew Matrix().scale(pixelRatio, pixelRatio)),\n\t\t\t\tblur = mx.transform(new Point(style.getShadowBlur(), 0)),\n\t\t\t\toffset = mx.transform(this.getShadowOffset());\n\t\t\tctx.shadowColor = style.getShadowColor().toCanvasStyle(ctx);\n\t\t\tctx.shadowBlur = blur.getLength();\n\t\t\tctx.shadowOffsetX = offset.x;\n\t\t\tctx.shadowOffsetY = offset.y;\n\t\t}\n\t},\n\n\tdraw: function(ctx, param, parentStrokeMatrix) {\n\t\tvar updateVersion = this._updateVersion = this._project._updateVersion;\n\t\tif (!this._visible || this._opacity === 0)\n\t\t\treturn;\n\t\tvar matrices = param.matrices,\n\t\t\tviewMatrix = param.viewMatrix,\n\t\t\tmatrix = this._matrix,\n\t\t\tglobalMatrix = matrices[matrices.length - 1].appended(matrix);\n\t\tif (!globalMatrix.isInvertible())\n\t\t\treturn;\n\n\t\tviewMatrix = viewMatrix ? viewMatrix.appended(globalMatrix)\n\t\t\t\t: globalMatrix;\n\n\t\tmatrices.push(globalMatrix);\n\t\tif (param.updateMatrix) {\n\t\t\tthis._globalMatrix = globalMatrix;\n\t\t}\n\n\t\tvar blendMode = this._blendMode,\n\t\t\topacity = Numerical.clamp(this._opacity, 0, 1),\n\t\t\tnormalBlend = blendMode === 'normal',\n\t\t\tnativeBlend = BlendMode.nativeModes[blendMode],\n\t\t\tdirect = normalBlend && opacity === 1\n\t\t\t\t\t|| param.dontStart\n\t\t\t\t\t|| param.clip\n\t\t\t\t\t|| (nativeBlend || normalBlend && opacity < 1)\n\t\t\t\t\t\t&& this._canComposite(),\n\t\t\tpixelRatio = param.pixelRatio || 1,\n\t\t\tmainCtx, itemOffset, prevOffset;\n\t\tif (!direct) {\n\t\t\tvar bounds = this.getStrokeBounds(viewMatrix);\n\t\t\tif (!bounds.width || !bounds.height) {\n\t\t\t\tmatrices.pop();\n\t\t\t\treturn;\n\t\t\t}\n\t\t\tprevOffset = param.offset;\n\t\t\titemOffset = param.offset = bounds.getTopLeft().floor();\n\t\t\tmainCtx = ctx;\n\t\t\tctx = CanvasProvider.getContext(bounds.getSize().ceil().add(1)\n\t\t\t\t\t.multiply(pixelRatio));\n\t\t\tif (pixelRatio !== 1)\n\t\t\t\tctx.scale(pixelRatio, pixelRatio);\n\t\t}\n\t\tctx.save();\n\t\tvar strokeMatrix = parentStrokeMatrix\n\t\t\t\t? parentStrokeMatrix.appended(matrix)\n\t\t\t\t: this._canScaleStroke && !this.getStrokeScaling(true)\n\t\t\t\t\t&& viewMatrix,\n\t\t\tclip = !direct && param.clipItem,\n\t\t\ttransform = !strokeMatrix || clip;\n\t\tif (direct) {\n\t\t\tctx.globalAlpha = opacity;\n\t\t\tif (nativeBlend)\n\t\t\t\tctx.globalCompositeOperation = blendMode;\n\t\t} else if (transform) {\n\t\t\tctx.translate(-itemOffset.x, -itemOffset.y);\n\t\t}\n\t\tif (transform) {\n\t\t\t(direct ? matrix : viewMatrix).applyToContext(ctx);\n\t\t}\n\t\tif (clip) {\n\t\t\tparam.clipItem.draw(ctx, param.extend({ clip: true }));\n\t\t}\n\t\tif (strokeMatrix) {\n\t\t\tctx.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0);\n\t\t\tvar offset = param.offset;\n\t\t\tif (offset)\n\t\t\t\tctx.translate(-offset.x, -offset.y);\n\t\t}\n\t\tthis._draw(ctx, param, viewMatrix, strokeMatrix);\n\t\tctx.restore();\n\t\tmatrices.pop();\n\t\tif (param.clip && !param.dontFinish) {\n\t\t\tctx.clip(this.getFillRule());\n\t\t}\n\t\tif (!direct) {\n\t\t\tBlendMode.process(blendMode, ctx, mainCtx, opacity,\n\t\t\t\t\titemOffset.subtract(prevOffset).multiply(pixelRatio));\n\t\t\tCanvasProvider.release(ctx);\n\t\t\tparam.offset = prevOffset;\n\t\t}\n\t},\n\n\t_isUpdated: function(updateVersion) {\n\t\tvar parent = this._parent;\n\t\tif (parent instanceof CompoundPath)\n\t\t\treturn parent._isUpdated(updateVersion);\n\t\tvar updated = this._updateVersion === updateVersion;\n\t\tif (!updated && parent && parent._visible\n\t\t\t\t&& parent._isUpdated(updateVersion)) {\n\t\t\tthis._updateVersion = updateVersion;\n\t\t\tupdated = true;\n\t\t}\n\t\treturn updated;\n\t},\n\n\t_drawSelection: function(ctx, matrix, size, selectionItems, updateVersion) {\n\t\tvar selection = this._selection,\n\t\t\titemSelected = selection & 1,\n\t\t\tboundsSelected = selection & 2\n\t\t\t\t\t|| itemSelected && this._selectBounds,\n\t\t\tpositionSelected = selection & 4;\n\t\tif (!this._drawSelected)\n\t\t\titemSelected = false;\n\t\tif ((itemSelected || boundsSelected || positionSelected)\n\t\t\t\t&& this._isUpdated(updateVersion)) {\n\t\t\tvar layer,\n\t\t\t\tcolor = this.getSelectedColor(true) || (layer = this.getLayer())\n\t\t\t\t\t&& layer.getSelectedColor(true),\n\t\t\t\tmx = matrix.appended(this.getGlobalMatrix(true)),\n\t\t\t\thalf = size / 2;\n\t\t\tctx.strokeStyle = ctx.fillStyle = color\n\t\t\t\t\t? color.toCanvasStyle(ctx) : '#009dec';\n\t\t\tif (itemSelected)\n\t\t\t\tthis._drawSelected(ctx, mx, selectionItems);\n\t\t\tif (positionSelected) {\n\t\t\t\tvar pos = this.getPosition(true),\n\t\t\t\t\tparent = this._parent,\n\t\t\t\t\tpoint = parent ? parent.localToGlobal(pos) : pos,\n\t\t\t\t\tx = point.x,\n\t\t\t\t\ty = point.y;\n\t\t\t\tctx.beginPath();\n\t\t\t\tctx.arc(x, y, half, 0, Math.PI * 2, true);\n\t\t\t\tctx.stroke();\n\t\t\t\tvar deltas = [[0, -1], [1, 0], [0, 1], [-1, 0]],\n\t\t\t\t\tstart = half,\n\t\t\t\t\tend = size + 1;\n\t\t\t\tfor (var i = 0; i < 4; i++) {\n\t\t\t\t\tvar delta = deltas[i],\n\t\t\t\t\t\tdx = delta[0],\n\t\t\t\t\t\tdy = delta[1];\n\t\t\t\t\tctx.moveTo(x + dx * start, y + dy * start);\n\t\t\t\t\tctx.lineTo(x + dx * end, y + dy * end);\n\t\t\t\t\tctx.stroke();\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (boundsSelected) {\n\t\t\t\tvar coords = mx._transformCorners(this.getInternalBounds());\n\t\t\t\tctx.beginPath();\n\t\t\t\tfor (var i = 0; i < 8; i++) {\n\t\t\t\t\tctx[!i ? 'moveTo' : 'lineTo'](coords[i], coords[++i]);\n\t\t\t\t}\n\t\t\t\tctx.closePath();\n\t\t\t\tctx.stroke();\n\t\t\t\tfor (var i = 0; i < 8; i++) {\n\t\t\t\t\tctx.fillRect(coords[i] - half, coords[++i] - half,\n\t\t\t\t\t\t\tsize, size);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\t_canComposite: function() {\n\t\treturn false;\n\t}\n}, Base.each(['down', 'drag', 'up', 'move'], function(key) {\n\tthis['removeOn' + Base.capitalize(key)] = function() {\n\t\tvar hash = {};\n\t\thash[key] = true;\n\t\treturn this.removeOn(hash);\n\t};\n}, {\n\n\tremoveOn: function(obj) {\n\t\tfor (var name in obj) {\n\t\t\tif (obj[name]) {\n\t\t\t\tvar key = 'mouse' + name,\n\t\t\t\t\tproject = this._project,\n\t\t\t\t\tsets = project._removeSets = project._removeSets || {};\n\t\t\t\tsets[key] = sets[key] || {};\n\t\t\t\tsets[key][this._id] = this;\n\t\t\t}\n\t\t}\n\t\treturn this;\n\t}\n}), {\n\ttween: function(from, to, options) {\n\t\tif (!options) {\n\t\t\toptions = to;\n\t\t\tto = from;\n\t\t\tfrom = null;\n\t\t\tif (!options) {\n\t\t\t\toptions = to;\n\t\t\t\tto = null;\n\t\t\t}\n\t\t}\n\t\tvar easing = options && options.easing,\n\t\t\tstart = options && options.start,\n\t\t\tduration = options != null && (\n\t\t\t\ttypeof options === 'number' ? options : options.duration\n\t\t\t),\n\t\t\ttween = new Tween(this, from, to, duration, easing, start);\n\t\tfunction onFrame(event) {\n\t\t\ttween._handleFrame(event.time * 1000);\n\t\t\tif (!tween.running) {\n\t\t\t\tthis.off('frame', onFrame);\n\t\t\t}\n\t\t}\n\t\tif (duration) {\n\t\t\tthis.on('frame', onFrame);\n\t\t}\n\t\treturn tween;\n\t},\n\n\ttweenTo: function(to, options) {\n\t\treturn this.tween(null, to, options);\n\t},\n\n\ttweenFrom: function(from, options) {\n\t\treturn this.tween(from, null, options);\n\t}\n});\n\nvar Group = Item.extend({\n\t_class: 'Group',\n\t_selectBounds: false,\n\t_selectChildren: true,\n\t_serializeFields: {\n\t\tchildren: []\n\t},\n\n\tinitialize: function Group(arg) {\n\t\tthis._children = [];\n\t\tthis._namedChildren = {};\n\t\tif (!this._initialize(arg))\n\t\t\tthis.addChildren(Array.isArray(arg) ? arg : arguments);\n\t},\n\n\t_changed: function _changed(flags) {\n\t\t_changed.base.call(this, flags);\n\t\tif (flags & 2050) {\n\t\t\tthis._clipItem = undefined;\n\t\t}\n\t},\n\n\t_getClipItem: function() {\n\t\tvar clipItem = this._clipItem;\n\t\tif (clipItem === undefined) {\n\t\t\tclipItem = null;\n\t\t\tvar children = this._children;\n\t\t\tfor (var i = 0, l = children.length; i < l; i++) {\n\t\t\t\tif (children[i]._clipMask) {\n\t\t\t\t\tclipItem = children[i];\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t\tthis._clipItem = clipItem;\n\t\t}\n\t\treturn clipItem;\n\t},\n\n\tisClipped: function() {\n\t\treturn !!this._getClipItem();\n\t},\n\n\tsetClipped: function(clipped) {\n\t\tvar child = this.getFirstChild();\n\t\tif (child)\n\t\t\tchild.setClipMask(clipped);\n\t},\n\n\t_getBounds: function _getBounds(matrix, options) {\n\t\tvar clipItem = this._getClipItem();\n\t\treturn clipItem\n\t\t\t? clipItem._getCachedBounds(clipItem._matrix.prepended(matrix),\n\t\t\t\tBase.set({}, options, { stroke: false }))\n\t\t\t: _getBounds.base.call(this, matrix, options);\n\t},\n\n\t_hitTestChildren: function _hitTestChildren(point, options, viewMatrix) {\n\t\tvar clipItem = this._getClipItem();\n\t\treturn (!clipItem || clipItem.contains(point))\n\t\t\t\t&& _hitTestChildren.base.call(this, point, options, viewMatrix,\n\t\t\t\t\tclipItem);\n\t},\n\n\t_draw: function(ctx, param) {\n\t\tvar clip = param.clip,\n\t\t\tclipItem = !clip && this._getClipItem();\n\t\tparam = param.extend({ clipItem: clipItem, clip: false });\n\t\tif (clip) {\n\t\t\tctx.beginPath();\n\t\t\tparam.dontStart = param.dontFinish = true;\n\t\t} else if (clipItem) {\n\t\t\tclipItem.draw(ctx, param.extend({ clip: true }));\n\t\t}\n\t\tvar children = this._children;\n\t\tfor (var i = 0, l = children.length; i < l; i++) {\n\t\t\tvar item = children[i];\n\t\t\tif (item !== clipItem)\n\t\t\t\titem.draw(ctx, param);\n\t\t}\n\t}\n});\n\nvar Layer = Group.extend({\n\t_class: 'Layer',\n\n\tinitialize: function Layer() {\n\t\tGroup.apply(this, arguments);\n\t},\n\n\t_getOwner: function() {\n\t\treturn this._parent || this._index != null && this._project;\n\t},\n\n\tisInserted: function isInserted() {\n\t\treturn this._parent ? isInserted.base.call(this) : this._index != null;\n\t},\n\n\tactivate: function() {\n\t\tthis._project._activeLayer = this;\n\t},\n\n\t_hitTestSelf: function() {\n\t}\n});\n\nvar Shape = Item.extend({\n\t_class: 'Shape',\n\t_applyMatrix: false,\n\t_canApplyMatrix: false,\n\t_canScaleStroke: true,\n\t_serializeFields: {\n\t\ttype: null,\n\t\tsize: null,\n\t\tradius: null\n\t},\n\n\tinitialize: function Shape(props, point) {\n\t\tthis._initialize(props, point);\n\t},\n\n\t_equals: function(item) {\n\t\treturn this._type === item._type\n\t\t\t&& this._size.equals(item._size)\n\t\t\t&& Base.equals(this._radius, item._radius);\n\t},\n\n\tcopyContent: function(source) {\n\t\tthis.setType(source._type);\n\t\tthis.setSize(source._size);\n\t\tthis.setRadius(source._radius);\n\t},\n\n\tgetType: function() {\n\t\treturn this._type;\n\t},\n\n\tsetType: function(type) {\n\t\tthis._type = type;\n\t},\n\n\tgetShape: '#getType',\n\tsetShape: '#setType',\n\n\tgetSize: function() {\n\t\tvar size = this._size;\n\t\treturn new LinkedSize(size.width, size.height, this, 'setSize');\n\t},\n\n\tsetSize: function() {\n\t\tvar size = Size.read(arguments);\n\t\tif (!this._size) {\n\t\t\tthis._size = size.clone();\n\t\t} else if (!this._size.equals(size)) {\n\t\t\tvar type = this._type,\n\t\t\t\twidth = size.width,\n\t\t\t\theight = size.height;\n\t\t\tif (type === 'rectangle') {\n\t\t\t\tthis._radius.set(Size.min(this._radius, size.divide(2).abs()));\n\t\t\t} else if (type === 'circle') {\n\t\t\t\twidth = height = (width + height) / 2;\n\t\t\t\tthis._radius = width / 2;\n\t\t\t} else if (type === 'ellipse') {\n\t\t\t\tthis._radius._set(width / 2, height / 2);\n\t\t\t}\n\t\t\tthis._size._set(width, height);\n\t\t\tthis._changed(9);\n\t\t}\n\t},\n\n\tgetRadius: function() {\n\t\tvar rad = this._radius;\n\t\treturn this._type === 'circle'\n\t\t\t\t? rad\n\t\t\t\t: new LinkedSize(rad.width, rad.height, this, 'setRadius');\n\t},\n\n\tsetRadius: function(radius) {\n\t\tvar type = this._type;\n\t\tif (type === 'circle') {\n\t\t\tif (radius === this._radius)\n\t\t\t\treturn;\n\t\t\tvar size = radius * 2;\n\t\t\tthis._radius = radius;\n\t\t\tthis._size._set(size, size);\n\t\t} else {\n\t\t\tradius = Size.read(arguments);\n\t\t\tif (!this._radius) {\n\t\t\t\tthis._radius = radius.clone();\n\t\t\t} else {\n\t\t\t\tif (this._radius.equals(radius))\n\t\t\t\t\treturn;\n\t\t\t\tthis._radius.set(radius);\n\t\t\t\tif (type === 'rectangle') {\n\t\t\t\t\tvar size = Size.max(this._size, radius.multiply(2));\n\t\t\t\t\tthis._size.set(size);\n\t\t\t\t} else if (type === 'ellipse') {\n\t\t\t\t\tthis._size._set(radius.width * 2, radius.height * 2);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tthis._changed(9);\n\t},\n\n\tisEmpty: function() {\n\t\treturn false;\n\t},\n\n\ttoPath: function(insert) {\n\t\tvar path = new Path[Base.capitalize(this._type)]({\n\t\t\tcenter: new Point(),\n\t\t\tsize: this._size,\n\t\t\tradius: this._radius,\n\t\t\tinsert: false\n\t\t});\n\t\tpath.copyAttributes(this);\n\t\tif (paper.settings.applyMatrix)\n\t\t\tpath.setApplyMatrix(true);\n\t\tif (insert === undefined || insert)\n\t\t\tpath.insertAbove(this);\n\t\treturn path;\n\t},\n\n\ttoShape: '#clone',\n\n\t_asPathItem: function() {\n\t\treturn this.toPath(false);\n\t},\n\n\t_draw: function(ctx, param, viewMatrix, strokeMatrix) {\n\t\tvar style = this._style,\n\t\t\thasFill = style.hasFill(),\n\t\t\thasStroke = style.hasStroke(),\n\t\t\tdontPaint = param.dontFinish || param.clip,\n\t\t\tuntransformed = !strokeMatrix;\n\t\tif (hasFill || hasStroke || dontPaint) {\n\t\t\tvar type = this._type,\n\t\t\t\tradius = this._radius,\n\t\t\t\tisCircle = type === 'circle';\n\t\t\tif (!param.dontStart)\n\t\t\t\tctx.beginPath();\n\t\t\tif (untransformed && isCircle) {\n\t\t\t\tctx.arc(0, 0, radius, 0, Math.PI * 2, true);\n\t\t\t} else {\n\t\t\t\tvar rx = isCircle ? radius : radius.width,\n\t\t\t\t\try = isCircle ? radius : radius.height,\n\t\t\t\t\tsize = this._size,\n\t\t\t\t\twidth = size.width,\n\t\t\t\t\theight = size.height;\n\t\t\t\tif (untransformed && type === 'rectangle' && rx === 0 && ry === 0) {\n\t\t\t\t\tctx.rect(-width / 2, -height / 2, width, height);\n\t\t\t\t} else {\n\t\t\t\t\tvar x = width / 2,\n\t\t\t\t\t\ty = height / 2,\n\t\t\t\t\t\tkappa = 1 - 0.5522847498307936,\n\t\t\t\t\t\tcx = rx * kappa,\n\t\t\t\t\t\tcy = ry * kappa,\n\t\t\t\t\t\tc = [\n\t\t\t\t\t\t\t-x, -y + ry,\n\t\t\t\t\t\t\t-x, -y + cy,\n\t\t\t\t\t\t\t-x + cx, -y,\n\t\t\t\t\t\t\t-x + rx, -y,\n\t\t\t\t\t\t\tx - rx, -y,\n\t\t\t\t\t\t\tx - cx, -y,\n\t\t\t\t\t\t\tx, -y + cy,\n\t\t\t\t\t\t\tx, -y + ry,\n\t\t\t\t\t\t\tx, y - ry,\n\t\t\t\t\t\t\tx, y - cy,\n\t\t\t\t\t\t\tx - cx, y,\n\t\t\t\t\t\t\tx - rx, y,\n\t\t\t\t\t\t\t-x + rx, y,\n\t\t\t\t\t\t\t-x + cx, y,\n\t\t\t\t\t\t\t-x, y - cy,\n\t\t\t\t\t\t\t-x, y - ry\n\t\t\t\t\t\t];\n\t\t\t\t\tif (strokeMatrix)\n\t\t\t\t\t\tstrokeMatrix.transform(c, c, 32);\n\t\t\t\t\tctx.moveTo(c[0], c[1]);\n\t\t\t\t\tctx.bezierCurveTo(c[2], c[3], c[4], c[5], c[6], c[7]);\n\t\t\t\t\tif (x !== rx)\n\t\t\t\t\t\tctx.lineTo(c[8], c[9]);\n\t\t\t\t\tctx.bezierCurveTo(c[10], c[11], c[12], c[13], c[14], c[15]);\n\t\t\t\t\tif (y !== ry)\n\t\t\t\t\t\tctx.lineTo(c[16], c[17]);\n\t\t\t\t\tctx.bezierCurveTo(c[18], c[19], c[20], c[21], c[22], c[23]);\n\t\t\t\t\tif (x !== rx)\n\t\t\t\t\t\tctx.lineTo(c[24], c[25]);\n\t\t\t\t\tctx.bezierCurveTo(c[26], c[27], c[28], c[29], c[30], c[31]);\n\t\t\t\t}\n\t\t\t}\n\t\t\tctx.closePath();\n\t\t}\n\t\tif (!dontPaint && (hasFill || hasStroke)) {\n\t\t\tthis._setStyles(ctx, param, viewMatrix);\n\t\t\tif (hasFill) {\n\t\t\t\tctx.fill(style.getFillRule());\n\t\t\t\tctx.shadowColor = 'rgba(0,0,0,0)';\n\t\t\t}\n\t\t\tif (hasStroke)\n\t\t\t\tctx.stroke();\n\t\t}\n\t},\n\n\t_canComposite: function() {\n\t\treturn !(this.hasFill() && this.hasStroke());\n\t},\n\n\t_getBounds: function(matrix, options) {\n\t\tvar rect = new Rectangle(this._size).setCenter(0, 0),\n\t\t\tstyle = this._style,\n\t\t\tstrokeWidth = options.stroke && style.hasStroke()\n\t\t\t\t\t&& style.getStrokeWidth();\n\t\tif (matrix)\n\t\t\trect = matrix._transformBounds(rect);\n\t\treturn strokeWidth\n\t\t\t\t? rect.expand(Path._getStrokePadding(strokeWidth,\n\t\t\t\t\tthis._getStrokeMatrix(matrix, options)))\n\t\t\t\t: rect;\n\t}\n},\nnew function() {\n\tfunction getCornerCenter(that, point, expand) {\n\t\tvar radius = that._radius;\n\t\tif (!radius.isZero()) {\n\t\t\tvar halfSize = that._size.divide(2);\n\t\t\tfor (var q = 1; q <= 4; q++) {\n\t\t\t\tvar dir = new Point(q > 1 && q < 4 ? -1 : 1, q > 2 ? -1 : 1),\n\t\t\t\t\tcorner = dir.multiply(halfSize),\n\t\t\t\t\tcenter = corner.subtract(dir.multiply(radius)),\n\t\t\t\t\trect = new Rectangle(\n\t\t\t\t\t\t\texpand ? corner.add(dir.multiply(expand)) : corner,\n\t\t\t\t\t\t\tcenter);\n\t\t\t\tif (rect.contains(point))\n\t\t\t\t\treturn { point: center, quadrant: q };\n\t\t\t}\n\t\t}\n\t}\n\n\tfunction isOnEllipseStroke(point, radius, padding, quadrant) {\n\t\tvar vector = point.divide(radius);\n\t\treturn (!quadrant || vector.isInQuadrant(quadrant)) &&\n\t\t\t\tvector.subtract(vector.normalize()).multiply(radius)\n\t\t\t\t\t.divide(padding).length <= 1;\n\t}\n\n\treturn {\n\t\t_contains: function _contains(point) {\n\t\t\tif (this._type === 'rectangle') {\n\t\t\t\tvar center = getCornerCenter(this, point);\n\t\t\t\treturn center\n\t\t\t\t\t\t? point.subtract(center.point).divide(this._radius)\n\t\t\t\t\t\t\t.getLength() <= 1\n\t\t\t\t\t\t: _contains.base.call(this, point);\n\t\t\t} else {\n\t\t\t\treturn point.divide(this.size).getLength() <= 0.5;\n\t\t\t}\n\t\t},\n\n\t\t_hitTestSelf: function _hitTestSelf(point, options, viewMatrix,\n\t\t\t\tstrokeMatrix) {\n\t\t\tvar hit = false,\n\t\t\t\tstyle = this._style,\n\t\t\t\thitStroke = options.stroke && style.hasStroke(),\n\t\t\t\thitFill = options.fill && style.hasFill();\n\t\t\tif (hitStroke || hitFill) {\n\t\t\t\tvar type = this._type,\n\t\t\t\t\tradius = this._radius,\n\t\t\t\t\tstrokeRadius = hitStroke ? style.getStrokeWidth() / 2 : 0,\n\t\t\t\t\tstrokePadding = options._tolerancePadding.add(\n\t\t\t\t\t\tPath._getStrokePadding(strokeRadius,\n\t\t\t\t\t\t\t!style.getStrokeScaling() && strokeMatrix));\n\t\t\t\tif (type === 'rectangle') {\n\t\t\t\t\tvar padding = strokePadding.multiply(2),\n\t\t\t\t\t\tcenter = getCornerCenter(this, point, padding);\n\t\t\t\t\tif (center) {\n\t\t\t\t\t\thit = isOnEllipseStroke(point.subtract(center.point),\n\t\t\t\t\t\t\t\tradius, strokePadding, center.quadrant);\n\t\t\t\t\t} else {\n\t\t\t\t\t\tvar rect = new Rectangle(this._size).setCenter(0, 0),\n\t\t\t\t\t\t\touter = rect.expand(padding),\n\t\t\t\t\t\t\tinner = rect.expand(padding.negate());\n\t\t\t\t\t\thit = outer._containsPoint(point)\n\t\t\t\t\t\t\t\t&& !inner._containsPoint(point);\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\thit = isOnEllipseStroke(point, radius, strokePadding);\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn hit ? new HitResult(hitStroke ? 'stroke' : 'fill', this)\n\t\t\t\t\t: _hitTestSelf.base.apply(this, arguments);\n\t\t}\n\t};\n}, {\n\nstatics: new function() {\n\tfunction createShape(type, point, size, radius, args) {\n\t\tvar item = Base.create(Shape.prototype);\n\t\titem._type = type;\n\t\titem._size = size;\n\t\titem._radius = radius;\n\t\titem._initialize(Base.getNamed(args), point);\n\t\treturn item;\n\t}\n\n\treturn {\n\t\tCircle: function() {\n\t\t\tvar args = arguments,\n\t\t\t\tcenter = Point.readNamed(args, 'center'),\n\t\t\t\tradius = Base.readNamed(args, 'radius');\n\t\t\treturn createShape('circle', center, new Size(radius * 2), radius,\n\t\t\t\t\targs);\n\t\t},\n\n\t\tRectangle: function() {\n\t\t\tvar args = arguments,\n\t\t\t\trect = Rectangle.readNamed(args, 'rectangle'),\n\t\t\t\tradius = Size.min(Size.readNamed(args, 'radius'),\n\t\t\t\t\t\trect.getSize(true).divide(2));\n\t\t\treturn createShape('rectangle', rect.getCenter(true),\n\t\t\t\t\trect.getSize(true), radius, args);\n\t\t},\n\n\t\tEllipse: function() {\n\t\t\tvar args = arguments,\n\t\t\t\tellipse = Shape._readEllipse(args),\n\t\t\t\tradius = ellipse.radius;\n\t\t\treturn createShape('ellipse', ellipse.center, radius.multiply(2),\n\t\t\t\t\tradius, args);\n\t\t},\n\n\t\t_readEllipse: function(args) {\n\t\t\tvar center,\n\t\t\t\tradius;\n\t\t\tif (Base.hasNamed(args, 'radius')) {\n\t\t\t\tcenter = Point.readNamed(args, 'center');\n\t\t\t\tradius = Size.readNamed(args, 'radius');\n\t\t\t} else {\n\t\t\t\tvar rect = Rectangle.readNamed(args, 'rectangle');\n\t\t\t\tcenter = rect.getCenter(true);\n\t\t\t\tradius = rect.getSize(true).divide(2);\n\t\t\t}\n\t\t\treturn { center: center, radius: radius };\n\t\t}\n\t};\n}});\n\nvar Raster = Item.extend({\n\t_class: 'Raster',\n\t_applyMatrix: false,\n\t_canApplyMatrix: false,\n\t_boundsOptions: { stroke: false, handle: false },\n\t_serializeFields: {\n\t\tcrossOrigin: null,\n\t\tsource: null\n\t},\n\t_prioritize: ['crossOrigin'],\n\t_smoothing: 'low',\n\tbeans: true,\n\n\tinitialize: function Raster(source, position) {\n\t\tif (!this._initialize(source,\n\t\t\t\tposition !== undefined && Point.read(arguments))) {\n\t\t\tvar image,\n\t\t\t\ttype = typeof source,\n\t\t\t\tobject = type === 'string'\n\t\t\t\t\t? document.getElementById(source)\n\t\t\t\t\t: type === 'object'\n\t\t\t\t\t\t? source\n\t\t\t\t\t\t: null;\n\t\t\tif (object && object !== Item.NO_INSERT) {\n\t\t\t\tif (object.getContext || object.naturalHeight != null) {\n\t\t\t\t\timage = object;\n\t\t\t\t} else if (object) {\n\t\t\t\t\tvar size = Size.read(arguments);\n\t\t\t\t\tif (!size.isZero()) {\n\t\t\t\t\t\timage = CanvasProvider.getCanvas(size);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (image) {\n\t\t\t\tthis.setImage(image);\n\t\t\t} else {\n\t\t\t\tthis.setSource(source);\n\t\t\t}\n\t\t}\n\t\tif (!this._size) {\n\t\t\tthis._size = new Size();\n\t\t\tthis._loaded = false;\n\t\t}\n\t},\n\n\t_equals: function(item) {\n\t\treturn this.getSource() === item.getSource();\n\t},\n\n\tcopyContent: function(source) {\n\t\tvar image = source._image,\n\t\t\tcanvas = source._canvas;\n\t\tif (image) {\n\t\t\tthis._setImage(image);\n\t\t} else if (canvas) {\n\t\t\tvar copyCanvas = CanvasProvider.getCanvas(source._size);\n\t\t\tcopyCanvas.getContext('2d').drawImage(canvas, 0, 0);\n\t\t\tthis._setImage(copyCanvas);\n\t\t}\n\t\tthis._crossOrigin = source._crossOrigin;\n\t},\n\n\tgetSize: function() {\n\t\tvar size = this._size;\n\t\treturn new LinkedSize(size ? size.width : 0, size ? size.height : 0,\n\t\t\t\tthis, 'setSize');\n\t},\n\n\tsetSize: function(_size, _clear) {\n\t\tvar size = Size.read(arguments);\n\t\tif (!size.equals(this._size)) {\n\t\t\tif (size.width > 0 && size.height > 0) {\n\t\t\t\tvar element = !_clear && this.getElement();\n\t\t\t\tthis._setImage(CanvasProvider.getCanvas(size));\n\t\t\t\tif (element) {\n\t\t\t\t\tthis.getContext(true).drawImage(element, 0, 0,\n\t\t\t\t\t\t\tsize.width, size.height);\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tif (this._canvas)\n\t\t\t\t\tCanvasProvider.release(this._canvas);\n\t\t\t\tthis._size = size.clone();\n\t\t\t}\n\t\t} else if (_clear) {\n\t\t\tthis.clear();\n\t\t}\n\t},\n\n\tgetWidth: function() {\n\t\treturn this._size ? this._size.width : 0;\n\t},\n\n\tsetWidth: function(width) {\n\t\tthis.setSize(width, this.getHeight());\n\t},\n\n\tgetHeight: function() {\n\t\treturn this._size ? this._size.height : 0;\n\t},\n\n\tsetHeight: function(height) {\n\t\tthis.setSize(this.getWidth(), height);\n\t},\n\n\tgetLoaded: function() {\n\t\treturn this._loaded;\n\t},\n\n\tisEmpty: function() {\n\t\tvar size = this._size;\n\t\treturn !size || size.width === 0 && size.height === 0;\n\t},\n\n\tgetResolution: function() {\n\t\tvar matrix = this._matrix,\n\t\t\torig = new Point(0, 0).transform(matrix),\n\t\t\tu = new Point(1, 0).transform(matrix).subtract(orig),\n\t\t\tv = new Point(0, 1).transform(matrix).subtract(orig);\n\t\treturn new Size(\n\t\t\t72 / u.getLength(),\n\t\t\t72 / v.getLength()\n\t\t);\n\t},\n\n\tgetPpi: '#getResolution',\n\n\tgetImage: function() {\n\t\treturn this._image;\n\t},\n\n\tsetImage: function(image) {\n\t\tvar that = this;\n\n\t\tfunction emit(event) {\n\t\t\tvar view = that.getView(),\n\t\t\t\ttype = event && event.type || 'load';\n\t\t\tif (view && that.responds(type)) {\n\t\t\t\tpaper = view._scope;\n\t\t\t\tthat.emit(type, new Event(event));\n\t\t\t}\n\t\t}\n\n\t\tthis._setImage(image);\n\t\tif (this._loaded) {\n\t\t\tsetTimeout(emit, 0);\n\t\t} else if (image) {\n\t\t\tDomEvent.add(image, {\n\t\t\t\tload: function(event) {\n\t\t\t\t\tthat._setImage(image);\n\t\t\t\t\temit(event);\n\t\t\t\t},\n\t\t\t\terror: emit\n\t\t\t});\n\t\t}\n\t},\n\n\t_setImage: function(image) {\n\t\tif (this._canvas)\n\t\t\tCanvasProvider.release(this._canvas);\n\t\tif (image && image.getContext) {\n\t\t\tthis._image = null;\n\t\t\tthis._canvas = image;\n\t\t\tthis._loaded = true;\n\t\t} else {\n\t\t\tthis._image = image;\n\t\t\tthis._canvas = null;\n\t\t\tthis._loaded = !!(image && image.src && image.complete);\n\t\t}\n\t\tthis._size = new Size(\n\t\t\t\timage ? image.naturalWidth || image.width : 0,\n\t\t\t\timage ? image.naturalHeight || image.height : 0);\n\t\tthis._context = null;\n\t\tthis._changed(1033);\n\t},\n\n\tgetCanvas: function() {\n\t\tif (!this._canvas) {\n\t\t\tvar ctx = CanvasProvider.getContext(this._size);\n\t\t\ttry {\n\t\t\t\tif (this._image)\n\t\t\t\t\tctx.drawImage(this._image, 0, 0);\n\t\t\t\tthis._canvas = ctx.canvas;\n\t\t\t} catch (e) {\n\t\t\t\tCanvasProvider.release(ctx);\n\t\t\t}\n\t\t}\n\t\treturn this._canvas;\n\t},\n\n\tsetCanvas: '#setImage',\n\n\tgetContext: function(_change) {\n\t\tif (!this._context)\n\t\t\tthis._context = this.getCanvas().getContext('2d');\n\t\tif (_change) {\n\t\t\tthis._image = null;\n\t\t\tthis._changed(1025);\n\t\t}\n\t\treturn this._context;\n\t},\n\n\tsetContext: function(context) {\n\t\tthis._context = context;\n\t},\n\n\tgetSource: function() {\n\t\tvar image = this._image;\n\t\treturn image && image.src || this.toDataURL();\n\t},\n\n\tsetSource: function(src) {\n\t\tvar image = new self.Image(),\n\t\t\tcrossOrigin = this._crossOrigin;\n\t\tif (crossOrigin)\n\t\t\timage.crossOrigin = crossOrigin;\n\t\tif (src)\n\t\t\timage.src = src;\n\t\tthis.setImage(image);\n\t},\n\n\tgetCrossOrigin: function() {\n\t\tvar image = this._image;\n\t\treturn image && image.crossOrigin || this._crossOrigin || '';\n\t},\n\n\tsetCrossOrigin: function(crossOrigin) {\n\t\tthis._crossOrigin = crossOrigin;\n\t\tvar image = this._image;\n\t\tif (image)\n\t\t\timage.crossOrigin = crossOrigin;\n\t},\n\n\tgetSmoothing: function() {\n\t\treturn this._smoothing;\n\t},\n\n\tsetSmoothing: function(smoothing) {\n\t\tthis._smoothing = typeof smoothing === 'string'\n\t\t\t? smoothing\n\t\t\t: smoothing ? 'low' : 'off';\n\t\tthis._changed(257);\n\t},\n\n\tgetElement: function() {\n\t\treturn this._canvas || this._loaded && this._image;\n\t}\n}, {\n\tbeans: false,\n\n\tgetSubCanvas: function() {\n\t\tvar rect = Rectangle.read(arguments),\n\t\t\tctx = CanvasProvider.getContext(rect.getSize());\n\t\tctx.drawImage(this.getCanvas(), rect.x, rect.y,\n\t\t\t\trect.width, rect.height, 0, 0, rect.width, rect.height);\n\t\treturn ctx.canvas;\n\t},\n\n\tgetSubRaster: function() {\n\t\tvar rect = Rectangle.read(arguments),\n\t\t\traster = new Raster(Item.NO_INSERT);\n\t\traster._setImage(this.getSubCanvas(rect));\n\t\traster.translate(rect.getCenter().subtract(this.getSize().divide(2)));\n\t\traster._matrix.prepend(this._matrix);\n\t\traster.insertAbove(this);\n\t\treturn raster;\n\t},\n\n\ttoDataURL: function() {\n\t\tvar image = this._image,\n\t\t\tsrc = image && image.src;\n\t\tif (/^data:/.test(src))\n\t\t\treturn src;\n\t\tvar canvas = this.getCanvas();\n\t\treturn canvas ? canvas.toDataURL.apply(canvas, arguments) : null;\n\t},\n\n\tdrawImage: function(image ) {\n\t\tvar point = Point.read(arguments, 1);\n\t\tthis.getContext(true).drawImage(image, point.x, point.y);\n\t},\n\n\tgetAverageColor: function(object) {\n\t\tvar bounds, path;\n\t\tif (!object) {\n\t\t\tbounds = this.getBounds();\n\t\t} else if (object instanceof PathItem) {\n\t\t\tpath = object;\n\t\t\tbounds = object.getBounds();\n\t\t} else if (typeof object === 'object') {\n\t\t\tif ('width' in object) {\n\t\t\t\tbounds = new Rectangle(object);\n\t\t\t} else if ('x' in object) {\n\t\t\t\tbounds = new Rectangle(object.x - 0.5, object.y - 0.5, 1, 1);\n\t\t\t}\n\t\t}\n\t\tif (!bounds)\n\t\t\treturn null;\n\t\tvar sampleSize = 32,\n\t\t\twidth = Math.min(bounds.width, sampleSize),\n\t\t\theight = Math.min(bounds.height, sampleSize);\n\t\tvar ctx = Raster._sampleContext;\n\t\tif (!ctx) {\n\t\t\tctx = Raster._sampleContext = CanvasProvider.getContext(\n\t\t\t\t\tnew Size(sampleSize));\n\t\t} else {\n\t\t\tctx.clearRect(0, 0, sampleSize + 1, sampleSize + 1);\n\t\t}\n\t\tctx.save();\n\t\tvar matrix = new Matrix()\n\t\t\t\t.scale(width / bounds.width, height / bounds.height)\n\t\t\t\t.translate(-bounds.x, -bounds.y);\n\t\tmatrix.applyToContext(ctx);\n\t\tif (path)\n\t\t\tpath.draw(ctx, new Base({ clip: true, matrices: [matrix] }));\n\t\tthis._matrix.applyToContext(ctx);\n\t\tvar element = this.getElement(),\n\t\t\tsize = this._size;\n\t\tif (element)\n\t\t\tctx.drawImage(element, -size.width / 2, -size.height / 2);\n\t\tctx.restore();\n\t\tvar pixels = ctx.getImageData(0.5, 0.5, Math.ceil(width),\n\t\t\t\tMath.ceil(height)).data,\n\t\t\tchannels = [0, 0, 0],\n\t\t\ttotal = 0;\n\t\tfor (var i = 0, l = pixels.length; i < l; i += 4) {\n\t\t\tvar alpha = pixels[i + 3];\n\t\t\ttotal += alpha;\n\t\t\talpha /= 255;\n\t\t\tchannels[0] += pixels[i] * alpha;\n\t\t\tchannels[1] += pixels[i + 1] * alpha;\n\t\t\tchannels[2] += pixels[i + 2] * alpha;\n\t\t}\n\t\tfor (var i = 0; i < 3; i++)\n\t\t\tchannels[i] /= total;\n\t\treturn total ? Color.read(channels) : null;\n\t},\n\n\tgetPixel: function() {\n\t\tvar point = Point.read(arguments);\n\t\tvar data = this.getContext().getImageData(point.x, point.y, 1, 1).data;\n\t\treturn new Color('rgb', [data[0] / 255, data[1] / 255, data[2] / 255],\n\t\t\t\tdata[3] / 255);\n\t},\n\n\tsetPixel: function() {\n\t\tvar args = arguments,\n\t\t\tpoint = Point.read(args),\n\t\t\tcolor = Color.read(args),\n\t\t\tcomponents = color._convert('rgb'),\n\t\t\talpha = color._alpha,\n\t\t\tctx = this.getContext(true),\n\t\t\timageData = ctx.createImageData(1, 1),\n\t\t\tdata = imageData.data;\n\t\tdata[0] = components[0] * 255;\n\t\tdata[1] = components[1] * 255;\n\t\tdata[2] = components[2] * 255;\n\t\tdata[3] = alpha != null ? alpha * 255 : 255;\n\t\tctx.putImageData(imageData, point.x, point.y);\n\t},\n\n\tclear: function() {\n\t\tvar size = this._size;\n\t\tthis.getContext(true).clearRect(0, 0, size.width + 1, size.height + 1);\n\t},\n\n\tcreateImageData: function() {\n\t\tvar size = Size.read(arguments);\n\t\treturn this.getContext().createImageData(size.width, size.height);\n\t},\n\n\tgetImageData: function() {\n\t\tvar rect = Rectangle.read(arguments);\n\t\tif (rect.isEmpty())\n\t\t\trect = new Rectangle(this._size);\n\t\treturn this.getContext().getImageData(rect.x, rect.y,\n\t\t\t\trect.width, rect.height);\n\t},\n\n\tsetImageData: function(data ) {\n\t\tvar point = Point.read(arguments, 1);\n\t\tthis.getContext(true).putImageData(data, point.x, point.y);\n\t},\n\n\t_getBounds: function(matrix, options) {\n\t\tvar rect = new Rectangle(this._size).setCenter(0, 0);\n\t\treturn matrix ? matrix._transformBounds(rect) : rect;\n\t},\n\n\t_hitTestSelf: function(point) {\n\t\tif (this._contains(point)) {\n\t\t\tvar that = this;\n\t\t\treturn new HitResult('pixel', that, {\n\t\t\t\toffset: point.add(that._size.divide(2)).round(),\n\t\t\t\tcolor: {\n\t\t\t\t\tget: function() {\n\t\t\t\t\t\treturn that.getPixel(this.offset);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t});\n\t\t}\n\t},\n\n\t_draw: function(ctx, param, viewMatrix) {\n\t\tvar element = this.getElement();\n\t\tif (element && element.width > 0 && element.height > 0) {\n\t\t\tctx.globalAlpha = Numerical.clamp(this._opacity, 0, 1);\n\n\t\t\tthis._setStyles(ctx, param, viewMatrix);\n\n\t\t\tvar smoothing = this._smoothing,\n\t\t\t\tdisabled = smoothing === 'off';\n\t\t\tDomElement.setPrefixed(\n\t\t\t\tctx,\n\t\t\t\tdisabled ? 'imageSmoothingEnabled' : 'imageSmoothingQuality',\n\t\t\t\tdisabled ? false : smoothing\n\t\t\t);\n\n\t\t\tctx.drawImage(element,\n\t\t\t\t\t-this._size.width / 2, -this._size.height / 2);\n\t\t}\n\t},\n\n\t_canComposite: function() {\n\t\treturn true;\n\t}\n});\n\nvar SymbolItem = Item.extend({\n\t_class: 'SymbolItem',\n\t_applyMatrix: false,\n\t_canApplyMatrix: false,\n\t_boundsOptions: { stroke: true },\n\t_serializeFields: {\n\t\tsymbol: null\n\t},\n\n\tinitialize: function SymbolItem(arg0, arg1) {\n\t\tif (!this._initialize(arg0,\n\t\t\t\targ1 !== undefined && Point.read(arguments, 1)))\n\t\t\tthis.setDefinition(arg0 instanceof SymbolDefinition ?\n\t\t\t\t\targ0 : new SymbolDefinition(arg0));\n\t},\n\n\t_equals: function(item) {\n\t\treturn this._definition === item._definition;\n\t},\n\n\tcopyContent: function(source) {\n\t\tthis.setDefinition(source._definition);\n\t},\n\n\tgetDefinition: function() {\n\t\treturn this._definition;\n\t},\n\n\tsetDefinition: function(definition) {\n\t\tthis._definition = definition;\n\t\tthis._changed(9);\n\t},\n\n\tgetSymbol: '#getDefinition',\n\tsetSymbol: '#setDefinition',\n\n\tisEmpty: function() {\n\t\treturn this._definition._item.isEmpty();\n\t},\n\n\t_getBounds: function(matrix, options) {\n\t\tvar item = this._definition._item;\n\t\treturn item._getCachedBounds(item._matrix.prepended(matrix), options);\n\t},\n\n\t_hitTestSelf: function(point, options, viewMatrix) {\n\t\tvar opts = options.extend({ all: false });\n\t\tvar res = this._definition._item._hitTest(point, opts, viewMatrix);\n\t\tif (res)\n\t\t\tres.item = this;\n\t\treturn res;\n\t},\n\n\t_draw: function(ctx, param) {\n\t\tthis._definition._item.draw(ctx, param);\n\t}\n\n});\n\nvar SymbolDefinition = Base.extend({\n\t_class: 'SymbolDefinition',\n\n\tinitialize: function SymbolDefinition(item, dontCenter) {\n\t\tthis._id = UID.get();\n\t\tthis.project = paper.project;\n\t\tif (item)\n\t\t\tthis.setItem(item, dontCenter);\n\t},\n\n\t_serialize: function(options, dictionary) {\n\t\treturn dictionary.add(this, function() {\n\t\t\treturn Base.serialize([this._class, this._item],\n\t\t\t\t\toptions, false, dictionary);\n\t\t});\n\t},\n\n\t_changed: function(flags) {\n\t\tif (flags & 8)\n\t\t\tItem._clearBoundsCache(this);\n\t\tif (flags & 1)\n\t\t\tthis.project._changed(flags);\n\t},\n\n\tgetItem: function() {\n\t\treturn this._item;\n\t},\n\n\tsetItem: function(item, _dontCenter) {\n\t\tif (item._symbol)\n\t\t\titem = item.clone();\n\t\tif (this._item)\n\t\t\tthis._item._symbol = null;\n\t\tthis._item = item;\n\t\titem.remove();\n\t\titem.setSelected(false);\n\t\tif (!_dontCenter)\n\t\t\titem.setPosition(new Point());\n\t\titem._symbol = this;\n\t\tthis._changed(9);\n\t},\n\n\tgetDefinition: '#getItem',\n\tsetDefinition: '#setItem',\n\n\tplace: function(position) {\n\t\treturn new SymbolItem(this, position);\n\t},\n\n\tclone: function() {\n\t\treturn new SymbolDefinition(this._item.clone(false));\n\t},\n\n\tequals: function(symbol) {\n\t\treturn symbol === this\n\t\t\t\t|| symbol && this._item.equals(symbol._item)\n\t\t\t\t|| false;\n\t}\n});\n\nvar HitResult = Base.extend({\n\t_class: 'HitResult',\n\n\tinitialize: function HitResult(type, item, values) {\n\t\tthis.type = type;\n\t\tthis.item = item;\n\t\tif (values)\n\t\t\tthis.inject(values);\n\t},\n\n\tstatics: {\n\t\tgetOptions: function(args) {\n\t\t\tvar options = args && Base.read(args);\n\t\t\treturn new Base({\n\t\t\t\ttype: null,\n\t\t\t\ttolerance: paper.settings.hitTolerance,\n\t\t\t\tfill: !options,\n\t\t\t\tstroke: !options,\n\t\t\t\tsegments: !options,\n\t\t\t\thandles: false,\n\t\t\t\tends: false,\n\t\t\t\tposition: false,\n\t\t\t\tcenter: false,\n\t\t\t\tbounds: false,\n\t\t\t\tguides: false,\n\t\t\t\tselected: false\n\t\t\t}, options);\n\t\t}\n\t}\n});\n\nvar Segment = Base.extend({\n\t_class: 'Segment',\n\tbeans: true,\n\t_selection: 0,\n\n\tinitialize: function Segment(arg0, arg1, arg2, arg3, arg4, arg5) {\n\t\tvar count = arguments.length,\n\t\t\tpoint, handleIn, handleOut, selection;\n\t\tif (count > 0) {\n\t\t\tif (arg0 == null || typeof arg0 === 'object') {\n\t\t\t\tif (count === 1 && arg0 && 'point' in arg0) {\n\t\t\t\t\tpoint = arg0.point;\n\t\t\t\t\thandleIn = arg0.handleIn;\n\t\t\t\t\thandleOut = arg0.handleOut;\n\t\t\t\t\tselection = arg0.selection;\n\t\t\t\t} else {\n\t\t\t\t\tpoint = arg0;\n\t\t\t\t\thandleIn = arg1;\n\t\t\t\t\thandleOut = arg2;\n\t\t\t\t\tselection = arg3;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tpoint = [ arg0, arg1 ];\n\t\t\t\thandleIn = arg2 !== undefined ? [ arg2, arg3 ] : null;\n\t\t\t\thandleOut = arg4 !== undefined ? [ arg4, arg5 ] : null;\n\t\t\t}\n\t\t}\n\t\tnew SegmentPoint(point, this, '_point');\n\t\tnew SegmentPoint(handleIn, this, '_handleIn');\n\t\tnew SegmentPoint(handleOut, this, '_handleOut');\n\t\tif (selection)\n\t\t\tthis.setSelection(selection);\n\t},\n\n\t_serialize: function(options, dictionary) {\n\t\tvar point = this._point,\n\t\t\tselection = this._selection,\n\t\t\tobj = selection || this.hasHandles()\n\t\t\t\t\t? [point, this._handleIn, this._handleOut]\n\t\t\t\t\t: point;\n\t\tif (selection)\n\t\t\tobj.push(selection);\n\t\treturn Base.serialize(obj, options, true, dictionary);\n\t},\n\n\t_changed: function(point) {\n\t\tvar path = this._path;\n\t\tif (!path)\n\t\t\treturn;\n\t\tvar curves = path._curves,\n\t\t\tindex = this._index,\n\t\t\tcurve;\n\t\tif (curves) {\n\t\t\tif ((!point || point === this._point || point === this._handleIn)\n\t\t\t\t\t&& (curve = index > 0 ? curves[index - 1] : path._closed\n\t\t\t\t\t\t? curves[curves.length - 1] : null))\n\t\t\t\tcurve._changed();\n\t\t\tif ((!point || point === this._point || point === this._handleOut)\n\t\t\t\t\t&& (curve = curves[index]))\n\t\t\t\tcurve._changed();\n\t\t}\n\t\tpath._changed(41);\n\t},\n\n\tgetPoint: function() {\n\t\treturn this._point;\n\t},\n\n\tsetPoint: function() {\n\t\tthis._point.set(Point.read(arguments));\n\t},\n\n\tgetHandleIn: function() {\n\t\treturn this._handleIn;\n\t},\n\n\tsetHandleIn: function() {\n\t\tthis._handleIn.set(Point.read(arguments));\n\t},\n\n\tgetHandleOut: function() {\n\t\treturn this._handleOut;\n\t},\n\n\tsetHandleOut: function() {\n\t\tthis._handleOut.set(Point.read(arguments));\n\t},\n\n\thasHandles: function() {\n\t\treturn !this._handleIn.isZero() || !this._handleOut.isZero();\n\t},\n\n\tisSmooth: function() {\n\t\tvar handleIn = this._handleIn,\n\t\t\thandleOut = this._handleOut;\n\t\treturn !handleIn.isZero() && !handleOut.isZero()\n\t\t\t\t&& handleIn.isCollinear(handleOut);\n\t},\n\n\tclearHandles: function() {\n\t\tthis._handleIn._set(0, 0);\n\t\tthis._handleOut._set(0, 0);\n\t},\n\n\tgetSelection: function() {\n\t\treturn this._selection;\n\t},\n\n\tsetSelection: function(selection) {\n\t\tvar oldSelection = this._selection,\n\t\t\tpath = this._path;\n\t\tthis._selection = selection = selection || 0;\n\t\tif (path && selection !== oldSelection) {\n\t\t\tpath._updateSelection(this, oldSelection, selection);\n\t\t\tpath._changed(257);\n\t\t}\n\t},\n\n\t_changeSelection: function(flag, selected) {\n\t\tvar selection = this._selection;\n\t\tthis.setSelection(selected ? selection | flag : selection & ~flag);\n\t},\n\n\tisSelected: function() {\n\t\treturn !!(this._selection & 7);\n\t},\n\n\tsetSelected: function(selected) {\n\t\tthis._changeSelection(7, selected);\n\t},\n\n\tgetIndex: function() {\n\t\treturn this._index !== undefined ? this._index : null;\n\t},\n\n\tgetPath: function() {\n\t\treturn this._path || null;\n\t},\n\n\tgetCurve: function() {\n\t\tvar path = this._path,\n\t\t\tindex = this._index;\n\t\tif (path) {\n\t\t\tif (index > 0 && !path._closed\n\t\t\t\t\t&& index === path._segments.length - 1)\n\t\t\t\tindex--;\n\t\t\treturn path.getCurves()[index] || null;\n\t\t}\n\t\treturn null;\n\t},\n\n\tgetLocation: function() {\n\t\tvar curve = this.getCurve();\n\t\treturn curve\n\t\t\t\t? new CurveLocation(curve, this === curve._segment1 ? 0 : 1)\n\t\t\t\t: null;\n\t},\n\n\tgetNext: function() {\n\t\tvar segments = this._path && this._path._segments;\n\t\treturn segments && (segments[this._index + 1]\n\t\t\t\t|| this._path._closed && segments[0]) || null;\n\t},\n\n\tsmooth: function(options, _first, _last) {\n\t\tvar opts = options || {},\n\t\t\ttype = opts.type,\n\t\t\tfactor = opts.factor,\n\t\t\tprev = this.getPrevious(),\n\t\t\tnext = this.getNext(),\n\t\t\tp0 = (prev || this)._point,\n\t\t\tp1 = this._point,\n\t\t\tp2 = (next || this)._point,\n\t\t\td1 = p0.getDistance(p1),\n\t\t\td2 = p1.getDistance(p2);\n\t\tif (!type || type === 'catmull-rom') {\n\t\t\tvar a = factor === undefined ? 0.5 : factor,\n\t\t\t\td1_a = Math.pow(d1, a),\n\t\t\t\td1_2a = d1_a * d1_a,\n\t\t\t\td2_a = Math.pow(d2, a),\n\t\t\t\td2_2a = d2_a * d2_a;\n\t\t\tif (!_first && prev) {\n\t\t\t\tvar A = 2 * d2_2a + 3 * d2_a * d1_a + d1_2a,\n\t\t\t\t\tN = 3 * d2_a * (d2_a + d1_a);\n\t\t\t\tthis.setHandleIn(N !== 0\n\t\t\t\t\t? new Point(\n\t\t\t\t\t\t(d2_2a * p0._x + A * p1._x - d1_2a * p2._x) / N - p1._x,\n\t\t\t\t\t\t(d2_2a * p0._y + A * p1._y - d1_2a * p2._y) / N - p1._y)\n\t\t\t\t\t: new Point());\n\t\t\t}\n\t\t\tif (!_last && next) {\n\t\t\t\tvar A = 2 * d1_2a + 3 * d1_a * d2_a + d2_2a,\n\t\t\t\t\tN = 3 * d1_a * (d1_a + d2_a);\n\t\t\t\tthis.setHandleOut(N !== 0\n\t\t\t\t\t? new Point(\n\t\t\t\t\t\t(d1_2a * p2._x + A * p1._x - d2_2a * p0._x) / N - p1._x,\n\t\t\t\t\t\t(d1_2a * p2._y + A * p1._y - d2_2a * p0._y) / N - p1._y)\n\t\t\t\t\t: new Point());\n\t\t\t}\n\t\t} else if (type === 'geometric') {\n\t\t\tif (prev && next) {\n\t\t\t\tvar vector = p0.subtract(p2),\n\t\t\t\t\tt = factor === undefined ? 0.4 : factor,\n\t\t\t\t\tk = t * d1 / (d1 + d2);\n\t\t\t\tif (!_first)\n\t\t\t\t\tthis.setHandleIn(vector.multiply(k));\n\t\t\t\tif (!_last)\n\t\t\t\t\tthis.setHandleOut(vector.multiply(k - t));\n\t\t\t}\n\t\t} else {\n\t\t\tthrow new Error('Smoothing method \\'' + type + '\\' not supported.');\n\t\t}\n\t},\n\n\tgetPrevious: function() {\n\t\tvar segments = this._path && this._path._segments;\n\t\treturn segments && (segments[this._index - 1]\n\t\t\t\t|| this._path._closed && segments[segments.length - 1]) || null;\n\t},\n\n\tisFirst: function() {\n\t\treturn !this._index;\n\t},\n\n\tisLast: function() {\n\t\tvar path = this._path;\n\t\treturn path && this._index === path._segments.length - 1 || false;\n\t},\n\n\treverse: function() {\n\t\tvar handleIn = this._handleIn,\n\t\t\thandleOut = this._handleOut,\n\t\t\ttmp = handleIn.clone();\n\t\thandleIn.set(handleOut);\n\t\thandleOut.set(tmp);\n\t},\n\n\treversed: function() {\n\t\treturn new Segment(this._point, this._handleOut, this._handleIn);\n\t},\n\n\tremove: function() {\n\t\treturn this._path ? !!this._path.removeSegment(this._index) : false;\n\t},\n\n\tclone: function() {\n\t\treturn new Segment(this._point, this._handleIn, this._handleOut);\n\t},\n\n\tequals: function(segment) {\n\t\treturn segment === this || segment && this._class === segment._class\n\t\t\t\t&& this._point.equals(segment._point)\n\t\t\t\t&& this._handleIn.equals(segment._handleIn)\n\t\t\t\t&& this._handleOut.equals(segment._handleOut)\n\t\t\t\t|| false;\n\t},\n\n\ttoString: function() {\n\t\tvar parts = [ 'point: ' + this._point ];\n\t\tif (!this._handleIn.isZero())\n\t\t\tparts.push('handleIn: ' + this._handleIn);\n\t\tif (!this._handleOut.isZero())\n\t\t\tparts.push('handleOut: ' + this._handleOut);\n\t\treturn '{ ' + parts.join(', ') + ' }';\n\t},\n\n\ttransform: function(matrix) {\n\t\tthis._transformCoordinates(matrix, new Array(6), true);\n\t\tthis._changed();\n\t},\n\n\tinterpolate: function(from, to, factor) {\n\t\tvar u = 1 - factor,\n\t\t\tv = factor,\n\t\t\tpoint1 = from._point,\n\t\t\tpoint2 = to._point,\n\t\t\thandleIn1 = from._handleIn,\n\t\t\thandleIn2 = to._handleIn,\n\t\t\thandleOut2 = to._handleOut,\n\t\t\thandleOut1 = from._handleOut;\n\t\tthis._point._set(\n\t\t\t\tu * point1._x + v * point2._x,\n\t\t\t\tu * point1._y + v * point2._y, true);\n\t\tthis._handleIn._set(\n\t\t\t\tu * handleIn1._x + v * handleIn2._x,\n\t\t\t\tu * handleIn1._y + v * handleIn2._y, true);\n\t\tthis._handleOut._set(\n\t\t\t\tu * handleOut1._x + v * handleOut2._x,\n\t\t\t\tu * handleOut1._y + v * handleOut2._y, true);\n\t\tthis._changed();\n\t},\n\n\t_transformCoordinates: function(matrix, coords, change) {\n\t\tvar point = this._point,\n\t\t\thandleIn = !change || !this._handleIn.isZero()\n\t\t\t\t\t? this._handleIn : null,\n\t\t\thandleOut = !change || !this._handleOut.isZero()\n\t\t\t\t\t? this._handleOut : null,\n\t\t\tx = point._x,\n\t\t\ty = point._y,\n\t\t\ti = 2;\n\t\tcoords[0] = x;\n\t\tcoords[1] = y;\n\t\tif (handleIn) {\n\t\t\tcoords[i++] = handleIn._x + x;\n\t\t\tcoords[i++] = handleIn._y + y;\n\t\t}\n\t\tif (handleOut) {\n\t\t\tcoords[i++] = handleOut._x + x;\n\t\t\tcoords[i++] = handleOut._y + y;\n\t\t}\n\t\tif (matrix) {\n\t\t\tmatrix._transformCoordinates(coords, coords, i / 2);\n\t\t\tx = coords[0];\n\t\t\ty = coords[1];\n\t\t\tif (change) {\n\t\t\t\tpoint._x = x;\n\t\t\t\tpoint._y = y;\n\t\t\t\ti = 2;\n\t\t\t\tif (handleIn) {\n\t\t\t\t\thandleIn._x = coords[i++] - x;\n\t\t\t\t\thandleIn._y = coords[i++] - y;\n\t\t\t\t}\n\t\t\t\tif (handleOut) {\n\t\t\t\t\thandleOut._x = coords[i++] - x;\n\t\t\t\t\thandleOut._y = coords[i++] - y;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tif (!handleIn) {\n\t\t\t\t\tcoords[i++] = x;\n\t\t\t\t\tcoords[i++] = y;\n\t\t\t\t}\n\t\t\t\tif (!handleOut) {\n\t\t\t\t\tcoords[i++] = x;\n\t\t\t\t\tcoords[i++] = y;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn coords;\n\t}\n});\n\nvar SegmentPoint = Point.extend({\n\tinitialize: function SegmentPoint(point, owner, key) {\n\t\tvar x, y,\n\t\t\tselected;\n\t\tif (!point) {\n\t\t\tx = y = 0;\n\t\t} else if ((x = point[0]) !== undefined) {\n\t\t\ty = point[1];\n\t\t} else {\n\t\t\tvar pt = point;\n\t\t\tif ((x = pt.x) === undefined) {\n\t\t\t\tpt = Point.read(arguments);\n\t\t\t\tx = pt.x;\n\t\t\t}\n\t\t\ty = pt.y;\n\t\t\tselected = pt.selected;\n\t\t}\n\t\tthis._x = x;\n\t\tthis._y = y;\n\t\tthis._owner = owner;\n\t\towner[key] = this;\n\t\tif (selected)\n\t\t\tthis.setSelected(true);\n\t},\n\n\t_set: function(x, y) {\n\t\tthis._x = x;\n\t\tthis._y = y;\n\t\tthis._owner._changed(this);\n\t\treturn this;\n\t},\n\n\tgetX: function() {\n\t\treturn this._x;\n\t},\n\n\tsetX: function(x) {\n\t\tthis._x = x;\n\t\tthis._owner._changed(this);\n\t},\n\n\tgetY: function() {\n\t\treturn this._y;\n\t},\n\n\tsetY: function(y) {\n\t\tthis._y = y;\n\t\tthis._owner._changed(this);\n\t},\n\n\tisZero: function() {\n\t\tvar isZero = Numerical.isZero;\n\t\treturn isZero(this._x) && isZero(this._y);\n\t},\n\n\tisSelected: function() {\n\t\treturn !!(this._owner._selection & this._getSelection());\n\t},\n\n\tsetSelected: function(selected) {\n\t\tthis._owner._changeSelection(this._getSelection(), selected);\n\t},\n\n\t_getSelection: function() {\n\t\tvar owner = this._owner;\n\t\treturn this === owner._point ? 1\n\t\t\t: this === owner._handleIn ? 2\n\t\t\t: this === owner._handleOut ? 4\n\t\t\t: 0;\n\t}\n});\n\nvar Curve = Base.extend({\n\t_class: 'Curve',\n\tbeans: true,\n\n\tinitialize: function Curve(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7) {\n\t\tvar count = arguments.length,\n\t\t\tseg1, seg2,\n\t\t\tpoint1, point2,\n\t\t\thandle1, handle2;\n\t\tif (count === 3) {\n\t\t\tthis._path = arg0;\n\t\t\tseg1 = arg1;\n\t\t\tseg2 = arg2;\n\t\t} else if (!count) {\n\t\t\tseg1 = new Segment();\n\t\t\tseg2 = new Segment();\n\t\t} else if (count === 1) {\n\t\t\tif ('segment1' in arg0) {\n\t\t\t\tseg1 = new Segment(arg0.segment1);\n\t\t\t\tseg2 = new Segment(arg0.segment2);\n\t\t\t} else if ('point1' in arg0) {\n\t\t\t\tpoint1 = arg0.point1;\n\t\t\t\thandle1 = arg0.handle1;\n\t\t\t\thandle2 = arg0.handle2;\n\t\t\t\tpoint2 = arg0.point2;\n\t\t\t} else if (Array.isArray(arg0)) {\n\t\t\t\tpoint1 = [arg0[0], arg0[1]];\n\t\t\t\tpoint2 = [arg0[6], arg0[7]];\n\t\t\t\thandle1 = [arg0[2] - arg0[0], arg0[3] - arg0[1]];\n\t\t\t\thandle2 = [arg0[4] - arg0[6], arg0[5] - arg0[7]];\n\t\t\t}\n\t\t} else if (count === 2) {\n\t\t\tseg1 = new Segment(arg0);\n\t\t\tseg2 = new Segment(arg1);\n\t\t} else if (count === 4) {\n\t\t\tpoint1 = arg0;\n\t\t\thandle1 = arg1;\n\t\t\thandle2 = arg2;\n\t\t\tpoint2 = arg3;\n\t\t} else if (count === 8) {\n\t\t\tpoint1 = [arg0, arg1];\n\t\t\tpoint2 = [arg6, arg7];\n\t\t\thandle1 = [arg2 - arg0, arg3 - arg1];\n\t\t\thandle2 = [arg4 - arg6, arg5 - arg7];\n\t\t}\n\t\tthis._segment1 = seg1 || new Segment(point1, null, handle1);\n\t\tthis._segment2 = seg2 || new Segment(point2, handle2, null);\n\t},\n\n\t_serialize: function(options, dictionary) {\n\t\treturn Base.serialize(this.hasHandles()\n\t\t\t\t? [this.getPoint1(), this.getHandle1(), this.getHandle2(),\n\t\t\t\t\tthis.getPoint2()]\n\t\t\t\t: [this.getPoint1(), this.getPoint2()],\n\t\t\t\toptions, true, dictionary);\n\t},\n\n\t_changed: function() {\n\t\tthis._length = this._bounds = undefined;\n\t},\n\n\tclone: function() {\n\t\treturn new Curve(this._segment1, this._segment2);\n\t},\n\n\ttoString: function() {\n\t\tvar parts = [ 'point1: ' + this._segment1._point ];\n\t\tif (!this._segment1._handleOut.isZero())\n\t\t\tparts.push('handle1: ' + this._segment1._handleOut);\n\t\tif (!this._segment2._handleIn.isZero())\n\t\t\tparts.push('handle2: ' + this._segment2._handleIn);\n\t\tparts.push('point2: ' + this._segment2._point);\n\t\treturn '{ ' + parts.join(', ') + ' }';\n\t},\n\n\tclassify: function() {\n\t\treturn Curve.classify(this.getValues());\n\t},\n\n\tremove: function() {\n\t\tvar removed = false;\n\t\tif (this._path) {\n\t\t\tvar segment2 = this._segment2,\n\t\t\t\thandleOut = segment2._handleOut;\n\t\t\tremoved = segment2.remove();\n\t\t\tif (removed)\n\t\t\t\tthis._segment1._handleOut.set(handleOut);\n\t\t}\n\t\treturn removed;\n\t},\n\n\tgetPoint1: function() {\n\t\treturn this._segment1._point;\n\t},\n\n\tsetPoint1: function() {\n\t\tthis._segment1._point.set(Point.read(arguments));\n\t},\n\n\tgetPoint2: function() {\n\t\treturn this._segment2._point;\n\t},\n\n\tsetPoint2: function() {\n\t\tthis._segment2._point.set(Point.read(arguments));\n\t},\n\n\tgetHandle1: function() {\n\t\treturn this._segment1._handleOut;\n\t},\n\n\tsetHandle1: function() {\n\t\tthis._segment1._handleOut.set(Point.read(arguments));\n\t},\n\n\tgetHandle2: function() {\n\t\treturn this._segment2._handleIn;\n\t},\n\n\tsetHandle2: function() {\n\t\tthis._segment2._handleIn.set(Point.read(arguments));\n\t},\n\n\tgetSegment1: function() {\n\t\treturn this._segment1;\n\t},\n\n\tgetSegment2: function() {\n\t\treturn this._segment2;\n\t},\n\n\tgetPath: function() {\n\t\treturn this._path;\n\t},\n\n\tgetIndex: function() {\n\t\treturn this._segment1._index;\n\t},\n\n\tgetNext: function() {\n\t\tvar curves = this._path && this._path._curves;\n\t\treturn curves && (curves[this._segment1._index + 1]\n\t\t\t\t|| this._path._closed && curves[0]) || null;\n\t},\n\n\tgetPrevious: function() {\n\t\tvar curves = this._path && this._path._curves;\n\t\treturn curves && (curves[this._segment1._index - 1]\n\t\t\t\t|| this._path._closed && curves[curves.length - 1]) || null;\n\t},\n\n\tisFirst: function() {\n\t\treturn !this._segment1._index;\n\t},\n\n\tisLast: function() {\n\t\tvar path = this._path;\n\t\treturn path && this._segment1._index === path._curves.length - 1\n\t\t\t\t|| false;\n\t},\n\n\tisSelected: function() {\n\t\treturn this.getPoint1().isSelected()\n\t\t\t\t&& this.getHandle1().isSelected()\n\t\t\t\t&& this.getHandle2().isSelected()\n\t\t\t\t&& this.getPoint2().isSelected();\n\t},\n\n\tsetSelected: function(selected) {\n\t\tthis.getPoint1().setSelected(selected);\n\t\tthis.getHandle1().setSelected(selected);\n\t\tthis.getHandle2().setSelected(selected);\n\t\tthis.getPoint2().setSelected(selected);\n\t},\n\n\tgetValues: function(matrix) {\n\t\treturn Curve.getValues(this._segment1, this._segment2, matrix);\n\t},\n\n\tgetPoints: function() {\n\t\tvar coords = this.getValues(),\n\t\t\tpoints = [];\n\t\tfor (var i = 0; i < 8; i += 2)\n\t\t\tpoints.push(new Point(coords[i], coords[i + 1]));\n\t\treturn points;\n\t}\n}, {\n\tgetLength: function() {\n\t\tif (this._length == null)\n\t\t\tthis._length = Curve.getLength(this.getValues(), 0, 1);\n\t\treturn this._length;\n\t},\n\n\tgetArea: function() {\n\t\treturn Curve.getArea(this.getValues());\n\t},\n\n\tgetLine: function() {\n\t\treturn new Line(this._segment1._point, this._segment2._point);\n\t},\n\n\tgetPart: function(from, to) {\n\t\treturn new Curve(Curve.getPart(this.getValues(), from, to));\n\t},\n\n\tgetPartLength: function(from, to) {\n\t\treturn Curve.getLength(this.getValues(), from, to);\n\t},\n\n\tdivideAt: function(location) {\n\t\treturn this.divideAtTime(location && location.curve === this\n\t\t\t\t? location.time : this.getTimeAt(location));\n\t},\n\n\tdivideAtTime: function(time, _setHandles) {\n\t\tvar tMin = 1e-8,\n\t\t\ttMax = 1 - tMin,\n\t\t\tres = null;\n\t\tif (time >= tMin && time <= tMax) {\n\t\t\tvar parts = Curve.subdivide(this.getValues(), time),\n\t\t\t\tleft = parts[0],\n\t\t\t\tright = parts[1],\n\t\t\t\tsetHandles = _setHandles || this.hasHandles(),\n\t\t\t\tseg1 = this._segment1,\n\t\t\t\tseg2 = this._segment2,\n\t\t\t\tpath = this._path;\n\t\t\tif (setHandles) {\n\t\t\t\tseg1._handleOut._set(left[2] - left[0], left[3] - left[1]);\n\t\t\t\tseg2._handleIn._set(right[4] - right[6],right[5] - right[7]);\n\t\t\t}\n\t\t\tvar x = left[6], y = left[7],\n\t\t\t\tsegment = new Segment(new Point(x, y),\n\t\t\t\t\t\tsetHandles && new Point(left[4] - x, left[5] - y),\n\t\t\t\t\t\tsetHandles && new Point(right[2] - x, right[3] - y));\n\t\t\tif (path) {\n\t\t\t\tpath.insert(seg1._index + 1, segment);\n\t\t\t\tres = this.getNext();\n\t\t\t} else {\n\t\t\t\tthis._segment2 = segment;\n\t\t\t\tthis._changed();\n\t\t\t\tres = new Curve(segment, seg2);\n\t\t\t}\n\t\t}\n\t\treturn res;\n\t},\n\n\tsplitAt: function(location) {\n\t\tvar path = this._path;\n\t\treturn path ? path.splitAt(location) : null;\n\t},\n\n\tsplitAtTime: function(time) {\n\t\treturn this.splitAt(this.getLocationAtTime(time));\n\t},\n\n\tdivide: function(offset, isTime) {\n\t\treturn this.divideAtTime(offset === undefined ? 0.5 : isTime ? offset\n\t\t\t\t: this.getTimeAt(offset));\n\t},\n\n\tsplit: function(offset, isTime) {\n\t\treturn this.splitAtTime(offset === undefined ? 0.5 : isTime ? offset\n\t\t\t\t: this.getTimeAt(offset));\n\t},\n\n\treversed: function() {\n\t\treturn new Curve(this._segment2.reversed(), this._segment1.reversed());\n\t},\n\n\tclearHandles: function() {\n\t\tthis._segment1._handleOut._set(0, 0);\n\t\tthis._segment2._handleIn._set(0, 0);\n\t},\n\nstatics: {\n\tgetValues: function(segment1, segment2, matrix, straight) {\n\t\tvar p1 = segment1._point,\n\t\t\th1 = segment1._handleOut,\n\t\t\th2 = segment2._handleIn,\n\t\t\tp2 = segment2._point,\n\t\t\tx1 = p1.x, y1 = p1.y,\n\t\t\tx2 = p2.x, y2 = p2.y,\n\t\t\tvalues = straight\n\t\t\t\t? [ x1, y1, x1, y1, x2, y2, x2, y2 ]\n\t\t\t\t: [\n\t\t\t\t\tx1, y1,\n\t\t\t\t\tx1 + h1._x, y1 + h1._y,\n\t\t\t\t\tx2 + h2._x, y2 + h2._y,\n\t\t\t\t\tx2, y2\n\t\t\t\t];\n\t\tif (matrix)\n\t\t\tmatrix._transformCoordinates(values, values, 4);\n\t\treturn values;\n\t},\n\n\tsubdivide: function(v, t) {\n\t\tvar x0 = v[0], y0 = v[1],\n\t\t\tx1 = v[2], y1 = v[3],\n\t\t\tx2 = v[4], y2 = v[5],\n\t\t\tx3 = v[6], y3 = v[7];\n\t\tif (t === undefined)\n\t\t\tt = 0.5;\n\t\tvar u = 1 - t,\n\t\t\tx4 = u * x0 + t * x1, y4 = u * y0 + t * y1,\n\t\t\tx5 = u * x1 + t * x2, y5 = u * y1 + t * y2,\n\t\t\tx6 = u * x2 + t * x3, y6 = u * y2 + t * y3,\n\t\t\tx7 = u * x4 + t * x5, y7 = u * y4 + t * y5,\n\t\t\tx8 = u * x5 + t * x6, y8 = u * y5 + t * y6,\n\t\t\tx9 = u * x7 + t * x8, y9 = u * y7 + t * y8;\n\t\treturn [\n\t\t\t[x0, y0, x4, y4, x7, y7, x9, y9],\n\t\t\t[x9, y9, x8, y8, x6, y6, x3, y3]\n\t\t];\n\t},\n\n\tgetMonoCurves: function(v, dir) {\n\t\tvar curves = [],\n\t\t\tio = dir ? 0 : 1,\n\t\t\to0 = v[io + 0],\n\t\t\to1 = v[io + 2],\n\t\t\to2 = v[io + 4],\n\t\t\to3 = v[io + 6];\n\t\tif ((o0 >= o1) === (o1 >= o2) && (o1 >= o2) === (o2 >= o3)\n\t\t\t\t|| Curve.isStraight(v)) {\n\t\t\tcurves.push(v);\n\t\t} else {\n\t\t\tvar a = 3 * (o1 - o2) - o0 + o3,\n\t\t\t\tb = 2 * (o0 + o2) - 4 * o1,\n\t\t\t\tc = o1 - o0,\n\t\t\t\ttMin = 1e-8,\n\t\t\t\ttMax = 1 - tMin,\n\t\t\t\troots = [],\n\t\t\t\tn = Numerical.solveQuadratic(a, b, c, roots, tMin, tMax);\n\t\t\tif (!n) {\n\t\t\t\tcurves.push(v);\n\t\t\t} else {\n\t\t\t\troots.sort();\n\t\t\t\tvar t = roots[0],\n\t\t\t\t\tparts = Curve.subdivide(v, t);\n\t\t\t\tcurves.push(parts[0]);\n\t\t\t\tif (n > 1) {\n\t\t\t\t\tt = (roots[1] - t) / (1 - t);\n\t\t\t\t\tparts = Curve.subdivide(parts[1], t);\n\t\t\t\t\tcurves.push(parts[0]);\n\t\t\t\t}\n\t\t\t\tcurves.push(parts[1]);\n\t\t\t}\n\t\t}\n\t\treturn curves;\n\t},\n\n\tsolveCubic: function (v, coord, val, roots, min, max) {\n\t\tvar v0 = v[coord],\n\t\t\tv1 = v[coord + 2],\n\t\t\tv2 = v[coord + 4],\n\t\t\tv3 = v[coord + 6],\n\t\t\tres = 0;\n\t\tif ( !(v0 < val && v3 < val && v1 < val && v2 < val ||\n\t\t\t\tv0 > val && v3 > val && v1 > val && v2 > val)) {\n\t\t\tvar c = 3 * (v1 - v0),\n\t\t\t\tb = 3 * (v2 - v1) - c,\n\t\t\t\ta = v3 - v0 - c - b;\n\t\t\tres = Numerical.solveCubic(a, b, c, v0 - val, roots, min, max);\n\t\t}\n\t\treturn res;\n\t},\n\n\tgetTimeOf: function(v, point) {\n\t\tvar p0 = new Point(v[0], v[1]),\n\t\t\tp3 = new Point(v[6], v[7]),\n\t\t\tepsilon = 1e-12,\n\t\t\tgeomEpsilon = 1e-7,\n\t\t\tt = point.isClose(p0, epsilon) ? 0\n\t\t\t : point.isClose(p3, epsilon) ? 1\n\t\t\t : null;\n\t\tif (t === null) {\n\t\t\tvar coords = [point.x, point.y],\n\t\t\t\troots = [];\n\t\t\tfor (var c = 0; c < 2; c++) {\n\t\t\t\tvar count = Curve.solveCubic(v, c, coords[c], roots, 0, 1);\n\t\t\t\tfor (var i = 0; i < count; i++) {\n\t\t\t\t\tvar u = roots[i];\n\t\t\t\t\tif (point.isClose(Curve.getPoint(v, u), geomEpsilon))\n\t\t\t\t\t\treturn u;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn point.isClose(p0, geomEpsilon) ? 0\n\t\t\t : point.isClose(p3, geomEpsilon) ? 1\n\t\t\t : null;\n\t},\n\n\tgetNearestTime: function(v, point) {\n\t\tif (Curve.isStraight(v)) {\n\t\t\tvar x0 = v[0], y0 = v[1],\n\t\t\t\tx3 = v[6], y3 = v[7],\n\t\t\t\tvx = x3 - x0, vy = y3 - y0,\n\t\t\t\tdet = vx * vx + vy * vy;\n\t\t\tif (det === 0)\n\t\t\t\treturn 0;\n\t\t\tvar u = ((point.x - x0) * vx + (point.y - y0) * vy) / det;\n\t\t\treturn u < 1e-12 ? 0\n\t\t\t\t : u > 0.999999999999 ? 1\n\t\t\t\t : Curve.getTimeOf(v,\n\t\t\t\t\tnew Point(x0 + u * vx, y0 + u * vy));\n\t\t}\n\n\t\tvar count = 100,\n\t\t\tminDist = Infinity,\n\t\t\tminT = 0;\n\n\t\tfunction refine(t) {\n\t\t\tif (t >= 0 && t <= 1) {\n\t\t\t\tvar dist = point.getDistance(Curve.getPoint(v, t), true);\n\t\t\t\tif (dist < minDist) {\n\t\t\t\t\tminDist = dist;\n\t\t\t\t\tminT = t;\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tfor (var i = 0; i <= count; i++)\n\t\t\trefine(i / count);\n\n\t\tvar step = 1 / (count * 2);\n\t\twhile (step > 1e-8) {\n\t\t\tif (!refine(minT - step) && !refine(minT + step))\n\t\t\t\tstep /= 2;\n\t\t}\n\t\treturn minT;\n\t},\n\n\tgetPart: function(v, from, to) {\n\t\tvar flip = from > to;\n\t\tif (flip) {\n\t\t\tvar tmp = from;\n\t\t\tfrom = to;\n\t\t\tto = tmp;\n\t\t}\n\t\tif (from > 0)\n\t\t\tv = Curve.subdivide(v, from)[1];\n\t\tif (to < 1)\n\t\t\tv = Curve.subdivide(v, (to - from) / (1 - from))[0];\n\t\treturn flip\n\t\t\t\t? [v[6], v[7], v[4], v[5], v[2], v[3], v[0], v[1]]\n\t\t\t\t: v;\n\t},\n\n\tisFlatEnough: function(v, flatness) {\n\t\tvar x0 = v[0], y0 = v[1],\n\t\t\tx1 = v[2], y1 = v[3],\n\t\t\tx2 = v[4], y2 = v[5],\n\t\t\tx3 = v[6], y3 = v[7],\n\t\t\tux = 3 * x1 - 2 * x0 - x3,\n\t\t\tuy = 3 * y1 - 2 * y0 - y3,\n\t\t\tvx = 3 * x2 - 2 * x3 - x0,\n\t\t\tvy = 3 * y2 - 2 * y3 - y0;\n\t\treturn Math.max(ux * ux, vx * vx) + Math.max(uy * uy, vy * vy)\n\t\t\t\t<= 16 * flatness * flatness;\n\t},\n\n\tgetArea: function(v) {\n\t\tvar x0 = v[0], y0 = v[1],\n\t\t\tx1 = v[2], y1 = v[3],\n\t\t\tx2 = v[4], y2 = v[5],\n\t\t\tx3 = v[6], y3 = v[7];\n\t\treturn 3 * ((y3 - y0) * (x1 + x2) - (x3 - x0) * (y1 + y2)\n\t\t\t\t+ y1 * (x0 - x2) - x1 * (y0 - y2)\n\t\t\t\t+ y3 * (x2 + x0 / 3) - x3 * (y2 + y0 / 3)) / 20;\n\t},\n\n\tgetBounds: function(v) {\n\t\tvar min = v.slice(0, 2),\n\t\t\tmax = min.slice(),\n\t\t\troots = [0, 0];\n\t\tfor (var i = 0; i < 2; i++)\n\t\t\tCurve._addBounds(v[i], v[i + 2], v[i + 4], v[i + 6],\n\t\t\t\t\ti, 0, min, max, roots);\n\t\treturn new Rectangle(min[0], min[1], max[0] - min[0], max[1] - min[1]);\n\t},\n\n\t_addBounds: function(v0, v1, v2, v3, coord, padding, min, max, roots) {\n\t\tfunction add(value, padding) {\n\t\t\tvar left = value - padding,\n\t\t\t\tright = value + padding;\n\t\t\tif (left < min[coord])\n\t\t\t\tmin[coord] = left;\n\t\t\tif (right > max[coord])\n\t\t\t\tmax[coord] = right;\n\t\t}\n\n\t\tpadding /= 2;\n\t\tvar minPad = min[coord] + padding,\n\t\t\tmaxPad = max[coord] - padding;\n\t\tif ( v0 < minPad || v1 < minPad || v2 < minPad || v3 < minPad ||\n\t\t\t\tv0 > maxPad || v1 > maxPad || v2 > maxPad || v3 > maxPad) {\n\t\t\tif (v1 < v0 != v1 < v3 && v2 < v0 != v2 < v3) {\n\t\t\t\tadd(v0, 0);\n\t\t\t\tadd(v3, 0);\n\t\t\t} else {\n\t\t\t\tvar a = 3 * (v1 - v2) - v0 + v3,\n\t\t\t\t\tb = 2 * (v0 + v2) - 4 * v1,\n\t\t\t\t\tc = v1 - v0,\n\t\t\t\t\tcount = Numerical.solveQuadratic(a, b, c, roots),\n\t\t\t\t\ttMin = 1e-8,\n\t\t\t\t\ttMax = 1 - tMin;\n\t\t\t\tadd(v3, 0);\n\t\t\t\tfor (var i = 0; i < count; i++) {\n\t\t\t\t\tvar t = roots[i],\n\t\t\t\t\t\tu = 1 - t;\n\t\t\t\t\tif (tMin <= t && t <= tMax)\n\t\t\t\t\t\tadd(u * u * u * v0\n\t\t\t\t\t\t\t+ 3 * u * u * t * v1\n\t\t\t\t\t\t\t+ 3 * u * t * t * v2\n\t\t\t\t\t\t\t+ t * t * t * v3,\n\t\t\t\t\t\t\tpadding);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}}, Base.each(\n\t['getBounds', 'getStrokeBounds', 'getHandleBounds'],\n\tfunction(name) {\n\t\tthis[name] = function() {\n\t\t\tif (!this._bounds)\n\t\t\t\tthis._bounds = {};\n\t\t\tvar bounds = this._bounds[name];\n\t\t\tif (!bounds) {\n\t\t\t\tbounds = this._bounds[name] = Path[name](\n\t\t\t\t\t\t[this._segment1, this._segment2], false, this._path);\n\t\t\t}\n\t\t\treturn bounds.clone();\n\t\t};\n\t},\n{\n\n}), Base.each({\n\tisStraight: function(p1, h1, h2, p2) {\n\t\tif (h1.isZero() && h2.isZero()) {\n\t\t\treturn true;\n\t\t} else {\n\t\t\tvar v = p2.subtract(p1);\n\t\t\tif (v.isZero()) {\n\t\t\t\treturn false;\n\t\t\t} else if (v.isCollinear(h1) && v.isCollinear(h2)) {\n\t\t\t\tvar l = new Line(p1, p2),\n\t\t\t\t\tepsilon = 1e-7;\n\t\t\t\tif (l.getDistance(p1.add(h1)) < epsilon &&\n\t\t\t\t\tl.getDistance(p2.add(h2)) < epsilon) {\n\t\t\t\t\tvar div = v.dot(v),\n\t\t\t\t\t\ts1 = v.dot(h1) / div,\n\t\t\t\t\t\ts2 = v.dot(h2) / div;\n\t\t\t\t\treturn s1 >= 0 && s1 <= 1 && s2 <= 0 && s2 >= -1;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn false;\n\t},\n\n\tisLinear: function(p1, h1, h2, p2) {\n\t\tvar third = p2.subtract(p1).divide(3);\n\t\treturn h1.equals(third) && h2.negate().equals(third);\n\t}\n}, function(test, name) {\n\tthis[name] = function(epsilon) {\n\t\tvar seg1 = this._segment1,\n\t\t\tseg2 = this._segment2;\n\t\treturn test(seg1._point, seg1._handleOut, seg2._handleIn, seg2._point,\n\t\t\t\tepsilon);\n\t};\n\n\tthis.statics[name] = function(v, epsilon) {\n\t\tvar x0 = v[0], y0 = v[1],\n\t\t\tx3 = v[6], y3 = v[7];\n\t\treturn test(\n\t\t\t\tnew Point(x0, y0),\n\t\t\t\tnew Point(v[2] - x0, v[3] - y0),\n\t\t\t\tnew Point(v[4] - x3, v[5] - y3),\n\t\t\t\tnew Point(x3, y3), epsilon);\n\t};\n}, {\n\tstatics: {},\n\n\thasHandles: function() {\n\t\treturn !this._segment1._handleOut.isZero()\n\t\t\t\t|| !this._segment2._handleIn.isZero();\n\t},\n\n\thasLength: function(epsilon) {\n\t\treturn (!this.getPoint1().equals(this.getPoint2()) || this.hasHandles())\n\t\t\t\t&& this.getLength() > (epsilon || 0);\n\t},\n\n\tisCollinear: function(curve) {\n\t\treturn curve && this.isStraight() && curve.isStraight()\n\t\t\t\t&& this.getLine().isCollinear(curve.getLine());\n\t},\n\n\tisHorizontal: function() {\n\t\treturn this.isStraight() && Math.abs(this.getTangentAtTime(0.5).y)\n\t\t\t\t< 1e-8;\n\t},\n\n\tisVertical: function() {\n\t\treturn this.isStraight() && Math.abs(this.getTangentAtTime(0.5).x)\n\t\t\t\t< 1e-8;\n\t}\n}), {\n\tbeans: false,\n\n\tgetLocationAt: function(offset, _isTime) {\n\t\treturn this.getLocationAtTime(\n\t\t\t\t_isTime ? offset : this.getTimeAt(offset));\n\t},\n\n\tgetLocationAtTime: function(t) {\n\t\treturn t != null && t >= 0 && t <= 1\n\t\t\t\t? new CurveLocation(this, t)\n\t\t\t\t: null;\n\t},\n\n\tgetTimeAt: function(offset, start) {\n\t\treturn Curve.getTimeAt(this.getValues(), offset, start);\n\t},\n\n\tgetParameterAt: '#getTimeAt',\n\n\tgetTimesWithTangent: function () {\n\t\tvar tangent = Point.read(arguments);\n\t\treturn tangent.isZero()\n\t\t\t\t? []\n\t\t\t\t: Curve.getTimesWithTangent(this.getValues(), tangent);\n\t},\n\n\tgetOffsetAtTime: function(t) {\n\t\treturn this.getPartLength(0, t);\n\t},\n\n\tgetLocationOf: function() {\n\t\treturn this.getLocationAtTime(this.getTimeOf(Point.read(arguments)));\n\t},\n\n\tgetOffsetOf: function() {\n\t\tvar loc = this.getLocationOf.apply(this, arguments);\n\t\treturn loc ? loc.getOffset() : null;\n\t},\n\n\tgetTimeOf: function() {\n\t\treturn Curve.getTimeOf(this.getValues(), Point.read(arguments));\n\t},\n\n\tgetParameterOf: '#getTimeOf',\n\n\tgetNearestLocation: function() {\n\t\tvar point = Point.read(arguments),\n\t\t\tvalues = this.getValues(),\n\t\t\tt = Curve.getNearestTime(values, point),\n\t\t\tpt = Curve.getPoint(values, t);\n\t\treturn new CurveLocation(this, t, pt, null, point.getDistance(pt));\n\t},\n\n\tgetNearestPoint: function() {\n\t\tvar loc = this.getNearestLocation.apply(this, arguments);\n\t\treturn loc ? loc.getPoint() : loc;\n\t}\n\n},\nnew function() {\n\tvar methods = ['getPoint', 'getTangent', 'getNormal', 'getWeightedTangent',\n\t\t'getWeightedNormal', 'getCurvature'];\n\treturn Base.each(methods,\n\t\tfunction(name) {\n\t\t\tthis[name + 'At'] = function(location, _isTime) {\n\t\t\t\tvar values = this.getValues();\n\t\t\t\treturn Curve[name](values, _isTime ? location\n\t\t\t\t\t\t: Curve.getTimeAt(values, location));\n\t\t\t};\n\n\t\t\tthis[name + 'AtTime'] = function(time) {\n\t\t\t\treturn Curve[name](this.getValues(), time);\n\t\t\t};\n\t\t}, {\n\t\t\tstatics: {\n\t\t\t\t_evaluateMethods: methods\n\t\t\t}\n\t\t}\n\t);\n},\nnew function() {\n\n\tfunction getLengthIntegrand(v) {\n\t\tvar x0 = v[0], y0 = v[1],\n\t\t\tx1 = v[2], y1 = v[3],\n\t\t\tx2 = v[4], y2 = v[5],\n\t\t\tx3 = v[6], y3 = v[7],\n\n\t\t\tax = 9 * (x1 - x2) + 3 * (x3 - x0),\n\t\t\tbx = 6 * (x0 + x2) - 12 * x1,\n\t\t\tcx = 3 * (x1 - x0),\n\n\t\t\tay = 9 * (y1 - y2) + 3 * (y3 - y0),\n\t\t\tby = 6 * (y0 + y2) - 12 * y1,\n\t\t\tcy = 3 * (y1 - y0);\n\n\t\treturn function(t) {\n\t\t\tvar dx = (ax * t + bx) * t + cx,\n\t\t\t\tdy = (ay * t + by) * t + cy;\n\t\t\treturn Math.sqrt(dx * dx + dy * dy);\n\t\t};\n\t}\n\n\tfunction getIterations(a, b) {\n\t\treturn Math.max(2, Math.min(16, Math.ceil(Math.abs(b - a) * 32)));\n\t}\n\n\tfunction evaluate(v, t, type, normalized) {\n\t\tif (t == null || t < 0 || t > 1)\n\t\t\treturn null;\n\t\tvar x0 = v[0], y0 = v[1],\n\t\t\tx1 = v[2], y1 = v[3],\n\t\t\tx2 = v[4], y2 = v[5],\n\t\t\tx3 = v[6], y3 = v[7],\n\t\t\tisZero = Numerical.isZero;\n\t\tif (isZero(x1 - x0) && isZero(y1 - y0)) {\n\t\t\tx1 = x0;\n\t\t\ty1 = y0;\n\t\t}\n\t\tif (isZero(x2 - x3) && isZero(y2 - y3)) {\n\t\t\tx2 = x3;\n\t\t\ty2 = y3;\n\t\t}\n\t\tvar cx = 3 * (x1 - x0),\n\t\t\tbx = 3 * (x2 - x1) - cx,\n\t\t\tax = x3 - x0 - cx - bx,\n\t\t\tcy = 3 * (y1 - y0),\n\t\t\tby = 3 * (y2 - y1) - cy,\n\t\t\tay = y3 - y0 - cy - by,\n\t\t\tx, y;\n\t\tif (type === 0) {\n\t\t\tx = t === 0 ? x0 : t === 1 ? x3\n\t\t\t\t\t: ((ax * t + bx) * t + cx) * t + x0;\n\t\t\ty = t === 0 ? y0 : t === 1 ? y3\n\t\t\t\t\t: ((ay * t + by) * t + cy) * t + y0;\n\t\t} else {\n\t\t\tvar tMin = 1e-8,\n\t\t\t\ttMax = 1 - tMin;\n\t\t\tif (t < tMin) {\n\t\t\t\tx = cx;\n\t\t\t\ty = cy;\n\t\t\t} else if (t > tMax) {\n\t\t\t\tx = 3 * (x3 - x2);\n\t\t\t\ty = 3 * (y3 - y2);\n\t\t\t} else {\n\t\t\t\tx = (3 * ax * t + 2 * bx) * t + cx;\n\t\t\t\ty = (3 * ay * t + 2 * by) * t + cy;\n\t\t\t}\n\t\t\tif (normalized) {\n\t\t\t\tif (x === 0 && y === 0 && (t < tMin || t > tMax)) {\n\t\t\t\t\tx = x2 - x1;\n\t\t\t\t\ty = y2 - y1;\n\t\t\t\t}\n\t\t\t\tvar len = Math.sqrt(x * x + y * y);\n\t\t\t\tif (len) {\n\t\t\t\t\tx /= len;\n\t\t\t\t\ty /= len;\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (type === 3) {\n\t\t\t\tvar x2 = 6 * ax * t + 2 * bx,\n\t\t\t\t\ty2 = 6 * ay * t + 2 * by,\n\t\t\t\t\td = Math.pow(x * x + y * y, 3 / 2);\n\t\t\t\tx = d !== 0 ? (x * y2 - y * x2) / d : 0;\n\t\t\t\ty = 0;\n\t\t\t}\n\t\t}\n\t\treturn type === 2 ? new Point(y, -x) : new Point(x, y);\n\t}\n\n\treturn { statics: {\n\n\t\tclassify: function(v) {\n\n\t\t\tvar x0 = v[0], y0 = v[1],\n\t\t\t\tx1 = v[2], y1 = v[3],\n\t\t\t\tx2 = v[4], y2 = v[5],\n\t\t\t\tx3 = v[6], y3 = v[7],\n\t\t\t\ta1 = x0 * (y3 - y2) + y0 * (x2 - x3) + x3 * y2 - y3 * x2,\n\t\t\t\ta2 = x1 * (y0 - y3) + y1 * (x3 - x0) + x0 * y3 - y0 * x3,\n\t\t\t\ta3 = x2 * (y1 - y0) + y2 * (x0 - x1) + x1 * y0 - y1 * x0,\n\t\t\t\td3 = 3 * a3,\n\t\t\t\td2 = d3 - a2,\n\t\t\t\td1 = d2 - a2 + a1,\n\t\t\t\tl = Math.sqrt(d1 * d1 + d2 * d2 + d3 * d3),\n\t\t\t\ts = l !== 0 ? 1 / l : 0,\n\t\t\t\tisZero = Numerical.isZero,\n\t\t\t\tserpentine = 'serpentine';\n\t\t\td1 *= s;\n\t\t\td2 *= s;\n\t\t\td3 *= s;\n\n\t\t\tfunction type(type, t1, t2) {\n\t\t\t\tvar hasRoots = t1 !== undefined,\n\t\t\t\t\tt1Ok = hasRoots && t1 > 0 && t1 < 1,\n\t\t\t\t\tt2Ok = hasRoots && t2 > 0 && t2 < 1;\n\t\t\t\tif (hasRoots && (!(t1Ok || t2Ok)\n\t\t\t\t\t\t|| type === 'loop' && !(t1Ok && t2Ok))) {\n\t\t\t\t\ttype = 'arch';\n\t\t\t\t\tt1Ok = t2Ok = false;\n\t\t\t\t}\n\t\t\t\treturn {\n\t\t\t\t\ttype: type,\n\t\t\t\t\troots: t1Ok || t2Ok\n\t\t\t\t\t\t\t? t1Ok && t2Ok\n\t\t\t\t\t\t\t\t? t1 < t2 ? [t1, t2] : [t2, t1]\n\t\t\t\t\t\t\t\t: [t1Ok ? t1 : t2]\n\t\t\t\t\t\t\t: null\n\t\t\t\t};\n\t\t\t}\n\n\t\t\tif (isZero(d1)) {\n\t\t\t\treturn isZero(d2)\n\t\t\t\t\t\t? type(isZero(d3) ? 'line' : 'quadratic')\n\t\t\t\t\t\t: type(serpentine, d3 / (3 * d2));\n\t\t\t}\n\t\t\tvar d = 3 * d2 * d2 - 4 * d1 * d3;\n\t\t\tif (isZero(d)) {\n\t\t\t\treturn type('cusp', d2 / (2 * d1));\n\t\t\t}\n\t\t\tvar f1 = d > 0 ? Math.sqrt(d / 3) : Math.sqrt(-d),\n\t\t\t\tf2 = 2 * d1;\n\t\t\treturn type(d > 0 ? serpentine : 'loop',\n\t\t\t\t\t(d2 + f1) / f2,\n\t\t\t\t\t(d2 - f1) / f2);\n\t\t},\n\n\t\tgetLength: function(v, a, b, ds) {\n\t\t\tif (a === undefined)\n\t\t\t\ta = 0;\n\t\t\tif (b === undefined)\n\t\t\t\tb = 1;\n\t\t\tif (Curve.isStraight(v)) {\n\t\t\t\tvar c = v;\n\t\t\t\tif (b < 1) {\n\t\t\t\t\tc = Curve.subdivide(c, b)[0];\n\t\t\t\t\ta /= b;\n\t\t\t\t}\n\t\t\t\tif (a > 0) {\n\t\t\t\t\tc = Curve.subdivide(c, a)[1];\n\t\t\t\t}\n\t\t\t\tvar dx = c[6] - c[0],\n\t\t\t\t\tdy = c[7] - c[1];\n\t\t\t\treturn Math.sqrt(dx * dx + dy * dy);\n\t\t\t}\n\t\t\treturn Numerical.integrate(ds || getLengthIntegrand(v), a, b,\n\t\t\t\t\tgetIterations(a, b));\n\t\t},\n\n\t\tgetTimeAt: function(v, offset, start) {\n\t\t\tif (start === undefined)\n\t\t\t\tstart = offset < 0 ? 1 : 0;\n\t\t\tif (offset === 0)\n\t\t\t\treturn start;\n\t\t\tvar abs = Math.abs,\n\t\t\t\tepsilon = 1e-12,\n\t\t\t\tforward = offset > 0,\n\t\t\t\ta = forward ? start : 0,\n\t\t\t\tb = forward ? 1 : start,\n\t\t\t\tds = getLengthIntegrand(v),\n\t\t\t\trangeLength = Curve.getLength(v, a, b, ds),\n\t\t\t\tdiff = abs(offset) - rangeLength;\n\t\t\tif (abs(diff) < epsilon) {\n\t\t\t\treturn forward ? b : a;\n\t\t\t} else if (diff > epsilon) {\n\t\t\t\treturn null;\n\t\t\t}\n\t\t\tvar guess = offset / rangeLength,\n\t\t\t\tlength = 0;\n\t\t\tfunction f(t) {\n\t\t\t\tlength += Numerical.integrate(ds, start, t,\n\t\t\t\t\t\tgetIterations(start, t));\n\t\t\t\tstart = t;\n\t\t\t\treturn length - offset;\n\t\t\t}\n\t\t\treturn Numerical.findRoot(f, ds, start + guess, a, b, 32,\n\t\t\t\t\t1e-12);\n\t\t},\n\n\t\tgetPoint: function(v, t) {\n\t\t\treturn evaluate(v, t, 0, false);\n\t\t},\n\n\t\tgetTangent: function(v, t) {\n\t\t\treturn evaluate(v, t, 1, true);\n\t\t},\n\n\t\tgetWeightedTangent: function(v, t) {\n\t\t\treturn evaluate(v, t, 1, false);\n\t\t},\n\n\t\tgetNormal: function(v, t) {\n\t\t\treturn evaluate(v, t, 2, true);\n\t\t},\n\n\t\tgetWeightedNormal: function(v, t) {\n\t\t\treturn evaluate(v, t, 2, false);\n\t\t},\n\n\t\tgetCurvature: function(v, t) {\n\t\t\treturn evaluate(v, t, 3, false).x;\n\t\t},\n\n\t\tgetPeaks: function(v) {\n\t\t\tvar x0 = v[0], y0 = v[1],\n\t\t\t\tx1 = v[2], y1 = v[3],\n\t\t\t\tx2 = v[4], y2 = v[5],\n\t\t\t\tx3 = v[6], y3 = v[7],\n\t\t\t\tax = -x0 + 3 * x1 - 3 * x2 + x3,\n\t\t\t\tbx = 3 * x0 - 6 * x1 + 3 * x2,\n\t\t\t\tcx = -3 * x0 + 3 * x1,\n\t\t\t\tay = -y0 + 3 * y1 - 3 * y2 + y3,\n\t\t\t\tby = 3 * y0 - 6 * y1 + 3 * y2,\n\t\t\t\tcy = -3 * y0 + 3 * y1,\n\t\t\t\ttMin = 1e-8,\n\t\t\t\ttMax = 1 - tMin,\n\t\t\t\troots = [];\n\t\t\tNumerical.solveCubic(\n\t\t\t\t\t9 * (ax * ax + ay * ay),\n\t\t\t\t\t9 * (ax * bx + by * ay),\n\t\t\t\t\t2 * (bx * bx + by * by) + 3 * (cx * ax + cy * ay),\n\t\t\t\t\t(cx * bx + by * cy),\n\t\t\t\t\troots, tMin, tMax);\n\t\t\treturn roots.sort();\n\t\t}\n\t}};\n},\nnew function() {\n\n\tfunction addLocation(locations, include, c1, t1, c2, t2, overlap) {\n\t\tvar excludeStart = !overlap && c1.getPrevious() === c2,\n\t\t\texcludeEnd = !overlap && c1 !== c2 && c1.getNext() === c2,\n\t\t\ttMin = 1e-8,\n\t\t\ttMax = 1 - tMin;\n\t\tif (t1 !== null && t1 >= (excludeStart ? tMin : 0) &&\n\t\t\tt1 <= (excludeEnd ? tMax : 1)) {\n\t\t\tif (t2 !== null && t2 >= (excludeEnd ? tMin : 0) &&\n\t\t\t\tt2 <= (excludeStart ? tMax : 1)) {\n\t\t\t\tvar loc1 = new CurveLocation(c1, t1, null, overlap),\n\t\t\t\t\tloc2 = new CurveLocation(c2, t2, null, overlap);\n\t\t\t\tloc1._intersection = loc2;\n\t\t\t\tloc2._intersection = loc1;\n\t\t\t\tif (!include || include(loc1)) {\n\t\t\t\t\tCurveLocation.insert(locations, loc1, true);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\tfunction addCurveIntersections(v1, v2, c1, c2, locations, include, flip,\n\t\t\trecursion, calls, tMin, tMax, uMin, uMax) {\n\t\tif (++calls >= 4096 || ++recursion >= 40)\n\t\t\treturn calls;\n\t\tvar fatLineEpsilon = 1e-9,\n\t\t\tq0x = v2[0], q0y = v2[1], q3x = v2[6], q3y = v2[7],\n\t\t\tgetSignedDistance = Line.getSignedDistance,\n\t\t\td1 = getSignedDistance(q0x, q0y, q3x, q3y, v2[2], v2[3]),\n\t\t\td2 = getSignedDistance(q0x, q0y, q3x, q3y, v2[4], v2[5]),\n\t\t\tfactor = d1 * d2 > 0 ? 3 / 4 : 4 / 9,\n\t\t\tdMin = factor * Math.min(0, d1, d2),\n\t\t\tdMax = factor * Math.max(0, d1, d2),\n\t\t\tdp0 = getSignedDistance(q0x, q0y, q3x, q3y, v1[0], v1[1]),\n\t\t\tdp1 = getSignedDistance(q0x, q0y, q3x, q3y, v1[2], v1[3]),\n\t\t\tdp2 = getSignedDistance(q0x, q0y, q3x, q3y, v1[4], v1[5]),\n\t\t\tdp3 = getSignedDistance(q0x, q0y, q3x, q3y, v1[6], v1[7]),\n\t\t\thull = getConvexHull(dp0, dp1, dp2, dp3),\n\t\t\ttop = hull[0],\n\t\t\tbottom = hull[1],\n\t\t\ttMinClip,\n\t\t\ttMaxClip;\n\t\tif (d1 === 0 && d2 === 0\n\t\t\t\t&& dp0 === 0 && dp1 === 0 && dp2 === 0 && dp3 === 0\n\t\t\t|| (tMinClip = clipConvexHull(top, bottom, dMin, dMax)) == null\n\t\t\t|| (tMaxClip = clipConvexHull(top.reverse(), bottom.reverse(),\n\t\t\t\tdMin, dMax)) == null)\n\t\t\treturn calls;\n\t\tvar tMinNew = tMin + (tMax - tMin) * tMinClip,\n\t\t\ttMaxNew = tMin + (tMax - tMin) * tMaxClip;\n\t\tif (Math.max(uMax - uMin, tMaxNew - tMinNew) < fatLineEpsilon) {\n\t\t\tvar t = (tMinNew + tMaxNew) / 2,\n\t\t\t\tu = (uMin + uMax) / 2;\n\t\t\taddLocation(locations, include,\n\t\t\t\t\tflip ? c2 : c1, flip ? u : t,\n\t\t\t\t\tflip ? c1 : c2, flip ? t : u);\n\t\t} else {\n\t\t\tv1 = Curve.getPart(v1, tMinClip, tMaxClip);\n\t\t\tvar uDiff = uMax - uMin;\n\t\t\tif (tMaxClip - tMinClip > 0.8) {\n\t\t\t\tif (tMaxNew - tMinNew > uDiff) {\n\t\t\t\t\tvar parts = Curve.subdivide(v1, 0.5),\n\t\t\t\t\t\tt = (tMinNew + tMaxNew) / 2;\n\t\t\t\t\tcalls = addCurveIntersections(\n\t\t\t\t\t\t\tv2, parts[0], c2, c1, locations, include, !flip,\n\t\t\t\t\t\t\trecursion, calls, uMin, uMax, tMinNew, t);\n\t\t\t\t\tcalls = addCurveIntersections(\n\t\t\t\t\t\t\tv2, parts[1], c2, c1, locations, include, !flip,\n\t\t\t\t\t\t\trecursion, calls, uMin, uMax, t, tMaxNew);\n\t\t\t\t} else {\n\t\t\t\t\tvar parts = Curve.subdivide(v2, 0.5),\n\t\t\t\t\t\tu = (uMin + uMax) / 2;\n\t\t\t\t\tcalls = addCurveIntersections(\n\t\t\t\t\t\t\tparts[0], v1, c2, c1, locations, include, !flip,\n\t\t\t\t\t\t\trecursion, calls, uMin, u, tMinNew, tMaxNew);\n\t\t\t\t\tcalls = addCurveIntersections(\n\t\t\t\t\t\t\tparts[1], v1, c2, c1, locations, include, !flip,\n\t\t\t\t\t\t\trecursion, calls, u, uMax, tMinNew, tMaxNew);\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tif (uDiff === 0 || uDiff >= fatLineEpsilon) {\n\t\t\t\t\tcalls = addCurveIntersections(\n\t\t\t\t\t\t\tv2, v1, c2, c1, locations, include, !flip,\n\t\t\t\t\t\t\trecursion, calls, uMin, uMax, tMinNew, tMaxNew);\n\t\t\t\t} else {\n\t\t\t\t\tcalls = addCurveIntersections(\n\t\t\t\t\t\t\tv1, v2, c1, c2, locations, include, flip,\n\t\t\t\t\t\t\trecursion, calls, tMinNew, tMaxNew, uMin, uMax);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn calls;\n\t}\n\n\tfunction getConvexHull(dq0, dq1, dq2, dq3) {\n\t\tvar p0 = [ 0, dq0 ],\n\t\t\tp1 = [ 1 / 3, dq1 ],\n\t\t\tp2 = [ 2 / 3, dq2 ],\n\t\t\tp3 = [ 1, dq3 ],\n\t\t\tdist1 = dq1 - (2 * dq0 + dq3) / 3,\n\t\t\tdist2 = dq2 - (dq0 + 2 * dq3) / 3,\n\t\t\thull;\n\t\tif (dist1 * dist2 < 0) {\n\t\t\thull = [[p0, p1, p3], [p0, p2, p3]];\n\t\t} else {\n\t\t\tvar distRatio = dist1 / dist2;\n\t\t\thull = [\n\t\t\t\tdistRatio >= 2 ? [p0, p1, p3]\n\t\t\t\t: distRatio <= 0.5 ? [p0, p2, p3]\n\t\t\t\t: [p0, p1, p2, p3],\n\t\t\t\t[p0, p3]\n\t\t\t];\n\t\t}\n\t\treturn (dist1 || dist2) < 0 ? hull.reverse() : hull;\n\t}\n\n\tfunction clipConvexHull(hullTop, hullBottom, dMin, dMax) {\n\t\tif (hullTop[0][1] < dMin) {\n\t\t\treturn clipConvexHullPart(hullTop, true, dMin);\n\t\t} else if (hullBottom[0][1] > dMax) {\n\t\t\treturn clipConvexHullPart(hullBottom, false, dMax);\n\t\t} else {\n\t\t\treturn hullTop[0][0];\n\t\t}\n\t}\n\n\tfunction clipConvexHullPart(part, top, threshold) {\n\t\tvar px = part[0][0],\n\t\t\tpy = part[0][1];\n\t\tfor (var i = 1, l = part.length; i < l; i++) {\n\t\t\tvar qx = part[i][0],\n\t\t\t\tqy = part[i][1];\n\t\t\tif (top ? qy >= threshold : qy <= threshold) {\n\t\t\t\treturn qy === threshold ? qx\n\t\t\t\t\t\t: px + (threshold - py) * (qx - px) / (qy - py);\n\t\t\t}\n\t\t\tpx = qx;\n\t\t\tpy = qy;\n\t\t}\n\t\treturn null;\n\t}\n\n\tfunction getCurveLineIntersections(v, px, py, vx, vy) {\n\t\tvar isZero = Numerical.isZero;\n\t\tif (isZero(vx) && isZero(vy)) {\n\t\t\tvar t = Curve.getTimeOf(v, new Point(px, py));\n\t\t\treturn t === null ? [] : [t];\n\t\t}\n\t\tvar angle = Math.atan2(-vy, vx),\n\t\t\tsin = Math.sin(angle),\n\t\t\tcos = Math.cos(angle),\n\t\t\trv = [],\n\t\t\troots = [];\n\t\tfor (var i = 0; i < 8; i += 2) {\n\t\t\tvar x = v[i] - px,\n\t\t\t\ty = v[i + 1] - py;\n\t\t\trv.push(\n\t\t\t\tx * cos - y * sin,\n\t\t\t\tx * sin + y * cos);\n\t\t}\n\t\tCurve.solveCubic(rv, 1, 0, roots, 0, 1);\n\t\treturn roots;\n\t}\n\n\tfunction addCurveLineIntersections(v1, v2, c1, c2, locations, include,\n\t\t\tflip) {\n\t\tvar x1 = v2[0], y1 = v2[1],\n\t\t\tx2 = v2[6], y2 = v2[7],\n\t\t\troots = getCurveLineIntersections(v1, x1, y1, x2 - x1, y2 - y1);\n\t\tfor (var i = 0, l = roots.length; i < l; i++) {\n\t\t\tvar t1 = roots[i],\n\t\t\t\tp1 = Curve.getPoint(v1, t1),\n\t\t\t\tt2 = Curve.getTimeOf(v2, p1);\n\t\t\tif (t2 !== null) {\n\t\t\t\taddLocation(locations, include,\n\t\t\t\t\t\tflip ? c2 : c1, flip ? t2 : t1,\n\t\t\t\t\t\tflip ? c1 : c2, flip ? t1 : t2);\n\t\t\t}\n\t\t}\n\t}\n\n\tfunction addLineIntersection(v1, v2, c1, c2, locations, include) {\n\t\tvar pt = Line.intersect(\n\t\t\t\tv1[0], v1[1], v1[6], v1[7],\n\t\t\t\tv2[0], v2[1], v2[6], v2[7]);\n\t\tif (pt) {\n\t\t\taddLocation(locations, include,\n\t\t\t\t\tc1, Curve.getTimeOf(v1, pt),\n\t\t\t\t\tc2, Curve.getTimeOf(v2, pt));\n\t\t}\n\t}\n\n\tfunction getCurveIntersections(v1, v2, c1, c2, locations, include) {\n\t\tvar epsilon = 1e-12,\n\t\t\tmin = Math.min,\n\t\t\tmax = Math.max;\n\n\t\tif (max(v1[0], v1[2], v1[4], v1[6]) + epsilon >\n\t\t\tmin(v2[0], v2[2], v2[4], v2[6]) &&\n\t\t\tmin(v1[0], v1[2], v1[4], v1[6]) - epsilon <\n\t\t\tmax(v2[0], v2[2], v2[4], v2[6]) &&\n\t\t\tmax(v1[1], v1[3], v1[5], v1[7]) + epsilon >\n\t\t\tmin(v2[1], v2[3], v2[5], v2[7]) &&\n\t\t\tmin(v1[1], v1[3], v1[5], v1[7]) - epsilon <\n\t\t\tmax(v2[1], v2[3], v2[5], v2[7])) {\n\t\t\tvar overlaps = getOverlaps(v1, v2);\n\t\t\tif (overlaps) {\n\t\t\t\tfor (var i = 0; i < 2; i++) {\n\t\t\t\t\tvar overlap = overlaps[i];\n\t\t\t\t\taddLocation(locations, include,\n\t\t\t\t\t\t\tc1, overlap[0],\n\t\t\t\t\t\t\tc2, overlap[1], true);\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tvar straight1 = Curve.isStraight(v1),\n\t\t\t\t\tstraight2 = Curve.isStraight(v2),\n\t\t\t\t\tstraight = straight1 && straight2,\n\t\t\t\t\tflip = straight1 && !straight2,\n\t\t\t\t\tbefore = locations.length;\n\t\t\t\t(straight\n\t\t\t\t\t? addLineIntersection\n\t\t\t\t\t: straight1 || straight2\n\t\t\t\t\t\t? addCurveLineIntersections\n\t\t\t\t\t\t: addCurveIntersections)(\n\t\t\t\t\t\t\tflip ? v2 : v1, flip ? v1 : v2,\n\t\t\t\t\t\t\tflip ? c2 : c1, flip ? c1 : c2,\n\t\t\t\t\t\t\tlocations, include, flip,\n\t\t\t\t\t\t\t0, 0, 0, 1, 0, 1);\n\t\t\t\tif (!straight || locations.length === before) {\n\t\t\t\t\tfor (var i = 0; i < 4; i++) {\n\t\t\t\t\t\tvar t1 = i >> 1,\n\t\t\t\t\t\t\tt2 = i & 1,\n\t\t\t\t\t\t\ti1 = t1 * 6,\n\t\t\t\t\t\t\ti2 = t2 * 6,\n\t\t\t\t\t\t\tp1 = new Point(v1[i1], v1[i1 + 1]),\n\t\t\t\t\t\t\tp2 = new Point(v2[i2], v2[i2 + 1]);\n\t\t\t\t\t\tif (p1.isClose(p2, epsilon)) {\n\t\t\t\t\t\t\taddLocation(locations, include,\n\t\t\t\t\t\t\t\t\tc1, t1,\n\t\t\t\t\t\t\t\t\tc2, t2);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn locations;\n\t}\n\n\tfunction getSelfIntersection(v1, c1, locations, include) {\n\t\tvar info = Curve.classify(v1);\n\t\tif (info.type === 'loop') {\n\t\t\tvar roots = info.roots;\n\t\t\taddLocation(locations, include,\n\t\t\t\t\tc1, roots[0],\n\t\t\t\t\tc1, roots[1]);\n\t\t}\n\t return locations;\n\t}\n\n\tfunction getIntersections(curves1, curves2, include, matrix1, matrix2,\n\t\t\t_returnFirst) {\n\t\tvar epsilon = 1e-7,\n\t\t\tself = !curves2;\n\t\tif (self)\n\t\t\tcurves2 = curves1;\n\t\tvar length1 = curves1.length,\n\t\t\tlength2 = curves2.length,\n\t\t\tvalues1 = new Array(length1),\n\t\t\tvalues2 = self ? values1 : new Array(length2),\n\t\t\tlocations = [];\n\n\t\tfor (var i = 0; i < length1; i++) {\n\t\t\tvalues1[i] = curves1[i].getValues(matrix1);\n\t\t}\n\t\tif (!self) {\n\t\t\tfor (var i = 0; i < length2; i++) {\n\t\t\t\tvalues2[i] = curves2[i].getValues(matrix2);\n\t\t\t}\n\t\t}\n\t\tvar boundsCollisions = CollisionDetection.findCurveBoundsCollisions(\n\t\t\t\tvalues1, values2, epsilon);\n\t\tfor (var index1 = 0; index1 < length1; index1++) {\n\t\t\tvar curve1 = curves1[index1],\n\t\t\t\tv1 = values1[index1];\n\t\t\tif (self) {\n\t\t\t\tgetSelfIntersection(v1, curve1, locations, include);\n\t\t\t}\n\t\t\tvar collisions1 = boundsCollisions[index1];\n\t\t\tif (collisions1) {\n\t\t\t\tfor (var j = 0; j < collisions1.length; j++) {\n\t\t\t\t\tif (_returnFirst && locations.length)\n\t\t\t\t\t\treturn locations;\n\t\t\t\t\tvar index2 = collisions1[j];\n\t\t\t\t\tif (!self || index2 > index1) {\n\t\t\t\t\t\tvar curve2 = curves2[index2],\n\t\t\t\t\t\t\tv2 = values2[index2];\n\t\t\t\t\t\tgetCurveIntersections(\n\t\t\t\t\t\t\t\tv1, v2, curve1, curve2, locations, include);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn locations;\n\t}\n\n\tfunction getOverlaps(v1, v2) {\n\n\t\tfunction getSquaredLineLength(v) {\n\t\t\tvar x = v[6] - v[0],\n\t\t\t\ty = v[7] - v[1];\n\t\t\treturn x * x + y * y;\n\t\t}\n\n\t\tvar abs = Math.abs,\n\t\t\tgetDistance = Line.getDistance,\n\t\t\ttimeEpsilon = 1e-8,\n\t\t\tgeomEpsilon = 1e-7,\n\t\t\tstraight1 = Curve.isStraight(v1),\n\t\t\tstraight2 = Curve.isStraight(v2),\n\t\t\tstraightBoth = straight1 && straight2,\n\t\t\tflip = getSquaredLineLength(v1) < getSquaredLineLength(v2),\n\t\t\tl1 = flip ? v2 : v1,\n\t\t\tl2 = flip ? v1 : v2,\n\t\t\tpx = l1[0], py = l1[1],\n\t\t\tvx = l1[6] - px, vy = l1[7] - py;\n\t\tif (getDistance(px, py, vx, vy, l2[0], l2[1], true) < geomEpsilon &&\n\t\t\tgetDistance(px, py, vx, vy, l2[6], l2[7], true) < geomEpsilon) {\n\t\t\tif (!straightBoth &&\n\t\t\t\tgetDistance(px, py, vx, vy, l1[2], l1[3], true) < geomEpsilon &&\n\t\t\t\tgetDistance(px, py, vx, vy, l1[4], l1[5], true) < geomEpsilon &&\n\t\t\t\tgetDistance(px, py, vx, vy, l2[2], l2[3], true) < geomEpsilon &&\n\t\t\t\tgetDistance(px, py, vx, vy, l2[4], l2[5], true) < geomEpsilon) {\n\t\t\t\tstraight1 = straight2 = straightBoth = true;\n\t\t\t}\n\t\t} else if (straightBoth) {\n\t\t\treturn null;\n\t\t}\n\t\tif (straight1 ^ straight2) {\n\t\t\treturn null;\n\t\t}\n\n\t\tvar v = [v1, v2],\n\t\t\tpairs = [];\n\t\tfor (var i = 0; i < 4 && pairs.length < 2; i++) {\n\t\t\tvar i1 = i & 1,\n\t\t\t\ti2 = i1 ^ 1,\n\t\t\t\tt1 = i >> 1,\n\t\t\t\tt2 = Curve.getTimeOf(v[i1], new Point(\n\t\t\t\t\tv[i2][t1 ? 6 : 0],\n\t\t\t\t\tv[i2][t1 ? 7 : 1]));\n\t\t\tif (t2 != null) {\n\t\t\t\tvar pair = i1 ? [t1, t2] : [t2, t1];\n\t\t\t\tif (!pairs.length ||\n\t\t\t\t\tabs(pair[0] - pairs[0][0]) > timeEpsilon &&\n\t\t\t\t\tabs(pair[1] - pairs[0][1]) > timeEpsilon) {\n\t\t\t\t\tpairs.push(pair);\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (i > 2 && !pairs.length)\n\t\t\t\tbreak;\n\t\t}\n\t\tif (pairs.length !== 2) {\n\t\t\tpairs = null;\n\t\t} else if (!straightBoth) {\n\t\t\tvar o1 = Curve.getPart(v1, pairs[0][0], pairs[1][0]),\n\t\t\t\to2 = Curve.getPart(v2, pairs[0][1], pairs[1][1]);\n\t\t\tif (abs(o2[2] - o1[2]) > geomEpsilon ||\n\t\t\t\tabs(o2[3] - o1[3]) > geomEpsilon ||\n\t\t\t\tabs(o2[4] - o1[4]) > geomEpsilon ||\n\t\t\t\tabs(o2[5] - o1[5]) > geomEpsilon)\n\t\t\t\tpairs = null;\n\t\t}\n\t\treturn pairs;\n\t}\n\n\tfunction getTimesWithTangent(v, tangent) {\n\t\tvar x0 = v[0], y0 = v[1],\n\t\t\tx1 = v[2], y1 = v[3],\n\t\t\tx2 = v[4], y2 = v[5],\n\t\t\tx3 = v[6], y3 = v[7],\n\t\t\tnormalized = tangent.normalize(),\n\t\t\ttx = normalized.x,\n\t\t\tty = normalized.y,\n\t\t\tax = 3 * x3 - 9 * x2 + 9 * x1 - 3 * x0,\n\t\t\tay = 3 * y3 - 9 * y2 + 9 * y1 - 3 * y0,\n\t\t\tbx = 6 * x2 - 12 * x1 + 6 * x0,\n\t\t\tby = 6 * y2 - 12 * y1 + 6 * y0,\n\t\t\tcx = 3 * x1 - 3 * x0,\n\t\t\tcy = 3 * y1 - 3 * y0,\n\t\t\tden = 2 * ax * ty - 2 * ay * tx,\n\t\t\ttimes = [];\n\t\tif (Math.abs(den) < Numerical.CURVETIME_EPSILON) {\n\t\t\tvar num = ax * cy - ay * cx,\n\t\t\t\tden = ax * by - ay * bx;\n\t\t\tif (den != 0) {\n\t\t\t\tvar t = -num / den;\n\t\t\t\tif (t >= 0 && t <= 1) times.push(t);\n\t\t\t}\n\t\t} else {\n\t\t\tvar delta = (bx * bx - 4 * ax * cx) * ty * ty +\n\t\t\t\t(-2 * bx * by + 4 * ay * cx + 4 * ax * cy) * tx * ty +\n\t\t\t\t(by * by - 4 * ay * cy) * tx * tx,\n\t\t\t\tk = bx * ty - by * tx;\n\t\t\tif (delta >= 0 && den != 0) {\n\t\t\t\tvar d = Math.sqrt(delta),\n\t\t\t\t\tt0 = -(k + d) / den,\n\t\t\t\t\tt1 = (-k + d) / den;\n\t\t\t\tif (t0 >= 0 && t0 <= 1) times.push(t0);\n\t\t\t\tif (t1 >= 0 && t1 <= 1) times.push(t1);\n\t\t\t}\n\t\t}\n\t\treturn times;\n\t}\n\n\treturn {\n\t\tgetIntersections: function(curve) {\n\t\t\tvar v1 = this.getValues(),\n\t\t\t\tv2 = curve && curve !== this && curve.getValues();\n\t\t\treturn v2 ? getCurveIntersections(v1, v2, this, curve, [])\n\t\t\t\t\t : getSelfIntersection(v1, this, []);\n\t\t},\n\n\t\tstatics: {\n\t\t\tgetOverlaps: getOverlaps,\n\t\t\tgetIntersections: getIntersections,\n\t\t\tgetCurveLineIntersections: getCurveLineIntersections,\n\t\t\tgetTimesWithTangent: getTimesWithTangent\n\t\t}\n\t};\n});\n\nvar CurveLocation = Base.extend({\n\t_class: 'CurveLocation',\n\n\tinitialize: function CurveLocation(curve, time, point, _overlap, _distance) {\n\t\tif (time >= 0.99999999) {\n\t\t\tvar next = curve.getNext();\n\t\t\tif (next) {\n\t\t\t\ttime = 0;\n\t\t\t\tcurve = next;\n\t\t\t}\n\t\t}\n\t\tthis._setCurve(curve);\n\t\tthis._time = time;\n\t\tthis._point = point || curve.getPointAtTime(time);\n\t\tthis._overlap = _overlap;\n\t\tthis._distance = _distance;\n\t\tthis._intersection = this._next = this._previous = null;\n\t},\n\n\t_setPath: function(path) {\n\t\tthis._path = path;\n\t\tthis._version = path ? path._version : 0;\n\t},\n\n\t_setCurve: function(curve) {\n\t\tthis._setPath(curve._path);\n\t\tthis._curve = curve;\n\t\tthis._segment = null;\n\t\tthis._segment1 = curve._segment1;\n\t\tthis._segment2 = curve._segment2;\n\t},\n\n\t_setSegment: function(segment) {\n\t\tvar curve = segment.getCurve();\n\t\tif (curve) {\n\t\t\tthis._setCurve(curve);\n\t\t} else {\n\t\t\tthis._setPath(segment._path);\n\t\t\tthis._segment1 = segment;\n\t\t\tthis._segment2 = null;\n\t\t}\n\t\tthis._segment = segment;\n\t\tthis._time = segment === this._segment1 ? 0 : 1;\n\t\tthis._point = segment._point.clone();\n\t},\n\n\tgetSegment: function() {\n\t\tvar segment = this._segment;\n\t\tif (!segment) {\n\t\t\tvar curve = this.getCurve(),\n\t\t\t\ttime = this.getTime();\n\t\t\tif (time === 0) {\n\t\t\t\tsegment = curve._segment1;\n\t\t\t} else if (time === 1) {\n\t\t\t\tsegment = curve._segment2;\n\t\t\t} else if (time != null) {\n\t\t\t\tsegment = curve.getPartLength(0, time)\n\t\t\t\t\t< curve.getPartLength(time, 1)\n\t\t\t\t\t\t? curve._segment1\n\t\t\t\t\t\t: curve._segment2;\n\t\t\t}\n\t\t\tthis._segment = segment;\n\t\t}\n\t\treturn segment;\n\t},\n\n\tgetCurve: function() {\n\t\tvar path = this._path,\n\t\t\tthat = this;\n\t\tif (path && path._version !== this._version) {\n\t\t\tthis._time = this._offset = this._curveOffset = this._curve = null;\n\t\t}\n\n\t\tfunction trySegment(segment) {\n\t\t\tvar curve = segment && segment.getCurve();\n\t\t\tif (curve && (that._time = curve.getTimeOf(that._point)) != null) {\n\t\t\t\tthat._setCurve(curve);\n\t\t\t\treturn curve;\n\t\t\t}\n\t\t}\n\n\t\treturn this._curve\n\t\t\t|| trySegment(this._segment)\n\t\t\t|| trySegment(this._segment1)\n\t\t\t|| trySegment(this._segment2.getPrevious());\n\t},\n\n\tgetPath: function() {\n\t\tvar curve = this.getCurve();\n\t\treturn curve && curve._path;\n\t},\n\n\tgetIndex: function() {\n\t\tvar curve = this.getCurve();\n\t\treturn curve && curve.getIndex();\n\t},\n\n\tgetTime: function() {\n\t\tvar curve = this.getCurve(),\n\t\t\ttime = this._time;\n\t\treturn curve && time == null\n\t\t\t? this._time = curve.getTimeOf(this._point)\n\t\t\t: time;\n\t},\n\n\tgetParameter: '#getTime',\n\n\tgetPoint: function() {\n\t\treturn this._point;\n\t},\n\n\tgetOffset: function() {\n\t\tvar offset = this._offset;\n\t\tif (offset == null) {\n\t\t\toffset = 0;\n\t\t\tvar path = this.getPath(),\n\t\t\t\tindex = this.getIndex();\n\t\t\tif (path && index != null) {\n\t\t\t\tvar curves = path.getCurves();\n\t\t\t\tfor (var i = 0; i < index; i++)\n\t\t\t\t\toffset += curves[i].getLength();\n\t\t\t}\n\t\t\tthis._offset = offset += this.getCurveOffset();\n\t\t}\n\t\treturn offset;\n\t},\n\n\tgetCurveOffset: function() {\n\t\tvar offset = this._curveOffset;\n\t\tif (offset == null) {\n\t\t\tvar curve = this.getCurve(),\n\t\t\t\ttime = this.getTime();\n\t\t\tthis._curveOffset = offset = time != null && curve\n\t\t\t\t\t&& curve.getPartLength(0, time);\n\t\t}\n\t\treturn offset;\n\t},\n\n\tgetIntersection: function() {\n\t\treturn this._intersection;\n\t},\n\n\tgetDistance: function() {\n\t\treturn this._distance;\n\t},\n\n\tdivide: function() {\n\t\tvar curve = this.getCurve(),\n\t\t\tres = curve && curve.divideAtTime(this.getTime());\n\t\tif (res) {\n\t\t\tthis._setSegment(res._segment1);\n\t\t}\n\t\treturn res;\n\t},\n\n\tsplit: function() {\n\t\tvar curve = this.getCurve(),\n\t\t\tpath = curve._path,\n\t\t\tres = curve && curve.splitAtTime(this.getTime());\n\t\tif (res) {\n\t\t\tthis._setSegment(path.getLastSegment());\n\t\t}\n\t\treturn res;\n\t},\n\n\tequals: function(loc, _ignoreOther) {\n\t\tvar res = this === loc;\n\t\tif (!res && loc instanceof CurveLocation) {\n\t\t\tvar c1 = this.getCurve(),\n\t\t\t\tc2 = loc.getCurve(),\n\t\t\t\tp1 = c1._path,\n\t\t\t\tp2 = c2._path;\n\t\t\tif (p1 === p2) {\n\t\t\t\tvar abs = Math.abs,\n\t\t\t\t\tepsilon = 1e-7,\n\t\t\t\t\tdiff = abs(this.getOffset() - loc.getOffset()),\n\t\t\t\t\ti1 = !_ignoreOther && this._intersection,\n\t\t\t\t\ti2 = !_ignoreOther && loc._intersection;\n\t\t\t\tres = (diff < epsilon\n\t\t\t\t\t\t|| p1 && abs(p1.getLength() - diff) < epsilon)\n\t\t\t\t\t&& (!i1 && !i2 || i1 && i2 && i1.equals(i2, true));\n\t\t\t}\n\t\t}\n\t\treturn res;\n\t},\n\n\ttoString: function() {\n\t\tvar parts = [],\n\t\t\tpoint = this.getPoint(),\n\t\t\tf = Formatter.instance;\n\t\tif (point)\n\t\t\tparts.push('point: ' + point);\n\t\tvar index = this.getIndex();\n\t\tif (index != null)\n\t\t\tparts.push('index: ' + index);\n\t\tvar time = this.getTime();\n\t\tif (time != null)\n\t\t\tparts.push('time: ' + f.number(time));\n\t\tif (this._distance != null)\n\t\t\tparts.push('distance: ' + f.number(this._distance));\n\t\treturn '{ ' + parts.join(', ') + ' }';\n\t},\n\n\tisTouching: function() {\n\t\tvar inter = this._intersection;\n\t\tif (inter && this.getTangent().isCollinear(inter.getTangent())) {\n\t\t\tvar curve1 = this.getCurve(),\n\t\t\t\tcurve2 = inter.getCurve();\n\t\t\treturn !(curve1.isStraight() && curve2.isStraight()\n\t\t\t\t\t&& curve1.getLine().intersect(curve2.getLine()));\n\t\t}\n\t\treturn false;\n\t},\n\n\tisCrossing: function() {\n\t\tvar inter = this._intersection;\n\t\tif (!inter)\n\t\t\treturn false;\n\t\tvar t1 = this.getTime(),\n\t\t\tt2 = inter.getTime(),\n\t\t\ttMin = 1e-8,\n\t\t\ttMax = 1 - tMin,\n\t\t\tt1Inside = t1 >= tMin && t1 <= tMax,\n\t\t\tt2Inside = t2 >= tMin && t2 <= tMax;\n\t\tif (t1Inside && t2Inside)\n\t\t\treturn !this.isTouching();\n\t\tvar c2 = this.getCurve(),\n\t\t\tc1 = c2 && t1 < tMin ? c2.getPrevious() : c2,\n\t\t\tc4 = inter.getCurve(),\n\t\t\tc3 = c4 && t2 < tMin ? c4.getPrevious() : c4;\n\t\tif (t1 > tMax)\n\t\t\tc2 = c2.getNext();\n\t\tif (t2 > tMax)\n\t\t\tc4 = c4.getNext();\n\t\tif (!c1 || !c2 || !c3 || !c4)\n\t\t\treturn false;\n\n\t\tvar offsets = [];\n\n\t\tfunction addOffsets(curve, end) {\n\t\t\tvar v = curve.getValues(),\n\t\t\t\troots = Curve.classify(v).roots || Curve.getPeaks(v),\n\t\t\t\tcount = roots.length,\n\t\t\t\toffset = Curve.getLength(v,\n\t\t\t\t\tend && count ? roots[count - 1] : 0,\n\t\t\t\t\t!end && count ? roots[0] : 1);\n\t\t\toffsets.push(count ? offset : offset / 32);\n\t\t}\n\n\t\tfunction isInRange(angle, min, max) {\n\t\t\treturn min < max\n\t\t\t\t\t? angle > min && angle < max\n\t\t\t\t\t: angle > min || angle < max;\n\t\t}\n\n\t\tif (!t1Inside) {\n\t\t\taddOffsets(c1, true);\n\t\t\taddOffsets(c2, false);\n\t\t}\n\t\tif (!t2Inside) {\n\t\t\taddOffsets(c3, true);\n\t\t\taddOffsets(c4, false);\n\t\t}\n\t\tvar pt = this.getPoint(),\n\t\t\toffset = Math.min.apply(Math, offsets),\n\t\t\tv2 = t1Inside ? c2.getTangentAtTime(t1)\n\t\t\t\t\t: c2.getPointAt(offset).subtract(pt),\n\t\t\tv1 = t1Inside ? v2.negate()\n\t\t\t\t\t: c1.getPointAt(-offset).subtract(pt),\n\t\t\tv4 = t2Inside ? c4.getTangentAtTime(t2)\n\t\t\t\t\t: c4.getPointAt(offset).subtract(pt),\n\t\t\tv3 = t2Inside ? v4.negate()\n\t\t\t\t\t: c3.getPointAt(-offset).subtract(pt),\n\t\t\ta1 = v1.getAngle(),\n\t\t\ta2 = v2.getAngle(),\n\t\t\ta3 = v3.getAngle(),\n\t\t\ta4 = v4.getAngle();\n\t\treturn !!(t1Inside\n\t\t\t\t? (isInRange(a1, a3, a4) ^ isInRange(a2, a3, a4)) &&\n\t\t\t\t (isInRange(a1, a4, a3) ^ isInRange(a2, a4, a3))\n\t\t\t\t: (isInRange(a3, a1, a2) ^ isInRange(a4, a1, a2)) &&\n\t\t\t\t (isInRange(a3, a2, a1) ^ isInRange(a4, a2, a1)));\n\t},\n\n\thasOverlap: function() {\n\t\treturn !!this._overlap;\n\t}\n}, Base.each(Curve._evaluateMethods, function(name) {\n\tvar get = name + 'At';\n\tthis[name] = function() {\n\t\tvar curve = this.getCurve(),\n\t\t\ttime = this.getTime();\n\t\treturn time != null && curve && curve[get](time, true);\n\t};\n}, {\n\tpreserve: true\n}),\nnew function() {\n\n\tfunction insert(locations, loc, merge) {\n\t\tvar length = locations.length,\n\t\t\tl = 0,\n\t\t\tr = length - 1;\n\n\t\tfunction search(index, dir) {\n\t\t\tfor (var i = index + dir; i >= -1 && i <= length; i += dir) {\n\t\t\t\tvar loc2 = locations[((i % length) + length) % length];\n\t\t\t\tif (!loc.getPoint().isClose(loc2.getPoint(),\n\t\t\t\t\t\t1e-7))\n\t\t\t\t\tbreak;\n\t\t\t\tif (loc.equals(loc2))\n\t\t\t\t\treturn loc2;\n\t\t\t}\n\t\t\treturn null;\n\t\t}\n\n\t\twhile (l <= r) {\n\t\t\tvar m = (l + r) >>> 1,\n\t\t\t\tloc2 = locations[m],\n\t\t\t\tfound;\n\t\t\tif (merge && (found = loc.equals(loc2) ? loc2\n\t\t\t\t\t: (search(m, -1) || search(m, 1)))) {\n\t\t\t\tif (loc._overlap) {\n\t\t\t\t\tfound._overlap = found._intersection._overlap = true;\n\t\t\t\t}\n\t\t\t\treturn found;\n\t\t\t}\n\t\tvar path1 = loc.getPath(),\n\t\t\tpath2 = loc2.getPath(),\n\t\t\tdiff = path1 !== path2\n\t\t\t\t? path1._id - path2._id\n\t\t\t\t: (loc.getIndex() + loc.getTime())\n\t\t\t\t- (loc2.getIndex() + loc2.getTime());\n\t\t\tif (diff < 0) {\n\t\t\t\tr = m - 1;\n\t\t\t} else {\n\t\t\t\tl = m + 1;\n\t\t\t}\n\t\t}\n\t\tlocations.splice(l, 0, loc);\n\t\treturn loc;\n\t}\n\n\treturn { statics: {\n\t\tinsert: insert,\n\n\t\texpand: function(locations) {\n\t\t\tvar expanded = locations.slice();\n\t\t\tfor (var i = locations.length - 1; i >= 0; i--) {\n\t\t\t\tinsert(expanded, locations[i]._intersection, false);\n\t\t\t}\n\t\t\treturn expanded;\n\t\t}\n\t}};\n});\n\nvar PathItem = Item.extend({\n\t_class: 'PathItem',\n\t_selectBounds: false,\n\t_canScaleStroke: true,\n\tbeans: true,\n\n\tinitialize: function PathItem() {\n\t},\n\n\tstatics: {\n\t\tcreate: function(arg) {\n\t\t\tvar data,\n\t\t\t\tsegments,\n\t\t\t\tcompound;\n\t\t\tif (Base.isPlainObject(arg)) {\n\t\t\t\tsegments = arg.segments;\n\t\t\t\tdata = arg.pathData;\n\t\t\t} else if (Array.isArray(arg)) {\n\t\t\t\tsegments = arg;\n\t\t\t} else if (typeof arg === 'string') {\n\t\t\t\tdata = arg;\n\t\t\t}\n\t\t\tif (segments) {\n\t\t\t\tvar first = segments[0];\n\t\t\t\tcompound = first && Array.isArray(first[0]);\n\t\t\t} else if (data) {\n\t\t\t\tcompound = (data.match(/m/gi) || []).length > 1\n\t\t\t\t\t\t|| /z\\s*\\S+/i.test(data);\n\t\t\t}\n\t\t\tvar ctor = compound ? CompoundPath : Path;\n\t\t\treturn new ctor(arg);\n\t\t}\n\t},\n\n\t_asPathItem: function() {\n\t\treturn this;\n\t},\n\n\tisClockwise: function() {\n\t\treturn this.getArea() >= 0;\n\t},\n\n\tsetClockwise: function(clockwise) {\n\t\tif (this.isClockwise() != (clockwise = !!clockwise))\n\t\t\tthis.reverse();\n\t},\n\n\tsetPathData: function(data) {\n\n\t\tvar parts = data && data.match(/[mlhvcsqtaz][^mlhvcsqtaz]*/ig),\n\t\t\tcoords,\n\t\t\trelative = false,\n\t\t\tprevious,\n\t\t\tcontrol,\n\t\t\tcurrent = new Point(),\n\t\t\tstart = new Point();\n\n\t\tfunction getCoord(index, coord) {\n\t\t\tvar val = +coords[index];\n\t\t\tif (relative)\n\t\t\t\tval += current[coord];\n\t\t\treturn val;\n\t\t}\n\n\t\tfunction getPoint(index) {\n\t\t\treturn new Point(\n\t\t\t\tgetCoord(index, 'x'),\n\t\t\t\tgetCoord(index + 1, 'y')\n\t\t\t);\n\t\t}\n\n\t\tthis.clear();\n\n\t\tfor (var i = 0, l = parts && parts.length; i < l; i++) {\n\t\t\tvar part = parts[i],\n\t\t\t\tcommand = part[0],\n\t\t\t\tlower = command.toLowerCase();\n\t\t\tcoords = part.match(/[+-]?(?:\\d*\\.\\d+|\\d+\\.?)(?:[eE][+-]?\\d+)?/g);\n\t\t\tvar length = coords && coords.length;\n\t\t\trelative = command === lower;\n\t\t\tif (previous === 'z' && !/[mz]/.test(lower))\n\t\t\t\tthis.moveTo(current);\n\t\t\tswitch (lower) {\n\t\t\tcase 'm':\n\t\t\tcase 'l':\n\t\t\t\tvar move = lower === 'm';\n\t\t\t\tfor (var j = 0; j < length; j += 2) {\n\t\t\t\t\tthis[move ? 'moveTo' : 'lineTo'](current = getPoint(j));\n\t\t\t\t\tif (move) {\n\t\t\t\t\t\tstart = current;\n\t\t\t\t\t\tmove = false;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tcontrol = current;\n\t\t\t\tbreak;\n\t\t\tcase 'h':\n\t\t\tcase 'v':\n\t\t\t\tvar coord = lower === 'h' ? 'x' : 'y';\n\t\t\t\tcurrent = current.clone();\n\t\t\t\tfor (var j = 0; j < length; j++) {\n\t\t\t\t\tcurrent[coord] = getCoord(j, coord);\n\t\t\t\t\tthis.lineTo(current);\n\t\t\t\t}\n\t\t\t\tcontrol = current;\n\t\t\t\tbreak;\n\t\t\tcase 'c':\n\t\t\t\tfor (var j = 0; j < length; j += 6) {\n\t\t\t\t\tthis.cubicCurveTo(\n\t\t\t\t\t\t\tgetPoint(j),\n\t\t\t\t\t\t\tcontrol = getPoint(j + 2),\n\t\t\t\t\t\t\tcurrent = getPoint(j + 4));\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase 's':\n\t\t\t\tfor (var j = 0; j < length; j += 4) {\n\t\t\t\t\tthis.cubicCurveTo(\n\t\t\t\t\t\t\t/[cs]/.test(previous)\n\t\t\t\t\t\t\t\t\t? current.multiply(2).subtract(control)\n\t\t\t\t\t\t\t\t\t: current,\n\t\t\t\t\t\t\tcontrol = getPoint(j),\n\t\t\t\t\t\t\tcurrent = getPoint(j + 2));\n\t\t\t\t\tprevious = lower;\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase 'q':\n\t\t\t\tfor (var j = 0; j < length; j += 4) {\n\t\t\t\t\tthis.quadraticCurveTo(\n\t\t\t\t\t\t\tcontrol = getPoint(j),\n\t\t\t\t\t\t\tcurrent = getPoint(j + 2));\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase 't':\n\t\t\t\tfor (var j = 0; j < length; j += 2) {\n\t\t\t\t\tthis.quadraticCurveTo(\n\t\t\t\t\t\t\tcontrol = (/[qt]/.test(previous)\n\t\t\t\t\t\t\t\t\t? current.multiply(2).subtract(control)\n\t\t\t\t\t\t\t\t\t: current),\n\t\t\t\t\t\t\tcurrent = getPoint(j));\n\t\t\t\t\tprevious = lower;\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase 'a':\n\t\t\t\tfor (var j = 0; j < length; j += 7) {\n\t\t\t\t\tthis.arcTo(current = getPoint(j + 5),\n\t\t\t\t\t\t\tnew Size(+coords[j], +coords[j + 1]),\n\t\t\t\t\t\t\t+coords[j + 2], +coords[j + 4], +coords[j + 3]);\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase 'z':\n\t\t\t\tthis.closePath(1e-12);\n\t\t\t\tcurrent = start;\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tprevious = lower;\n\t\t}\n\t},\n\n\t_canComposite: function() {\n\t\treturn !(this.hasFill() && this.hasStroke());\n\t},\n\n\t_contains: function(point) {\n\t\tvar winding = point.isInside(\n\t\t\t\tthis.getBounds({ internal: true, handle: true }))\n\t\t\t\t\t? this._getWinding(point)\n\t\t\t\t\t: {};\n\t\treturn winding.onPath || !!(this.getFillRule() === 'evenodd'\n\t\t\t\t? winding.windingL & 1 || winding.windingR & 1\n\t\t\t\t: winding.winding);\n\t},\n\n\tgetIntersections: function(path, include, _matrix, _returnFirst) {\n\t\tvar self = this === path || !path,\n\t\t\tmatrix1 = this._matrix._orNullIfIdentity(),\n\t\t\tmatrix2 = self ? matrix1\n\t\t\t\t: (_matrix || path._matrix)._orNullIfIdentity();\n\t\treturn self || this.getBounds(matrix1).intersects(\n\t\t\t\tpath.getBounds(matrix2), 1e-12)\n\t\t\t\t? Curve.getIntersections(\n\t\t\t\t\t\tthis.getCurves(), !self && path.getCurves(), include,\n\t\t\t\t\t\tmatrix1, matrix2, _returnFirst)\n\t\t\t\t: [];\n\t},\n\n\tgetCrossings: function(path) {\n\t\treturn this.getIntersections(path, function(inter) {\n\t\t\treturn inter.isCrossing();\n\t\t});\n\t},\n\n\tgetNearestLocation: function() {\n\t\tvar point = Point.read(arguments),\n\t\t\tcurves = this.getCurves(),\n\t\t\tminDist = Infinity,\n\t\t\tminLoc = null;\n\t\tfor (var i = 0, l = curves.length; i < l; i++) {\n\t\t\tvar loc = curves[i].getNearestLocation(point);\n\t\t\tif (loc._distance < minDist) {\n\t\t\t\tminDist = loc._distance;\n\t\t\t\tminLoc = loc;\n\t\t\t}\n\t\t}\n\t\treturn minLoc;\n\t},\n\n\tgetNearestPoint: function() {\n\t\tvar loc = this.getNearestLocation.apply(this, arguments);\n\t\treturn loc ? loc.getPoint() : loc;\n\t},\n\n\tinterpolate: function(from, to, factor) {\n\t\tvar isPath = !this._children,\n\t\t\tname = isPath ? '_segments' : '_children',\n\t\t\titemsFrom = from[name],\n\t\t\titemsTo = to[name],\n\t\t\titems = this[name];\n\t\tif (!itemsFrom || !itemsTo || itemsFrom.length !== itemsTo.length) {\n\t\t\tthrow new Error('Invalid operands in interpolate() call: ' +\n\t\t\t\t\tfrom + ', ' + to);\n\t\t}\n\t\tvar current = items.length,\n\t\t\tlength = itemsTo.length;\n\t\tif (current < length) {\n\t\t\tvar ctor = isPath ? Segment : Path;\n\t\t\tfor (var i = current; i < length; i++) {\n\t\t\t\tthis.add(new ctor());\n\t\t\t}\n\t\t} else if (current > length) {\n\t\t\tthis[isPath ? 'removeSegments' : 'removeChildren'](length, current);\n\t\t}\n\t\tfor (var i = 0; i < length; i++) {\n\t\t\titems[i].interpolate(itemsFrom[i], itemsTo[i], factor);\n\t\t}\n\t\tif (isPath) {\n\t\t\tthis.setClosed(from._closed);\n\t\t\tthis._changed(9);\n\t\t}\n\t},\n\n\tcompare: function(path) {\n\t\tvar ok = false;\n\t\tif (path) {\n\t\t\tvar paths1 = this._children || [this],\n\t\t\t\tpaths2 = path._children ? path._children.slice() : [path],\n\t\t\t\tlength1 = paths1.length,\n\t\t\t\tlength2 = paths2.length,\n\t\t\t\tmatched = [],\n\t\t\t\tcount = 0;\n\t\t\tok = true;\n\t\t\tvar boundsOverlaps = CollisionDetection.findItemBoundsCollisions(paths1, paths2, Numerical.GEOMETRIC_EPSILON);\n\t\t\tfor (var i1 = length1 - 1; i1 >= 0 && ok; i1--) {\n\t\t\t\tvar path1 = paths1[i1];\n\t\t\t\tok = false;\n\t\t\t\tvar pathBoundsOverlaps = boundsOverlaps[i1];\n\t\t\t\tif (pathBoundsOverlaps) {\n\t\t\t\t\tfor (var i2 = pathBoundsOverlaps.length - 1; i2 >= 0 && !ok; i2--) {\n\t\t\t\t\t\tif (path1.compare(paths2[pathBoundsOverlaps[i2]])) {\n\t\t\t\t\t\t\tif (!matched[pathBoundsOverlaps[i2]]) {\n\t\t\t\t\t\t\t\tmatched[pathBoundsOverlaps[i2]] = true;\n\t\t\t\t\t\t\t\tcount++;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tok = true;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tok = ok && count === length2;\n\t\t}\n\t\treturn ok;\n\t},\n\n});\n\nvar Path = PathItem.extend({\n\t_class: 'Path',\n\t_serializeFields: {\n\t\tsegments: [],\n\t\tclosed: false\n\t},\n\n\tinitialize: function Path(arg) {\n\t\tthis._closed = false;\n\t\tthis._segments = [];\n\t\tthis._version = 0;\n\t\tvar args = arguments,\n\t\t\tsegments = Array.isArray(arg)\n\t\t\t? typeof arg[0] === 'object'\n\t\t\t\t? arg\n\t\t\t\t: args\n\t\t\t: arg && (arg.size === undefined && (arg.x !== undefined\n\t\t\t\t\t|| arg.point !== undefined))\n\t\t\t\t? args\n\t\t\t\t: null;\n\t\tif (segments && segments.length > 0) {\n\t\t\tthis.setSegments(segments);\n\t\t} else {\n\t\t\tthis._curves = undefined;\n\t\t\tthis._segmentSelection = 0;\n\t\t\tif (!segments && typeof arg === 'string') {\n\t\t\t\tthis.setPathData(arg);\n\t\t\t\targ = null;\n\t\t\t}\n\t\t}\n\t\tthis._initialize(!segments && arg);\n\t},\n\n\t_equals: function(item) {\n\t\treturn this._closed === item._closed\n\t\t\t\t&& Base.equals(this._segments, item._segments);\n\t},\n\n\tcopyContent: function(source) {\n\t\tthis.setSegments(source._segments);\n\t\tthis._closed = source._closed;\n\t},\n\n\t_changed: function _changed(flags) {\n\t\t_changed.base.call(this, flags);\n\t\tif (flags & 8) {\n\t\t\tthis._length = this._area = undefined;\n\t\t\tif (flags & 32) {\n\t\t\t\tthis._version++;\n\t\t\t} else if (this._curves) {\n\t\t\t for (var i = 0, l = this._curves.length; i < l; i++)\n\t\t\t\t\tthis._curves[i]._changed();\n\t\t\t}\n\t\t} else if (flags & 64) {\n\t\t\tthis._bounds = undefined;\n\t\t}\n\t},\n\n\tgetStyle: function() {\n\t\tvar parent = this._parent;\n\t\treturn (parent instanceof CompoundPath ? parent : this)._style;\n\t},\n\n\tgetSegments: function() {\n\t\treturn this._segments;\n\t},\n\n\tsetSegments: function(segments) {\n\t\tvar fullySelected = this.isFullySelected(),\n\t\t\tlength = segments && segments.length;\n\t\tthis._segments.length = 0;\n\t\tthis._segmentSelection = 0;\n\t\tthis._curves = undefined;\n\t\tif (length) {\n\t\t\tvar last = segments[length - 1];\n\t\t\tif (typeof last === 'boolean') {\n\t\t\t\tthis.setClosed(last);\n\t\t\t\tlength--;\n\t\t\t}\n\t\t\tthis._add(Segment.readList(segments, 0, {}, length));\n\t\t}\n\t\tif (fullySelected)\n\t\t\tthis.setFullySelected(true);\n\t},\n\n\tgetFirstSegment: function() {\n\t\treturn this._segments[0];\n\t},\n\n\tgetLastSegment: function() {\n\t\treturn this._segments[this._segments.length - 1];\n\t},\n\n\tgetCurves: function() {\n\t\tvar curves = this._curves,\n\t\t\tsegments = this._segments;\n\t\tif (!curves) {\n\t\t\tvar length = this._countCurves();\n\t\t\tcurves = this._curves = new Array(length);\n\t\t\tfor (var i = 0; i < length; i++)\n\t\t\t\tcurves[i] = new Curve(this, segments[i],\n\t\t\t\t\tsegments[i + 1] || segments[0]);\n\t\t}\n\t\treturn curves;\n\t},\n\n\tgetFirstCurve: function() {\n\t\treturn this.getCurves()[0];\n\t},\n\n\tgetLastCurve: function() {\n\t\tvar curves = this.getCurves();\n\t\treturn curves[curves.length - 1];\n\t},\n\n\tisClosed: function() {\n\t\treturn this._closed;\n\t},\n\n\tsetClosed: function(closed) {\n\t\tif (this._closed != (closed = !!closed)) {\n\t\t\tthis._closed = closed;\n\t\t\tif (this._curves) {\n\t\t\t\tvar length = this._curves.length = this._countCurves();\n\t\t\t\tif (closed)\n\t\t\t\t\tthis._curves[length - 1] = new Curve(this,\n\t\t\t\t\t\tthis._segments[length - 1], this._segments[0]);\n\t\t\t}\n\t\t\tthis._changed(41);\n\t\t}\n\t}\n}, {\n\tbeans: true,\n\n\tgetPathData: function(_matrix, _precision) {\n\t\tvar segments = this._segments,\n\t\t\tlength = segments.length,\n\t\t\tf = new Formatter(_precision),\n\t\t\tcoords = new Array(6),\n\t\t\tfirst = true,\n\t\t\tcurX, curY,\n\t\t\tprevX, prevY,\n\t\t\tinX, inY,\n\t\t\toutX, outY,\n\t\t\tparts = [];\n\n\t\tfunction addSegment(segment, skipLine) {\n\t\t\tsegment._transformCoordinates(_matrix, coords);\n\t\t\tcurX = coords[0];\n\t\t\tcurY = coords[1];\n\t\t\tif (first) {\n\t\t\t\tparts.push('M' + f.pair(curX, curY));\n\t\t\t\tfirst = false;\n\t\t\t} else {\n\t\t\t\tinX = coords[2];\n\t\t\t\tinY = coords[3];\n\t\t\t\tif (inX === curX && inY === curY\n\t\t\t\t\t\t&& outX === prevX && outY === prevY) {\n\t\t\t\t\tif (!skipLine) {\n\t\t\t\t\t\tvar dx = curX - prevX,\n\t\t\t\t\t\t\tdy = curY - prevY;\n\t\t\t\t\t\tparts.push(\n\t\t\t\t\t\t\t dx === 0 ? 'v' + f.number(dy)\n\t\t\t\t\t\t\t: dy === 0 ? 'h' + f.number(dx)\n\t\t\t\t\t\t\t: 'l' + f.pair(dx, dy));\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\tparts.push('c' + f.pair(outX - prevX, outY - prevY)\n\t\t\t\t\t\t\t + ' ' + f.pair( inX - prevX, inY - prevY)\n\t\t\t\t\t\t\t + ' ' + f.pair(curX - prevX, curY - prevY));\n\t\t\t\t}\n\t\t\t}\n\t\t\tprevX = curX;\n\t\t\tprevY = curY;\n\t\t\toutX = coords[4];\n\t\t\toutY = coords[5];\n\t\t}\n\n\t\tif (!length)\n\t\t\treturn '';\n\n\t\tfor (var i = 0; i < length; i++)\n\t\t\taddSegment(segments[i]);\n\t\tif (this._closed && length > 0) {\n\t\t\taddSegment(segments[0], true);\n\t\t\tparts.push('z');\n\t\t}\n\t\treturn parts.join('');\n\t},\n\n\tisEmpty: function() {\n\t\treturn !this._segments.length;\n\t},\n\n\t_transformContent: function(matrix) {\n\t\tvar segments = this._segments,\n\t\t\tcoords = new Array(6);\n\t\tfor (var i = 0, l = segments.length; i < l; i++)\n\t\t\tsegments[i]._transformCoordinates(matrix, coords, true);\n\t\treturn true;\n\t},\n\n\t_add: function(segs, index) {\n\t\tvar segments = this._segments,\n\t\t\tcurves = this._curves,\n\t\t\tamount = segs.length,\n\t\t\tappend = index == null,\n\t\t\tindex = append ? segments.length : index;\n\t\tfor (var i = 0; i < amount; i++) {\n\t\t\tvar segment = segs[i];\n\t\t\tif (segment._path)\n\t\t\t\tsegment = segs[i] = segment.clone();\n\t\t\tsegment._path = this;\n\t\t\tsegment._index = index + i;\n\t\t\tif (segment._selection)\n\t\t\t\tthis._updateSelection(segment, 0, segment._selection);\n\t\t}\n\t\tif (append) {\n\t\t\tBase.push(segments, segs);\n\t\t} else {\n\t\t\tsegments.splice.apply(segments, [index, 0].concat(segs));\n\t\t\tfor (var i = index + amount, l = segments.length; i < l; i++)\n\t\t\t\tsegments[i]._index = i;\n\t\t}\n\t\tif (curves) {\n\t\t\tvar total = this._countCurves(),\n\t\t\t\tstart = index > 0 && index + amount - 1 === total ? index - 1\n\t\t\t\t\t: index,\n\t\t\t\tinsert = start,\n\t\t\t\tend = Math.min(start + amount, total);\n\t\t\tif (segs._curves) {\n\t\t\t\tcurves.splice.apply(curves, [start, 0].concat(segs._curves));\n\t\t\t\tinsert += segs._curves.length;\n\t\t\t}\n\t\t\tfor (var i = insert; i < end; i++)\n\t\t\t\tcurves.splice(i, 0, new Curve(this, null, null));\n\t\t\tthis._adjustCurves(start, end);\n\t\t}\n\t\tthis._changed(41);\n\t\treturn segs;\n\t},\n\n\t_adjustCurves: function(start, end) {\n\t\tvar segments = this._segments,\n\t\t\tcurves = this._curves,\n\t\t\tcurve;\n\t\tfor (var i = start; i < end; i++) {\n\t\t\tcurve = curves[i];\n\t\t\tcurve._path = this;\n\t\t\tcurve._segment1 = segments[i];\n\t\t\tcurve._segment2 = segments[i + 1] || segments[0];\n\t\t\tcurve._changed();\n\t\t}\n\t\tif (curve = curves[this._closed && !start ? segments.length - 1\n\t\t\t\t: start - 1]) {\n\t\t\tcurve._segment2 = segments[start] || segments[0];\n\t\t\tcurve._changed();\n\t\t}\n\t\tif (curve = curves[end]) {\n\t\t\tcurve._segment1 = segments[end];\n\t\t\tcurve._changed();\n\t\t}\n\t},\n\n\t_countCurves: function() {\n\t\tvar length = this._segments.length;\n\t\treturn !this._closed && length > 0 ? length - 1 : length;\n\t},\n\n\tadd: function(segment1 ) {\n\t\tvar args = arguments;\n\t\treturn args.length > 1 && typeof segment1 !== 'number'\n\t\t\t? this._add(Segment.readList(args))\n\t\t\t: this._add([ Segment.read(args) ])[0];\n\t},\n\n\tinsert: function(index, segment1 ) {\n\t\tvar args = arguments;\n\t\treturn args.length > 2 && typeof segment1 !== 'number'\n\t\t\t? this._add(Segment.readList(args, 1), index)\n\t\t\t: this._add([ Segment.read(args, 1) ], index)[0];\n\t},\n\n\taddSegment: function() {\n\t\treturn this._add([ Segment.read(arguments) ])[0];\n\t},\n\n\tinsertSegment: function(index ) {\n\t\treturn this._add([ Segment.read(arguments, 1) ], index)[0];\n\t},\n\n\taddSegments: function(segments) {\n\t\treturn this._add(Segment.readList(segments));\n\t},\n\n\tinsertSegments: function(index, segments) {\n\t\treturn this._add(Segment.readList(segments), index);\n\t},\n\n\tremoveSegment: function(index) {\n\t\treturn this.removeSegments(index, index + 1)[0] || null;\n\t},\n\n\tremoveSegments: function(start, end, _includeCurves) {\n\t\tstart = start || 0;\n\t\tend = Base.pick(end, this._segments.length);\n\t\tvar segments = this._segments,\n\t\t\tcurves = this._curves,\n\t\t\tcount = segments.length,\n\t\t\tremoved = segments.splice(start, end - start),\n\t\t\tamount = removed.length;\n\t\tif (!amount)\n\t\t\treturn removed;\n\t\tfor (var i = 0; i < amount; i++) {\n\t\t\tvar segment = removed[i];\n\t\t\tif (segment._selection)\n\t\t\t\tthis._updateSelection(segment, segment._selection, 0);\n\t\t\tsegment._index = segment._path = null;\n\t\t}\n\t\tfor (var i = start, l = segments.length; i < l; i++)\n\t\t\tsegments[i]._index = i;\n\t\tif (curves) {\n\t\t\tvar index = start > 0 && end === count + (this._closed ? 1 : 0)\n\t\t\t\t\t? start - 1\n\t\t\t\t\t: start,\n\t\t\t\tcurves = curves.splice(index, amount);\n\t\t\tfor (var i = curves.length - 1; i >= 0; i--)\n\t\t\t\tcurves[i]._path = null;\n\t\t\tif (_includeCurves)\n\t\t\t\tremoved._curves = curves.slice(1);\n\t\t\tthis._adjustCurves(index, index);\n\t\t}\n\t\tthis._changed(41);\n\t\treturn removed;\n\t},\n\n\tclear: '#removeSegments',\n\n\thasHandles: function() {\n\t\tvar segments = this._segments;\n\t\tfor (var i = 0, l = segments.length; i < l; i++) {\n\t\t\tif (segments[i].hasHandles())\n\t\t\t\treturn true;\n\t\t}\n\t\treturn false;\n\t},\n\n\tclearHandles: function() {\n\t\tvar segments = this._segments;\n\t\tfor (var i = 0, l = segments.length; i < l; i++)\n\t\t\tsegments[i].clearHandles();\n\t},\n\n\tgetLength: function() {\n\t\tif (this._length == null) {\n\t\t\tvar curves = this.getCurves(),\n\t\t\t\tlength = 0;\n\t\t\tfor (var i = 0, l = curves.length; i < l; i++)\n\t\t\t\tlength += curves[i].getLength();\n\t\t\tthis._length = length;\n\t\t}\n\t\treturn this._length;\n\t},\n\n\tgetArea: function() {\n\t\tvar area = this._area;\n\t\tif (area == null) {\n\t\t\tvar segments = this._segments,\n\t\t\t\tclosed = this._closed;\n\t\t\tarea = 0;\n\t\t\tfor (var i = 0, l = segments.length; i < l; i++) {\n\t\t\t\tvar last = i + 1 === l;\n\t\t\t\tarea += Curve.getArea(Curve.getValues(\n\t\t\t\t\t\tsegments[i], segments[last ? 0 : i + 1],\n\t\t\t\t\t\tnull, last && !closed));\n\t\t\t}\n\t\t\tthis._area = area;\n\t\t}\n\t\treturn area;\n\t},\n\n\tisFullySelected: function() {\n\t\tvar length = this._segments.length;\n\t\treturn this.isSelected() && length > 0 && this._segmentSelection\n\t\t\t\t=== length * 7;\n\t},\n\n\tsetFullySelected: function(selected) {\n\t\tif (selected)\n\t\t\tthis._selectSegments(true);\n\t\tthis.setSelected(selected);\n\t},\n\n\tsetSelection: function setSelection(selection) {\n\t\tif (!(selection & 1))\n\t\t\tthis._selectSegments(false);\n\t\tsetSelection.base.call(this, selection);\n\t},\n\n\t_selectSegments: function(selected) {\n\t\tvar segments = this._segments,\n\t\t\tlength = segments.length,\n\t\t\tselection = selected ? 7 : 0;\n\t\tthis._segmentSelection = selection * length;\n\t\tfor (var i = 0; i < length; i++)\n\t\t\tsegments[i]._selection = selection;\n\t},\n\n\t_updateSelection: function(segment, oldSelection, newSelection) {\n\t\tsegment._selection = newSelection;\n\t\tvar selection = this._segmentSelection += newSelection - oldSelection;\n\t\tif (selection > 0)\n\t\t\tthis.setSelected(true);\n\t},\n\n\tdivideAt: function(location) {\n\t\tvar loc = this.getLocationAt(location),\n\t\t\tcurve;\n\t\treturn loc && (curve = loc.getCurve().divideAt(loc.getCurveOffset()))\n\t\t\t\t? curve._segment1\n\t\t\t\t: null;\n\t},\n\n\tsplitAt: function(location) {\n\t\tvar loc = this.getLocationAt(location),\n\t\t\tindex = loc && loc.index,\n\t\t\ttime = loc && loc.time,\n\t\t\ttMin = 1e-8,\n\t\t\ttMax = 1 - tMin;\n\t\tif (time > tMax) {\n\t\t\tindex++;\n\t\t\ttime = 0;\n\t\t}\n\t\tvar curves = this.getCurves();\n\t\tif (index >= 0 && index < curves.length) {\n\t\t\tif (time >= tMin) {\n\t\t\t\tcurves[index++].divideAtTime(time);\n\t\t\t}\n\t\t\tvar segs = this.removeSegments(index, this._segments.length, true),\n\t\t\t\tpath;\n\t\t\tif (this._closed) {\n\t\t\t\tthis.setClosed(false);\n\t\t\t\tpath = this;\n\t\t\t} else {\n\t\t\t\tpath = new Path(Item.NO_INSERT);\n\t\t\t\tpath.insertAbove(this);\n\t\t\t\tpath.copyAttributes(this);\n\t\t\t}\n\t\t\tpath._add(segs, 0);\n\t\t\tthis.addSegment(segs[0]);\n\t\t\treturn path;\n\t\t}\n\t\treturn null;\n\t},\n\n\tsplit: function(index, time) {\n\t\tvar curve,\n\t\t\tlocation = time === undefined ? index\n\t\t\t\t: (curve = this.getCurves()[index])\n\t\t\t\t\t&& curve.getLocationAtTime(time);\n\t\treturn location != null ? this.splitAt(location) : null;\n\t},\n\n\tjoin: function(path, tolerance) {\n\t\tvar epsilon = tolerance || 0;\n\t\tif (path && path !== this) {\n\t\t\tvar segments = path._segments,\n\t\t\t\tlast1 = this.getLastSegment(),\n\t\t\t\tlast2 = path.getLastSegment();\n\t\t\tif (!last2)\n\t\t\t\treturn this;\n\t\t\tif (last1 && last1._point.isClose(last2._point, epsilon))\n\t\t\t\tpath.reverse();\n\t\t\tvar first2 = path.getFirstSegment();\n\t\t\tif (last1 && last1._point.isClose(first2._point, epsilon)) {\n\t\t\t\tlast1.setHandleOut(first2._handleOut);\n\t\t\t\tthis._add(segments.slice(1));\n\t\t\t} else {\n\t\t\t\tvar first1 = this.getFirstSegment();\n\t\t\t\tif (first1 && first1._point.isClose(first2._point, epsilon))\n\t\t\t\t\tpath.reverse();\n\t\t\t\tlast2 = path.getLastSegment();\n\t\t\t\tif (first1 && first1._point.isClose(last2._point, epsilon)) {\n\t\t\t\t\tfirst1.setHandleIn(last2._handleIn);\n\t\t\t\t\tthis._add(segments.slice(0, segments.length - 1), 0);\n\t\t\t\t} else {\n\t\t\t\t\tthis._add(segments.slice());\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (path._closed)\n\t\t\t\tthis._add([segments[0]]);\n\t\t\tpath.remove();\n\t\t}\n\t\tvar first = this.getFirstSegment(),\n\t\t\tlast = this.getLastSegment();\n\t\tif (first !== last && first._point.isClose(last._point, epsilon)) {\n\t\t\tfirst.setHandleIn(last._handleIn);\n\t\t\tlast.remove();\n\t\t\tthis.setClosed(true);\n\t\t}\n\t\treturn this;\n\t},\n\n\treduce: function(options) {\n\t\tvar curves = this.getCurves(),\n\t\t\tsimplify = options && options.simplify,\n\t\t\ttolerance = simplify ? 1e-7 : 0;\n\t\tfor (var i = curves.length - 1; i >= 0; i--) {\n\t\t\tvar curve = curves[i];\n\t\t\tif (!curve.hasHandles() && (!curve.hasLength(tolerance)\n\t\t\t\t\t|| simplify && curve.isCollinear(curve.getNext())))\n\t\t\t\tcurve.remove();\n\t\t}\n\t\treturn this;\n\t},\n\n\treverse: function() {\n\t\tthis._segments.reverse();\n\t\tfor (var i = 0, l = this._segments.length; i < l; i++) {\n\t\t\tvar segment = this._segments[i];\n\t\t\tvar handleIn = segment._handleIn;\n\t\t\tsegment._handleIn = segment._handleOut;\n\t\t\tsegment._handleOut = handleIn;\n\t\t\tsegment._index = i;\n\t\t}\n\t\tthis._curves = null;\n\t\tthis._changed(9);\n\t},\n\n\tflatten: function(flatness) {\n\t\tvar flattener = new PathFlattener(this, flatness || 0.25, 256, true),\n\t\t\tparts = flattener.parts,\n\t\t\tlength = parts.length,\n\t\t\tsegments = [];\n\t\tfor (var i = 0; i < length; i++) {\n\t\t\tsegments.push(new Segment(parts[i].curve.slice(0, 2)));\n\t\t}\n\t\tif (!this._closed && length > 0) {\n\t\t\tsegments.push(new Segment(parts[length - 1].curve.slice(6)));\n\t\t}\n\t\tthis.setSegments(segments);\n\t},\n\n\tsimplify: function(tolerance) {\n\t\tvar segments = new PathFitter(this).fit(tolerance || 2.5);\n\t\tif (segments)\n\t\t\tthis.setSegments(segments);\n\t\treturn !!segments;\n\t},\n\n\tsmooth: function(options) {\n\t\tvar that = this,\n\t\t\topts = options || {},\n\t\t\ttype = opts.type || 'asymmetric',\n\t\t\tsegments = this._segments,\n\t\t\tlength = segments.length,\n\t\t\tclosed = this._closed;\n\n\t\tfunction getIndex(value, _default) {\n\t\t\tvar index = value && value.index;\n\t\t\tif (index != null) {\n\t\t\t\tvar path = value.path;\n\t\t\t\tif (path && path !== that)\n\t\t\t\t\tthrow new Error(value._class + ' ' + index + ' of ' + path\n\t\t\t\t\t\t\t+ ' is not part of ' + that);\n\t\t\t\tif (_default && value instanceof Curve)\n\t\t\t\t\tindex++;\n\t\t\t} else {\n\t\t\t\tindex = typeof value === 'number' ? value : _default;\n\t\t\t}\n\t\t\treturn Math.min(index < 0 && closed\n\t\t\t\t\t? index % length\n\t\t\t\t\t: index < 0 ? index + length : index, length - 1);\n\t\t}\n\n\t\tvar loop = closed && opts.from === undefined && opts.to === undefined,\n\t\t\tfrom = getIndex(opts.from, 0),\n\t\t\tto = getIndex(opts.to, length - 1);\n\n\t\tif (from > to) {\n\t\t\tif (closed) {\n\t\t\t\tfrom -= length;\n\t\t\t} else {\n\t\t\t\tvar tmp = from;\n\t\t\t\tfrom = to;\n\t\t\t\tto = tmp;\n\t\t\t}\n\t\t}\n\t\tif (/^(?:asymmetric|continuous)$/.test(type)) {\n\t\t\tvar asymmetric = type === 'asymmetric',\n\t\t\t\tmin = Math.min,\n\t\t\t\tamount = to - from + 1,\n\t\t\t\tn = amount - 1,\n\t\t\t\tpadding = loop ? min(amount, 4) : 1,\n\t\t\t\tpaddingLeft = padding,\n\t\t\t\tpaddingRight = padding,\n\t\t\t\tknots = [];\n\t\t\tif (!closed) {\n\t\t\t\tpaddingLeft = min(1, from);\n\t\t\t\tpaddingRight = min(1, length - to - 1);\n\t\t\t}\n\t\t\tn += paddingLeft + paddingRight;\n\t\t\tif (n <= 1)\n\t\t\t\treturn;\n\t\t\tfor (var i = 0, j = from - paddingLeft; i <= n; i++, j++) {\n\t\t\t\tknots[i] = segments[(j < 0 ? j + length : j) % length]._point;\n\t\t\t}\n\n\t\t\tvar x = knots[0]._x + 2 * knots[1]._x,\n\t\t\t\ty = knots[0]._y + 2 * knots[1]._y,\n\t\t\t\tf = 2,\n\t\t\t\tn_1 = n - 1,\n\t\t\t\trx = [x],\n\t\t\t\try = [y],\n\t\t\t\trf = [f],\n\t\t\t\tpx = [],\n\t\t\t\tpy = [];\n\t\t\tfor (var i = 1; i < n; i++) {\n\t\t\t\tvar internal = i < n_1,\n\t\t\t\t\ta = internal ? 1 : asymmetric ? 1 : 2,\n\t\t\t\t\tb = internal ? 4 : asymmetric ? 2 : 7,\n\t\t\t\t\tu = internal ? 4 : asymmetric ? 3 : 8,\n\t\t\t\t\tv = internal ? 2 : asymmetric ? 0 : 1,\n\t\t\t\t\tm = a / f;\n\t\t\t\tf = rf[i] = b - m;\n\t\t\t\tx = rx[i] = u * knots[i]._x + v * knots[i + 1]._x - m * x;\n\t\t\t\ty = ry[i] = u * knots[i]._y + v * knots[i + 1]._y - m * y;\n\t\t\t}\n\n\t\t\tpx[n_1] = rx[n_1] / rf[n_1];\n\t\t\tpy[n_1] = ry[n_1] / rf[n_1];\n\t\t\tfor (var i = n - 2; i >= 0; i--) {\n\t\t\t\tpx[i] = (rx[i] - px[i + 1]) / rf[i];\n\t\t\t\tpy[i] = (ry[i] - py[i + 1]) / rf[i];\n\t\t\t}\n\t\t\tpx[n] = (3 * knots[n]._x - px[n_1]) / 2;\n\t\t\tpy[n] = (3 * knots[n]._y - py[n_1]) / 2;\n\n\t\t\tfor (var i = paddingLeft, max = n - paddingRight, j = from;\n\t\t\t\t\ti <= max; i++, j++) {\n\t\t\t\tvar segment = segments[j < 0 ? j + length : j],\n\t\t\t\t\tpt = segment._point,\n\t\t\t\t\thx = px[i] - pt._x,\n\t\t\t\t\thy = py[i] - pt._y;\n\t\t\t\tif (loop || i < max)\n\t\t\t\t\tsegment.setHandleOut(hx, hy);\n\t\t\t\tif (loop || i > paddingLeft)\n\t\t\t\t\tsegment.setHandleIn(-hx, -hy);\n\t\t\t}\n\t\t} else {\n\t\t\tfor (var i = from; i <= to; i++) {\n\t\t\t\tsegments[i < 0 ? i + length : i].smooth(opts,\n\t\t\t\t\t\t!loop && i === from, !loop && i === to);\n\t\t\t}\n\t\t}\n\t},\n\n\ttoShape: function(insert) {\n\t\tif (!this._closed)\n\t\t\treturn null;\n\n\t\tvar segments = this._segments,\n\t\t\ttype,\n\t\t\tsize,\n\t\t\tradius,\n\t\t\ttopCenter;\n\n\t\tfunction isCollinear(i, j) {\n\t\t\tvar seg1 = segments[i],\n\t\t\t\tseg2 = seg1.getNext(),\n\t\t\t\tseg3 = segments[j],\n\t\t\t\tseg4 = seg3.getNext();\n\t\t\treturn seg1._handleOut.isZero() && seg2._handleIn.isZero()\n\t\t\t\t\t&& seg3._handleOut.isZero() && seg4._handleIn.isZero()\n\t\t\t\t\t&& seg2._point.subtract(seg1._point).isCollinear(\n\t\t\t\t\t\tseg4._point.subtract(seg3._point));\n\t\t}\n\n\t\tfunction isOrthogonal(i) {\n\t\t\tvar seg2 = segments[i],\n\t\t\t\tseg1 = seg2.getPrevious(),\n\t\t\t\tseg3 = seg2.getNext();\n\t\t\treturn seg1._handleOut.isZero() && seg2._handleIn.isZero()\n\t\t\t\t\t&& seg2._handleOut.isZero() && seg3._handleIn.isZero()\n\t\t\t\t\t&& seg2._point.subtract(seg1._point).isOrthogonal(\n\t\t\t\t\t\tseg3._point.subtract(seg2._point));\n\t\t}\n\n\t\tfunction isArc(i) {\n\t\t\tvar seg1 = segments[i],\n\t\t\t\tseg2 = seg1.getNext(),\n\t\t\t\thandle1 = seg1._handleOut,\n\t\t\t\thandle2 = seg2._handleIn,\n\t\t\t\tkappa = 0.5522847498307936;\n\t\t\tif (handle1.isOrthogonal(handle2)) {\n\t\t\t\tvar pt1 = seg1._point,\n\t\t\t\t\tpt2 = seg2._point,\n\t\t\t\t\tcorner = new Line(pt1, handle1, true).intersect(\n\t\t\t\t\t\t\tnew Line(pt2, handle2, true), true);\n\t\t\t\treturn corner && Numerical.isZero(handle1.getLength() /\n\t\t\t\t\t\tcorner.subtract(pt1).getLength() - kappa)\n\t\t\t\t\t&& Numerical.isZero(handle2.getLength() /\n\t\t\t\t\t\tcorner.subtract(pt2).getLength() - kappa);\n\t\t\t}\n\t\t\treturn false;\n\t\t}\n\n\t\tfunction getDistance(i, j) {\n\t\t\treturn segments[i]._point.getDistance(segments[j]._point);\n\t\t}\n\n\t\tif (!this.hasHandles() && segments.length === 4\n\t\t\t\t&& isCollinear(0, 2) && isCollinear(1, 3) && isOrthogonal(1)) {\n\t\t\ttype = Shape.Rectangle;\n\t\t\tsize = new Size(getDistance(0, 3), getDistance(0, 1));\n\t\t\ttopCenter = segments[1]._point.add(segments[2]._point).divide(2);\n\t\t} else if (segments.length === 8 && isArc(0) && isArc(2) && isArc(4)\n\t\t\t\t&& isArc(6) && isCollinear(1, 5) && isCollinear(3, 7)) {\n\t\t\ttype = Shape.Rectangle;\n\t\t\tsize = new Size(getDistance(1, 6), getDistance(0, 3));\n\t\t\tradius = size.subtract(new Size(getDistance(0, 7),\n\t\t\t\t\tgetDistance(1, 2))).divide(2);\n\t\t\ttopCenter = segments[3]._point.add(segments[4]._point).divide(2);\n\t\t} else if (segments.length === 4\n\t\t\t\t&& isArc(0) && isArc(1) && isArc(2) && isArc(3)) {\n\t\t\tif (Numerical.isZero(getDistance(0, 2) - getDistance(1, 3))) {\n\t\t\t\ttype = Shape.Circle;\n\t\t\t\tradius = getDistance(0, 2) / 2;\n\t\t\t} else {\n\t\t\t\ttype = Shape.Ellipse;\n\t\t\t\tradius = new Size(getDistance(2, 0) / 2, getDistance(3, 1) / 2);\n\t\t\t}\n\t\t\ttopCenter = segments[1]._point;\n\t\t}\n\n\t\tif (type) {\n\t\t\tvar center = this.getPosition(true),\n\t\t\t\tshape = new type({\n\t\t\t\t\tcenter: center,\n\t\t\t\t\tsize: size,\n\t\t\t\t\tradius: radius,\n\t\t\t\t\tinsert: false\n\t\t\t\t});\n\t\t\tshape.copyAttributes(this, true);\n\t\t\tshape._matrix.prepend(this._matrix);\n\t\t\tshape.rotate(topCenter.subtract(center).getAngle() + 90);\n\t\t\tif (insert === undefined || insert)\n\t\t\t\tshape.insertAbove(this);\n\t\t\treturn shape;\n\t\t}\n\t\treturn null;\n\t},\n\n\ttoPath: '#clone',\n\n\tcompare: function compare(path) {\n\t\tif (!path || path instanceof CompoundPath)\n\t\t\treturn compare.base.call(this, path);\n\t\tvar curves1 = this.getCurves(),\n\t\t\tcurves2 = path.getCurves(),\n\t\t\tlength1 = curves1.length,\n\t\t\tlength2 = curves2.length;\n\t\tif (!length1 || !length2) {\n\t\t\treturn length1 == length2;\n\t\t}\n\t\tvar v1 = curves1[0].getValues(),\n\t\t\tvalues2 = [],\n\t\t\tpos1 = 0, pos2,\n\t\t\tend1 = 0, end2;\n\t\tfor (var i = 0; i < length2; i++) {\n\t\t\tvar v2 = curves2[i].getValues();\n\t\t\tvalues2.push(v2);\n\t\t\tvar overlaps = Curve.getOverlaps(v1, v2);\n\t\t\tif (overlaps) {\n\t\t\t\tpos2 = !i && overlaps[0][0] > 0 ? length2 - 1 : i;\n\t\t\t\tend2 = overlaps[0][1];\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t\tvar abs = Math.abs,\n\t\t\tepsilon = 1e-8,\n\t\t\tv2 = values2[pos2],\n\t\t\tstart2;\n\t\twhile (v1 && v2) {\n\t\t\tvar overlaps = Curve.getOverlaps(v1, v2);\n\t\t\tif (overlaps) {\n\t\t\t\tvar t1 = overlaps[0][0];\n\t\t\t\tif (abs(t1 - end1) < epsilon) {\n\t\t\t\t\tend1 = overlaps[1][0];\n\t\t\t\t\tif (end1 === 1) {\n\t\t\t\t\t\tv1 = ++pos1 < length1 ? curves1[pos1].getValues() : null;\n\t\t\t\t\t\tend1 = 0;\n\t\t\t\t\t}\n\t\t\t\t\tvar t2 = overlaps[0][1];\n\t\t\t\t\tif (abs(t2 - end2) < epsilon) {\n\t\t\t\t\t\tif (!start2)\n\t\t\t\t\t\t\tstart2 = [pos2, t2];\n\t\t\t\t\t\tend2 = overlaps[1][1];\n\t\t\t\t\t\tif (end2 === 1) {\n\t\t\t\t\t\t\tif (++pos2 >= length2)\n\t\t\t\t\t\t\t\tpos2 = 0;\n\t\t\t\t\t\t\tv2 = values2[pos2] || curves2[pos2].getValues();\n\t\t\t\t\t\t\tend2 = 0;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif (!v1) {\n\t\t\t\t\t\t\treturn start2[0] === pos2 && start2[1] === end2;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tbreak;\n\t\t}\n\t\treturn false;\n\t},\n\n\t_hitTestSelf: function(point, options, viewMatrix, strokeMatrix) {\n\t\tvar that = this,\n\t\t\tstyle = this.getStyle(),\n\t\t\tsegments = this._segments,\n\t\t\tnumSegments = segments.length,\n\t\t\tclosed = this._closed,\n\t\t\ttolerancePadding = options._tolerancePadding,\n\t\t\tstrokePadding = tolerancePadding,\n\t\t\tjoin, cap, miterLimit,\n\t\t\tarea, loc, res,\n\t\t\thitStroke = options.stroke && style.hasStroke(),\n\t\t\thitFill = options.fill && style.hasFill(),\n\t\t\thitCurves = options.curves,\n\t\t\tstrokeRadius = hitStroke\n\t\t\t\t\t? style.getStrokeWidth() / 2\n\t\t\t\t\t: hitFill && options.tolerance > 0 || hitCurves\n\t\t\t\t\t\t? 0 : null;\n\t\tif (strokeRadius !== null) {\n\t\t\tif (strokeRadius > 0) {\n\t\t\t\tjoin = style.getStrokeJoin();\n\t\t\t\tcap = style.getStrokeCap();\n\t\t\t\tmiterLimit = style.getMiterLimit();\n\t\t\t\tstrokePadding = strokePadding.add(\n\t\t\t\t\tPath._getStrokePadding(strokeRadius, strokeMatrix));\n\t\t\t} else {\n\t\t\t\tjoin = cap = 'round';\n\t\t\t}\n\t\t}\n\n\t\tfunction isCloseEnough(pt, padding) {\n\t\t\treturn point.subtract(pt).divide(padding).length <= 1;\n\t\t}\n\n\t\tfunction checkSegmentPoint(seg, pt, name) {\n\t\t\tif (!options.selected || pt.isSelected()) {\n\t\t\t\tvar anchor = seg._point;\n\t\t\t\tif (pt !== anchor)\n\t\t\t\t\tpt = pt.add(anchor);\n\t\t\t\tif (isCloseEnough(pt, strokePadding)) {\n\t\t\t\t\treturn new HitResult(name, that, {\n\t\t\t\t\t\tsegment: seg,\n\t\t\t\t\t\tpoint: pt\n\t\t\t\t\t});\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tfunction checkSegmentPoints(seg, ends) {\n\t\t\treturn (ends || options.segments)\n\t\t\t\t&& checkSegmentPoint(seg, seg._point, 'segment')\n\t\t\t\t|| (!ends && options.handles) && (\n\t\t\t\t\tcheckSegmentPoint(seg, seg._handleIn, 'handle-in') ||\n\t\t\t\t\tcheckSegmentPoint(seg, seg._handleOut, 'handle-out'));\n\t\t}\n\n\t\tfunction addToArea(point) {\n\t\t\tarea.add(point);\n\t\t}\n\n\t\tfunction checkSegmentStroke(segment) {\n\t\t\tvar isJoin = closed || segment._index > 0\n\t\t\t\t\t&& segment._index < numSegments - 1;\n\t\t\tif ((isJoin ? join : cap) === 'round') {\n\t\t\t\treturn isCloseEnough(segment._point, strokePadding);\n\t\t\t} else {\n\t\t\t\tarea = new Path({ internal: true, closed: true });\n\t\t\t\tif (isJoin) {\n\t\t\t\t\tif (!segment.isSmooth()) {\n\t\t\t\t\t\tPath._addBevelJoin(segment, join, strokeRadius,\n\t\t\t\t\t\t\t miterLimit, null, strokeMatrix, addToArea, true);\n\t\t\t\t\t}\n\t\t\t\t} else if (cap === 'square') {\n\t\t\t\t\tPath._addSquareCap(segment, cap, strokeRadius, null,\n\t\t\t\t\t\t\tstrokeMatrix, addToArea, true);\n\t\t\t\t}\n\t\t\t\tif (!area.isEmpty()) {\n\t\t\t\t\tvar loc;\n\t\t\t\t\treturn area.contains(point)\n\t\t\t\t\t\t|| (loc = area.getNearestLocation(point))\n\t\t\t\t\t\t\t&& isCloseEnough(loc.getPoint(), tolerancePadding);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif (options.ends && !options.segments && !closed) {\n\t\t\tif (res = checkSegmentPoints(segments[0], true)\n\t\t\t\t\t|| checkSegmentPoints(segments[numSegments - 1], true))\n\t\t\t\treturn res;\n\t\t} else if (options.segments || options.handles) {\n\t\t\tfor (var i = 0; i < numSegments; i++)\n\t\t\t\tif (res = checkSegmentPoints(segments[i]))\n\t\t\t\t\treturn res;\n\t\t}\n\t\tif (strokeRadius !== null) {\n\t\t\tloc = this.getNearestLocation(point);\n\t\t\tif (loc) {\n\t\t\t\tvar time = loc.getTime();\n\t\t\t\tif (time === 0 || time === 1 && numSegments > 1) {\n\t\t\t\t\tif (!checkSegmentStroke(loc.getSegment()))\n\t\t\t\t\t\tloc = null;\n\t\t\t\t} else if (!isCloseEnough(loc.getPoint(), strokePadding)) {\n\t\t\t\t\tloc = null;\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (!loc && join === 'miter' && numSegments > 1) {\n\t\t\t\tfor (var i = 0; i < numSegments; i++) {\n\t\t\t\t\tvar segment = segments[i];\n\t\t\t\t\tif (point.getDistance(segment._point)\n\t\t\t\t\t\t\t<= miterLimit * strokeRadius\n\t\t\t\t\t\t\t&& checkSegmentStroke(segment)) {\n\t\t\t\t\t\tloc = segment.getLocation();\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn !loc && hitFill && this._contains(point)\n\t\t\t\t|| loc && !hitStroke && !hitCurves\n\t\t\t\t\t? new HitResult('fill', this)\n\t\t\t\t\t: loc\n\t\t\t\t\t\t? new HitResult(hitStroke ? 'stroke' : 'curve', this, {\n\t\t\t\t\t\t\tlocation: loc,\n\t\t\t\t\t\t\tpoint: loc.getPoint()\n\t\t\t\t\t\t})\n\t\t\t\t\t\t: null;\n\t}\n\n}, Base.each(Curve._evaluateMethods,\n\tfunction(name) {\n\t\tthis[name + 'At'] = function(offset) {\n\t\t\tvar loc = this.getLocationAt(offset);\n\t\t\treturn loc && loc[name]();\n\t\t};\n\t},\n{\n\tbeans: false,\n\n\tgetLocationOf: function() {\n\t\tvar point = Point.read(arguments),\n\t\t\tcurves = this.getCurves();\n\t\tfor (var i = 0, l = curves.length; i < l; i++) {\n\t\t\tvar loc = curves[i].getLocationOf(point);\n\t\t\tif (loc)\n\t\t\t\treturn loc;\n\t\t}\n\t\treturn null;\n\t},\n\n\tgetOffsetOf: function() {\n\t\tvar loc = this.getLocationOf.apply(this, arguments);\n\t\treturn loc ? loc.getOffset() : null;\n\t},\n\n\tgetLocationAt: function(offset) {\n\t\tif (typeof offset === 'number') {\n\t\t\tvar curves = this.getCurves(),\n\t\t\t\tlength = 0;\n\t\t\tfor (var i = 0, l = curves.length; i < l; i++) {\n\t\t\t\tvar start = length,\n\t\t\t\t\tcurve = curves[i];\n\t\t\t\tlength += curve.getLength();\n\t\t\t\tif (length > offset) {\n\t\t\t\t\treturn curve.getLocationAt(offset - start);\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (curves.length > 0 && offset <= this.getLength()) {\n\t\t\t\treturn new CurveLocation(curves[curves.length - 1], 1);\n\t\t\t}\n\t\t} else if (offset && offset.getPath && offset.getPath() === this) {\n\t\t\treturn offset;\n\t\t}\n\t\treturn null;\n\t},\n\n\tgetOffsetsWithTangent: function() {\n\t\tvar tangent = Point.read(arguments);\n\t\tif (tangent.isZero()) {\n\t\t\treturn [];\n\t\t}\n\n\t\tvar offsets = [];\n\t\tvar curveStart = 0;\n\t\tvar curves = this.getCurves();\n\t\tfor (var i = 0, l = curves.length; i < l; i++) {\n\t\t\tvar curve = curves[i];\n\t\t\tvar curveTimes = curve.getTimesWithTangent(tangent);\n\t\t\tfor (var j = 0, m = curveTimes.length; j < m; j++) {\n\t\t\t\tvar offset = curveStart + curve.getOffsetAtTime(curveTimes[j]);\n\t\t\t\tif (offsets.indexOf(offset) < 0) {\n\t\t\t\t\toffsets.push(offset);\n\t\t\t\t}\n\t\t\t}\n\t\t\tcurveStart += curve.length;\n\t\t}\n\t\treturn offsets;\n\t}\n}),\nnew function() {\n\n\tfunction drawHandles(ctx, segments, matrix, size) {\n\t\tif (size <= 0) return;\n\n\t\tvar half = size / 2,\n\t\t\tminiSize = size - 2,\n\t\t\tminiHalf = half - 1,\n\t\t\tcoords = new Array(6),\n\t\t\tpX, pY;\n\n\t\tfunction drawHandle(index) {\n\t\t\tvar hX = coords[index],\n\t\t\t\thY = coords[index + 1];\n\t\t\tif (pX != hX || pY != hY) {\n\t\t\t\tctx.beginPath();\n\t\t\t\tctx.moveTo(pX, pY);\n\t\t\t\tctx.lineTo(hX, hY);\n\t\t\t\tctx.stroke();\n\t\t\t\tctx.beginPath();\n\t\t\t\tctx.arc(hX, hY, half, 0, Math.PI * 2, true);\n\t\t\t\tctx.fill();\n\t\t\t}\n\t\t}\n\n\t\tfor (var i = 0, l = segments.length; i < l; i++) {\n\t\t\tvar segment = segments[i],\n\t\t\t\tselection = segment._selection;\n\t\t\tsegment._transformCoordinates(matrix, coords);\n\t\t\tpX = coords[0];\n\t\t\tpY = coords[1];\n\t\t\tif (selection & 2)\n\t\t\t\tdrawHandle(2);\n\t\t\tif (selection & 4)\n\t\t\t\tdrawHandle(4);\n\t\t\tctx.fillRect(pX - half, pY - half, size, size);\n\t\t\tif (miniSize > 0 && !(selection & 1)) {\n\t\t\t\tvar fillStyle = ctx.fillStyle;\n\t\t\t\tctx.fillStyle = '#ffffff';\n\t\t\t\tctx.fillRect(pX - miniHalf, pY - miniHalf, miniSize, miniSize);\n\t\t\t\tctx.fillStyle = fillStyle;\n\t\t\t}\n\t\t}\n\t}\n\n\tfunction drawSegments(ctx, path, matrix) {\n\t\tvar segments = path._segments,\n\t\t\tlength = segments.length,\n\t\t\tcoords = new Array(6),\n\t\t\tfirst = true,\n\t\t\tcurX, curY,\n\t\t\tprevX, prevY,\n\t\t\tinX, inY,\n\t\t\toutX, outY;\n\n\t\tfunction drawSegment(segment) {\n\t\t\tif (matrix) {\n\t\t\t\tsegment._transformCoordinates(matrix, coords);\n\t\t\t\tcurX = coords[0];\n\t\t\t\tcurY = coords[1];\n\t\t\t} else {\n\t\t\t\tvar point = segment._point;\n\t\t\t\tcurX = point._x;\n\t\t\t\tcurY = point._y;\n\t\t\t}\n\t\t\tif (first) {\n\t\t\t\tctx.moveTo(curX, curY);\n\t\t\t\tfirst = false;\n\t\t\t} else {\n\t\t\t\tif (matrix) {\n\t\t\t\t\tinX = coords[2];\n\t\t\t\t\tinY = coords[3];\n\t\t\t\t} else {\n\t\t\t\t\tvar handle = segment._handleIn;\n\t\t\t\t\tinX = curX + handle._x;\n\t\t\t\t\tinY = curY + handle._y;\n\t\t\t\t}\n\t\t\t\tif (inX === curX && inY === curY\n\t\t\t\t\t\t&& outX === prevX && outY === prevY) {\n\t\t\t\t\tctx.lineTo(curX, curY);\n\t\t\t\t} else {\n\t\t\t\t\tctx.bezierCurveTo(outX, outY, inX, inY, curX, curY);\n\t\t\t\t}\n\t\t\t}\n\t\t\tprevX = curX;\n\t\t\tprevY = curY;\n\t\t\tif (matrix) {\n\t\t\t\toutX = coords[4];\n\t\t\t\toutY = coords[5];\n\t\t\t} else {\n\t\t\t\tvar handle = segment._handleOut;\n\t\t\t\toutX = prevX + handle._x;\n\t\t\t\toutY = prevY + handle._y;\n\t\t\t}\n\t\t}\n\n\t\tfor (var i = 0; i < length; i++)\n\t\t\tdrawSegment(segments[i]);\n\t\tif (path._closed && length > 0)\n\t\t\tdrawSegment(segments[0]);\n\t}\n\n\treturn {\n\t\t_draw: function(ctx, param, viewMatrix, strokeMatrix) {\n\t\t\tvar dontStart = param.dontStart,\n\t\t\t\tdontPaint = param.dontFinish || param.clip,\n\t\t\t\tstyle = this.getStyle(),\n\t\t\t\thasFill = style.hasFill(),\n\t\t\t\thasStroke = style.hasStroke(),\n\t\t\t\tdashArray = style.getDashArray(),\n\t\t\t\tdashLength = !paper.support.nativeDash && hasStroke\n\t\t\t\t\t\t&& dashArray && dashArray.length;\n\n\t\t\tif (!dontStart)\n\t\t\t\tctx.beginPath();\n\n\t\t\tif (hasFill || hasStroke && !dashLength || dontPaint) {\n\t\t\t\tdrawSegments(ctx, this, strokeMatrix);\n\t\t\t\tif (this._closed)\n\t\t\t\t\tctx.closePath();\n\t\t\t}\n\n\t\t\tfunction getOffset(i) {\n\t\t\t\treturn dashArray[((i % dashLength) + dashLength) % dashLength];\n\t\t\t}\n\n\t\t\tif (!dontPaint && (hasFill || hasStroke)) {\n\t\t\t\tthis._setStyles(ctx, param, viewMatrix);\n\t\t\t\tif (hasFill) {\n\t\t\t\t\tctx.fill(style.getFillRule());\n\t\t\t\t\tctx.shadowColor = 'rgba(0,0,0,0)';\n\t\t\t\t}\n\t\t\t\tif (hasStroke) {\n\t\t\t\t\tif (dashLength) {\n\t\t\t\t\t\tif (!dontStart)\n\t\t\t\t\t\t\tctx.beginPath();\n\t\t\t\t\t\tvar flattener = new PathFlattener(this, 0.25, 32, false,\n\t\t\t\t\t\t\t\tstrokeMatrix),\n\t\t\t\t\t\t\tlength = flattener.length,\n\t\t\t\t\t\t\tfrom = -style.getDashOffset(), to,\n\t\t\t\t\t\t\ti = 0;\n\t\t\t\t\t\twhile (from > 0) {\n\t\t\t\t\t\t\tfrom -= getOffset(i--) + getOffset(i--);\n\t\t\t\t\t\t}\n\t\t\t\t\t\twhile (from < length) {\n\t\t\t\t\t\t\tto = from + getOffset(i++);\n\t\t\t\t\t\t\tif (from > 0 || to > 0)\n\t\t\t\t\t\t\t\tflattener.drawPart(ctx,\n\t\t\t\t\t\t\t\t\t\tMath.max(from, 0), Math.max(to, 0));\n\t\t\t\t\t\t\tfrom = to + getOffset(i++);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tctx.stroke();\n\t\t\t\t}\n\t\t\t}\n\t\t},\n\n\t\t_drawSelected: function(ctx, matrix) {\n\t\t\tctx.beginPath();\n\t\t\tdrawSegments(ctx, this, matrix);\n\t\t\tctx.stroke();\n\t\t\tdrawHandles(ctx, this._segments, matrix, paper.settings.handleSize);\n\t\t}\n\t};\n},\nnew function() {\n\tfunction getCurrentSegment(that) {\n\t\tvar segments = that._segments;\n\t\tif (!segments.length)\n\t\t\tthrow new Error('Use a moveTo() command first');\n\t\treturn segments[segments.length - 1];\n\t}\n\n\treturn {\n\t\tmoveTo: function() {\n\t\t\tvar segments = this._segments;\n\t\t\tif (segments.length === 1)\n\t\t\t\tthis.removeSegment(0);\n\t\t\tif (!segments.length)\n\t\t\t\tthis._add([ new Segment(Point.read(arguments)) ]);\n\t\t},\n\n\t\tmoveBy: function() {\n\t\t\tthrow new Error('moveBy() is unsupported on Path items.');\n\t\t},\n\n\t\tlineTo: function() {\n\t\t\tthis._add([ new Segment(Point.read(arguments)) ]);\n\t\t},\n\n\t\tcubicCurveTo: function() {\n\t\t\tvar args = arguments,\n\t\t\t\thandle1 = Point.read(args),\n\t\t\t\thandle2 = Point.read(args),\n\t\t\t\tto = Point.read(args),\n\t\t\t\tcurrent = getCurrentSegment(this);\n\t\t\tcurrent.setHandleOut(handle1.subtract(current._point));\n\t\t\tthis._add([ new Segment(to, handle2.subtract(to)) ]);\n\t\t},\n\n\t\tquadraticCurveTo: function() {\n\t\t\tvar args = arguments,\n\t\t\t\thandle = Point.read(args),\n\t\t\t\tto = Point.read(args),\n\t\t\t\tcurrent = getCurrentSegment(this)._point;\n\t\t\tthis.cubicCurveTo(\n\t\t\t\thandle.add(current.subtract(handle).multiply(1 / 3)),\n\t\t\t\thandle.add(to.subtract(handle).multiply(1 / 3)),\n\t\t\t\tto\n\t\t\t);\n\t\t},\n\n\t\tcurveTo: function() {\n\t\t\tvar args = arguments,\n\t\t\t\tthrough = Point.read(args),\n\t\t\t\tto = Point.read(args),\n\t\t\t\tt = Base.pick(Base.read(args), 0.5),\n\t\t\t\tt1 = 1 - t,\n\t\t\t\tcurrent = getCurrentSegment(this)._point,\n\t\t\t\thandle = through.subtract(current.multiply(t1 * t1))\n\t\t\t\t\t.subtract(to.multiply(t * t)).divide(2 * t * t1);\n\t\t\tif (handle.isNaN())\n\t\t\t\tthrow new Error(\n\t\t\t\t\t'Cannot put a curve through points with parameter = ' + t);\n\t\t\tthis.quadraticCurveTo(handle, to);\n\t\t},\n\n\t\tarcTo: function() {\n\t\t\tvar args = arguments,\n\t\t\t\tabs = Math.abs,\n\t\t\t\tsqrt = Math.sqrt,\n\t\t\t\tcurrent = getCurrentSegment(this),\n\t\t\t\tfrom = current._point,\n\t\t\t\tto = Point.read(args),\n\t\t\t\tthrough,\n\t\t\t\tpeek = Base.peek(args),\n\t\t\t\tclockwise = Base.pick(peek, true),\n\t\t\t\tcenter, extent, vector, matrix;\n\t\t\tif (typeof clockwise === 'boolean') {\n\t\t\t\tvar middle = from.add(to).divide(2),\n\t\t\t\tthrough = middle.add(middle.subtract(from).rotate(\n\t\t\t\t\t\tclockwise ? -90 : 90));\n\t\t\t} else if (Base.remain(args) <= 2) {\n\t\t\t\tthrough = to;\n\t\t\t\tto = Point.read(args);\n\t\t\t} else if (!from.equals(to)) {\n\t\t\t\tvar radius = Size.read(args),\n\t\t\t\t\tisZero = Numerical.isZero;\n\t\t\t\tif (isZero(radius.width) || isZero(radius.height))\n\t\t\t\t\treturn this.lineTo(to);\n\t\t\t\tvar rotation = Base.read(args),\n\t\t\t\t\tclockwise = !!Base.read(args),\n\t\t\t\t\tlarge = !!Base.read(args),\n\t\t\t\t\tmiddle = from.add(to).divide(2),\n\t\t\t\t\tpt = from.subtract(middle).rotate(-rotation),\n\t\t\t\t\tx = pt.x,\n\t\t\t\t\ty = pt.y,\n\t\t\t\t\trx = abs(radius.width),\n\t\t\t\t\try = abs(radius.height),\n\t\t\t\t\trxSq = rx * rx,\n\t\t\t\t\trySq = ry * ry,\n\t\t\t\t\txSq = x * x,\n\t\t\t\t\tySq = y * y;\n\t\t\t\tvar factor = sqrt(xSq / rxSq + ySq / rySq);\n\t\t\t\tif (factor > 1) {\n\t\t\t\t\trx *= factor;\n\t\t\t\t\try *= factor;\n\t\t\t\t\trxSq = rx * rx;\n\t\t\t\t\trySq = ry * ry;\n\t\t\t\t}\n\t\t\t\tfactor = (rxSq * rySq - rxSq * ySq - rySq * xSq) /\n\t\t\t\t\t\t(rxSq * ySq + rySq * xSq);\n\t\t\t\tif (abs(factor) < 1e-12)\n\t\t\t\t\tfactor = 0;\n\t\t\t\tif (factor < 0)\n\t\t\t\t\tthrow new Error(\n\t\t\t\t\t\t\t'Cannot create an arc with the given arguments');\n\t\t\t\tcenter = new Point(rx * y / ry, -ry * x / rx)\n\t\t\t\t\t\t.multiply((large === clockwise ? -1 : 1) * sqrt(factor))\n\t\t\t\t\t\t.rotate(rotation).add(middle);\n\t\t\t\tmatrix = new Matrix().translate(center).rotate(rotation)\n\t\t\t\t\t\t.scale(rx, ry);\n\t\t\t\tvector = matrix._inverseTransform(from);\n\t\t\t\textent = vector.getDirectedAngle(matrix._inverseTransform(to));\n\t\t\t\tif (!clockwise && extent > 0)\n\t\t\t\t\textent -= 360;\n\t\t\t\telse if (clockwise && extent < 0)\n\t\t\t\t\textent += 360;\n\t\t\t}\n\t\t\tif (through) {\n\t\t\t\tvar l1 = new Line(from.add(through).divide(2),\n\t\t\t\t\t\t\tthrough.subtract(from).rotate(90), true),\n\t\t\t\t\tl2 = new Line(through.add(to).divide(2),\n\t\t\t\t\t\t\tto.subtract(through).rotate(90), true),\n\t\t\t\t\tline = new Line(from, to),\n\t\t\t\t\tthroughSide = line.getSide(through);\n\t\t\t\tcenter = l1.intersect(l2, true);\n\t\t\t\tif (!center) {\n\t\t\t\t\tif (!throughSide)\n\t\t\t\t\t\treturn this.lineTo(to);\n\t\t\t\t\tthrow new Error(\n\t\t\t\t\t\t\t'Cannot create an arc with the given arguments');\n\t\t\t\t}\n\t\t\t\tvector = from.subtract(center);\n\t\t\t\textent = vector.getDirectedAngle(to.subtract(center));\n\t\t\t\tvar centerSide = line.getSide(center, true);\n\t\t\t\tif (centerSide === 0) {\n\t\t\t\t\textent = throughSide * abs(extent);\n\t\t\t\t} else if (throughSide === centerSide) {\n\t\t\t\t\textent += extent < 0 ? 360 : -360;\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (extent) {\n\t\t\t\tvar epsilon = 1e-7,\n\t\t\t\t\text = abs(extent),\n\t\t\t\t\tcount = ext >= 360 ? 4 : Math.ceil((ext - epsilon) / 90),\n\t\t\t\t\tinc = extent / count,\n\t\t\t\t\thalf = inc * Math.PI / 360,\n\t\t\t\t\tz = 4 / 3 * Math.sin(half) / (1 + Math.cos(half)),\n\t\t\t\t\tsegments = [];\n\t\t\t\tfor (var i = 0; i <= count; i++) {\n\t\t\t\t\tvar pt = to,\n\t\t\t\t\t\tout = null;\n\t\t\t\t\tif (i < count) {\n\t\t\t\t\t\tout = vector.rotate(90).multiply(z);\n\t\t\t\t\t\tif (matrix) {\n\t\t\t\t\t\t\tpt = matrix._transformPoint(vector);\n\t\t\t\t\t\t\tout = matrix._transformPoint(vector.add(out))\n\t\t\t\t\t\t\t\t\t.subtract(pt);\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tpt = center.add(vector);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tif (!i) {\n\t\t\t\t\t\tcurrent.setHandleOut(out);\n\t\t\t\t\t} else {\n\t\t\t\t\t\tvar _in = vector.rotate(-90).multiply(z);\n\t\t\t\t\t\tif (matrix) {\n\t\t\t\t\t\t\t_in = matrix._transformPoint(vector.add(_in))\n\t\t\t\t\t\t\t\t\t.subtract(pt);\n\t\t\t\t\t\t}\n\t\t\t\t\t\tsegments.push(new Segment(pt, _in, out));\n\t\t\t\t\t}\n\t\t\t\t\tvector = vector.rotate(inc);\n\t\t\t\t}\n\t\t\t\tthis._add(segments);\n\t\t\t}\n\t\t},\n\n\t\tlineBy: function() {\n\t\t\tvar to = Point.read(arguments),\n\t\t\t\tcurrent = getCurrentSegment(this)._point;\n\t\t\tthis.lineTo(current.add(to));\n\t\t},\n\n\t\tcurveBy: function() {\n\t\t\tvar args = arguments,\n\t\t\t\tthrough = Point.read(args),\n\t\t\t\tto = Point.read(args),\n\t\t\t\tparameter = Base.read(args),\n\t\t\t\tcurrent = getCurrentSegment(this)._point;\n\t\t\tthis.curveTo(current.add(through), current.add(to), parameter);\n\t\t},\n\n\t\tcubicCurveBy: function() {\n\t\t\tvar args = arguments,\n\t\t\t\thandle1 = Point.read(args),\n\t\t\t\thandle2 = Point.read(args),\n\t\t\t\tto = Point.read(args),\n\t\t\t\tcurrent = getCurrentSegment(this)._point;\n\t\t\tthis.cubicCurveTo(current.add(handle1), current.add(handle2),\n\t\t\t\t\tcurrent.add(to));\n\t\t},\n\n\t\tquadraticCurveBy: function() {\n\t\t\tvar args = arguments,\n\t\t\t\thandle = Point.read(args),\n\t\t\t\tto = Point.read(args),\n\t\t\t\tcurrent = getCurrentSegment(this)._point;\n\t\t\tthis.quadraticCurveTo(current.add(handle), current.add(to));\n\t\t},\n\n\t\tarcBy: function() {\n\t\t\tvar args = arguments,\n\t\t\t\tcurrent = getCurrentSegment(this)._point,\n\t\t\t\tpoint = current.add(Point.read(args)),\n\t\t\t\tclockwise = Base.pick(Base.peek(args), true);\n\t\t\tif (typeof clockwise === 'boolean') {\n\t\t\t\tthis.arcTo(point, clockwise);\n\t\t\t} else {\n\t\t\t\tthis.arcTo(point, current.add(Point.read(args)));\n\t\t\t}\n\t\t},\n\n\t\tclosePath: function(tolerance) {\n\t\t\tthis.setClosed(true);\n\t\t\tthis.join(this, tolerance);\n\t\t}\n\t};\n}, {\n\n\t_getBounds: function(matrix, options) {\n\t\tvar method = options.handle\n\t\t\t\t? 'getHandleBounds'\n\t\t\t\t: options.stroke\n\t\t\t\t? 'getStrokeBounds'\n\t\t\t\t: 'getBounds';\n\t\treturn Path[method](this._segments, this._closed, this, matrix, options);\n\t},\n\nstatics: {\n\tgetBounds: function(segments, closed, path, matrix, options, strokePadding) {\n\t\tvar first = segments[0];\n\t\tif (!first)\n\t\t\treturn new Rectangle();\n\t\tvar coords = new Array(6),\n\t\t\tprevCoords = first._transformCoordinates(matrix, new Array(6)),\n\t\t\tmin = prevCoords.slice(0, 2),\n\t\t\tmax = min.slice(),\n\t\t\troots = new Array(2);\n\n\t\tfunction processSegment(segment) {\n\t\t\tsegment._transformCoordinates(matrix, coords);\n\t\t\tfor (var i = 0; i < 2; i++) {\n\t\t\t\tCurve._addBounds(\n\t\t\t\t\tprevCoords[i],\n\t\t\t\t\tprevCoords[i + 4],\n\t\t\t\t\tcoords[i + 2],\n\t\t\t\t\tcoords[i],\n\t\t\t\t\ti, strokePadding ? strokePadding[i] : 0, min, max, roots);\n\t\t\t}\n\t\t\tvar tmp = prevCoords;\n\t\t\tprevCoords = coords;\n\t\t\tcoords = tmp;\n\t\t}\n\n\t\tfor (var i = 1, l = segments.length; i < l; i++)\n\t\t\tprocessSegment(segments[i]);\n\t\tif (closed)\n\t\t\tprocessSegment(first);\n\t\treturn new Rectangle(min[0], min[1], max[0] - min[0], max[1] - min[1]);\n\t},\n\n\tgetStrokeBounds: function(segments, closed, path, matrix, options) {\n\t\tvar style = path.getStyle(),\n\t\t\tstroke = style.hasStroke(),\n\t\t\tstrokeWidth = style.getStrokeWidth(),\n\t\t\tstrokeMatrix = stroke && path._getStrokeMatrix(matrix, options),\n\t\t\tstrokePadding = stroke && Path._getStrokePadding(strokeWidth,\n\t\t\t\tstrokeMatrix),\n\t\t\tbounds = Path.getBounds(segments, closed, path, matrix, options,\n\t\t\t\tstrokePadding);\n\t\tif (!stroke)\n\t\t\treturn bounds;\n\t\tvar strokeRadius = strokeWidth / 2,\n\t\t\tjoin = style.getStrokeJoin(),\n\t\t\tcap = style.getStrokeCap(),\n\t\t\tmiterLimit = style.getMiterLimit(),\n\t\t\tjoinBounds = new Rectangle(new Size(strokePadding));\n\n\t\tfunction addPoint(point) {\n\t\t\tbounds = bounds.include(point);\n\t\t}\n\n\t\tfunction addRound(segment) {\n\t\t\tbounds = bounds.unite(\n\t\t\t\t\tjoinBounds.setCenter(segment._point.transform(matrix)));\n\t\t}\n\n\t\tfunction addJoin(segment, join) {\n\t\t\tif (join === 'round' || segment.isSmooth()) {\n\t\t\t\taddRound(segment);\n\t\t\t} else {\n\t\t\t\tPath._addBevelJoin(segment, join, strokeRadius, miterLimit,\n\t\t\t\t\t\tmatrix, strokeMatrix, addPoint);\n\t\t\t}\n\t\t}\n\n\t\tfunction addCap(segment, cap) {\n\t\t\tif (cap === 'round') {\n\t\t\t\taddRound(segment);\n\t\t\t} else {\n\t\t\t\tPath._addSquareCap(segment, cap, strokeRadius, matrix,\n\t\t\t\t\t\tstrokeMatrix, addPoint);\n\t\t\t}\n\t\t}\n\n\t\tvar length = segments.length - (closed ? 0 : 1);\n\t\tif (length > 0) {\n\t\t\tfor (var i = 1; i < length; i++) {\n\t\t\t\taddJoin(segments[i], join);\n\t\t\t}\n\t\t\tif (closed) {\n\t\t\t\taddJoin(segments[0], join);\n\t\t\t} else {\n\t\t\t\taddCap(segments[0], cap);\n\t\t\t\taddCap(segments[segments.length - 1], cap);\n\t\t\t}\n\t\t}\n\t\treturn bounds;\n\t},\n\n\t_getStrokePadding: function(radius, matrix) {\n\t\tif (!matrix)\n\t\t\treturn [radius, radius];\n\t\tvar hor = new Point(radius, 0).transform(matrix),\n\t\t\tver = new Point(0, radius).transform(matrix),\n\t\t\tphi = hor.getAngleInRadians(),\n\t\t\ta = hor.getLength(),\n\t\t\tb = ver.getLength();\n\t\tvar sin = Math.sin(phi),\n\t\t\tcos = Math.cos(phi),\n\t\t\ttan = Math.tan(phi),\n\t\t\ttx = Math.atan2(b * tan, a),\n\t\t\tty = Math.atan2(b, tan * a);\n\t\treturn [Math.abs(a * Math.cos(tx) * cos + b * Math.sin(tx) * sin),\n\t\t\t\tMath.abs(b * Math.sin(ty) * cos + a * Math.cos(ty) * sin)];\n\t},\n\n\t_addBevelJoin: function(segment, join, radius, miterLimit, matrix,\n\t\t\tstrokeMatrix, addPoint, isArea) {\n\t\tvar curve2 = segment.getCurve(),\n\t\t\tcurve1 = curve2.getPrevious(),\n\t\t\tpoint = curve2.getPoint1().transform(matrix),\n\t\t\tnormal1 = curve1.getNormalAtTime(1).multiply(radius)\n\t\t\t\t.transform(strokeMatrix),\n\t\t\tnormal2 = curve2.getNormalAtTime(0).multiply(radius)\n\t\t\t\t.transform(strokeMatrix),\n\t\t\t\tangle = normal1.getDirectedAngle(normal2);\n\t\tif (angle < 0 || angle >= 180) {\n\t\t\tnormal1 = normal1.negate();\n\t\t\tnormal2 = normal2.negate();\n\t\t}\n\t\tif (isArea)\n\t\t\taddPoint(point);\n\t\taddPoint(point.add(normal1));\n\t\tif (join === 'miter') {\n\t\t\tvar corner = new Line(point.add(normal1),\n\t\t\t\t\tnew Point(-normal1.y, normal1.x), true\n\t\t\t\t).intersect(new Line(point.add(normal2),\n\t\t\t\t\tnew Point(-normal2.y, normal2.x), true\n\t\t\t\t), true);\n\t\t\tif (corner && point.getDistance(corner) <= miterLimit * radius) {\n\t\t\t\taddPoint(corner);\n\t\t\t}\n\t\t}\n\t\taddPoint(point.add(normal2));\n\t},\n\n\t_addSquareCap: function(segment, cap, radius, matrix, strokeMatrix,\n\t\t\taddPoint, isArea) {\n\t\tvar point = segment._point.transform(matrix),\n\t\t\tloc = segment.getLocation(),\n\t\t\tnormal = loc.getNormal()\n\t\t\t\t\t.multiply(loc.getTime() === 0 ? radius : -radius)\n\t\t\t\t\t.transform(strokeMatrix);\n\t\tif (cap === 'square') {\n\t\t\tif (isArea) {\n\t\t\t\taddPoint(point.subtract(normal));\n\t\t\t\taddPoint(point.add(normal));\n\t\t\t}\n\t\t\tpoint = point.add(normal.rotate(-90));\n\t\t}\n\t\taddPoint(point.add(normal));\n\t\taddPoint(point.subtract(normal));\n\t},\n\n\tgetHandleBounds: function(segments, closed, path, matrix, options) {\n\t\tvar style = path.getStyle(),\n\t\t\tstroke = options.stroke && style.hasStroke(),\n\t\t\tstrokePadding,\n\t\t\tjoinPadding;\n\t\tif (stroke) {\n\t\t\tvar strokeMatrix = path._getStrokeMatrix(matrix, options),\n\t\t\t\tstrokeRadius = style.getStrokeWidth() / 2,\n\t\t\t\tjoinRadius = strokeRadius;\n\t\t\tif (style.getStrokeJoin() === 'miter')\n\t\t\t\tjoinRadius = strokeRadius * style.getMiterLimit();\n\t\t\tif (style.getStrokeCap() === 'square')\n\t\t\t\tjoinRadius = Math.max(joinRadius, strokeRadius * Math.SQRT2);\n\t\t\tstrokePadding = Path._getStrokePadding(strokeRadius, strokeMatrix);\n\t\t\tjoinPadding = Path._getStrokePadding(joinRadius, strokeMatrix);\n\t\t}\n\t\tvar coords = new Array(6),\n\t\t\tx1 = Infinity,\n\t\t\tx2 = -x1,\n\t\t\ty1 = x1,\n\t\t\ty2 = x2;\n\t\tfor (var i = 0, l = segments.length; i < l; i++) {\n\t\t\tvar segment = segments[i];\n\t\t\tsegment._transformCoordinates(matrix, coords);\n\t\t\tfor (var j = 0; j < 6; j += 2) {\n\t\t\t\tvar padding = !j ? joinPadding : strokePadding,\n\t\t\t\t\tpaddingX = padding ? padding[0] : 0,\n\t\t\t\t\tpaddingY = padding ? padding[1] : 0,\n\t\t\t\t\tx = coords[j],\n\t\t\t\t\ty = coords[j + 1],\n\t\t\t\t\txn = x - paddingX,\n\t\t\t\t\txx = x + paddingX,\n\t\t\t\t\tyn = y - paddingY,\n\t\t\t\t\tyx = y + paddingY;\n\t\t\t\tif (xn < x1) x1 = xn;\n\t\t\t\tif (xx > x2) x2 = xx;\n\t\t\t\tif (yn < y1) y1 = yn;\n\t\t\t\tif (yx > y2) y2 = yx;\n\t\t\t}\n\t\t}\n\t\treturn new Rectangle(x1, y1, x2 - x1, y2 - y1);\n\t}\n}});\n\nPath.inject({ statics: new function() {\n\n\tvar kappa = 0.5522847498307936,\n\t\tellipseSegments = [\n\t\t\tnew Segment([-1, 0], [0, kappa ], [0, -kappa]),\n\t\t\tnew Segment([0, -1], [-kappa, 0], [kappa, 0 ]),\n\t\t\tnew Segment([1, 0], [0, -kappa], [0, kappa ]),\n\t\t\tnew Segment([0, 1], [kappa, 0 ], [-kappa, 0])\n\t\t];\n\n\tfunction createPath(segments, closed, args) {\n\t\tvar props = Base.getNamed(args),\n\t\t\tpath = new Path(props && props.insert == false && Item.NO_INSERT);\n\t\tpath._add(segments);\n\t\tpath._closed = closed;\n\t\treturn path.set(props, { insert: true });\n\t}\n\n\tfunction createEllipse(center, radius, args) {\n\t\tvar segments = new Array(4);\n\t\tfor (var i = 0; i < 4; i++) {\n\t\t\tvar segment = ellipseSegments[i];\n\t\t\tsegments[i] = new Segment(\n\t\t\t\tsegment._point.multiply(radius).add(center),\n\t\t\t\tsegment._handleIn.multiply(radius),\n\t\t\t\tsegment._handleOut.multiply(radius)\n\t\t\t);\n\t\t}\n\t\treturn createPath(segments, true, args);\n\t}\n\n\treturn {\n\t\tLine: function() {\n\t\t\tvar args = arguments;\n\t\t\treturn createPath([\n\t\t\t\tnew Segment(Point.readNamed(args, 'from')),\n\t\t\t\tnew Segment(Point.readNamed(args, 'to'))\n\t\t\t], false, args);\n\t\t},\n\n\t\tCircle: function() {\n\t\t\tvar args = arguments,\n\t\t\t\tcenter = Point.readNamed(args, 'center'),\n\t\t\t\tradius = Base.readNamed(args, 'radius');\n\t\t\treturn createEllipse(center, new Size(radius), args);\n\t\t},\n\n\t\tRectangle: function() {\n\t\t\tvar args = arguments,\n\t\t\t\trect = Rectangle.readNamed(args, 'rectangle'),\n\t\t\t\tradius = Size.readNamed(args, 'radius', 0,\n\t\t\t\t\t\t{ readNull: true }),\n\t\t\t\tbl = rect.getBottomLeft(true),\n\t\t\t\ttl = rect.getTopLeft(true),\n\t\t\t\ttr = rect.getTopRight(true),\n\t\t\t\tbr = rect.getBottomRight(true),\n\t\t\t\tsegments;\n\t\t\tif (!radius || radius.isZero()) {\n\t\t\t\tsegments = [\n\t\t\t\t\tnew Segment(bl),\n\t\t\t\t\tnew Segment(tl),\n\t\t\t\t\tnew Segment(tr),\n\t\t\t\t\tnew Segment(br)\n\t\t\t\t];\n\t\t\t} else {\n\t\t\t\tradius = Size.min(radius, rect.getSize(true).divide(2));\n\t\t\t\tvar rx = radius.width,\n\t\t\t\t\try = radius.height,\n\t\t\t\t\thx = rx * kappa,\n\t\t\t\t\thy = ry * kappa;\n\t\t\t\tsegments = [\n\t\t\t\t\tnew Segment(bl.add(rx, 0), null, [-hx, 0]),\n\t\t\t\t\tnew Segment(bl.subtract(0, ry), [0, hy]),\n\t\t\t\t\tnew Segment(tl.add(0, ry), null, [0, -hy]),\n\t\t\t\t\tnew Segment(tl.add(rx, 0), [-hx, 0], null),\n\t\t\t\t\tnew Segment(tr.subtract(rx, 0), null, [hx, 0]),\n\t\t\t\t\tnew Segment(tr.add(0, ry), [0, -hy], null),\n\t\t\t\t\tnew Segment(br.subtract(0, ry), null, [0, hy]),\n\t\t\t\t\tnew Segment(br.subtract(rx, 0), [hx, 0])\n\t\t\t\t];\n\t\t\t}\n\t\t\treturn createPath(segments, true, args);\n\t\t},\n\n\t\tRoundRectangle: '#Rectangle',\n\n\t\tEllipse: function() {\n\t\t\tvar args = arguments,\n\t\t\t\tellipse = Shape._readEllipse(args);\n\t\t\treturn createEllipse(ellipse.center, ellipse.radius, args);\n\t\t},\n\n\t\tOval: '#Ellipse',\n\n\t\tArc: function() {\n\t\t\tvar args = arguments,\n\t\t\t\tfrom = Point.readNamed(args, 'from'),\n\t\t\t\tthrough = Point.readNamed(args, 'through'),\n\t\t\t\tto = Point.readNamed(args, 'to'),\n\t\t\t\tprops = Base.getNamed(args),\n\t\t\t\tpath = new Path(props && props.insert == false\n\t\t\t\t\t\t&& Item.NO_INSERT);\n\t\t\tpath.moveTo(from);\n\t\t\tpath.arcTo(through, to);\n\t\t\treturn path.set(props);\n\t\t},\n\n\t\tRegularPolygon: function() {\n\t\t\tvar args = arguments,\n\t\t\t\tcenter = Point.readNamed(args, 'center'),\n\t\t\t\tsides = Base.readNamed(args, 'sides'),\n\t\t\t\tradius = Base.readNamed(args, 'radius'),\n\t\t\t\tstep = 360 / sides,\n\t\t\t\tthree = sides % 3 === 0,\n\t\t\t\tvector = new Point(0, three ? -radius : radius),\n\t\t\t\toffset = three ? -1 : 0.5,\n\t\t\t\tsegments = new Array(sides);\n\t\t\tfor (var i = 0; i < sides; i++)\n\t\t\t\tsegments[i] = new Segment(center.add(\n\t\t\t\t\tvector.rotate((i + offset) * step)));\n\t\t\treturn createPath(segments, true, args);\n\t\t},\n\n\t\tStar: function() {\n\t\t\tvar args = arguments,\n\t\t\t\tcenter = Point.readNamed(args, 'center'),\n\t\t\t\tpoints = Base.readNamed(args, 'points') * 2,\n\t\t\t\tradius1 = Base.readNamed(args, 'radius1'),\n\t\t\t\tradius2 = Base.readNamed(args, 'radius2'),\n\t\t\t\tstep = 360 / points,\n\t\t\t\tvector = new Point(0, -1),\n\t\t\t\tsegments = new Array(points);\n\t\t\tfor (var i = 0; i < points; i++)\n\t\t\t\tsegments[i] = new Segment(center.add(vector.rotate(step * i)\n\t\t\t\t\t\t.multiply(i % 2 ? radius2 : radius1)));\n\t\t\treturn createPath(segments, true, args);\n\t\t}\n\t};\n}});\n\nvar CompoundPath = PathItem.extend({\n\t_class: 'CompoundPath',\n\t_serializeFields: {\n\t\tchildren: []\n\t},\n\tbeans: true,\n\n\tinitialize: function CompoundPath(arg) {\n\t\tthis._children = [];\n\t\tthis._namedChildren = {};\n\t\tif (!this._initialize(arg)) {\n\t\t\tif (typeof arg === 'string') {\n\t\t\t\tthis.setPathData(arg);\n\t\t\t} else {\n\t\t\t\tthis.addChildren(Array.isArray(arg) ? arg : arguments);\n\t\t\t}\n\t\t}\n\t},\n\n\tinsertChildren: function insertChildren(index, items) {\n\t\tvar list = items,\n\t\t\tfirst = list[0];\n\t\tif (first && typeof first[0] === 'number')\n\t\t\tlist = [list];\n\t\tfor (var i = items.length - 1; i >= 0; i--) {\n\t\t\tvar item = list[i];\n\t\t\tif (list === items && !(item instanceof Path))\n\t\t\t\tlist = Base.slice(list);\n\t\t\tif (Array.isArray(item)) {\n\t\t\t\tlist[i] = new Path({ segments: item, insert: false });\n\t\t\t} else if (item instanceof CompoundPath) {\n\t\t\t\tlist.splice.apply(list, [i, 1].concat(item.removeChildren()));\n\t\t\t\titem.remove();\n\t\t\t}\n\t\t}\n\t\treturn insertChildren.base.call(this, index, list);\n\t},\n\n\treduce: function reduce(options) {\n\t\tvar children = this._children;\n\t\tfor (var i = children.length - 1; i >= 0; i--) {\n\t\t\tvar path = children[i].reduce(options);\n\t\t\tif (path.isEmpty())\n\t\t\t\tpath.remove();\n\t\t}\n\t\tif (!children.length) {\n\t\t\tvar path = new Path(Item.NO_INSERT);\n\t\t\tpath.copyAttributes(this);\n\t\t\tpath.insertAbove(this);\n\t\t\tthis.remove();\n\t\t\treturn path;\n\t\t}\n\t\treturn reduce.base.call(this);\n\t},\n\n\tisClosed: function() {\n\t\tvar children = this._children;\n\t\tfor (var i = 0, l = children.length; i < l; i++) {\n\t\t\tif (!children[i]._closed)\n\t\t\t\treturn false;\n\t\t}\n\t\treturn true;\n\t},\n\n\tsetClosed: function(closed) {\n\t\tvar children = this._children;\n\t\tfor (var i = 0, l = children.length; i < l; i++) {\n\t\t\tchildren[i].setClosed(closed);\n\t\t}\n\t},\n\n\tgetFirstSegment: function() {\n\t\tvar first = this.getFirstChild();\n\t\treturn first && first.getFirstSegment();\n\t},\n\n\tgetLastSegment: function() {\n\t\tvar last = this.getLastChild();\n\t\treturn last && last.getLastSegment();\n\t},\n\n\tgetCurves: function() {\n\t\tvar children = this._children,\n\t\t\tcurves = [];\n\t\tfor (var i = 0, l = children.length; i < l; i++) {\n\t\t\tBase.push(curves, children[i].getCurves());\n\t\t}\n\t\treturn curves;\n\t},\n\n\tgetFirstCurve: function() {\n\t\tvar first = this.getFirstChild();\n\t\treturn first && first.getFirstCurve();\n\t},\n\n\tgetLastCurve: function() {\n\t\tvar last = this.getLastChild();\n\t\treturn last && last.getLastCurve();\n\t},\n\n\tgetArea: function() {\n\t\tvar children = this._children,\n\t\t\tarea = 0;\n\t\tfor (var i = 0, l = children.length; i < l; i++)\n\t\t\tarea += children[i].getArea();\n\t\treturn area;\n\t},\n\n\tgetLength: function() {\n\t\tvar children = this._children,\n\t\t\tlength = 0;\n\t\tfor (var i = 0, l = children.length; i < l; i++)\n\t\t\tlength += children[i].getLength();\n\t\treturn length;\n\t},\n\n\tgetPathData: function(_matrix, _precision) {\n\t\tvar children = this._children,\n\t\t\tpaths = [];\n\t\tfor (var i = 0, l = children.length; i < l; i++) {\n\t\t\tvar child = children[i],\n\t\t\t\tmx = child._matrix;\n\t\t\tpaths.push(child.getPathData(_matrix && !mx.isIdentity()\n\t\t\t\t\t? _matrix.appended(mx) : _matrix, _precision));\n\t\t}\n\t\treturn paths.join('');\n\t},\n\n\t_hitTestChildren: function _hitTestChildren(point, options, viewMatrix) {\n\t\treturn _hitTestChildren.base.call(this, point,\n\t\t\t\toptions.class === Path || options.type === 'path' ? options\n\t\t\t\t\t: Base.set({}, options, { fill: false }),\n\t\t\t\tviewMatrix);\n\t},\n\n\t_draw: function(ctx, param, viewMatrix, strokeMatrix) {\n\t\tvar children = this._children;\n\t\tif (!children.length)\n\t\t\treturn;\n\n\t\tparam = param.extend({ dontStart: true, dontFinish: true });\n\t\tctx.beginPath();\n\t\tfor (var i = 0, l = children.length; i < l; i++)\n\t\t\tchildren[i].draw(ctx, param, strokeMatrix);\n\n\t\tif (!param.clip) {\n\t\t\tthis._setStyles(ctx, param, viewMatrix);\n\t\t\tvar style = this._style;\n\t\t\tif (style.hasFill()) {\n\t\t\t\tctx.fill(style.getFillRule());\n\t\t\t\tctx.shadowColor = 'rgba(0,0,0,0)';\n\t\t\t}\n\t\t\tif (style.hasStroke())\n\t\t\t\tctx.stroke();\n\t\t}\n\t},\n\n\t_drawSelected: function(ctx, matrix, selectionItems) {\n\t\tvar children = this._children;\n\t\tfor (var i = 0, l = children.length; i < l; i++) {\n\t\t\tvar child = children[i],\n\t\t\t\tmx = child._matrix;\n\t\t\tif (!selectionItems[child._id]) {\n\t\t\t\tchild._drawSelected(ctx, mx.isIdentity() ? matrix\n\t\t\t\t\t\t: matrix.appended(mx));\n\t\t\t}\n\t\t}\n\t}\n},\nnew function() {\n\tfunction getCurrentPath(that, check) {\n\t\tvar children = that._children;\n\t\tif (check && !children.length)\n\t\t\tthrow new Error('Use a moveTo() command first');\n\t\treturn children[children.length - 1];\n\t}\n\n\treturn Base.each(['lineTo', 'cubicCurveTo', 'quadraticCurveTo', 'curveTo',\n\t\t\t'arcTo', 'lineBy', 'cubicCurveBy', 'quadraticCurveBy', 'curveBy',\n\t\t\t'arcBy'],\n\t\tfunction(key) {\n\t\t\tthis[key] = function() {\n\t\t\t\tvar path = getCurrentPath(this, true);\n\t\t\t\tpath[key].apply(path, arguments);\n\t\t\t};\n\t\t}, {\n\t\t\tmoveTo: function() {\n\t\t\t\tvar current = getCurrentPath(this),\n\t\t\t\t\tpath = current && current.isEmpty() ? current\n\t\t\t\t\t\t\t: new Path(Item.NO_INSERT);\n\t\t\t\tif (path !== current)\n\t\t\t\t\tthis.addChild(path);\n\t\t\t\tpath.moveTo.apply(path, arguments);\n\t\t\t},\n\n\t\t\tmoveBy: function() {\n\t\t\t\tvar current = getCurrentPath(this, true),\n\t\t\t\t\tlast = current && current.getLastSegment(),\n\t\t\t\t\tpoint = Point.read(arguments);\n\t\t\t\tthis.moveTo(last ? point.add(last._point) : point);\n\t\t\t},\n\n\t\t\tclosePath: function(tolerance) {\n\t\t\t\tgetCurrentPath(this, true).closePath(tolerance);\n\t\t\t}\n\t\t}\n\t);\n}, Base.each(['reverse', 'flatten', 'simplify', 'smooth'], function(key) {\n\tthis[key] = function(param) {\n\t\tvar children = this._children,\n\t\t\tres;\n\t\tfor (var i = 0, l = children.length; i < l; i++) {\n\t\t\tres = children[i][key](param) || res;\n\t\t}\n\t\treturn res;\n\t};\n}, {}));\n\nPathItem.inject(new function() {\n\tvar min = Math.min,\n\t\tmax = Math.max,\n\t\tabs = Math.abs,\n\t\toperators = {\n\t\t\tunite: { '1': true, '2': true },\n\t\t\tintersect: { '2': true },\n\t\t\tsubtract: { '1': true },\n\t\t\texclude: { '1': true, '-1': true }\n\t\t};\n\n\tfunction getPaths(path) {\n\t\treturn path._children || [path];\n\t}\n\n\tfunction preparePath(path, resolve) {\n\t\tvar res = path\n\t\t\t.clone(false)\n\t\t\t.reduce({ simplify: true })\n\t\t\t.transform(null, true, true);\n\t\tif (resolve) {\n\t\t\tvar paths = getPaths(res);\n\t\t\tfor (var i = 0, l = paths.length; i < l; i++) {\n\t\t\t\tvar path = paths[i];\n\t\t\t\tif (!path._closed && !path.isEmpty()) {\n\t\t\t\t\tpath.closePath(1e-12);\n\t\t\t\t\tpath.getFirstSegment().setHandleIn(0, 0);\n\t\t\t\t\tpath.getLastSegment().setHandleOut(0, 0);\n\t\t\t\t}\n\t\t\t}\n\t\t\tres = res\n\t\t\t\t.resolveCrossings()\n\t\t\t\t.reorient(res.getFillRule() === 'nonzero', true);\n\t\t}\n\t\treturn res;\n\t}\n\n\tfunction createResult(paths, simplify, path1, path2, options) {\n\t\tvar result = new CompoundPath(Item.NO_INSERT);\n\t\tresult.addChildren(paths, true);\n\t\tresult = result.reduce({ simplify: simplify });\n\t\tif (!(options && options.insert == false)) {\n\t\t\tresult.insertAbove(path2 && path1.isSibling(path2)\n\t\t\t\t\t&& path1.getIndex() < path2.getIndex() ? path2 : path1);\n\t\t}\n\t\tresult.copyAttributes(path1, true);\n\t\treturn result;\n\t}\n\n\tfunction filterIntersection(inter) {\n\t\treturn inter.hasOverlap() || inter.isCrossing();\n\t}\n\n\tfunction traceBoolean(path1, path2, operation, options) {\n\t\tif (options && (options.trace == false || options.stroke) &&\n\t\t\t\t/^(subtract|intersect)$/.test(operation))\n\t\t\treturn splitBoolean(path1, path2, operation);\n\t\tvar _path1 = preparePath(path1, true),\n\t\t\t_path2 = path2 && path1 !== path2 && preparePath(path2, true),\n\t\t\toperator = operators[operation];\n\t\toperator[operation] = true;\n\t\tif (_path2 && (operator.subtract || operator.exclude)\n\t\t\t\t^ (_path2.isClockwise() ^ _path1.isClockwise()))\n\t\t\t_path2.reverse();\n\t\tvar crossings = divideLocations(CurveLocation.expand(\n\t\t\t\t_path1.getIntersections(_path2, filterIntersection))),\n\t\t\tpaths1 = getPaths(_path1),\n\t\t\tpaths2 = _path2 && getPaths(_path2),\n\t\t\tsegments = [],\n\t\t\tcurves = [],\n\t\t\tpaths;\n\n\t\tfunction collectPaths(paths) {\n\t\t\tfor (var i = 0, l = paths.length; i < l; i++) {\n\t\t\t\tvar path = paths[i];\n\t\t\t\tBase.push(segments, path._segments);\n\t\t\t\tBase.push(curves, path.getCurves());\n\t\t\t\tpath._overlapsOnly = true;\n\t\t\t}\n\t\t}\n\n\t\tfunction getCurves(indices) {\n\t\t\tvar list = [];\n\t\t\tfor (var i = 0, l = indices && indices.length; i < l; i++) {\n\t\t\t\tlist.push(curves[indices[i]]);\n\t\t\t}\n\t\t\treturn list;\n\t\t}\n\n\t\tif (crossings.length) {\n\t\t\tcollectPaths(paths1);\n\t\t\tif (paths2)\n\t\t\t\tcollectPaths(paths2);\n\n\t\t\tvar curvesValues = new Array(curves.length);\n\t\t\tfor (var i = 0, l = curves.length; i < l; i++) {\n\t\t\t\tcurvesValues[i] = curves[i].getValues();\n\t\t\t}\n\t\t\tvar curveCollisions = CollisionDetection.findCurveBoundsCollisions(\n\t\t\t\t\tcurvesValues, curvesValues, 0, true);\n\t\t\tvar curveCollisionsMap = {};\n\t\t\tfor (var i = 0; i < curves.length; i++) {\n\t\t\t\tvar curve = curves[i],\n\t\t\t\t\tid = curve._path._id,\n\t\t\t\t\tmap = curveCollisionsMap[id] = curveCollisionsMap[id] || {};\n\t\t\t\tmap[curve.getIndex()] = {\n\t\t\t\t\thor: getCurves(curveCollisions[i].hor),\n\t\t\t\t\tver: getCurves(curveCollisions[i].ver)\n\t\t\t\t};\n\t\t\t}\n\n\t\t\tfor (var i = 0, l = crossings.length; i < l; i++) {\n\t\t\t\tpropagateWinding(crossings[i]._segment, _path1, _path2,\n\t\t\t\t\t\tcurveCollisionsMap, operator);\n\t\t\t}\n\t\t\tfor (var i = 0, l = segments.length; i < l; i++) {\n\t\t\t\tvar segment = segments[i],\n\t\t\t\t\tinter = segment._intersection;\n\t\t\t\tif (!segment._winding) {\n\t\t\t\t\tpropagateWinding(segment, _path1, _path2,\n\t\t\t\t\t\t\tcurveCollisionsMap, operator);\n\t\t\t\t}\n\t\t\t\tif (!(inter && inter._overlap))\n\t\t\t\t\tsegment._path._overlapsOnly = false;\n\t\t\t}\n\t\t\tpaths = tracePaths(segments, operator);\n\t\t} else {\n\t\t\tpaths = reorientPaths(\n\t\t\t\t\tpaths2 ? paths1.concat(paths2) : paths1.slice(),\n\t\t\t\t\tfunction(w) {\n\t\t\t\t\t\treturn !!operator[w];\n\t\t\t\t\t});\n\t\t}\n\t\treturn createResult(paths, true, path1, path2, options);\n\t}\n\n\tfunction splitBoolean(path1, path2, operation) {\n\t\tvar _path1 = preparePath(path1),\n\t\t\t_path2 = preparePath(path2),\n\t\t\tcrossings = _path1.getIntersections(_path2, filterIntersection),\n\t\t\tsubtract = operation === 'subtract',\n\t\t\tdivide = operation === 'divide',\n\t\t\tadded = {},\n\t\t\tpaths = [];\n\n\t\tfunction addPath(path) {\n\t\t\tif (!added[path._id] && (divide ||\n\t\t\t\t\t_path2.contains(path.getPointAt(path.getLength() / 2))\n\t\t\t\t\t\t^ subtract)) {\n\t\t\t\tpaths.unshift(path);\n\t\t\t\treturn added[path._id] = true;\n\t\t\t}\n\t\t}\n\n\t\tfor (var i = crossings.length - 1; i >= 0; i--) {\n\t\t\tvar path = crossings[i].split();\n\t\t\tif (path) {\n\t\t\t\tif (addPath(path))\n\t\t\t\t\tpath.getFirstSegment().setHandleIn(0, 0);\n\t\t\t\t_path1.getLastSegment().setHandleOut(0, 0);\n\t\t\t}\n\t\t}\n\t\taddPath(_path1);\n\t\treturn createResult(paths, false, path1, path2);\n\t}\n\n\tfunction linkIntersections(from, to) {\n\t\tvar prev = from;\n\t\twhile (prev) {\n\t\t\tif (prev === to)\n\t\t\t\treturn;\n\t\t\tprev = prev._previous;\n\t\t}\n\t\twhile (from._next && from._next !== to)\n\t\t\tfrom = from._next;\n\t\tif (!from._next) {\n\t\t\twhile (to._previous)\n\t\t\t\tto = to._previous;\n\t\t\tfrom._next = to;\n\t\t\tto._previous = from;\n\t\t}\n\t}\n\n\tfunction clearCurveHandles(curves) {\n\t\tfor (var i = curves.length - 1; i >= 0; i--)\n\t\t\tcurves[i].clearHandles();\n\t}\n\n\tfunction reorientPaths(paths, isInside, clockwise) {\n\t\tvar length = paths && paths.length;\n\t\tif (length) {\n\t\t\tvar lookup = Base.each(paths, function (path, i) {\n\t\t\t\t\tthis[path._id] = {\n\t\t\t\t\t\tcontainer: null,\n\t\t\t\t\t\twinding: path.isClockwise() ? 1 : -1,\n\t\t\t\t\t\tindex: i\n\t\t\t\t\t};\n\t\t\t\t}, {}),\n\t\t\t\tsorted = paths.slice().sort(function (a, b) {\n\t\t\t\t\treturn abs(b.getArea()) - abs(a.getArea());\n\t\t\t\t}),\n\t\t\t\tfirst = sorted[0];\n\t\t\tvar collisions = CollisionDetection.findItemBoundsCollisions(sorted,\n\t\t\t\t\tnull, Numerical.GEOMETRIC_EPSILON);\n\t\t\tif (clockwise == null)\n\t\t\t\tclockwise = first.isClockwise();\n\t\t\tfor (var i = 0; i < length; i++) {\n\t\t\t\tvar path1 = sorted[i],\n\t\t\t\t\tentry1 = lookup[path1._id],\n\t\t\t\t\tcontainerWinding = 0,\n\t\t\t\t\tindices = collisions[i];\n\t\t\t\tif (indices) {\n\t\t\t\t\tvar point = null;\n\t\t\t\t\tfor (var j = indices.length - 1; j >= 0; j--) {\n\t\t\t\t\t\tif (indices[j] < i) {\n\t\t\t\t\t\t\tpoint = point || path1.getInteriorPoint();\n\t\t\t\t\t\t\tvar path2 = sorted[indices[j]];\n\t\t\t\t\t\t\tif (path2.contains(point)) {\n\t\t\t\t\t\t\t\tvar entry2 = lookup[path2._id];\n\t\t\t\t\t\t\t\tcontainerWinding = entry2.winding;\n\t\t\t\t\t\t\t\tentry1.winding += containerWinding;\n\t\t\t\t\t\t\t\tentry1.container = entry2.exclude\n\t\t\t\t\t\t\t\t\t? entry2.container : path2;\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tif (isInside(entry1.winding) === isInside(containerWinding)) {\n\t\t\t\t\tentry1.exclude = true;\n\t\t\t\t\tpaths[entry1.index] = null;\n\t\t\t\t} else {\n\t\t\t\t\tvar container = entry1.container;\n\t\t\t\t\tpath1.setClockwise(\n\t\t\t\t\t\t\tcontainer ? !container.isClockwise() : clockwise);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn paths;\n\t}\n\n\tfunction divideLocations(locations, include, clearLater) {\n\t\tvar results = include && [],\n\t\t\ttMin = 1e-8,\n\t\t\ttMax = 1 - tMin,\n\t\t\tclearHandles = false,\n\t\t\tclearCurves = clearLater || [],\n\t\t\tclearLookup = clearLater && {},\n\t\t\trenormalizeLocs,\n\t\t\tprevCurve,\n\t\t\tprevTime;\n\n\t\tfunction getId(curve) {\n\t\t\treturn curve._path._id + '.' + curve._segment1._index;\n\t\t}\n\n\t\tfor (var i = (clearLater && clearLater.length) - 1; i >= 0; i--) {\n\t\t\tvar curve = clearLater[i];\n\t\t\tif (curve._path)\n\t\t\t\tclearLookup[getId(curve)] = true;\n\t\t}\n\n\t\tfor (var i = locations.length - 1; i >= 0; i--) {\n\t\t\tvar loc = locations[i],\n\t\t\t\ttime = loc._time,\n\t\t\t\torigTime = time,\n\t\t\t\texclude = include && !include(loc),\n\t\t\t\tcurve = loc._curve,\n\t\t\t\tsegment;\n\t\t\tif (curve) {\n\t\t\t\tif (curve !== prevCurve) {\n\t\t\t\t\tclearHandles = !curve.hasHandles()\n\t\t\t\t\t\t\t|| clearLookup && clearLookup[getId(curve)];\n\t\t\t\t\trenormalizeLocs = [];\n\t\t\t\t\tprevTime = null;\n\t\t\t\t\tprevCurve = curve;\n\t\t\t\t} else if (prevTime >= tMin) {\n\t\t\t\t\ttime /= prevTime;\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (exclude) {\n\t\t\t\tif (renormalizeLocs)\n\t\t\t\t\trenormalizeLocs.push(loc);\n\t\t\t\tcontinue;\n\t\t\t} else if (include) {\n\t\t\t\tresults.unshift(loc);\n\t\t\t}\n\t\t\tprevTime = origTime;\n\t\t\tif (time < tMin) {\n\t\t\t\tsegment = curve._segment1;\n\t\t\t} else if (time > tMax) {\n\t\t\t\tsegment = curve._segment2;\n\t\t\t} else {\n\t\t\t\tvar newCurve = curve.divideAtTime(time, true);\n\t\t\t\tif (clearHandles)\n\t\t\t\t\tclearCurves.push(curve, newCurve);\n\t\t\t\tsegment = newCurve._segment1;\n\t\t\t\tfor (var j = renormalizeLocs.length - 1; j >= 0; j--) {\n\t\t\t\t\tvar l = renormalizeLocs[j];\n\t\t\t\t\tl._time = (l._time - time) / (1 - time);\n\t\t\t\t}\n\t\t\t}\n\t\t\tloc._setSegment(segment);\n\t\t\tvar inter = segment._intersection,\n\t\t\t\tdest = loc._intersection;\n\t\t\tif (inter) {\n\t\t\t\tlinkIntersections(inter, dest);\n\t\t\t\tvar other = inter;\n\t\t\t\twhile (other) {\n\t\t\t\t\tlinkIntersections(other._intersection, inter);\n\t\t\t\t\tother = other._next;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tsegment._intersection = dest;\n\t\t\t}\n\t\t}\n\t\tif (!clearLater)\n\t\t\tclearCurveHandles(clearCurves);\n\t\treturn results || locations;\n\t}\n\n\tfunction getWinding(point, curves, dir, closed, dontFlip) {\n\t\tvar curvesList = Array.isArray(curves)\n\t\t\t? curves\n\t\t\t: curves[dir ? 'hor' : 'ver'];\n\t\tvar ia = dir ? 1 : 0,\n\t\t\tio = ia ^ 1,\n\t\t\tpv = [point.x, point.y],\n\t\t\tpa = pv[ia],\n\t\t\tpo = pv[io],\n\t\t\twindingEpsilon = 1e-9,\n\t\t\tqualityEpsilon = 1e-6,\n\t\t\tpaL = pa - windingEpsilon,\n\t\t\tpaR = pa + windingEpsilon,\n\t\t\twindingL = 0,\n\t\t\twindingR = 0,\n\t\t\tpathWindingL = 0,\n\t\t\tpathWindingR = 0,\n\t\t\tonPath = false,\n\t\t\tonAnyPath = false,\n\t\t\tquality = 1,\n\t\t\troots = [],\n\t\t\tvPrev,\n\t\t\tvClose;\n\n\t\tfunction addWinding(v) {\n\t\t\tvar o0 = v[io + 0],\n\t\t\t\to3 = v[io + 6];\n\t\t\tif (po < min(o0, o3) || po > max(o0, o3)) {\n\t\t\t\treturn;\n\t\t\t}\n\t\t\tvar a0 = v[ia + 0],\n\t\t\t\ta1 = v[ia + 2],\n\t\t\t\ta2 = v[ia + 4],\n\t\t\t\ta3 = v[ia + 6];\n\t\t\tif (o0 === o3) {\n\t\t\t\tif (a0 < paR && a3 > paL || a3 < paR && a0 > paL) {\n\t\t\t\t\tonPath = true;\n\t\t\t\t}\n\t\t\t\treturn;\n\t\t\t}\n\t\t\tvar t = po === o0 ? 0\n\t\t\t\t\t: po === o3 ? 1\n\t\t\t\t\t: paL > max(a0, a1, a2, a3) || paR < min(a0, a1, a2, a3)\n\t\t\t\t\t? 1\n\t\t\t\t\t: Curve.solveCubic(v, io, po, roots, 0, 1) > 0\n\t\t\t\t\t\t? roots[0]\n\t\t\t\t\t\t: 1,\n\t\t\t\ta = t === 0 ? a0\n\t\t\t\t\t: t === 1 ? a3\n\t\t\t\t\t: Curve.getPoint(v, t)[dir ? 'y' : 'x'],\n\t\t\t\twinding = o0 > o3 ? 1 : -1,\n\t\t\t\twindingPrev = vPrev[io] > vPrev[io + 6] ? 1 : -1,\n\t\t\t\ta3Prev = vPrev[ia + 6];\n\t\t\tif (po !== o0) {\n\t\t\t\tif (a < paL) {\n\t\t\t\t\tpathWindingL += winding;\n\t\t\t\t} else if (a > paR) {\n\t\t\t\t\tpathWindingR += winding;\n\t\t\t\t} else {\n\t\t\t\t\tonPath = true;\n\t\t\t\t}\n\t\t\t\tif (a > pa - qualityEpsilon && a < pa + qualityEpsilon)\n\t\t\t\t\tquality /= 2;\n\t\t\t} else {\n\t\t\t\tif (winding !== windingPrev) {\n\t\t\t\t\tif (a0 < paL) {\n\t\t\t\t\t\tpathWindingL += winding;\n\t\t\t\t\t} else if (a0 > paR) {\n\t\t\t\t\t\tpathWindingR += winding;\n\t\t\t\t\t}\n\t\t\t\t} else if (a0 != a3Prev) {\n\t\t\t\t\tif (a3Prev < paR && a > paR) {\n\t\t\t\t\t\tpathWindingR += winding;\n\t\t\t\t\t\tonPath = true;\n\t\t\t\t\t} else if (a3Prev > paL && a < paL) {\n\t\t\t\t\t\tpathWindingL += winding;\n\t\t\t\t\t\tonPath = true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tquality /= 4;\n\t\t\t}\n\t\t\tvPrev = v;\n\t\t\treturn !dontFlip && a > paL && a < paR\n\t\t\t\t\t&& Curve.getTangent(v, t)[dir ? 'x' : 'y'] === 0\n\t\t\t\t\t&& getWinding(point, curves, !dir, closed, true);\n\t\t}\n\n\t\tfunction handleCurve(v) {\n\t\t\tvar o0 = v[io + 0],\n\t\t\t\to1 = v[io + 2],\n\t\t\t\to2 = v[io + 4],\n\t\t\t\to3 = v[io + 6];\n\t\t\tif (po <= max(o0, o1, o2, o3) && po >= min(o0, o1, o2, o3)) {\n\t\t\t\tvar a0 = v[ia + 0],\n\t\t\t\t\ta1 = v[ia + 2],\n\t\t\t\t\ta2 = v[ia + 4],\n\t\t\t\t\ta3 = v[ia + 6],\n\t\t\t\t\tmonoCurves = paL > max(a0, a1, a2, a3) ||\n\t\t\t\t\t\t\t\t paR < min(a0, a1, a2, a3)\n\t\t\t\t\t\t\t? [v] : Curve.getMonoCurves(v, dir),\n\t\t\t\t\tres;\n\t\t\t\tfor (var i = 0, l = monoCurves.length; i < l; i++) {\n\t\t\t\t\tif (res = addWinding(monoCurves[i]))\n\t\t\t\t\t\treturn res;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tfor (var i = 0, l = curvesList.length; i < l; i++) {\n\t\t\tvar curve = curvesList[i],\n\t\t\t\tpath = curve._path,\n\t\t\t\tv = curve.getValues(),\n\t\t\t\tres;\n\t\t\tif (!i || curvesList[i - 1]._path !== path) {\n\t\t\t\tvPrev = null;\n\t\t\t\tif (!path._closed) {\n\t\t\t\t\tvClose = Curve.getValues(\n\t\t\t\t\t\t\tpath.getLastCurve().getSegment2(),\n\t\t\t\t\t\t\tcurve.getSegment1(),\n\t\t\t\t\t\t\tnull, !closed);\n\t\t\t\t\tif (vClose[io] !== vClose[io + 6]) {\n\t\t\t\t\t\tvPrev = vClose;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif (!vPrev) {\n\t\t\t\t\tvPrev = v;\n\t\t\t\t\tvar prev = path.getLastCurve();\n\t\t\t\t\twhile (prev && prev !== curve) {\n\t\t\t\t\t\tvar v2 = prev.getValues();\n\t\t\t\t\t\tif (v2[io] !== v2[io + 6]) {\n\t\t\t\t\t\t\tvPrev = v2;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tprev = prev.getPrevious();\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif (res = handleCurve(v))\n\t\t\t\treturn res;\n\n\t\t\tif (i + 1 === l || curvesList[i + 1]._path !== path) {\n\t\t\t\tif (vClose && (res = handleCurve(vClose)))\n\t\t\t\t\treturn res;\n\t\t\t\tif (onPath && !pathWindingL && !pathWindingR) {\n\t\t\t\t\tpathWindingL = pathWindingR = path.isClockwise(closed) ^ dir\n\t\t\t\t\t\t\t? 1 : -1;\n\t\t\t\t}\n\t\t\t\twindingL += pathWindingL;\n\t\t\t\twindingR += pathWindingR;\n\t\t\t\tpathWindingL = pathWindingR = 0;\n\t\t\t\tif (onPath) {\n\t\t\t\t\tonAnyPath = true;\n\t\t\t\t\tonPath = false;\n\t\t\t\t}\n\t\t\t\tvClose = null;\n\t\t\t}\n\t\t}\n\t\twindingL = abs(windingL);\n\t\twindingR = abs(windingR);\n\t\treturn {\n\t\t\twinding: max(windingL, windingR),\n\t\t\twindingL: windingL,\n\t\t\twindingR: windingR,\n\t\t\tquality: quality,\n\t\t\tonPath: onAnyPath\n\t\t};\n\t}\n\n\tfunction propagateWinding(segment, path1, path2, curveCollisionsMap,\n\t\t\toperator) {\n\t\tvar chain = [],\n\t\t\tstart = segment,\n\t\t\ttotalLength = 0,\n\t\t\twinding;\n\t\tdo {\n\t\t\tvar curve = segment.getCurve();\n\t\t\tif (curve) {\n\t\t\t\tvar length = curve.getLength();\n\t\t\t\tchain.push({ segment: segment, curve: curve, length: length });\n\t\t\t\ttotalLength += length;\n\t\t\t}\n\t\t\tsegment = segment.getNext();\n\t\t} while (segment && !segment._intersection && segment !== start);\n\t\tvar offsets = [0.5, 0.25, 0.75],\n\t\t\twinding = { winding: 0, quality: -1 },\n\t\t\ttMin = 1e-3,\n\t\t\ttMax = 1 - tMin;\n\t\tfor (var i = 0; i < offsets.length && winding.quality < 0.5; i++) {\n\t\t\tvar length = totalLength * offsets[i];\n\t\t\tfor (var j = 0, l = chain.length; j < l; j++) {\n\t\t\t\tvar entry = chain[j],\n\t\t\t\t\tcurveLength = entry.length;\n\t\t\t\tif (length <= curveLength) {\n\t\t\t\t\tvar curve = entry.curve,\n\t\t\t\t\t\tpath = curve._path,\n\t\t\t\t\t\tparent = path._parent,\n\t\t\t\t\t\toperand = parent instanceof CompoundPath ? parent : path,\n\t\t\t\t\t\tt = Numerical.clamp(curve.getTimeAt(length), tMin, tMax),\n\t\t\t\t\t\tpt = curve.getPointAtTime(t),\n\t\t\t\t\t\tdir = abs(curve.getTangentAtTime(t).y) < Math.SQRT1_2;\n\t\t\t\t\tvar wind = null;\n\t\t\t\t\tif (operator.subtract && path2) {\n\t\t\t\t\t\tvar otherPath = operand === path1 ? path2 : path1,\n\t\t\t\t\t\t\tpathWinding = otherPath._getWinding(pt, dir, true);\n\t\t\t\t\t\tif (operand === path1 && pathWinding.winding ||\n\t\t\t\t\t\t\toperand === path2 && !pathWinding.winding) {\n\t\t\t\t\t\t\tif (pathWinding.quality < 1) {\n\t\t\t\t\t\t\t\tcontinue;\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\twind = { winding: 0, quality: 1 };\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\twind = wind || getWinding(\n\t\t\t\t\t\t\tpt, curveCollisionsMap[path._id][curve.getIndex()],\n\t\t\t\t\t\t\tdir, true);\n\t\t\t\t\tif (wind.quality > winding.quality)\n\t\t\t\t\t\twinding = wind;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tlength -= curveLength;\n\t\t\t}\n\t\t}\n\t\tfor (var j = chain.length - 1; j >= 0; j--) {\n\t\t\tchain[j].segment._winding = winding;\n\t\t}\n\t}\n\n\tfunction tracePaths(segments, operator) {\n\t\tvar paths = [],\n\t\t\tstarts;\n\n\t\tfunction isValid(seg) {\n\t\t\tvar winding;\n\t\t\treturn !!(seg && !seg._visited && (!operator\n\t\t\t\t\t|| operator[(winding = seg._winding || {}).winding]\n\t\t\t\t\t\t&& !(operator.unite && winding.winding === 2\n\t\t\t\t\t\t\t&& winding.windingL && winding.windingR)));\n\t\t}\n\n\t\tfunction isStart(seg) {\n\t\t\tif (seg) {\n\t\t\t\tfor (var i = 0, l = starts.length; i < l; i++) {\n\t\t\t\t\tif (seg === starts[i])\n\t\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn false;\n\t\t}\n\n\t\tfunction visitPath(path) {\n\t\t\tvar segments = path._segments;\n\t\t\tfor (var i = 0, l = segments.length; i < l; i++) {\n\t\t\t\tsegments[i]._visited = true;\n\t\t\t}\n\t\t}\n\n\t\tfunction getCrossingSegments(segment, collectStarts) {\n\t\t\tvar inter = segment._intersection,\n\t\t\t\tstart = inter,\n\t\t\t\tcrossings = [];\n\t\t\tif (collectStarts)\n\t\t\t\tstarts = [segment];\n\n\t\t\tfunction collect(inter, end) {\n\t\t\t\twhile (inter && inter !== end) {\n\t\t\t\t\tvar other = inter._segment,\n\t\t\t\t\t\tpath = other && other._path;\n\t\t\t\t\tif (path) {\n\t\t\t\t\t\tvar next = other.getNext() || path.getFirstSegment(),\n\t\t\t\t\t\t\tnextInter = next._intersection;\n\t\t\t\t\t\tif (other !== segment && (isStart(other)\n\t\t\t\t\t\t\t|| isStart(next)\n\t\t\t\t\t\t\t|| next && (isValid(other) && (isValid(next)\n\t\t\t\t\t\t\t\t|| nextInter && isValid(nextInter._segment))))\n\t\t\t\t\t\t) {\n\t\t\t\t\t\t\tcrossings.push(other);\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif (collectStarts)\n\t\t\t\t\t\t\tstarts.push(other);\n\t\t\t\t\t}\n\t\t\t\t\tinter = inter._next;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif (inter) {\n\t\t\t\tcollect(inter);\n\t\t\t\twhile (inter && inter._previous)\n\t\t\t\t\tinter = inter._previous;\n\t\t\t\tcollect(inter, start);\n\t\t\t}\n\t\t\treturn crossings;\n\t\t}\n\n\t\tsegments.sort(function(seg1, seg2) {\n\t\t\tvar inter1 = seg1._intersection,\n\t\t\t\tinter2 = seg2._intersection,\n\t\t\t\tover1 = !!(inter1 && inter1._overlap),\n\t\t\t\tover2 = !!(inter2 && inter2._overlap),\n\t\t\t\tpath1 = seg1._path,\n\t\t\t\tpath2 = seg2._path;\n\t\t\treturn over1 ^ over2\n\t\t\t\t\t? over1 ? 1 : -1\n\t\t\t\t\t: !inter1 ^ !inter2\n\t\t\t\t\t\t? inter1 ? 1 : -1\n\t\t\t\t\t\t: path1 !== path2\n\t\t\t\t\t\t\t? path1._id - path2._id\n\t\t\t\t\t\t\t: seg1._index - seg2._index;\n\t\t});\n\n\t\tfor (var i = 0, l = segments.length; i < l; i++) {\n\t\t\tvar seg = segments[i],\n\t\t\t\tvalid = isValid(seg),\n\t\t\t\tpath = null,\n\t\t\t\tfinished = false,\n\t\t\t\tclosed = true,\n\t\t\t\tbranches = [],\n\t\t\t\tbranch,\n\t\t\t\tvisited,\n\t\t\t\thandleIn;\n\t\t\tif (valid && seg._path._overlapsOnly) {\n\t\t\t\tvar path1 = seg._path,\n\t\t\t\t\tpath2 = seg._intersection._segment._path;\n\t\t\t\tif (path1.compare(path2)) {\n\t\t\t\t\tif (path1.getArea())\n\t\t\t\t\t\tpaths.push(path1.clone(false));\n\t\t\t\t\tvisitPath(path1);\n\t\t\t\t\tvisitPath(path2);\n\t\t\t\t\tvalid = false;\n\t\t\t\t}\n\t\t\t}\n\t\t\twhile (valid) {\n\t\t\t\tvar first = !path,\n\t\t\t\t\tcrossings = getCrossingSegments(seg, first),\n\t\t\t\t\tother = crossings.shift(),\n\t\t\t\t\tfinished = !first && (isStart(seg) || isStart(other)),\n\t\t\t\t\tcross = !finished && other;\n\t\t\t\tif (first) {\n\t\t\t\t\tpath = new Path(Item.NO_INSERT);\n\t\t\t\t\tbranch = null;\n\t\t\t\t}\n\t\t\t\tif (finished) {\n\t\t\t\t\tif (seg.isFirst() || seg.isLast())\n\t\t\t\t\t\tclosed = seg._path._closed;\n\t\t\t\t\tseg._visited = true;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tif (cross && branch) {\n\t\t\t\t\tbranches.push(branch);\n\t\t\t\t\tbranch = null;\n\t\t\t\t}\n\t\t\t\tif (!branch) {\n\t\t\t\t\tif (cross)\n\t\t\t\t\t\tcrossings.push(seg);\n\t\t\t\t\tbranch = {\n\t\t\t\t\t\tstart: path._segments.length,\n\t\t\t\t\t\tcrossings: crossings,\n\t\t\t\t\t\tvisited: visited = [],\n\t\t\t\t\t\thandleIn: handleIn\n\t\t\t\t\t};\n\t\t\t\t}\n\t\t\t\tif (cross)\n\t\t\t\t\tseg = other;\n\t\t\t\tif (!isValid(seg)) {\n\t\t\t\t\tpath.removeSegments(branch.start);\n\t\t\t\t\tfor (var j = 0, k = visited.length; j < k; j++) {\n\t\t\t\t\t\tvisited[j]._visited = false;\n\t\t\t\t\t}\n\t\t\t\t\tvisited.length = 0;\n\t\t\t\t\tdo {\n\t\t\t\t\t\tseg = branch && branch.crossings.shift();\n\t\t\t\t\t\tif (!seg || !seg._path) {\n\t\t\t\t\t\t\tseg = null;\n\t\t\t\t\t\t\tbranch = branches.pop();\n\t\t\t\t\t\t\tif (branch) {\n\t\t\t\t\t\t\t\tvisited = branch.visited;\n\t\t\t\t\t\t\t\thandleIn = branch.handleIn;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t} while (branch && !isValid(seg));\n\t\t\t\t\tif (!seg)\n\t\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tvar next = seg.getNext();\n\t\t\t\tpath.add(new Segment(seg._point, handleIn,\n\t\t\t\t\t\tnext && seg._handleOut));\n\t\t\t\tseg._visited = true;\n\t\t\t\tvisited.push(seg);\n\t\t\t\tseg = next || seg._path.getFirstSegment();\n\t\t\t\thandleIn = next && next._handleIn;\n\t\t\t}\n\t\t\tif (finished) {\n\t\t\t\tif (closed) {\n\t\t\t\t\tpath.getFirstSegment().setHandleIn(handleIn);\n\t\t\t\t\tpath.setClosed(closed);\n\t\t\t\t}\n\t\t\t\tif (path.getArea() !== 0) {\n\t\t\t\t\tpaths.push(path);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn paths;\n\t}\n\n\treturn {\n\t\t_getWinding: function(point, dir, closed) {\n\t\t\treturn getWinding(point, this.getCurves(), dir, closed);\n\t\t},\n\n\t\tunite: function(path, options) {\n\t\t\treturn traceBoolean(this, path, 'unite', options);\n\t\t},\n\n\t\tintersect: function(path, options) {\n\t\t\treturn traceBoolean(this, path, 'intersect', options);\n\t\t},\n\n\t\tsubtract: function(path, options) {\n\t\t\treturn traceBoolean(this, path, 'subtract', options);\n\t\t},\n\n\t\texclude: function(path, options) {\n\t\t\treturn traceBoolean(this, path, 'exclude', options);\n\t\t},\n\n\t\tdivide: function(path, options) {\n\t\t\treturn options && (options.trace == false || options.stroke)\n\t\t\t\t\t? splitBoolean(this, path, 'divide')\n\t\t\t\t\t: createResult([\n\t\t\t\t\t\tthis.subtract(path, options),\n\t\t\t\t\t\tthis.intersect(path, options)\n\t\t\t\t\t], true, this, path, options);\n\t\t},\n\n\t\tresolveCrossings: function() {\n\t\t\tvar children = this._children,\n\t\t\t\tpaths = children || [this];\n\n\t\t\tfunction hasOverlap(seg, path) {\n\t\t\t\tvar inter = seg && seg._intersection;\n\t\t\t\treturn inter && inter._overlap && inter._path === path;\n\t\t\t}\n\n\t\t\tvar hasOverlaps = false,\n\t\t\t\thasCrossings = false,\n\t\t\t\tintersections = this.getIntersections(null, function(inter) {\n\t\t\t\t\treturn inter.hasOverlap() && (hasOverlaps = true) ||\n\t\t\t\t\t\t\tinter.isCrossing() && (hasCrossings = true);\n\t\t\t\t}),\n\t\t\t\tclearCurves = hasOverlaps && hasCrossings && [];\n\t\t\tintersections = CurveLocation.expand(intersections);\n\t\t\tif (hasOverlaps) {\n\t\t\t\tvar overlaps = divideLocations(intersections, function(inter) {\n\t\t\t\t\treturn inter.hasOverlap();\n\t\t\t\t}, clearCurves);\n\t\t\t\tfor (var i = overlaps.length - 1; i >= 0; i--) {\n\t\t\t\t\tvar overlap = overlaps[i],\n\t\t\t\t\t\tpath = overlap._path,\n\t\t\t\t\t\tseg = overlap._segment,\n\t\t\t\t\t\tprev = seg.getPrevious(),\n\t\t\t\t\t\tnext = seg.getNext();\n\t\t\t\t\tif (hasOverlap(prev, path) && hasOverlap(next, path)) {\n\t\t\t\t\t\tseg.remove();\n\t\t\t\t\t\tprev._handleOut._set(0, 0);\n\t\t\t\t\t\tnext._handleIn._set(0, 0);\n\t\t\t\t\t\tif (prev !== seg && !prev.getCurve().hasLength()) {\n\t\t\t\t\t\t\tnext._handleIn.set(prev._handleIn);\n\t\t\t\t\t\t\tprev.remove();\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (hasCrossings) {\n\t\t\t\tdivideLocations(intersections, hasOverlaps && function(inter) {\n\t\t\t\t\tvar curve1 = inter.getCurve(),\n\t\t\t\t\t\tseg1 = inter.getSegment(),\n\t\t\t\t\t\tother = inter._intersection,\n\t\t\t\t\t\tcurve2 = other._curve,\n\t\t\t\t\t\tseg2 = other._segment;\n\t\t\t\t\tif (curve1 && curve2 && curve1._path && curve2._path)\n\t\t\t\t\t\treturn true;\n\t\t\t\t\tif (seg1)\n\t\t\t\t\t\tseg1._intersection = null;\n\t\t\t\t\tif (seg2)\n\t\t\t\t\t\tseg2._intersection = null;\n\t\t\t\t}, clearCurves);\n\t\t\t\tif (clearCurves)\n\t\t\t\t\tclearCurveHandles(clearCurves);\n\t\t\t\tpaths = tracePaths(Base.each(paths, function(path) {\n\t\t\t\t\tBase.push(this, path._segments);\n\t\t\t\t}, []));\n\t\t\t}\n\t\t\tvar length = paths.length,\n\t\t\t\titem;\n\t\t\tif (length > 1 && children) {\n\t\t\t\tif (paths !== children)\n\t\t\t\t\tthis.setChildren(paths);\n\t\t\t\titem = this;\n\t\t\t} else if (length === 1 && !children) {\n\t\t\t\tif (paths[0] !== this)\n\t\t\t\t\tthis.setSegments(paths[0].removeSegments());\n\t\t\t\titem = this;\n\t\t\t}\n\t\t\tif (!item) {\n\t\t\t\titem = new CompoundPath(Item.NO_INSERT);\n\t\t\t\titem.addChildren(paths);\n\t\t\t\titem = item.reduce();\n\t\t\t\titem.copyAttributes(this);\n\t\t\t\tthis.replaceWith(item);\n\t\t\t}\n\t\t\treturn item;\n\t\t},\n\n\t\treorient: function(nonZero, clockwise) {\n\t\t\tvar children = this._children;\n\t\t\tif (children && children.length) {\n\t\t\t\tthis.setChildren(reorientPaths(this.removeChildren(),\n\t\t\t\t\t\tfunction(w) {\n\t\t\t\t\t\t\treturn !!(nonZero ? w : w & 1);\n\t\t\t\t\t\t},\n\t\t\t\t\t\tclockwise));\n\t\t\t} else if (clockwise !== undefined) {\n\t\t\t\tthis.setClockwise(clockwise);\n\t\t\t}\n\t\t\treturn this;\n\t\t},\n\n\t\tgetInteriorPoint: function() {\n\t\t\tvar bounds = this.getBounds(),\n\t\t\t\tpoint = bounds.getCenter(true);\n\t\t\tif (!this.contains(point)) {\n\t\t\t\tvar curves = this.getCurves(),\n\t\t\t\t\ty = point.y,\n\t\t\t\t\tintercepts = [],\n\t\t\t\t\troots = [];\n\t\t\t\tfor (var i = 0, l = curves.length; i < l; i++) {\n\t\t\t\t\tvar v = curves[i].getValues(),\n\t\t\t\t\t\to0 = v[1],\n\t\t\t\t\t\to1 = v[3],\n\t\t\t\t\t\to2 = v[5],\n\t\t\t\t\t\to3 = v[7];\n\t\t\t\t\tif (y >= min(o0, o1, o2, o3) && y <= max(o0, o1, o2, o3)) {\n\t\t\t\t\t\tvar monoCurves = Curve.getMonoCurves(v);\n\t\t\t\t\t\tfor (var j = 0, m = monoCurves.length; j < m; j++) {\n\t\t\t\t\t\t\tvar mv = monoCurves[j],\n\t\t\t\t\t\t\t\tmo0 = mv[1],\n\t\t\t\t\t\t\t\tmo3 = mv[7];\n\t\t\t\t\t\t\tif ((mo0 !== mo3) &&\n\t\t\t\t\t\t\t\t(y >= mo0 && y <= mo3 || y >= mo3 && y <= mo0)){\n\t\t\t\t\t\t\t\tvar x = y === mo0 ? mv[0]\n\t\t\t\t\t\t\t\t\t: y === mo3 ? mv[6]\n\t\t\t\t\t\t\t\t\t: Curve.solveCubic(mv, 1, y, roots, 0, 1)\n\t\t\t\t\t\t\t\t\t\t=== 1\n\t\t\t\t\t\t\t\t\t\t? Curve.getPoint(mv, roots[0]).x\n\t\t\t\t\t\t\t\t\t\t: (mv[0] + mv[6]) / 2;\n\t\t\t\t\t\t\t\tintercepts.push(x);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tif (intercepts.length > 1) {\n\t\t\t\t\tintercepts.sort(function(a, b) { return a - b; });\n\t\t\t\t\tpoint.x = (intercepts[0] + intercepts[1]) / 2;\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn point;\n\t\t}\n\t};\n});\n\nvar PathFlattener = Base.extend({\n\t_class: 'PathFlattener',\n\n\tinitialize: function(path, flatness, maxRecursion, ignoreStraight, matrix) {\n\t\tvar curves = [],\n\t\t\tparts = [],\n\t\t\tlength = 0,\n\t\t\tminSpan = 1 / (maxRecursion || 32),\n\t\t\tsegments = path._segments,\n\t\t\tsegment1 = segments[0],\n\t\t\tsegment2;\n\n\t\tfunction addCurve(segment1, segment2) {\n\t\t\tvar curve = Curve.getValues(segment1, segment2, matrix);\n\t\t\tcurves.push(curve);\n\t\t\tcomputeParts(curve, segment1._index, 0, 1);\n\t\t}\n\n\t\tfunction computeParts(curve, index, t1, t2) {\n\t\t\tif ((t2 - t1) > minSpan\n\t\t\t\t\t&& !(ignoreStraight && Curve.isStraight(curve))\n\t\t\t\t\t&& !Curve.isFlatEnough(curve, flatness || 0.25)) {\n\t\t\t\tvar halves = Curve.subdivide(curve, 0.5),\n\t\t\t\t\ttMid = (t1 + t2) / 2;\n\t\t\t\tcomputeParts(halves[0], index, t1, tMid);\n\t\t\t\tcomputeParts(halves[1], index, tMid, t2);\n\t\t\t} else {\n\t\t\t\tvar dx = curve[6] - curve[0],\n\t\t\t\t\tdy = curve[7] - curve[1],\n\t\t\t\t\tdist = Math.sqrt(dx * dx + dy * dy);\n\t\t\t\tif (dist > 0) {\n\t\t\t\t\tlength += dist;\n\t\t\t\t\tparts.push({\n\t\t\t\t\t\toffset: length,\n\t\t\t\t\t\tcurve: curve,\n\t\t\t\t\t\tindex: index,\n\t\t\t\t\t\ttime: t2,\n\t\t\t\t\t});\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tfor (var i = 1, l = segments.length; i < l; i++) {\n\t\t\tsegment2 = segments[i];\n\t\t\taddCurve(segment1, segment2);\n\t\t\tsegment1 = segment2;\n\t\t}\n\t\tif (path._closed)\n\t\t\taddCurve(segment2 || segment1, segments[0]);\n\t\tthis.curves = curves;\n\t\tthis.parts = parts;\n\t\tthis.length = length;\n\t\tthis.index = 0;\n\t},\n\n\t_get: function(offset) {\n\t\tvar parts = this.parts,\n\t\t\tlength = parts.length,\n\t\t\tstart,\n\t\t\ti, j = this.index;\n\t\tfor (;;) {\n\t\t\ti = j;\n\t\t\tif (!j || parts[--j].offset < offset)\n\t\t\t\tbreak;\n\t\t}\n\t\tfor (; i < length; i++) {\n\t\t\tvar part = parts[i];\n\t\t\tif (part.offset >= offset) {\n\t\t\t\tthis.index = i;\n\t\t\t\tvar prev = parts[i - 1],\n\t\t\t\t\tprevTime = prev && prev.index === part.index ? prev.time : 0,\n\t\t\t\t\tprevOffset = prev ? prev.offset : 0;\n\t\t\t\treturn {\n\t\t\t\t\tindex: part.index,\n\t\t\t\t\ttime: prevTime + (part.time - prevTime)\n\t\t\t\t\t\t* (offset - prevOffset) / (part.offset - prevOffset)\n\t\t\t\t};\n\t\t\t}\n\t\t}\n\t\treturn {\n\t\t\tindex: parts[length - 1].index,\n\t\t\ttime: 1\n\t\t};\n\t},\n\n\tdrawPart: function(ctx, from, to) {\n\t\tvar start = this._get(from),\n\t\t\tend = this._get(to);\n\t\tfor (var i = start.index, l = end.index; i <= l; i++) {\n\t\t\tvar curve = Curve.getPart(this.curves[i],\n\t\t\t\t\ti === start.index ? start.time : 0,\n\t\t\t\t\ti === end.index ? end.time : 1);\n\t\t\tif (i === start.index)\n\t\t\t\tctx.moveTo(curve[0], curve[1]);\n\t\t\tctx.bezierCurveTo.apply(ctx, curve.slice(2));\n\t\t}\n\t}\n}, Base.each(Curve._evaluateMethods,\n\tfunction(name) {\n\t\tthis[name + 'At'] = function(offset) {\n\t\t\tvar param = this._get(offset);\n\t\t\treturn Curve[name](this.curves[param.index], param.time);\n\t\t};\n\t}, {})\n);\n\nvar PathFitter = Base.extend({\n\tinitialize: function(path) {\n\t\tvar points = this.points = [],\n\t\t\tsegments = path._segments,\n\t\t\tclosed = path._closed;\n\t\tfor (var i = 0, prev, l = segments.length; i < l; i++) {\n\t\t\tvar point = segments[i].point;\n\t\t\tif (!prev || !prev.equals(point)) {\n\t\t\t\tpoints.push(prev = point.clone());\n\t\t\t}\n\t\t}\n\t\tif (closed) {\n\t\t\tpoints.unshift(points[points.length - 1]);\n\t\t\tpoints.push(points[1]);\n\t\t}\n\t\tthis.closed = closed;\n\t},\n\n\tfit: function(error) {\n\t\tvar points = this.points,\n\t\t\tlength = points.length,\n\t\t\tsegments = null;\n\t\tif (length > 0) {\n\t\t\tsegments = [new Segment(points[0])];\n\t\t\tif (length > 1) {\n\t\t\t\tthis.fitCubic(segments, error, 0, length - 1,\n\t\t\t\t\t\tpoints[1].subtract(points[0]),\n\t\t\t\t\t\tpoints[length - 2].subtract(points[length - 1]));\n\t\t\t\tif (this.closed) {\n\t\t\t\t\tsegments.shift();\n\t\t\t\t\tsegments.pop();\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn segments;\n\t},\n\n\tfitCubic: function(segments, error, first, last, tan1, tan2) {\n\t\tvar points = this.points;\n\t\tif (last - first === 1) {\n\t\t\tvar pt1 = points[first],\n\t\t\t\tpt2 = points[last],\n\t\t\t\tdist = pt1.getDistance(pt2) / 3;\n\t\t\tthis.addCurve(segments, [pt1, pt1.add(tan1.normalize(dist)),\n\t\t\t\t\tpt2.add(tan2.normalize(dist)), pt2]);\n\t\t\treturn;\n\t\t}\n\t\tvar uPrime = this.chordLengthParameterize(first, last),\n\t\t\tmaxError = Math.max(error, error * error),\n\t\t\tsplit,\n\t\t\tparametersInOrder = true;\n\t\tfor (var i = 0; i <= 4; i++) {\n\t\t\tvar curve = this.generateBezier(first, last, uPrime, tan1, tan2);\n\t\t\tvar max = this.findMaxError(first, last, curve, uPrime);\n\t\t\tif (max.error < error && parametersInOrder) {\n\t\t\t\tthis.addCurve(segments, curve);\n\t\t\t\treturn;\n\t\t\t}\n\t\t\tsplit = max.index;\n\t\t\tif (max.error >= maxError)\n\t\t\t\tbreak;\n\t\t\tparametersInOrder = this.reparameterize(first, last, uPrime, curve);\n\t\t\tmaxError = max.error;\n\t\t}\n\t\tvar tanCenter = points[split - 1].subtract(points[split + 1]);\n\t\tthis.fitCubic(segments, error, first, split, tan1, tanCenter);\n\t\tthis.fitCubic(segments, error, split, last, tanCenter.negate(), tan2);\n\t},\n\n\taddCurve: function(segments, curve) {\n\t\tvar prev = segments[segments.length - 1];\n\t\tprev.setHandleOut(curve[1].subtract(curve[0]));\n\t\tsegments.push(new Segment(curve[3], curve[2].subtract(curve[3])));\n\t},\n\n\tgenerateBezier: function(first, last, uPrime, tan1, tan2) {\n\t\tvar epsilon = 1e-12,\n\t\t\tabs = Math.abs,\n\t\t\tpoints = this.points,\n\t\t\tpt1 = points[first],\n\t\t\tpt2 = points[last],\n\t\t\tC = [[0, 0], [0, 0]],\n\t\t\tX = [0, 0];\n\n\t\tfor (var i = 0, l = last - first + 1; i < l; i++) {\n\t\t\tvar u = uPrime[i],\n\t\t\t\tt = 1 - u,\n\t\t\t\tb = 3 * u * t,\n\t\t\t\tb0 = t * t * t,\n\t\t\t\tb1 = b * t,\n\t\t\t\tb2 = b * u,\n\t\t\t\tb3 = u * u * u,\n\t\t\t\ta1 = tan1.normalize(b1),\n\t\t\t\ta2 = tan2.normalize(b2),\n\t\t\t\ttmp = points[first + i]\n\t\t\t\t\t.subtract(pt1.multiply(b0 + b1))\n\t\t\t\t\t.subtract(pt2.multiply(b2 + b3));\n\t\t\tC[0][0] += a1.dot(a1);\n\t\t\tC[0][1] += a1.dot(a2);\n\t\t\tC[1][0] = C[0][1];\n\t\t\tC[1][1] += a2.dot(a2);\n\t\t\tX[0] += a1.dot(tmp);\n\t\t\tX[1] += a2.dot(tmp);\n\t\t}\n\n\t\tvar detC0C1 = C[0][0] * C[1][1] - C[1][0] * C[0][1],\n\t\t\talpha1,\n\t\t\talpha2;\n\t\tif (abs(detC0C1) > epsilon) {\n\t\t\tvar detC0X = C[0][0] * X[1] - C[1][0] * X[0],\n\t\t\t\tdetXC1 = X[0] * C[1][1] - X[1] * C[0][1];\n\t\t\talpha1 = detXC1 / detC0C1;\n\t\t\talpha2 = detC0X / detC0C1;\n\t\t} else {\n\t\t\tvar c0 = C[0][0] + C[0][1],\n\t\t\t\tc1 = C[1][0] + C[1][1];\n\t\t\talpha1 = alpha2 = abs(c0) > epsilon ? X[0] / c0\n\t\t\t\t\t\t\t: abs(c1) > epsilon ? X[1] / c1\n\t\t\t\t\t\t\t: 0;\n\t\t}\n\n\t\tvar segLength = pt2.getDistance(pt1),\n\t\t\teps = epsilon * segLength,\n\t\t\thandle1,\n\t\t\thandle2;\n\t\tif (alpha1 < eps || alpha2 < eps) {\n\t\t\talpha1 = alpha2 = segLength / 3;\n\t\t} else {\n\t\t\tvar line = pt2.subtract(pt1);\n\t\t\thandle1 = tan1.normalize(alpha1);\n\t\t\thandle2 = tan2.normalize(alpha2);\n\t\t\tif (handle1.dot(line) - handle2.dot(line) > segLength * segLength) {\n\t\t\t\talpha1 = alpha2 = segLength / 3;\n\t\t\t\thandle1 = handle2 = null;\n\t\t\t}\n\t\t}\n\n\t\treturn [pt1,\n\t\t\t\tpt1.add(handle1 || tan1.normalize(alpha1)),\n\t\t\t\tpt2.add(handle2 || tan2.normalize(alpha2)),\n\t\t\t\tpt2];\n\t},\n\n\treparameterize: function(first, last, u, curve) {\n\t\tfor (var i = first; i <= last; i++) {\n\t\t\tu[i - first] = this.findRoot(curve, this.points[i], u[i - first]);\n\t\t}\n\t\tfor (var i = 1, l = u.length; i < l; i++) {\n\t\t\tif (u[i] <= u[i - 1])\n\t\t\t\treturn false;\n\t\t}\n\t\treturn true;\n\t},\n\n\tfindRoot: function(curve, point, u) {\n\t\tvar curve1 = [],\n\t\t\tcurve2 = [];\n\t\tfor (var i = 0; i <= 2; i++) {\n\t\t\tcurve1[i] = curve[i + 1].subtract(curve[i]).multiply(3);\n\t\t}\n\t\tfor (var i = 0; i <= 1; i++) {\n\t\t\tcurve2[i] = curve1[i + 1].subtract(curve1[i]).multiply(2);\n\t\t}\n\t\tvar pt = this.evaluate(3, curve, u),\n\t\t\tpt1 = this.evaluate(2, curve1, u),\n\t\t\tpt2 = this.evaluate(1, curve2, u),\n\t\t\tdiff = pt.subtract(point),\n\t\t\tdf = pt1.dot(pt1) + diff.dot(pt2);\n\t\treturn Numerical.isMachineZero(df) ? u : u - diff.dot(pt1) / df;\n\t},\n\n\tevaluate: function(degree, curve, t) {\n\t\tvar tmp = curve.slice();\n\t\tfor (var i = 1; i <= degree; i++) {\n\t\t\tfor (var j = 0; j <= degree - i; j++) {\n\t\t\t\ttmp[j] = tmp[j].multiply(1 - t).add(tmp[j + 1].multiply(t));\n\t\t\t}\n\t\t}\n\t\treturn tmp[0];\n\t},\n\n\tchordLengthParameterize: function(first, last) {\n\t\tvar u = [0];\n\t\tfor (var i = first + 1; i <= last; i++) {\n\t\t\tu[i - first] = u[i - first - 1]\n\t\t\t\t\t+ this.points[i].getDistance(this.points[i - 1]);\n\t\t}\n\t\tfor (var i = 1, m = last - first; i <= m; i++) {\n\t\t\tu[i] /= u[m];\n\t\t}\n\t\treturn u;\n\t},\n\n\tfindMaxError: function(first, last, curve, u) {\n\t\tvar index = Math.floor((last - first + 1) / 2),\n\t\t\tmaxDist = 0;\n\t\tfor (var i = first + 1; i < last; i++) {\n\t\t\tvar P = this.evaluate(3, curve, u[i - first]);\n\t\t\tvar v = P.subtract(this.points[i]);\n\t\t\tvar dist = v.x * v.x + v.y * v.y;\n\t\t\tif (dist >= maxDist) {\n\t\t\t\tmaxDist = dist;\n\t\t\t\tindex = i;\n\t\t\t}\n\t\t}\n\t\treturn {\n\t\t\terror: maxDist,\n\t\t\tindex: index\n\t\t};\n\t}\n});\n\nvar TextItem = Item.extend({\n\t_class: 'TextItem',\n\t_applyMatrix: false,\n\t_canApplyMatrix: false,\n\t_serializeFields: {\n\t\tcontent: null\n\t},\n\t_boundsOptions: { stroke: false, handle: false },\n\n\tinitialize: function TextItem(arg) {\n\t\tthis._content = '';\n\t\tthis._lines = [];\n\t\tvar hasProps = arg && Base.isPlainObject(arg)\n\t\t\t\t&& arg.x === undefined && arg.y === undefined;\n\t\tthis._initialize(hasProps && arg, !hasProps && Point.read(arguments));\n\t},\n\n\t_equals: function(item) {\n\t\treturn this._content === item._content;\n\t},\n\n\tcopyContent: function(source) {\n\t\tthis.setContent(source._content);\n\t},\n\n\tgetContent: function() {\n\t\treturn this._content;\n\t},\n\n\tsetContent: function(content) {\n\t\tthis._content = '' + content;\n\t\tthis._lines = this._content.split(/\\r\\n|\\n|\\r/mg);\n\t\tthis._changed(521);\n\t},\n\n\tisEmpty: function() {\n\t\treturn !this._content;\n\t},\n\n\tgetCharacterStyle: '#getStyle',\n\tsetCharacterStyle: '#setStyle',\n\n\tgetParagraphStyle: '#getStyle',\n\tsetParagraphStyle: '#setStyle'\n});\n\nvar PointText = TextItem.extend({\n\t_class: 'PointText',\n\n\tinitialize: function PointText() {\n\t\tTextItem.apply(this, arguments);\n\t},\n\n\tgetPoint: function() {\n\t\tvar point = this._matrix.getTranslation();\n\t\treturn new LinkedPoint(point.x, point.y, this, 'setPoint');\n\t},\n\n\tsetPoint: function() {\n\t\tvar point = Point.read(arguments);\n\t\tthis.translate(point.subtract(this._matrix.getTranslation()));\n\t},\n\n\t_draw: function(ctx, param, viewMatrix) {\n\t\tif (!this._content)\n\t\t\treturn;\n\t\tthis._setStyles(ctx, param, viewMatrix);\n\t\tvar lines = this._lines,\n\t\t\tstyle = this._style,\n\t\t\thasFill = style.hasFill(),\n\t\t\thasStroke = style.hasStroke(),\n\t\t\tleading = style.getLeading(),\n\t\t\tshadowColor = ctx.shadowColor;\n\t\tctx.font = style.getFontStyle();\n\t\tctx.textAlign = style.getJustification();\n\t\tfor (var i = 0, l = lines.length; i < l; i++) {\n\t\t\tctx.shadowColor = shadowColor;\n\t\t\tvar line = lines[i];\n\t\t\tif (hasFill) {\n\t\t\t\tctx.fillText(line, 0, 0);\n\t\t\t\tctx.shadowColor = 'rgba(0,0,0,0)';\n\t\t\t}\n\t\t\tif (hasStroke)\n\t\t\t\tctx.strokeText(line, 0, 0);\n\t\t\tctx.translate(0, leading);\n\t\t}\n\t},\n\n\t_getBounds: function(matrix, options) {\n\t\tvar style = this._style,\n\t\t\tlines = this._lines,\n\t\t\tnumLines = lines.length,\n\t\t\tjustification = style.getJustification(),\n\t\t\tleading = style.getLeading(),\n\t\t\twidth = this.getView().getTextWidth(style.getFontStyle(), lines),\n\t\t\tx = 0;\n\t\tif (justification !== 'left')\n\t\t\tx -= width / (justification === 'center' ? 2: 1);\n\t\tvar rect = new Rectangle(x,\n\t\t\t\t\tnumLines ? - 0.75 * leading : 0,\n\t\t\t\t\twidth, numLines * leading);\n\t\treturn matrix ? matrix._transformBounds(rect, rect) : rect;\n\t}\n});\n\nvar Color = Base.extend(new function() {\n\tvar types = {\n\t\tgray: ['gray'],\n\t\trgb: ['red', 'green', 'blue'],\n\t\thsb: ['hue', 'saturation', 'brightness'],\n\t\thsl: ['hue', 'saturation', 'lightness'],\n\t\tgradient: ['gradient', 'origin', 'destination', 'highlight']\n\t};\n\n\tvar componentParsers = {},\n\t\tnamedColors = {\n\t\t\ttransparent: [0, 0, 0, 0]\n\t\t},\n\t\tcolorCtx;\n\n\tfunction fromCSS(string) {\n\t\tvar match = string.match(\n\t\t\t\t/^#([\\da-f]{2})([\\da-f]{2})([\\da-f]{2})([\\da-f]{2})?$/i\n\t\t\t) || string.match(\n\t\t\t\t/^#([\\da-f])([\\da-f])([\\da-f])([\\da-f])?$/i\n\t\t\t),\n\t\t\ttype = 'rgb',\n\t\t\tcomponents;\n\t\tif (match) {\n\t\t\tvar amount = match[4] ? 4 : 3;\n\t\t\tcomponents = new Array(amount);\n\t\t\tfor (var i = 0; i < amount; i++) {\n\t\t\t\tvar value = match[i + 1];\n\t\t\t\tcomponents[i] = parseInt(value.length == 1\n\t\t\t\t\t\t? value + value : value, 16) / 255;\n\t\t\t}\n\t\t} else if (match = string.match(/^(rgb|hsl)a?\\((.*)\\)$/)) {\n\t\t\ttype = match[1];\n\t\t\tcomponents = match[2].trim().split(/[,\\s]+/g);\n\t\t\tvar isHSL = type === 'hsl';\n\t\t\tfor (var i = 0, l = Math.min(components.length, 4); i < l; i++) {\n\t\t\t\tvar component = components[i];\n\t\t\t\tvar value = parseFloat(component);\n\t\t\t\tif (isHSL) {\n\t\t\t\t\tif (i === 0) {\n\t\t\t\t\t\tvar unit = component.match(/([a-z]*)$/)[1];\n\t\t\t\t\t\tvalue *= ({\n\t\t\t\t\t\t\tturn: 360,\n\t\t\t\t\t\t\trad: 180 / Math.PI,\n\t\t\t\t\t\t\tgrad: 0.9\n\t\t\t\t\t\t}[unit] || 1);\n\t\t\t\t\t} else if (i < 3) {\n\t\t\t\t\t\tvalue /= 100;\n\t\t\t\t\t}\n\t\t\t\t} else if (i < 3) {\n\t\t\t\t\tvalue /= /%$/.test(component) ? 100 : 255;\n\t\t\t\t}\n\t\t\t\tcomponents[i] = value;\n\t\t\t}\n\t\t} else {\n\t\t\tvar color = namedColors[string];\n\t\t\tif (!color) {\n\t\t\t\tif (window) {\n\t\t\t\t\tif (!colorCtx) {\n\t\t\t\t\t\tcolorCtx = CanvasProvider.getContext(1, 1);\n\t\t\t\t\t\tcolorCtx.globalCompositeOperation = 'copy';\n\t\t\t\t\t}\n\t\t\t\t\tcolorCtx.fillStyle = 'rgba(0,0,0,0)';\n\t\t\t\t\tcolorCtx.fillStyle = string;\n\t\t\t\t\tcolorCtx.fillRect(0, 0, 1, 1);\n\t\t\t\t\tvar data = colorCtx.getImageData(0, 0, 1, 1).data;\n\t\t\t\t\tcolor = namedColors[string] = [\n\t\t\t\t\t\tdata[0] / 255,\n\t\t\t\t\t\tdata[1] / 255,\n\t\t\t\t\t\tdata[2] / 255\n\t\t\t\t\t];\n\t\t\t\t} else {\n\t\t\t\t\tcolor = [0, 0, 0];\n\t\t\t\t}\n\t\t\t}\n\t\t\tcomponents = color.slice();\n\t\t}\n\t\treturn [type, components];\n\t}\n\n\tvar hsbIndices = [\n\t\t[0, 3, 1],\n\t\t[2, 0, 1],\n\t\t[1, 0, 3],\n\t\t[1, 2, 0],\n\t\t[3, 1, 0],\n\t\t[0, 1, 2]\n\t];\n\n\tvar converters = {\n\t\t'rgb-hsb': function(r, g, b) {\n\t\t\tvar max = Math.max(r, g, b),\n\t\t\t\tmin = Math.min(r, g, b),\n\t\t\t\tdelta = max - min,\n\t\t\t\th = delta === 0 ? 0\n\t\t\t\t\t: ( max == r ? (g - b) / delta + (g < b ? 6 : 0)\n\t\t\t\t\t\t: max == g ? (b - r) / delta + 2\n\t\t\t\t\t\t: (r - g) / delta + 4) * 60;\n\t\t\treturn [h, max === 0 ? 0 : delta / max, max];\n\t\t},\n\n\t\t'hsb-rgb': function(h, s, b) {\n\t\t\th = (((h / 60) % 6) + 6) % 6;\n\t\t\tvar i = Math.floor(h),\n\t\t\t\tf = h - i,\n\t\t\t\ti = hsbIndices[i],\n\t\t\t\tv = [\n\t\t\t\t\tb,\n\t\t\t\t\tb * (1 - s),\n\t\t\t\t\tb * (1 - s * f),\n\t\t\t\t\tb * (1 - s * (1 - f))\n\t\t\t\t];\n\t\t\treturn [v[i[0]], v[i[1]], v[i[2]]];\n\t\t},\n\n\t\t'rgb-hsl': function(r, g, b) {\n\t\t\tvar max = Math.max(r, g, b),\n\t\t\t\tmin = Math.min(r, g, b),\n\t\t\t\tdelta = max - min,\n\t\t\t\tachromatic = delta === 0,\n\t\t\t\th = achromatic ? 0\n\t\t\t\t\t: ( max == r ? (g - b) / delta + (g < b ? 6 : 0)\n\t\t\t\t\t\t: max == g ? (b - r) / delta + 2\n\t\t\t\t\t\t: (r - g) / delta + 4) * 60,\n\t\t\t\tl = (max + min) / 2,\n\t\t\t\ts = achromatic ? 0 : l < 0.5\n\t\t\t\t\t\t? delta / (max + min)\n\t\t\t\t\t\t: delta / (2 - max - min);\n\t\t\treturn [h, s, l];\n\t\t},\n\n\t\t'hsl-rgb': function(h, s, l) {\n\t\t\th = (((h / 360) % 1) + 1) % 1;\n\t\t\tif (s === 0)\n\t\t\t\treturn [l, l, l];\n\t\t\tvar t3s = [ h + 1 / 3, h, h - 1 / 3 ],\n\t\t\t\tt2 = l < 0.5 ? l * (1 + s) : l + s - l * s,\n\t\t\t\tt1 = 2 * l - t2,\n\t\t\t\tc = [];\n\t\t\tfor (var i = 0; i < 3; i++) {\n\t\t\t\tvar t3 = t3s[i];\n\t\t\t\tif (t3 < 0) t3 += 1;\n\t\t\t\tif (t3 > 1) t3 -= 1;\n\t\t\t\tc[i] = 6 * t3 < 1\n\t\t\t\t\t? t1 + (t2 - t1) * 6 * t3\n\t\t\t\t\t: 2 * t3 < 1\n\t\t\t\t\t\t? t2\n\t\t\t\t\t\t: 3 * t3 < 2\n\t\t\t\t\t\t\t? t1 + (t2 - t1) * ((2 / 3) - t3) * 6\n\t\t\t\t\t\t\t: t1;\n\t\t\t}\n\t\t\treturn c;\n\t\t},\n\n\t\t'rgb-gray': function(r, g, b) {\n\t\t\treturn [r * 0.2989 + g * 0.587 + b * 0.114];\n\t\t},\n\n\t\t'gray-rgb': function(g) {\n\t\t\treturn [g, g, g];\n\t\t},\n\n\t\t'gray-hsb': function(g) {\n\t\t\treturn [0, 0, g];\n\t\t},\n\n\t\t'gray-hsl': function(g) {\n\t\t\treturn [0, 0, g];\n\t\t},\n\n\t\t'gradient-rgb': function() {\n\t\t\treturn [];\n\t\t},\n\n\t\t'rgb-gradient': function() {\n\t\t\treturn [];\n\t\t}\n\n\t};\n\n\treturn Base.each(types, function(properties, type) {\n\t\tcomponentParsers[type] = [];\n\t\tBase.each(properties, function(name, index) {\n\t\t\tvar part = Base.capitalize(name),\n\t\t\t\thasOverlap = /^(hue|saturation)$/.test(name),\n\t\t\t\tparser = componentParsers[type][index] = type === 'gradient'\n\t\t\t\t\t? name === 'gradient'\n\t\t\t\t\t\t? function(value) {\n\t\t\t\t\t\t\tvar current = this._components[0];\n\t\t\t\t\t\t\tvalue = Gradient.read(\n\t\t\t\t\t\t\t\tArray.isArray(value)\n\t\t\t\t\t\t\t\t\t? value\n\t\t\t\t\t\t\t\t\t: arguments, 0, { readNull: true }\n\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\tif (current !== value) {\n\t\t\t\t\t\t\t\tif (current)\n\t\t\t\t\t\t\t\t\tcurrent._removeOwner(this);\n\t\t\t\t\t\t\t\tif (value)\n\t\t\t\t\t\t\t\t\tvalue._addOwner(this);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\treturn value;\n\t\t\t\t\t\t}\n\t\t\t\t\t\t: function() {\n\t\t\t\t\t\t\treturn Point.read(arguments, 0, {\n\t\t\t\t\t\t\t\t\treadNull: name === 'highlight',\n\t\t\t\t\t\t\t\t\tclone: true\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t}\n\t\t\t\t\t: function(value) {\n\t\t\t\t\t\treturn value == null || isNaN(value) ? 0 : +value;\n\t\t\t\t\t};\n\t\t\tthis['get' + part] = function() {\n\t\t\t\treturn this._type === type\n\t\t\t\t\t|| hasOverlap && /^hs[bl]$/.test(this._type)\n\t\t\t\t\t\t? this._components[index]\n\t\t\t\t\t\t: this._convert(type)[index];\n\t\t\t};\n\n\t\t\tthis['set' + part] = function(value) {\n\t\t\t\tif (this._type !== type\n\t\t\t\t\t\t&& !(hasOverlap && /^hs[bl]$/.test(this._type))) {\n\t\t\t\t\tthis._components = this._convert(type);\n\t\t\t\t\tthis._properties = types[type];\n\t\t\t\t\tthis._type = type;\n\t\t\t\t}\n\t\t\t\tthis._components[index] = parser.call(this, value);\n\t\t\t\tthis._changed();\n\t\t\t};\n\t\t}, this);\n\t}, {\n\t\t_class: 'Color',\n\t\t_readIndex: true,\n\n\t\tinitialize: function Color(arg) {\n\t\t\tvar args = arguments,\n\t\t\t\treading = this.__read,\n\t\t\t\tread = 0,\n\t\t\t\ttype,\n\t\t\t\tcomponents,\n\t\t\t\talpha,\n\t\t\t\tvalues;\n\t\t\tif (Array.isArray(arg)) {\n\t\t\t\targs = arg;\n\t\t\t\targ = args[0];\n\t\t\t}\n\t\t\tvar argType = arg != null && typeof arg;\n\t\t\tif (argType === 'string' && arg in types) {\n\t\t\t\ttype = arg;\n\t\t\t\targ = args[1];\n\t\t\t\tif (Array.isArray(arg)) {\n\t\t\t\t\tcomponents = arg;\n\t\t\t\t\talpha = args[2];\n\t\t\t\t} else {\n\t\t\t\t\tif (reading)\n\t\t\t\t\t\tread = 1;\n\t\t\t\t\targs = Base.slice(args, 1);\n\t\t\t\t\targType = typeof arg;\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (!components) {\n\t\t\t\tvalues = argType === 'number'\n\t\t\t\t\t\t? args\n\t\t\t\t\t\t: argType === 'object' && arg.length != null\n\t\t\t\t\t\t\t? arg\n\t\t\t\t\t\t\t: null;\n\t\t\t\tif (values) {\n\t\t\t\t\tif (!type)\n\t\t\t\t\t\ttype = values.length >= 3\n\t\t\t\t\t\t\t\t? 'rgb'\n\t\t\t\t\t\t\t\t: 'gray';\n\t\t\t\t\tvar length = types[type].length;\n\t\t\t\t\talpha = values[length];\n\t\t\t\t\tif (reading) {\n\t\t\t\t\t\tread += values === arguments\n\t\t\t\t\t\t\t? length + (alpha != null ? 1 : 0)\n\t\t\t\t\t\t\t: 1;\n\t\t\t\t\t}\n\t\t\t\t\tif (values.length > length)\n\t\t\t\t\t\tvalues = Base.slice(values, 0, length);\n\t\t\t\t} else if (argType === 'string') {\n\t\t\t\t\tvar converted = fromCSS(arg);\n\t\t\t\t\ttype = converted[0];\n\t\t\t\t\tcomponents = converted[1];\n\t\t\t\t\tif (components.length === 4) {\n\t\t\t\t\t\talpha = components[3];\n\t\t\t\t\t\tcomponents.length--;\n\t\t\t\t\t}\n\t\t\t\t} else if (argType === 'object') {\n\t\t\t\t\tif (arg.constructor === Color) {\n\t\t\t\t\t\ttype = arg._type;\n\t\t\t\t\t\tcomponents = arg._components.slice();\n\t\t\t\t\t\talpha = arg._alpha;\n\t\t\t\t\t\tif (type === 'gradient') {\n\t\t\t\t\t\t\tfor (var i = 1, l = components.length; i < l; i++) {\n\t\t\t\t\t\t\t\tvar point = components[i];\n\t\t\t\t\t\t\t\tif (point)\n\t\t\t\t\t\t\t\t\tcomponents[i] = point.clone();\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t} else if (arg.constructor === Gradient) {\n\t\t\t\t\t\ttype = 'gradient';\n\t\t\t\t\t\tvalues = args;\n\t\t\t\t\t} else {\n\t\t\t\t\t\ttype = 'hue' in arg\n\t\t\t\t\t\t\t? 'lightness' in arg\n\t\t\t\t\t\t\t\t? 'hsl'\n\t\t\t\t\t\t\t\t: 'hsb'\n\t\t\t\t\t\t\t: 'gradient' in arg || 'stops' in arg\n\t\t\t\t\t\t\t\t\t|| 'radial' in arg\n\t\t\t\t\t\t\t\t? 'gradient'\n\t\t\t\t\t\t\t\t: 'gray' in arg\n\t\t\t\t\t\t\t\t\t? 'gray'\n\t\t\t\t\t\t\t\t\t: 'rgb';\n\t\t\t\t\t\tvar properties = types[type],\n\t\t\t\t\t\t\tparsers = componentParsers[type];\n\t\t\t\t\t\tthis._components = components = [];\n\t\t\t\t\t\tfor (var i = 0, l = properties.length; i < l; i++) {\n\t\t\t\t\t\t\tvar value = arg[properties[i]];\n\t\t\t\t\t\t\tif (value == null && !i && type === 'gradient'\n\t\t\t\t\t\t\t\t\t&& 'stops' in arg) {\n\t\t\t\t\t\t\t\tvalue = {\n\t\t\t\t\t\t\t\t\tstops: arg.stops,\n\t\t\t\t\t\t\t\t\tradial: arg.radial\n\t\t\t\t\t\t\t\t};\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tvalue = parsers[i].call(this, value);\n\t\t\t\t\t\t\tif (value != null)\n\t\t\t\t\t\t\t\tcomponents[i] = value;\n\t\t\t\t\t\t}\n\t\t\t\t\t\talpha = arg.alpha;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tif (reading && type)\n\t\t\t\t\tread = 1;\n\t\t\t}\n\t\t\tthis._type = type || 'rgb';\n\t\t\tif (!components) {\n\t\t\t\tthis._components = components = [];\n\t\t\t\tvar parsers = componentParsers[this._type];\n\t\t\t\tfor (var i = 0, l = parsers.length; i < l; i++) {\n\t\t\t\t\tvar value = parsers[i].call(this, values && values[i]);\n\t\t\t\t\tif (value != null)\n\t\t\t\t\t\tcomponents[i] = value;\n\t\t\t\t}\n\t\t\t}\n\t\t\tthis._components = components;\n\t\t\tthis._properties = types[this._type];\n\t\t\tthis._alpha = alpha;\n\t\t\tif (reading)\n\t\t\t\tthis.__read = read;\n\t\t\treturn this;\n\t\t},\n\n\t\tset: '#initialize',\n\n\t\t_serialize: function(options, dictionary) {\n\t\t\tvar components = this.getComponents();\n\t\t\treturn Base.serialize(\n\t\t\t\t\t/^(gray|rgb)$/.test(this._type)\n\t\t\t\t\t\t? components\n\t\t\t\t\t\t: [this._type].concat(components),\n\t\t\t\t\toptions, true, dictionary);\n\t\t},\n\n\t\t_changed: function() {\n\t\t\tthis._canvasStyle = null;\n\t\t\tif (this._owner) {\n\t\t\t\tif (this._setter) {\n\t\t\t\t\tthis._owner[this._setter](this);\n\t\t\t\t} else {\n\t\t\t\t\tthis._owner._changed(129);\n\t\t\t\t}\n\t\t\t}\n\t\t},\n\n\t\t_convert: function(type) {\n\t\t\tvar converter;\n\t\t\treturn this._type === type\n\t\t\t\t\t? this._components.slice()\n\t\t\t\t\t: (converter = converters[this._type + '-' + type])\n\t\t\t\t\t\t? converter.apply(this, this._components)\n\t\t\t\t\t\t: converters['rgb-' + type].apply(this,\n\t\t\t\t\t\t\tconverters[this._type + '-rgb'].apply(this,\n\t\t\t\t\t\t\t\tthis._components));\n\t\t},\n\n\t\tconvert: function(type) {\n\t\t\treturn new Color(type, this._convert(type), this._alpha);\n\t\t},\n\n\t\tgetType: function() {\n\t\t\treturn this._type;\n\t\t},\n\n\t\tsetType: function(type) {\n\t\t\tthis._components = this._convert(type);\n\t\t\tthis._properties = types[type];\n\t\t\tthis._type = type;\n\t\t},\n\n\t\tgetComponents: function() {\n\t\t\tvar components = this._components.slice();\n\t\t\tif (this._alpha != null)\n\t\t\t\tcomponents.push(this._alpha);\n\t\t\treturn components;\n\t\t},\n\n\t\tgetAlpha: function() {\n\t\t\treturn this._alpha != null ? this._alpha : 1;\n\t\t},\n\n\t\tsetAlpha: function(alpha) {\n\t\t\tthis._alpha = alpha == null ? null : Math.min(Math.max(alpha, 0), 1);\n\t\t\tthis._changed();\n\t\t},\n\n\t\thasAlpha: function() {\n\t\t\treturn this._alpha != null;\n\t\t},\n\n\t\tequals: function(color) {\n\t\t\tvar col = Base.isPlainValue(color, true)\n\t\t\t\t\t? Color.read(arguments)\n\t\t\t\t\t: color;\n\t\t\treturn col === this || col && this._class === col._class\n\t\t\t\t\t&& this._type === col._type\n\t\t\t\t\t&& this.getAlpha() === col.getAlpha()\n\t\t\t\t\t&& Base.equals(this._components, col._components)\n\t\t\t\t\t|| false;\n\t\t},\n\n\t\ttoString: function() {\n\t\t\tvar properties = this._properties,\n\t\t\t\tparts = [],\n\t\t\t\tisGradient = this._type === 'gradient',\n\t\t\t\tf = Formatter.instance;\n\t\t\tfor (var i = 0, l = properties.length; i < l; i++) {\n\t\t\t\tvar value = this._components[i];\n\t\t\t\tif (value != null)\n\t\t\t\t\tparts.push(properties[i] + ': '\n\t\t\t\t\t\t\t+ (isGradient ? value : f.number(value)));\n\t\t\t}\n\t\t\tif (this._alpha != null)\n\t\t\t\tparts.push('alpha: ' + f.number(this._alpha));\n\t\t\treturn '{ ' + parts.join(', ') + ' }';\n\t\t},\n\n\t\ttoCSS: function(hex) {\n\t\t\tvar components = this._convert('rgb'),\n\t\t\t\talpha = hex || this._alpha == null ? 1 : this._alpha;\n\t\t\tfunction convert(val) {\n\t\t\t\treturn Math.round((val < 0 ? 0 : val > 1 ? 1 : val) * 255);\n\t\t\t}\n\t\t\tcomponents = [\n\t\t\t\tconvert(components[0]),\n\t\t\t\tconvert(components[1]),\n\t\t\t\tconvert(components[2])\n\t\t\t];\n\t\t\tif (alpha < 1)\n\t\t\t\tcomponents.push(alpha < 0 ? 0 : alpha);\n\t\t\treturn hex\n\t\t\t\t\t? '#' + ((1 << 24) + (components[0] << 16)\n\t\t\t\t\t\t+ (components[1] << 8)\n\t\t\t\t\t\t+ components[2]).toString(16).slice(1)\n\t\t\t\t\t: (components.length == 4 ? 'rgba(' : 'rgb(')\n\t\t\t\t\t\t+ components.join(',') + ')';\n\t\t},\n\n\t\ttoCanvasStyle: function(ctx, matrix) {\n\t\t\tif (this._canvasStyle)\n\t\t\t\treturn this._canvasStyle;\n\t\t\tif (this._type !== 'gradient')\n\t\t\t\treturn this._canvasStyle = this.toCSS();\n\t\t\tvar components = this._components,\n\t\t\t\tgradient = components[0],\n\t\t\t\tstops = gradient._stops,\n\t\t\t\torigin = components[1],\n\t\t\t\tdestination = components[2],\n\t\t\t\thighlight = components[3],\n\t\t\t\tinverse = matrix && matrix.inverted(),\n\t\t\t\tcanvasGradient;\n\t\t\tif (inverse) {\n\t\t\t\torigin = inverse._transformPoint(origin);\n\t\t\t\tdestination = inverse._transformPoint(destination);\n\t\t\t\tif (highlight)\n\t\t\t\t\thighlight = inverse._transformPoint(highlight);\n\t\t\t}\n\t\t\tif (gradient._radial) {\n\t\t\t\tvar radius = destination.getDistance(origin);\n\t\t\t\tif (highlight) {\n\t\t\t\t\tvar vector = highlight.subtract(origin);\n\t\t\t\t\tif (vector.getLength() > radius)\n\t\t\t\t\t\thighlight = origin.add(vector.normalize(radius - 0.1));\n\t\t\t\t}\n\t\t\t\tvar start = highlight || origin;\n\t\t\t\tcanvasGradient = ctx.createRadialGradient(start.x, start.y,\n\t\t\t\t\t\t0, origin.x, origin.y, radius);\n\t\t\t} else {\n\t\t\t\tcanvasGradient = ctx.createLinearGradient(origin.x, origin.y,\n\t\t\t\t\t\tdestination.x, destination.y);\n\t\t\t}\n\t\t\tfor (var i = 0, l = stops.length; i < l; i++) {\n\t\t\t\tvar stop = stops[i],\n\t\t\t\t\toffset = stop._offset;\n\t\t\t\tcanvasGradient.addColorStop(\n\t\t\t\t\t\toffset == null ? i / (l - 1) : offset,\n\t\t\t\t\t\tstop._color.toCanvasStyle());\n\t\t\t}\n\t\t\treturn this._canvasStyle = canvasGradient;\n\t\t},\n\n\t\ttransform: function(matrix) {\n\t\t\tif (this._type === 'gradient') {\n\t\t\t\tvar components = this._components;\n\t\t\t\tfor (var i = 1, l = components.length; i < l; i++) {\n\t\t\t\t\tvar point = components[i];\n\t\t\t\t\tmatrix._transformPoint(point, point, true);\n\t\t\t\t}\n\t\t\t\tthis._changed();\n\t\t\t}\n\t\t},\n\n\t\tstatics: {\n\t\t\t_types: types,\n\n\t\t\trandom: function() {\n\t\t\t\tvar random = Math.random;\n\t\t\t\treturn new Color(random(), random(), random());\n\t\t\t},\n\n\t\t\t_setOwner: function(color, owner, setter) {\n\t\t\t\tif (color) {\n\t\t\t\t\tif (color._owner && owner && color._owner !== owner) {\n\t\t\t\t\t\tcolor = color.clone();\n\t\t\t\t\t}\n\t\t\t\t\tif (!color._owner ^ !owner) {\n\t\t\t\t\t\tcolor._owner = owner || null;\n\t\t\t\t\t\tcolor._setter = setter || null;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn color;\n\t\t\t}\n\t\t}\n\t});\n},\nnew function() {\n\tvar operators = {\n\t\tadd: function(a, b) {\n\t\t\treturn a + b;\n\t\t},\n\n\t\tsubtract: function(a, b) {\n\t\t\treturn a - b;\n\t\t},\n\n\t\tmultiply: function(a, b) {\n\t\t\treturn a * b;\n\t\t},\n\n\t\tdivide: function(a, b) {\n\t\t\treturn a / b;\n\t\t}\n\t};\n\n\treturn Base.each(operators, function(operator, name) {\n\t\tthis[name] = function(color) {\n\t\t\tcolor = Color.read(arguments);\n\t\t\tvar type = this._type,\n\t\t\t\tcomponents1 = this._components,\n\t\t\t\tcomponents2 = color._convert(type);\n\t\t\tfor (var i = 0, l = components1.length; i < l; i++)\n\t\t\t\tcomponents2[i] = operator(components1[i], components2[i]);\n\t\t\treturn new Color(type, components2,\n\t\t\t\t\tthis._alpha != null\n\t\t\t\t\t\t\t? operator(this._alpha, color.getAlpha())\n\t\t\t\t\t\t\t: null);\n\t\t};\n\t}, {\n\t});\n});\n\nvar Gradient = Base.extend({\n\t_class: 'Gradient',\n\n\tinitialize: function Gradient(stops, radial) {\n\t\tthis._id = UID.get();\n\t\tif (stops && Base.isPlainObject(stops)) {\n\t\t\tthis.set(stops);\n\t\t\tstops = radial = null;\n\t\t}\n\t\tif (this._stops == null) {\n\t\t\tthis.setStops(stops || ['white', 'black']);\n\t\t}\n\t\tif (this._radial == null) {\n\t\t\tthis.setRadial(typeof radial === 'string' && radial === 'radial'\n\t\t\t\t\t|| radial || false);\n\t\t}\n\t},\n\n\t_serialize: function(options, dictionary) {\n\t\treturn dictionary.add(this, function() {\n\t\t\treturn Base.serialize([this._stops, this._radial],\n\t\t\t\t\toptions, true, dictionary);\n\t\t});\n\t},\n\n\t_changed: function() {\n\t\tfor (var i = 0, l = this._owners && this._owners.length; i < l; i++) {\n\t\t\tthis._owners[i]._changed();\n\t\t}\n\t},\n\n\t_addOwner: function(color) {\n\t\tif (!this._owners)\n\t\t\tthis._owners = [];\n\t\tthis._owners.push(color);\n\t},\n\n\t_removeOwner: function(color) {\n\t\tvar index = this._owners ? this._owners.indexOf(color) : -1;\n\t\tif (index != -1) {\n\t\t\tthis._owners.splice(index, 1);\n\t\t\tif (!this._owners.length)\n\t\t\t\tthis._owners = undefined;\n\t\t}\n\t},\n\n\tclone: function() {\n\t\tvar stops = [];\n\t\tfor (var i = 0, l = this._stops.length; i < l; i++) {\n\t\t\tstops[i] = this._stops[i].clone();\n\t\t}\n\t\treturn new Gradient(stops, this._radial);\n\t},\n\n\tgetStops: function() {\n\t\treturn this._stops;\n\t},\n\n\tsetStops: function(stops) {\n\t\tif (stops.length < 2) {\n\t\t\tthrow new Error(\n\t\t\t\t\t'Gradient stop list needs to contain at least two stops.');\n\t\t}\n\t\tvar _stops = this._stops;\n\t\tif (_stops) {\n\t\t\tfor (var i = 0, l = _stops.length; i < l; i++)\n\t\t\t\t_stops[i]._owner = undefined;\n\t\t}\n\t\t_stops = this._stops = GradientStop.readList(stops, 0, { clone: true });\n\t\tfor (var i = 0, l = _stops.length; i < l; i++)\n\t\t\t_stops[i]._owner = this;\n\t\tthis._changed();\n\t},\n\n\tgetRadial: function() {\n\t\treturn this._radial;\n\t},\n\n\tsetRadial: function(radial) {\n\t\tthis._radial = radial;\n\t\tthis._changed();\n\t},\n\n\tequals: function(gradient) {\n\t\tif (gradient === this)\n\t\t\treturn true;\n\t\tif (gradient && this._class === gradient._class) {\n\t\t\tvar stops1 = this._stops,\n\t\t\t\tstops2 = gradient._stops,\n\t\t\t\tlength = stops1.length;\n\t\t\tif (length === stops2.length) {\n\t\t\t\tfor (var i = 0; i < length; i++) {\n\t\t\t\t\tif (!stops1[i].equals(stops2[i]))\n\t\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\t\treturn false;\n\t}\n});\n\nvar GradientStop = Base.extend({\n\t_class: 'GradientStop',\n\n\tinitialize: function GradientStop(arg0, arg1) {\n\t\tvar color = arg0,\n\t\t\toffset = arg1;\n\t\tif (typeof arg0 === 'object' && arg1 === undefined) {\n\t\t\tif (Array.isArray(arg0) && typeof arg0[0] !== 'number') {\n\t\t\t\tcolor = arg0[0];\n\t\t\t\toffset = arg0[1];\n\t\t\t} else if ('color' in arg0 || 'offset' in arg0\n\t\t\t\t\t|| 'rampPoint' in arg0) {\n\t\t\t\tcolor = arg0.color;\n\t\t\t\toffset = arg0.offset || arg0.rampPoint || 0;\n\t\t\t}\n\t\t}\n\t\tthis.setColor(color);\n\t\tthis.setOffset(offset);\n\t},\n\n\tclone: function() {\n\t\treturn new GradientStop(this._color.clone(), this._offset);\n\t},\n\n\t_serialize: function(options, dictionary) {\n\t\tvar color = this._color,\n\t\t\toffset = this._offset;\n\t\treturn Base.serialize(offset == null ? [color] : [color, offset],\n\t\t\t\toptions, true, dictionary);\n\t},\n\n\t_changed: function() {\n\t\tif (this._owner)\n\t\t\tthis._owner._changed(129);\n\t},\n\n\tgetOffset: function() {\n\t\treturn this._offset;\n\t},\n\n\tsetOffset: function(offset) {\n\t\tthis._offset = offset;\n\t\tthis._changed();\n\t},\n\n\tgetRampPoint: '#getOffset',\n\tsetRampPoint: '#setOffset',\n\n\tgetColor: function() {\n\t\treturn this._color;\n\t},\n\n\tsetColor: function() {\n\t\tColor._setOwner(this._color, null);\n\t\tthis._color = Color._setOwner(Color.read(arguments, 0), this,\n\t\t\t\t'setColor');\n\t\tthis._changed();\n\t},\n\n\tequals: function(stop) {\n\t\treturn stop === this || stop && this._class === stop._class\n\t\t\t\t&& this._color.equals(stop._color)\n\t\t\t\t&& this._offset == stop._offset\n\t\t\t\t|| false;\n\t}\n});\n\nvar Style = Base.extend(new function() {\n\tvar itemDefaults = {\n\t\tfillColor: null,\n\t\tfillRule: 'nonzero',\n\t\tstrokeColor: null,\n\t\tstrokeWidth: 1,\n\t\tstrokeCap: 'butt',\n\t\tstrokeJoin: 'miter',\n\t\tstrokeScaling: true,\n\t\tmiterLimit: 10,\n\t\tdashOffset: 0,\n\t\tdashArray: [],\n\t\tshadowColor: null,\n\t\tshadowBlur: 0,\n\t\tshadowOffset: new Point(),\n\t\tselectedColor: null\n\t},\n\tgroupDefaults = Base.set({}, itemDefaults, {\n\t\tfontFamily: 'sans-serif',\n\t\tfontWeight: 'normal',\n\t\tfontSize: 12,\n\t\tleading: null,\n\t\tjustification: 'left'\n\t}),\n\ttextDefaults = Base.set({}, groupDefaults, {\n\t\tfillColor: new Color()\n\t}),\n\tflags = {\n\t\tstrokeWidth: 193,\n\t\tstrokeCap: 193,\n\t\tstrokeJoin: 193,\n\t\tstrokeScaling: 201,\n\t\tmiterLimit: 193,\n\t\tfontFamily: 9,\n\t\tfontWeight: 9,\n\t\tfontSize: 9,\n\t\tfont: 9,\n\t\tleading: 9,\n\t\tjustification: 9\n\t},\n\titem = {\n\t\tbeans: true\n\t},\n\tfields = {\n\t\t_class: 'Style',\n\t\tbeans: true,\n\n\t\tinitialize: function Style(style, _owner, _project) {\n\t\t\tthis._values = {};\n\t\t\tthis._owner = _owner;\n\t\t\tthis._project = _owner && _owner._project || _project\n\t\t\t\t\t|| paper.project;\n\t\t\tthis._defaults = !_owner || _owner instanceof Group ? groupDefaults\n\t\t\t\t\t: _owner instanceof TextItem ? textDefaults\n\t\t\t\t\t: itemDefaults;\n\t\t\tif (style)\n\t\t\t\tthis.set(style);\n\t\t}\n\t};\n\n\tBase.each(groupDefaults, function(value, key) {\n\t\tvar isColor = /Color$/.test(key),\n\t\t\tisPoint = key === 'shadowOffset',\n\t\t\tpart = Base.capitalize(key),\n\t\t\tflag = flags[key],\n\t\t\tset = 'set' + part,\n\t\t\tget = 'get' + part;\n\n\t\tfields[set] = function(value) {\n\t\t\tvar owner = this._owner,\n\t\t\t\tchildren = owner && owner._children,\n\t\t\t\tapplyToChildren = children && children.length > 0\n\t\t\t\t\t&& !(owner instanceof CompoundPath);\n\t\t\tif (applyToChildren) {\n\t\t\t\tfor (var i = 0, l = children.length; i < l; i++)\n\t\t\t\t\tchildren[i]._style[set](value);\n\t\t\t}\n\t\t\tif ((key === 'selectedColor' || !applyToChildren)\n\t\t\t\t\t&& key in this._defaults) {\n\t\t\t\tvar old = this._values[key];\n\t\t\t\tif (old !== value) {\n\t\t\t\t\tif (isColor) {\n\t\t\t\t\t\tif (old) {\n\t\t\t\t\t\t\tColor._setOwner(old, null);\n\t\t\t\t\t\t\told._canvasStyle = null;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif (value && value.constructor === Color) {\n\t\t\t\t\t\t\tvalue = Color._setOwner(value, owner,\n\t\t\t\t\t\t\t\t\tapplyToChildren && set);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tthis._values[key] = value;\n\t\t\t\t\tif (owner)\n\t\t\t\t\t\towner._changed(flag || 129);\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\n\t\tfields[get] = function(_dontMerge) {\n\t\t\tvar owner = this._owner,\n\t\t\t\tchildren = owner && owner._children,\n\t\t\t\tapplyToChildren = children && children.length > 0\n\t\t\t\t\t&& !(owner instanceof CompoundPath),\n\t\t\t\tvalue;\n\t\t\tif (applyToChildren && !_dontMerge) {\n\t\t\t\tfor (var i = 0, l = children.length; i < l; i++) {\n\t\t\t\t\tvar childValue = children[i]._style[get]();\n\t\t\t\t\tif (!i) {\n\t\t\t\t\t\tvalue = childValue;\n\t\t\t\t\t} else if (!Base.equals(value, childValue)) {\n\t\t\t\t\t\treturn undefined;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} else if (key in this._defaults) {\n\t\t\t\tvar value = this._values[key];\n\t\t\t\tif (value === undefined) {\n\t\t\t\t\tvalue = this._defaults[key];\n\t\t\t\t\tif (value && value.clone) {\n\t\t\t\t\t\tvalue = value.clone();\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\tvar ctor = isColor ? Color : isPoint ? Point : null;\n\t\t\t\t\tif (ctor && !(value && value.constructor === ctor)) {\n\t\t\t\t\t\tthis._values[key] = value = ctor.read([value], 0,\n\t\t\t\t\t\t\t\t{ readNull: true, clone: true });\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (value && isColor) {\n\t\t\t\tvalue = Color._setOwner(value, owner, applyToChildren && set);\n\t\t\t}\n\t\t\treturn value;\n\t\t};\n\n\t\titem[get] = function(_dontMerge) {\n\t\t\treturn this._style[get](_dontMerge);\n\t\t};\n\n\t\titem[set] = function(value) {\n\t\t\tthis._style[set](value);\n\t\t};\n\t});\n\n\tBase.each({\n\t\tFont: 'FontFamily',\n\t\tWindingRule: 'FillRule'\n\t}, function(value, key) {\n\t\tvar get = 'get' + key,\n\t\t\tset = 'set' + key;\n\t\tfields[get] = item[get] = '#get' + value;\n\t\tfields[set] = item[set] = '#set' + value;\n\t});\n\n\tItem.inject(item);\n\treturn fields;\n}, {\n\tset: function(style) {\n\t\tvar isStyle = style instanceof Style,\n\t\t\tvalues = isStyle ? style._values : style;\n\t\tif (values) {\n\t\t\tfor (var key in values) {\n\t\t\t\tif (key in this._defaults) {\n\t\t\t\t\tvar value = values[key];\n\t\t\t\t\tthis[key] = value && isStyle && value.clone\n\t\t\t\t\t\t\t? value.clone() : value;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\tequals: function(style) {\n\t\tfunction compare(style1, style2, secondary) {\n\t\t\tvar values1 = style1._values,\n\t\t\t\tvalues2 = style2._values,\n\t\t\t\tdefaults2 = style2._defaults;\n\t\t\tfor (var key in values1) {\n\t\t\t\tvar value1 = values1[key],\n\t\t\t\t\tvalue2 = values2[key];\n\t\t\t\tif (!(secondary && key in values2) && !Base.equals(value1,\n\t\t\t\t\t\tvalue2 === undefined ? defaults2[key] : value2))\n\t\t\t\t\treturn false;\n\t\t\t}\n\t\t\treturn true;\n\t\t}\n\n\t\treturn style === this || style && this._class === style._class\n\t\t\t\t&& compare(this, style)\n\t\t\t\t&& compare(style, this, true)\n\t\t\t\t|| false;\n\t},\n\n\t_dispose: function() {\n\t\tvar color;\n\t\tcolor = this.getFillColor();\n\t\tif (color) color._canvasStyle = null;\n\t\tcolor = this.getStrokeColor();\n\t\tif (color) color._canvasStyle = null;\n\t\tcolor = this.getShadowColor();\n\t\tif (color) color._canvasStyle = null;\n\t},\n\n\thasFill: function() {\n\t\tvar color = this.getFillColor();\n\t\treturn !!color && color.alpha > 0;\n\t},\n\n\thasStroke: function() {\n\t\tvar color = this.getStrokeColor();\n\t\treturn !!color && color.alpha > 0 && this.getStrokeWidth() > 0;\n\t},\n\n\thasShadow: function() {\n\t\tvar color = this.getShadowColor();\n\t\treturn !!color && color.alpha > 0 && (this.getShadowBlur() > 0\n\t\t\t\t|| !this.getShadowOffset().isZero());\n\t},\n\n\tgetView: function() {\n\t\treturn this._project._view;\n\t},\n\n\tgetFontStyle: function() {\n\t\tvar fontSize = this.getFontSize();\n\t\treturn this.getFontWeight()\n\t\t\t\t+ ' ' + fontSize + (/[a-z]/i.test(fontSize + '') ? ' ' : 'px ')\n\t\t\t\t+ this.getFontFamily();\n\t},\n\n\tgetFont: '#getFontFamily',\n\tsetFont: '#setFontFamily',\n\n\tgetLeading: function getLeading() {\n\t\tvar leading = getLeading.base.call(this),\n\t\t\tfontSize = this.getFontSize();\n\t\tif (/pt|em|%|px/.test(fontSize))\n\t\t\tfontSize = this.getView().getPixelSize(fontSize);\n\t\treturn leading != null ? leading : fontSize * 1.2;\n\t}\n\n});\n\nvar DomElement = new function() {\n\tfunction handlePrefix(el, name, set, value) {\n\t\tvar prefixes = ['', 'webkit', 'moz', 'Moz', 'ms', 'o'],\n\t\t\tsuffix = name[0].toUpperCase() + name.substring(1);\n\t\tfor (var i = 0; i < 6; i++) {\n\t\t\tvar prefix = prefixes[i],\n\t\t\t\tkey = prefix ? prefix + suffix : name;\n\t\t\tif (key in el) {\n\t\t\t\tif (set) {\n\t\t\t\t\tel[key] = value;\n\t\t\t\t} else {\n\t\t\t\t\treturn el[key];\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t}\n\n\treturn {\n\t\tgetStyles: function(el) {\n\t\t\tvar doc = el && el.nodeType !== 9 ? el.ownerDocument : el,\n\t\t\t\tview = doc && doc.defaultView;\n\t\t\treturn view && view.getComputedStyle(el, '');\n\t\t},\n\n\t\tgetBounds: function(el, viewport) {\n\t\t\tvar doc = el.ownerDocument,\n\t\t\t\tbody = doc.body,\n\t\t\t\thtml = doc.documentElement,\n\t\t\t\trect;\n\t\t\ttry {\n\t\t\t\trect = el.getBoundingClientRect();\n\t\t\t} catch (e) {\n\t\t\t\trect = { left: 0, top: 0, width: 0, height: 0 };\n\t\t\t}\n\t\t\tvar x = rect.left - (html.clientLeft || body.clientLeft || 0),\n\t\t\t\ty = rect.top - (html.clientTop || body.clientTop || 0);\n\t\t\tif (!viewport) {\n\t\t\t\tvar view = doc.defaultView;\n\t\t\t\tx += view.pageXOffset || html.scrollLeft || body.scrollLeft;\n\t\t\t\ty += view.pageYOffset || html.scrollTop || body.scrollTop;\n\t\t\t}\n\t\t\treturn new Rectangle(x, y, rect.width, rect.height);\n\t\t},\n\n\t\tgetViewportBounds: function(el) {\n\t\t\tvar doc = el.ownerDocument,\n\t\t\t\tview = doc.defaultView,\n\t\t\t\thtml = doc.documentElement;\n\t\t\treturn new Rectangle(0, 0,\n\t\t\t\tview.innerWidth || html.clientWidth,\n\t\t\t\tview.innerHeight || html.clientHeight\n\t\t\t);\n\t\t},\n\n\t\tgetOffset: function(el, viewport) {\n\t\t\treturn DomElement.getBounds(el, viewport).getPoint();\n\t\t},\n\n\t\tgetSize: function(el) {\n\t\t\treturn DomElement.getBounds(el, true).getSize();\n\t\t},\n\n\t\tisInvisible: function(el) {\n\t\t\treturn DomElement.getSize(el).equals(new Size(0, 0));\n\t\t},\n\n\t\tisInView: function(el) {\n\t\t\treturn !DomElement.isInvisible(el)\n\t\t\t\t\t&& DomElement.getViewportBounds(el).intersects(\n\t\t\t\t\t\tDomElement.getBounds(el, true));\n\t\t},\n\n\t\tisInserted: function(el) {\n\t\t\treturn document.body.contains(el);\n\t\t},\n\n\t\tgetPrefixed: function(el, name) {\n\t\t\treturn el && handlePrefix(el, name);\n\t\t},\n\n\t\tsetPrefixed: function(el, name, value) {\n\t\t\tif (typeof name === 'object') {\n\t\t\t\tfor (var key in name)\n\t\t\t\t\thandlePrefix(el, key, true, name[key]);\n\t\t\t} else {\n\t\t\t\thandlePrefix(el, name, true, value);\n\t\t\t}\n\t\t}\n\t};\n};\n\nvar DomEvent = {\n\tadd: function(el, events) {\n\t\tif (el) {\n\t\t\tfor (var type in events) {\n\t\t\t\tvar func = events[type],\n\t\t\t\t\tparts = type.split(/[\\s,]+/g);\n\t\t\t\tfor (var i = 0, l = parts.length; i < l; i++) {\n\t\t\t\t\tvar name = parts[i];\n\t\t\t\t\tvar options = (\n\t\t\t\t\t\tel === document\n\t\t\t\t\t\t&& (name === 'touchstart' || name === 'touchmove')\n\t\t\t\t\t) ? { passive: false } : false;\n\t\t\t\t\tel.addEventListener(name, func, options);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\tremove: function(el, events) {\n\t\tif (el) {\n\t\t\tfor (var type in events) {\n\t\t\t\tvar func = events[type],\n\t\t\t\t\tparts = type.split(/[\\s,]+/g);\n\t\t\t\tfor (var i = 0, l = parts.length; i < l; i++)\n\t\t\t\t\tel.removeEventListener(parts[i], func, false);\n\t\t\t}\n\t\t}\n\t},\n\n\tgetPoint: function(event) {\n\t\tvar pos = event.targetTouches\n\t\t\t\t? event.targetTouches.length\n\t\t\t\t\t? event.targetTouches[0]\n\t\t\t\t\t: event.changedTouches[0]\n\t\t\t\t: event;\n\t\treturn new Point(\n\t\t\tpos.pageX || pos.clientX + document.documentElement.scrollLeft,\n\t\t\tpos.pageY || pos.clientY + document.documentElement.scrollTop\n\t\t);\n\t},\n\n\tgetTarget: function(event) {\n\t\treturn event.target || event.srcElement;\n\t},\n\n\tgetRelatedTarget: function(event) {\n\t\treturn event.relatedTarget || event.toElement;\n\t},\n\n\tgetOffset: function(event, target) {\n\t\treturn DomEvent.getPoint(event).subtract(DomElement.getOffset(\n\t\t\t\ttarget || DomEvent.getTarget(event)));\n\t}\n};\n\nDomEvent.requestAnimationFrame = new function() {\n\tvar nativeRequest = DomElement.getPrefixed(window, 'requestAnimationFrame'),\n\t\trequested = false,\n\t\tcallbacks = [],\n\t\ttimer;\n\n\tfunction handleCallbacks() {\n\t\tvar functions = callbacks;\n\t\tcallbacks = [];\n\t\tfor (var i = 0, l = functions.length; i < l; i++)\n\t\t\tfunctions[i]();\n\t\trequested = nativeRequest && callbacks.length;\n\t\tif (requested)\n\t\t\tnativeRequest(handleCallbacks);\n\t}\n\n\treturn function(callback) {\n\t\tcallbacks.push(callback);\n\t\tif (nativeRequest) {\n\t\t\tif (!requested) {\n\t\t\t\tnativeRequest(handleCallbacks);\n\t\t\t\trequested = true;\n\t\t\t}\n\t\t} else if (!timer) {\n\t\t\ttimer = setInterval(handleCallbacks, 1000 / 60);\n\t\t}\n\t};\n};\n\nvar View = Base.extend(Emitter, {\n\t_class: 'View',\n\n\tinitialize: function View(project, element) {\n\n\t\tfunction getSize(name) {\n\t\t\treturn element[name] || parseInt(element.getAttribute(name), 10);\n\t\t}\n\n\t\tfunction getCanvasSize() {\n\t\t\tvar size = DomElement.getSize(element);\n\t\t\treturn size.isNaN() || size.isZero()\n\t\t\t\t\t? new Size(getSize('width'), getSize('height'))\n\t\t\t\t\t: size;\n\t\t}\n\n\t\tvar size;\n\t\tif (window && element) {\n\t\t\tthis._id = element.getAttribute('id');\n\t\t\tif (this._id == null)\n\t\t\t\telement.setAttribute('id', this._id = 'paper-view-' + View._id++);\n\t\t\tDomEvent.add(element, this._viewEvents);\n\t\t\tvar none = 'none';\n\t\t\tDomElement.setPrefixed(element.style, {\n\t\t\t\tuserDrag: none,\n\t\t\t\tuserSelect: none,\n\t\t\t\ttouchCallout: none,\n\t\t\t\tcontentZooming: none,\n\t\t\t\ttapHighlightColor: 'rgba(0,0,0,0)'\n\t\t\t});\n\n\t\t\tif (PaperScope.hasAttribute(element, 'resize')) {\n\t\t\t\tvar that = this;\n\t\t\t\tDomEvent.add(window, this._windowEvents = {\n\t\t\t\t\tresize: function() {\n\t\t\t\t\t\tthat.setViewSize(getCanvasSize());\n\t\t\t\t\t}\n\t\t\t\t});\n\t\t\t}\n\n\t\t\tsize = getCanvasSize();\n\n\t\t\tif (PaperScope.hasAttribute(element, 'stats')\n\t\t\t\t\t&& typeof Stats !== 'undefined') {\n\t\t\t\tthis._stats = new Stats();\n\t\t\t\tvar stats = this._stats.domElement,\n\t\t\t\t\tstyle = stats.style,\n\t\t\t\t\toffset = DomElement.getOffset(element);\n\t\t\t\tstyle.position = 'absolute';\n\t\t\t\tstyle.left = offset.x + 'px';\n\t\t\t\tstyle.top = offset.y + 'px';\n\t\t\t\tdocument.body.appendChild(stats);\n\t\t\t}\n\t\t} else {\n\t\t\tsize = new Size(element);\n\t\t\telement = null;\n\t\t}\n\t\tthis._project = project;\n\t\tthis._scope = project._scope;\n\t\tthis._element = element;\n\t\tif (!this._pixelRatio)\n\t\t\tthis._pixelRatio = window && window.devicePixelRatio || 1;\n\t\tthis._setElementSize(size.width, size.height);\n\t\tthis._viewSize = size;\n\t\tView._views.push(this);\n\t\tView._viewsById[this._id] = this;\n\t\t(this._matrix = new Matrix())._owner = this;\n\t\tif (!View._focused)\n\t\t\tView._focused = this;\n\t\tthis._frameItems = {};\n\t\tthis._frameItemCount = 0;\n\t\tthis._itemEvents = { native: {}, virtual: {} };\n\t\tthis._autoUpdate = !paper.agent.node;\n\t\tthis._needsUpdate = false;\n\t},\n\n\tremove: function() {\n\t\tif (!this._project)\n\t\t\treturn false;\n\t\tif (View._focused === this)\n\t\t\tView._focused = null;\n\t\tView._views.splice(View._views.indexOf(this), 1);\n\t\tdelete View._viewsById[this._id];\n\t\tvar project = this._project;\n\t\tif (project._view === this)\n\t\t\tproject._view = null;\n\t\tDomEvent.remove(this._element, this._viewEvents);\n\t\tDomEvent.remove(window, this._windowEvents);\n\t\tthis._element = this._project = null;\n\t\tthis.off('frame');\n\t\tthis._animate = false;\n\t\tthis._frameItems = {};\n\t\treturn true;\n\t},\n\n\t_events: Base.each(\n\t\tItem._itemHandlers.concat(['onResize', 'onKeyDown', 'onKeyUp']),\n\t\tfunction(name) {\n\t\t\tthis[name] = {};\n\t\t}, {\n\t\t\tonFrame: {\n\t\t\t\tinstall: function() {\n\t\t\t\t\tthis.play();\n\t\t\t\t},\n\n\t\t\t\tuninstall: function() {\n\t\t\t\t\tthis.pause();\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t),\n\n\t_animate: false,\n\t_time: 0,\n\t_count: 0,\n\n\tgetAutoUpdate: function() {\n\t\treturn this._autoUpdate;\n\t},\n\n\tsetAutoUpdate: function(autoUpdate) {\n\t\tthis._autoUpdate = autoUpdate;\n\t\tif (autoUpdate)\n\t\t\tthis.requestUpdate();\n\t},\n\n\tupdate: function() {\n\t},\n\n\tdraw: function() {\n\t\tthis.update();\n\t},\n\n\trequestUpdate: function() {\n\t\tif (!this._requested) {\n\t\t\tvar that = this;\n\t\t\tDomEvent.requestAnimationFrame(function() {\n\t\t\t\tthat._requested = false;\n\t\t\t\tif (that._animate) {\n\t\t\t\t\tthat.requestUpdate();\n\t\t\t\t\tvar element = that._element;\n\t\t\t\t\tif ((!DomElement.getPrefixed(document, 'hidden')\n\t\t\t\t\t\t\t|| PaperScope.getAttribute(element, 'keepalive')\n\t\t\t\t\t\t\t\t=== 'true') && DomElement.isInView(element)) {\n\t\t\t\t\t\tthat._handleFrame();\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tif (that._autoUpdate)\n\t\t\t\t\tthat.update();\n\t\t\t});\n\t\t\tthis._requested = true;\n\t\t}\n\t},\n\n\tplay: function() {\n\t\tthis._animate = true;\n\t\tthis.requestUpdate();\n\t},\n\n\tpause: function() {\n\t\tthis._animate = false;\n\t},\n\n\t_handleFrame: function() {\n\t\tpaper = this._scope;\n\t\tvar now = Date.now() / 1000,\n\t\t\tdelta = this._last ? now - this._last : 0;\n\t\tthis._last = now;\n\t\tthis.emit('frame', new Base({\n\t\t\tdelta: delta,\n\t\t\ttime: this._time += delta,\n\t\t\tcount: this._count++\n\t\t}));\n\t\tif (this._stats)\n\t\t\tthis._stats.update();\n\t},\n\n\t_animateItem: function(item, animate) {\n\t\tvar items = this._frameItems;\n\t\tif (animate) {\n\t\t\titems[item._id] = {\n\t\t\t\titem: item,\n\t\t\t\ttime: 0,\n\t\t\t\tcount: 0\n\t\t\t};\n\t\t\tif (++this._frameItemCount === 1)\n\t\t\t\tthis.on('frame', this._handleFrameItems);\n\t\t} else {\n\t\t\tdelete items[item._id];\n\t\t\tif (--this._frameItemCount === 0) {\n\t\t\t\tthis.off('frame', this._handleFrameItems);\n\t\t\t}\n\t\t}\n\t},\n\n\t_handleFrameItems: function(event) {\n\t\tfor (var i in this._frameItems) {\n\t\t\tvar entry = this._frameItems[i];\n\t\t\tentry.item.emit('frame', new Base(event, {\n\t\t\t\ttime: entry.time += event.delta,\n\t\t\t\tcount: entry.count++\n\t\t\t}));\n\t\t}\n\t},\n\n\t_changed: function() {\n\t\tthis._project._changed(4097);\n\t\tthis._bounds = this._decomposed = undefined;\n\t},\n\n\tgetElement: function() {\n\t\treturn this._element;\n\t},\n\n\tgetPixelRatio: function() {\n\t\treturn this._pixelRatio;\n\t},\n\n\tgetResolution: function() {\n\t\treturn this._pixelRatio * 72;\n\t},\n\n\tgetViewSize: function() {\n\t\tvar size = this._viewSize;\n\t\treturn new LinkedSize(size.width, size.height, this, 'setViewSize');\n\t},\n\n\tsetViewSize: function() {\n\t\tvar size = Size.read(arguments),\n\t\t\tdelta = size.subtract(this._viewSize);\n\t\tif (delta.isZero())\n\t\t\treturn;\n\t\tthis._setElementSize(size.width, size.height);\n\t\tthis._viewSize.set(size);\n\t\tthis._changed();\n\t\tthis.emit('resize', { size: size, delta: delta });\n\t\tif (this._autoUpdate) {\n\t\t\tthis.update();\n\t\t}\n\t},\n\n\t_setElementSize: function(width, height) {\n\t\tvar element = this._element;\n\t\tif (element) {\n\t\t\tif (element.width !== width)\n\t\t\t\telement.width = width;\n\t\t\tif (element.height !== height)\n\t\t\t\telement.height = height;\n\t\t}\n\t},\n\n\tgetBounds: function() {\n\t\tif (!this._bounds)\n\t\t\tthis._bounds = this._matrix.inverted()._transformBounds(\n\t\t\t\t\tnew Rectangle(new Point(), this._viewSize));\n\t\treturn this._bounds;\n\t},\n\n\tgetSize: function() {\n\t\treturn this.getBounds().getSize();\n\t},\n\n\tisVisible: function() {\n\t\treturn DomElement.isInView(this._element);\n\t},\n\n\tisInserted: function() {\n\t\treturn DomElement.isInserted(this._element);\n\t},\n\n\tgetPixelSize: function(size) {\n\t\tvar element = this._element,\n\t\t\tpixels;\n\t\tif (element) {\n\t\t\tvar parent = element.parentNode,\n\t\t\t\ttemp = document.createElement('div');\n\t\t\ttemp.style.fontSize = size;\n\t\t\tparent.appendChild(temp);\n\t\t\tpixels = parseFloat(DomElement.getStyles(temp).fontSize);\n\t\t\tparent.removeChild(temp);\n\t\t} else {\n\t\t\tpixels = parseFloat(pixels);\n\t\t}\n\t\treturn pixels;\n\t},\n\n\tgetTextWidth: function(font, lines) {\n\t\treturn 0;\n\t}\n}, Base.each(['rotate', 'scale', 'shear', 'skew'], function(key) {\n\tvar rotate = key === 'rotate';\n\tthis[key] = function() {\n\t\tvar args = arguments,\n\t\t\tvalue = (rotate ? Base : Point).read(args),\n\t\t\tcenter = Point.read(args, 0, { readNull: true });\n\t\treturn this.transform(new Matrix()[key](value,\n\t\t\t\tcenter || this.getCenter(true)));\n\t};\n}, {\n\t_decompose: function() {\n\t\treturn this._decomposed || (this._decomposed = this._matrix.decompose());\n\t},\n\n\ttranslate: function() {\n\t\tvar mx = new Matrix();\n\t\treturn this.transform(mx.translate.apply(mx, arguments));\n\t},\n\n\tgetCenter: function() {\n\t\treturn this.getBounds().getCenter();\n\t},\n\n\tsetCenter: function() {\n\t\tvar center = Point.read(arguments);\n\t\tthis.translate(this.getCenter().subtract(center));\n\t},\n\n\tgetZoom: function() {\n\t\tvar scaling = this._decompose().scaling;\n\t\treturn (scaling.x + scaling.y) / 2;\n\t},\n\n\tsetZoom: function(zoom) {\n\t\tthis.transform(new Matrix().scale(zoom / this.getZoom(),\n\t\t\tthis.getCenter()));\n\t},\n\n\tgetRotation: function() {\n\t\treturn this._decompose().rotation;\n\t},\n\n\tsetRotation: function(rotation) {\n\t\tvar current = this.getRotation();\n\t\tif (current != null && rotation != null) {\n\t\t\tthis.rotate(rotation - current);\n\t\t}\n\t},\n\n\tgetScaling: function() {\n\t\tvar scaling = this._decompose().scaling;\n\t\treturn new LinkedPoint(scaling.x, scaling.y, this, 'setScaling');\n\t},\n\n\tsetScaling: function() {\n\t\tvar current = this.getScaling(),\n\t\t\tscaling = Point.read(arguments, 0, { clone: true, readNull: true });\n\t\tif (current && scaling) {\n\t\t\tthis.scale(scaling.x / current.x, scaling.y / current.y);\n\t\t}\n\t},\n\n\tgetMatrix: function() {\n\t\treturn this._matrix;\n\t},\n\n\tsetMatrix: function() {\n\t\tvar matrix = this._matrix;\n\t\tmatrix.set.apply(matrix, arguments);\n\t},\n\n\ttransform: function(matrix) {\n\t\tthis._matrix.append(matrix);\n\t},\n\n\tscrollBy: function() {\n\t\tthis.translate(Point.read(arguments).negate());\n\t}\n}), {\n\n\tprojectToView: function() {\n\t\treturn this._matrix._transformPoint(Point.read(arguments));\n\t},\n\n\tviewToProject: function() {\n\t\treturn this._matrix._inverseTransform(Point.read(arguments));\n\t},\n\n\tgetEventPoint: function(event) {\n\t\treturn this.viewToProject(DomEvent.getOffset(event, this._element));\n\t},\n\n}, {\n\tstatics: {\n\t\t_views: [],\n\t\t_viewsById: {},\n\t\t_id: 0,\n\n\t\tcreate: function(project, element) {\n\t\t\tif (document && typeof element === 'string')\n\t\t\t\telement = document.getElementById(element);\n\t\t\tvar ctor = window ? CanvasView : View;\n\t\t\treturn new ctor(project, element);\n\t\t}\n\t}\n},\nnew function() {\n\tif (!window)\n\t\treturn;\n\tvar prevFocus,\n\t\ttempFocus,\n\t\tdragging = false,\n\t\tmouseDown = false;\n\n\tfunction getView(event) {\n\t\tvar target = DomEvent.getTarget(event);\n\t\treturn target.getAttribute && View._viewsById[\n\t\t\t\ttarget.getAttribute('id')];\n\t}\n\n\tfunction updateFocus() {\n\t\tvar view = View._focused;\n\t\tif (!view || !view.isVisible()) {\n\t\t\tfor (var i = 0, l = View._views.length; i < l; i++) {\n\t\t\t\tif ((view = View._views[i]).isVisible()) {\n\t\t\t\t\tView._focused = tempFocus = view;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\tfunction handleMouseMove(view, event, point) {\n\t\tview._handleMouseEvent('mousemove', event, point);\n\t}\n\n\tvar navigator = window.navigator,\n\t\tmousedown, mousemove, mouseup;\n\tif (navigator.pointerEnabled || navigator.msPointerEnabled) {\n\t\tmousedown = 'pointerdown MSPointerDown';\n\t\tmousemove = 'pointermove MSPointerMove';\n\t\tmouseup = 'pointerup pointercancel MSPointerUp MSPointerCancel';\n\t} else {\n\t\tmousedown = 'touchstart';\n\t\tmousemove = 'touchmove';\n\t\tmouseup = 'touchend touchcancel';\n\t\tif (!('ontouchstart' in window && navigator.userAgent.match(\n\t\t\t\t/mobile|tablet|ip(ad|hone|od)|android|silk/i))) {\n\t\t\tmousedown += ' mousedown';\n\t\t\tmousemove += ' mousemove';\n\t\t\tmouseup += ' mouseup';\n\t\t}\n\t}\n\n\tvar viewEvents = {},\n\t\tdocEvents = {\n\t\t\tmouseout: function(event) {\n\t\t\t\tvar view = View._focused,\n\t\t\t\t\ttarget = DomEvent.getRelatedTarget(event);\n\t\t\t\tif (view && (!target || target.nodeName === 'HTML')) {\n\t\t\t\t\tvar offset = DomEvent.getOffset(event, view._element),\n\t\t\t\t\t\tx = offset.x,\n\t\t\t\t\t\tabs = Math.abs,\n\t\t\t\t\t\tax = abs(x),\n\t\t\t\t\t\tmax = 1 << 25,\n\t\t\t\t\t\tdiff = ax - max;\n\t\t\t\t\toffset.x = abs(diff) < ax ? diff * (x < 0 ? -1 : 1) : x;\n\t\t\t\t\thandleMouseMove(view, event, view.viewToProject(offset));\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tscroll: updateFocus\n\t\t};\n\n\tviewEvents[mousedown] = function(event) {\n\t\tvar view = View._focused = getView(event);\n\t\tif (!dragging) {\n\t\t\tdragging = true;\n\t\t\tview._handleMouseEvent('mousedown', event);\n\t\t}\n\t};\n\n\tdocEvents[mousemove] = function(event) {\n\t\tvar view = View._focused;\n\t\tif (!mouseDown) {\n\t\t\tvar target = getView(event);\n\t\t\tif (target) {\n\t\t\t\tif (view !== target) {\n\t\t\t\t\tif (view)\n\t\t\t\t\t\thandleMouseMove(view, event);\n\t\t\t\t\tif (!prevFocus)\n\t\t\t\t\t\tprevFocus = view;\n\t\t\t\t\tview = View._focused = tempFocus = target;\n\t\t\t\t}\n\t\t\t} else if (tempFocus && tempFocus === view) {\n\t\t\t\tif (prevFocus && !prevFocus.isInserted())\n\t\t\t\t\tprevFocus = null;\n\t\t\t\tview = View._focused = prevFocus;\n\t\t\t\tprevFocus = null;\n\t\t\t\tupdateFocus();\n\t\t\t}\n\t\t}\n\t\tif (view)\n\t\t\thandleMouseMove(view, event);\n\t};\n\n\tdocEvents[mousedown] = function() {\n\t\tmouseDown = true;\n\t};\n\n\tdocEvents[mouseup] = function(event) {\n\t\tvar view = View._focused;\n\t\tif (view && dragging)\n\t\t\tview._handleMouseEvent('mouseup', event);\n\t\tmouseDown = dragging = false;\n\t};\n\n\tDomEvent.add(document, docEvents);\n\n\tDomEvent.add(window, {\n\t\tload: updateFocus\n\t});\n\n\tvar called = false,\n\t\tprevented = false,\n\t\tfallbacks = {\n\t\t\tdoubleclick: 'click',\n\t\t\tmousedrag: 'mousemove'\n\t\t},\n\t\twasInView = false,\n\t\toverView,\n\t\tdownPoint,\n\t\tlastPoint,\n\t\tdownItem,\n\t\toverItem,\n\t\tdragItem,\n\t\tclickItem,\n\t\tclickTime,\n\t\tdblClick;\n\n\tfunction emitMouseEvent(obj, target, type, event, point, prevPoint,\n\t\t\tstopItem) {\n\t\tvar stopped = false,\n\t\t\tmouseEvent;\n\n\t\tfunction emit(obj, type) {\n\t\t\tif (obj.responds(type)) {\n\t\t\t\tif (!mouseEvent) {\n\t\t\t\t\tmouseEvent = new MouseEvent(type, event, point,\n\t\t\t\t\t\t\ttarget || obj,\n\t\t\t\t\t\t\tprevPoint ? point.subtract(prevPoint) : null);\n\t\t\t\t}\n\t\t\t\tif (obj.emit(type, mouseEvent)) {\n\t\t\t\t\tcalled = true;\n\t\t\t\t\tif (mouseEvent.prevented)\n\t\t\t\t\t\tprevented = true;\n\t\t\t\t\tif (mouseEvent.stopped)\n\t\t\t\t\t\treturn stopped = true;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tvar fallback = fallbacks[type];\n\t\t\t\tif (fallback)\n\t\t\t\t\treturn emit(obj, fallback);\n\t\t\t}\n\t\t}\n\n\t\twhile (obj && obj !== stopItem) {\n\t\t\tif (emit(obj, type))\n\t\t\t\tbreak;\n\t\t\tobj = obj._parent;\n\t\t}\n\t\treturn stopped;\n\t}\n\n\tfunction emitMouseEvents(view, hitItem, type, event, point, prevPoint) {\n\t\tview._project.removeOn(type);\n\t\tprevented = called = false;\n\t\treturn (dragItem && emitMouseEvent(dragItem, null, type, event,\n\t\t\t\t\tpoint, prevPoint)\n\t\t\t|| hitItem && hitItem !== dragItem\n\t\t\t\t&& !hitItem.isDescendant(dragItem)\n\t\t\t\t&& emitMouseEvent(hitItem, null, type === 'mousedrag' ?\n\t\t\t\t\t'mousemove' : type, event, point, prevPoint, dragItem)\n\t\t\t|| emitMouseEvent(view, dragItem || hitItem || view, type, event,\n\t\t\t\t\tpoint, prevPoint));\n\t}\n\n\tvar itemEventsMap = {\n\t\tmousedown: {\n\t\t\tmousedown: 1,\n\t\t\tmousedrag: 1,\n\t\t\tclick: 1,\n\t\t\tdoubleclick: 1\n\t\t},\n\t\tmouseup: {\n\t\t\tmouseup: 1,\n\t\t\tmousedrag: 1,\n\t\t\tclick: 1,\n\t\t\tdoubleclick: 1\n\t\t},\n\t\tmousemove: {\n\t\t\tmousedrag: 1,\n\t\t\tmousemove: 1,\n\t\t\tmouseenter: 1,\n\t\t\tmouseleave: 1\n\t\t}\n\t};\n\n\treturn {\n\t\t_viewEvents: viewEvents,\n\n\t\t_handleMouseEvent: function(type, event, point) {\n\t\t\tvar itemEvents = this._itemEvents,\n\t\t\t\thitItems = itemEvents.native[type],\n\t\t\t\tnativeMove = type === 'mousemove',\n\t\t\t\ttool = this._scope.tool,\n\t\t\t\tview = this;\n\n\t\t\tfunction responds(type) {\n\t\t\t\treturn itemEvents.virtual[type] || view.responds(type)\n\t\t\t\t\t\t|| tool && tool.responds(type);\n\t\t\t}\n\n\t\t\tif (nativeMove && dragging && responds('mousedrag'))\n\t\t\t\ttype = 'mousedrag';\n\t\t\tif (!point)\n\t\t\t\tpoint = this.getEventPoint(event);\n\n\t\t\tvar inView = this.getBounds().contains(point),\n\t\t\t\thit = hitItems && inView && view._project.hitTest(point, {\n\t\t\t\t\ttolerance: 0,\n\t\t\t\t\tfill: true,\n\t\t\t\t\tstroke: true\n\t\t\t\t}),\n\t\t\t\thitItem = hit && hit.item || null,\n\t\t\t\thandle = false,\n\t\t\t\tmouse = {};\n\t\t\tmouse[type.substr(5)] = true;\n\n\t\t\tif (hitItems && hitItem !== overItem) {\n\t\t\t\tif (overItem) {\n\t\t\t\t\temitMouseEvent(overItem, null, 'mouseleave', event, point);\n\t\t\t\t}\n\t\t\t\tif (hitItem) {\n\t\t\t\t\temitMouseEvent(hitItem, null, 'mouseenter', event, point);\n\t\t\t\t}\n\t\t\t\toverItem = hitItem;\n\t\t\t}\n\t\t\tif (wasInView ^ inView) {\n\t\t\t\temitMouseEvent(this, null, inView ? 'mouseenter' : 'mouseleave',\n\t\t\t\t\t\tevent, point);\n\t\t\t\toverView = inView ? this : null;\n\t\t\t\thandle = true;\n\t\t\t}\n\t\t\tif ((inView || mouse.drag) && !point.equals(lastPoint)) {\n\t\t\t\temitMouseEvents(this, hitItem, nativeMove ? type : 'mousemove',\n\t\t\t\t\t\tevent, point, lastPoint);\n\t\t\t\thandle = true;\n\t\t\t}\n\t\t\twasInView = inView;\n\t\t\tif (mouse.down && inView || mouse.up && downPoint) {\n\t\t\t\temitMouseEvents(this, hitItem, type, event, point, downPoint);\n\t\t\t\tif (mouse.down) {\n\t\t\t\t\tdblClick = hitItem === clickItem\n\t\t\t\t\t\t&& (Date.now() - clickTime < 300);\n\t\t\t\t\tdownItem = clickItem = hitItem;\n\t\t\t\t\tif (!prevented && hitItem) {\n\t\t\t\t\t\tvar item = hitItem;\n\t\t\t\t\t\twhile (item && !item.responds('mousedrag'))\n\t\t\t\t\t\t\titem = item._parent;\n\t\t\t\t\t\tif (item)\n\t\t\t\t\t\t\tdragItem = hitItem;\n\t\t\t\t\t}\n\t\t\t\t\tdownPoint = point;\n\t\t\t\t} else if (mouse.up) {\n\t\t\t\t\tif (!prevented && hitItem === downItem) {\n\t\t\t\t\t\tclickTime = Date.now();\n\t\t\t\t\t\temitMouseEvents(this, hitItem, dblClick ? 'doubleclick'\n\t\t\t\t\t\t\t\t: 'click', event, point, downPoint);\n\t\t\t\t\t\tdblClick = false;\n\t\t\t\t\t}\n\t\t\t\t\tdownItem = dragItem = null;\n\t\t\t\t}\n\t\t\t\twasInView = false;\n\t\t\t\thandle = true;\n\t\t\t}\n\t\t\tlastPoint = point;\n\t\t\tif (handle && tool) {\n\t\t\t\tcalled = tool._handleMouseEvent(type, event, point, mouse)\n\t\t\t\t\t|| called;\n\t\t\t}\n\n\t\t\tif (\n\t\t\t\tevent.cancelable !== false\n\t\t\t\t&& (called && !mouse.move || mouse.down && responds('mouseup'))\n\t\t\t) {\n\t\t\t\tevent.preventDefault();\n\t\t\t}\n\t\t},\n\n\t\t_handleKeyEvent: function(type, event, key, character) {\n\t\t\tvar scope = this._scope,\n\t\t\t\ttool = scope.tool,\n\t\t\t\tkeyEvent;\n\n\t\t\tfunction emit(obj) {\n\t\t\t\tif (obj.responds(type)) {\n\t\t\t\t\tpaper = scope;\n\t\t\t\t\tobj.emit(type, keyEvent = keyEvent\n\t\t\t\t\t\t\t|| new KeyEvent(type, event, key, character));\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif (this.isVisible()) {\n\t\t\t\temit(this);\n\t\t\t\tif (tool && tool.responds(type))\n\t\t\t\t\temit(tool);\n\t\t\t}\n\t\t},\n\n\t\t_countItemEvent: function(type, sign) {\n\t\t\tvar itemEvents = this._itemEvents,\n\t\t\t\tnative = itemEvents.native,\n\t\t\t\tvirtual = itemEvents.virtual;\n\t\t\tfor (var key in itemEventsMap) {\n\t\t\t\tnative[key] = (native[key] || 0)\n\t\t\t\t\t\t+ (itemEventsMap[key][type] || 0) * sign;\n\t\t\t}\n\t\t\tvirtual[type] = (virtual[type] || 0) + sign;\n\t\t},\n\n\t\tstatics: {\n\t\t\tupdateFocus: updateFocus,\n\n\t\t\t_resetState: function() {\n\t\t\t\tdragging = mouseDown = called = wasInView = false;\n\t\t\t\tprevFocus = tempFocus = overView = downPoint = lastPoint =\n\t\t\t\t\tdownItem = overItem = dragItem = clickItem = clickTime =\n\t\t\t\t\tdblClick = null;\n\t\t\t}\n\t\t}\n\t};\n});\n\nvar CanvasView = View.extend({\n\t_class: 'CanvasView',\n\n\tinitialize: function CanvasView(project, canvas) {\n\t\tif (!(canvas instanceof window.HTMLCanvasElement)) {\n\t\t\tvar size = Size.read(arguments, 1);\n\t\t\tif (size.isZero())\n\t\t\t\tthrow new Error(\n\t\t\t\t\t\t'Cannot create CanvasView with the provided argument: '\n\t\t\t\t\t\t+ Base.slice(arguments, 1));\n\t\t\tcanvas = CanvasProvider.getCanvas(size);\n\t\t}\n\t\tvar ctx = this._context = canvas.getContext('2d');\n\t\tctx.save();\n\t\tthis._pixelRatio = 1;\n\t\tif (!/^off|false$/.test(PaperScope.getAttribute(canvas, 'hidpi'))) {\n\t\t\tvar deviceRatio = window.devicePixelRatio || 1,\n\t\t\t\tbackingStoreRatio = DomElement.getPrefixed(ctx,\n\t\t\t\t\t\t'backingStorePixelRatio') || 1;\n\t\t\tthis._pixelRatio = deviceRatio / backingStoreRatio;\n\t\t}\n\t\tView.call(this, project, canvas);\n\t\tthis._needsUpdate = true;\n\t},\n\n\tremove: function remove() {\n\t\tthis._context.restore();\n\t\treturn remove.base.call(this);\n\t},\n\n\t_setElementSize: function _setElementSize(width, height) {\n\t\tvar pixelRatio = this._pixelRatio;\n\t\t_setElementSize.base.call(this, width * pixelRatio, height * pixelRatio);\n\t\tif (pixelRatio !== 1) {\n\t\t\tvar element = this._element,\n\t\t\t\tctx = this._context;\n\t\t\tif (!PaperScope.hasAttribute(element, 'resize')) {\n\t\t\t\tvar style = element.style;\n\t\t\t\tstyle.width = width + 'px';\n\t\t\t\tstyle.height = height + 'px';\n\t\t\t}\n\t\t\tctx.restore();\n\t\t\tctx.save();\n\t\t\tctx.scale(pixelRatio, pixelRatio);\n\t\t}\n\t},\n\n\tgetContext: function() {\n\t\treturn this._context;\n\t},\n\n\tgetPixelSize: function getPixelSize(size) {\n\t\tvar agent = paper.agent,\n\t\t\tpixels;\n\t\tif (agent && agent.firefox) {\n\t\t\tpixels = getPixelSize.base.call(this, size);\n\t\t} else {\n\t\t\tvar ctx = this._context,\n\t\t\t\tprevFont = ctx.font;\n\t\t\tctx.font = size + ' serif';\n\t\t\tpixels = parseFloat(ctx.font);\n\t\t\tctx.font = prevFont;\n\t\t}\n\t\treturn pixels;\n\t},\n\n\tgetTextWidth: function(font, lines) {\n\t\tvar ctx = this._context,\n\t\t\tprevFont = ctx.font,\n\t\t\twidth = 0;\n\t\tctx.font = font;\n\t\tfor (var i = 0, l = lines.length; i < l; i++)\n\t\t\twidth = Math.max(width, ctx.measureText(lines[i]).width);\n\t\tctx.font = prevFont;\n\t\treturn width;\n\t},\n\n\tupdate: function() {\n\t\tif (!this._needsUpdate)\n\t\t\treturn false;\n\t\tvar project = this._project,\n\t\t\tctx = this._context,\n\t\t\tsize = this._viewSize;\n\t\tctx.clearRect(0, 0, size.width + 1, size.height + 1);\n\t\tif (project)\n\t\t\tproject.draw(ctx, this._matrix, this._pixelRatio);\n\t\tthis._needsUpdate = false;\n\t\treturn true;\n\t}\n});\n\nvar Event = Base.extend({\n\t_class: 'Event',\n\n\tinitialize: function Event(event) {\n\t\tthis.event = event;\n\t\tthis.type = event && event.type;\n\t},\n\n\tprevented: false,\n\tstopped: false,\n\n\tpreventDefault: function() {\n\t\tthis.prevented = true;\n\t\tthis.event.preventDefault();\n\t},\n\n\tstopPropagation: function() {\n\t\tthis.stopped = true;\n\t\tthis.event.stopPropagation();\n\t},\n\n\tstop: function() {\n\t\tthis.stopPropagation();\n\t\tthis.preventDefault();\n\t},\n\n\tgetTimeStamp: function() {\n\t\treturn this.event.timeStamp;\n\t},\n\n\tgetModifiers: function() {\n\t\treturn Key.modifiers;\n\t}\n});\n\nvar KeyEvent = Event.extend({\n\t_class: 'KeyEvent',\n\n\tinitialize: function KeyEvent(type, event, key, character) {\n\t\tthis.type = type;\n\t\tthis.event = event;\n\t\tthis.key = key;\n\t\tthis.character = character;\n\t},\n\n\ttoString: function() {\n\t\treturn \"{ type: '\" + this.type\n\t\t\t\t+ \"', key: '\" + this.key\n\t\t\t\t+ \"', character: '\" + this.character\n\t\t\t\t+ \"', modifiers: \" + this.getModifiers()\n\t\t\t\t+ \" }\";\n\t}\n});\n\nvar Key = new function() {\n\tvar keyLookup = {\n\t\t\t'\\t': 'tab',\n\t\t\t' ': 'space',\n\t\t\t'\\b': 'backspace',\n\t\t\t'\\x7f': 'delete',\n\t\t\t'Spacebar': 'space',\n\t\t\t'Del': 'delete',\n\t\t\t'Win': 'meta',\n\t\t\t'Esc': 'escape'\n\t\t},\n\n\t\tcharLookup = {\n\t\t\t'tab': '\\t',\n\t\t\t'space': ' ',\n\t\t\t'enter': '\\r'\n\t\t},\n\n\t\tkeyMap = {},\n\t\tcharMap = {},\n\t\tmetaFixMap,\n\t\tdownKey,\n\n\t\tmodifiers = new Base({\n\t\t\tshift: false,\n\t\t\tcontrol: false,\n\t\t\talt: false,\n\t\t\tmeta: false,\n\t\t\tcapsLock: false,\n\t\t\tspace: false\n\t\t}).inject({\n\t\t\toption: {\n\t\t\t\tget: function() {\n\t\t\t\t\treturn this.alt;\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tcommand: {\n\t\t\t\tget: function() {\n\t\t\t\t\tvar agent = paper && paper.agent;\n\t\t\t\t\treturn agent && agent.mac ? this.meta : this.control;\n\t\t\t\t}\n\t\t\t}\n\t\t});\n\n\tfunction getKey(event) {\n\t\tvar key = event.key || event.keyIdentifier;\n\t\tkey = /^U\\+/.test(key)\n\t\t\t\t? String.fromCharCode(parseInt(key.substr(2), 16))\n\t\t\t\t: /^Arrow[A-Z]/.test(key) ? key.substr(5)\n\t\t\t\t: key === 'Unidentified' || key === undefined\n\t\t\t\t\t? String.fromCharCode(event.keyCode)\n\t\t\t\t\t: key;\n\t\treturn keyLookup[key] ||\n\t\t\t\t(key.length > 1 ? Base.hyphenate(key) : key.toLowerCase());\n\t}\n\n\tfunction handleKey(down, key, character, event) {\n\t\tvar type = down ? 'keydown' : 'keyup',\n\t\t\tview = View._focused,\n\t\t\tname;\n\t\tkeyMap[key] = down;\n\t\tif (down) {\n\t\t\tcharMap[key] = character;\n\t\t} else {\n\t\t\tdelete charMap[key];\n\t\t}\n\t\tif (key.length > 1 && (name = Base.camelize(key)) in modifiers) {\n\t\t\tmodifiers[name] = down;\n\t\t\tvar agent = paper && paper.agent;\n\t\t\tif (name === 'meta' && agent && agent.mac) {\n\t\t\t\tif (down) {\n\t\t\t\t\tmetaFixMap = {};\n\t\t\t\t} else {\n\t\t\t\t\tfor (var k in metaFixMap) {\n\t\t\t\t\t\tif (k in charMap)\n\t\t\t\t\t\t\thandleKey(false, k, metaFixMap[k], event);\n\t\t\t\t\t}\n\t\t\t\t\tmetaFixMap = null;\n\t\t\t\t}\n\t\t\t}\n\t\t} else if (down && metaFixMap) {\n\t\t\tmetaFixMap[key] = character;\n\t\t}\n\t\tif (view) {\n\t\t\tview._handleKeyEvent(down ? 'keydown' : 'keyup', event, key,\n\t\t\t\t\tcharacter);\n\t\t}\n\t}\n\n\tDomEvent.add(document, {\n\t\tkeydown: function(event) {\n\t\t\tvar key = getKey(event),\n\t\t\t\tagent = paper && paper.agent;\n\t\t\tif (key.length > 1 || agent && (agent.chrome && (event.altKey\n\t\t\t\t\t\t|| agent.mac && event.metaKey\n\t\t\t\t\t\t|| !agent.mac && event.ctrlKey))) {\n\t\t\t\thandleKey(true, key,\n\t\t\t\t\t\tcharLookup[key] || (key.length > 1 ? '' : key), event);\n\t\t\t} else {\n\t\t\t\tdownKey = key;\n\t\t\t}\n\t\t},\n\n\t\tkeypress: function(event) {\n\t\t\tif (downKey) {\n\t\t\t\tvar key = getKey(event),\n\t\t\t\t\tcode = event.charCode,\n\t\t\t\t\tcharacter = code >= 32 ? String.fromCharCode(code)\n\t\t\t\t\t\t: key.length > 1 ? '' : key;\n\t\t\t\tif (key !== downKey) {\n\t\t\t\t\tkey = character.toLowerCase();\n\t\t\t\t}\n\t\t\t\thandleKey(true, key, character, event);\n\t\t\t\tdownKey = null;\n\t\t\t}\n\t\t},\n\n\t\tkeyup: function(event) {\n\t\t\tvar key = getKey(event);\n\t\t\tif (key in charMap)\n\t\t\t\thandleKey(false, key, charMap[key], event);\n\t\t}\n\t});\n\n\tDomEvent.add(window, {\n\t\tblur: function(event) {\n\t\t\tfor (var key in charMap)\n\t\t\t\thandleKey(false, key, charMap[key], event);\n\t\t}\n\t});\n\n\treturn {\n\t\tmodifiers: modifiers,\n\n\t\tisDown: function(key) {\n\t\t\treturn !!keyMap[key];\n\t\t}\n\t};\n};\n\nvar MouseEvent = Event.extend({\n\t_class: 'MouseEvent',\n\n\tinitialize: function MouseEvent(type, event, point, target, delta) {\n\t\tthis.type = type;\n\t\tthis.event = event;\n\t\tthis.point = point;\n\t\tthis.target = target;\n\t\tthis.delta = delta;\n\t},\n\n\ttoString: function() {\n\t\treturn \"{ type: '\" + this.type\n\t\t\t\t+ \"', point: \" + this.point\n\t\t\t\t+ ', target: ' + this.target\n\t\t\t\t+ (this.delta ? ', delta: ' + this.delta : '')\n\t\t\t\t+ ', modifiers: ' + this.getModifiers()\n\t\t\t\t+ ' }';\n\t}\n});\n\nvar ToolEvent = Event.extend({\n\t_class: 'ToolEvent',\n\t_item: null,\n\n\tinitialize: function ToolEvent(tool, type, event) {\n\t\tthis.tool = tool;\n\t\tthis.type = type;\n\t\tthis.event = event;\n\t},\n\n\t_choosePoint: function(point, toolPoint) {\n\t\treturn point ? point : toolPoint ? toolPoint.clone() : null;\n\t},\n\n\tgetPoint: function() {\n\t\treturn this._choosePoint(this._point, this.tool._point);\n\t},\n\n\tsetPoint: function(point) {\n\t\tthis._point = point;\n\t},\n\n\tgetLastPoint: function() {\n\t\treturn this._choosePoint(this._lastPoint, this.tool._lastPoint);\n\t},\n\n\tsetLastPoint: function(lastPoint) {\n\t\tthis._lastPoint = lastPoint;\n\t},\n\n\tgetDownPoint: function() {\n\t\treturn this._choosePoint(this._downPoint, this.tool._downPoint);\n\t},\n\n\tsetDownPoint: function(downPoint) {\n\t\tthis._downPoint = downPoint;\n\t},\n\n\tgetMiddlePoint: function() {\n\t\tif (!this._middlePoint && this.tool._lastPoint) {\n\t\t\treturn this.tool._point.add(this.tool._lastPoint).divide(2);\n\t\t}\n\t\treturn this._middlePoint;\n\t},\n\n\tsetMiddlePoint: function(middlePoint) {\n\t\tthis._middlePoint = middlePoint;\n\t},\n\n\tgetDelta: function() {\n\t\treturn !this._delta && this.tool._lastPoint\n\t\t\t\t? this.tool._point.subtract(this.tool._lastPoint)\n\t\t\t\t: this._delta;\n\t},\n\n\tsetDelta: function(delta) {\n\t\tthis._delta = delta;\n\t},\n\n\tgetCount: function() {\n\t\treturn this.tool[/^mouse(down|up)$/.test(this.type)\n\t\t\t\t? '_downCount' : '_moveCount'];\n\t},\n\n\tsetCount: function(count) {\n\t\tthis.tool[/^mouse(down|up)$/.test(this.type) ? 'downCount' : 'count']\n\t\t\t= count;\n\t},\n\n\tgetItem: function() {\n\t\tif (!this._item) {\n\t\t\tvar result = this.tool._scope.project.hitTest(this.getPoint());\n\t\t\tif (result) {\n\t\t\t\tvar item = result.item,\n\t\t\t\t\tparent = item._parent;\n\t\t\t\twhile (/^(Group|CompoundPath)$/.test(parent._class)) {\n\t\t\t\t\titem = parent;\n\t\t\t\t\tparent = parent._parent;\n\t\t\t\t}\n\t\t\t\tthis._item = item;\n\t\t\t}\n\t\t}\n\t\treturn this._item;\n\t},\n\n\tsetItem: function(item) {\n\t\tthis._item = item;\n\t},\n\n\ttoString: function() {\n\t\treturn '{ type: ' + this.type\n\t\t\t\t+ ', point: ' + this.getPoint()\n\t\t\t\t+ ', count: ' + this.getCount()\n\t\t\t\t+ ', modifiers: ' + this.getModifiers()\n\t\t\t\t+ ' }';\n\t}\n});\n\nvar Tool = PaperScopeItem.extend({\n\t_class: 'Tool',\n\t_list: 'tools',\n\t_reference: 'tool',\n\t_events: ['onMouseDown', 'onMouseUp', 'onMouseDrag', 'onMouseMove',\n\t\t\t'onActivate', 'onDeactivate', 'onEditOptions', 'onKeyDown',\n\t\t\t'onKeyUp'],\n\n\tinitialize: function Tool(props) {\n\t\tPaperScopeItem.call(this);\n\t\tthis._moveCount = -1;\n\t\tthis._downCount = -1;\n\t\tthis.set(props);\n\t},\n\n\tgetMinDistance: function() {\n\t\treturn this._minDistance;\n\t},\n\n\tsetMinDistance: function(minDistance) {\n\t\tthis._minDistance = minDistance;\n\t\tif (minDistance != null && this._maxDistance != null\n\t\t\t\t&& minDistance > this._maxDistance) {\n\t\t\tthis._maxDistance = minDistance;\n\t\t}\n\t},\n\n\tgetMaxDistance: function() {\n\t\treturn this._maxDistance;\n\t},\n\n\tsetMaxDistance: function(maxDistance) {\n\t\tthis._maxDistance = maxDistance;\n\t\tif (this._minDistance != null && maxDistance != null\n\t\t\t\t&& maxDistance < this._minDistance) {\n\t\t\tthis._minDistance = maxDistance;\n\t\t}\n\t},\n\n\tgetFixedDistance: function() {\n\t\treturn this._minDistance == this._maxDistance\n\t\t\t? this._minDistance : null;\n\t},\n\n\tsetFixedDistance: function(distance) {\n\t\tthis._minDistance = this._maxDistance = distance;\n\t},\n\n\t_handleMouseEvent: function(type, event, point, mouse) {\n\t\tpaper = this._scope;\n\t\tif (mouse.drag && !this.responds(type))\n\t\t\ttype = 'mousemove';\n\t\tvar move = mouse.move || mouse.drag,\n\t\t\tresponds = this.responds(type),\n\t\t\tminDistance = this.minDistance,\n\t\t\tmaxDistance = this.maxDistance,\n\t\t\tcalled = false,\n\t\t\ttool = this;\n\t\tfunction update(minDistance, maxDistance) {\n\t\t\tvar pt = point,\n\t\t\t\ttoolPoint = move ? tool._point : (tool._downPoint || pt);\n\t\t\tif (move) {\n\t\t\t\tif (tool._moveCount >= 0 && pt.equals(toolPoint)) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t\tif (toolPoint && (minDistance != null || maxDistance != null)) {\n\t\t\t\t\tvar vector = pt.subtract(toolPoint),\n\t\t\t\t\t\tdistance = vector.getLength();\n\t\t\t\t\tif (distance < (minDistance || 0))\n\t\t\t\t\t\treturn false;\n\t\t\t\t\tif (maxDistance) {\n\t\t\t\t\t\tpt = toolPoint.add(vector.normalize(\n\t\t\t\t\t\t\t\tMath.min(distance, maxDistance)));\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\ttool._moveCount++;\n\t\t\t}\n\t\t\ttool._point = pt;\n\t\t\ttool._lastPoint = toolPoint || pt;\n\t\t\tif (mouse.down) {\n\t\t\t\ttool._moveCount = -1;\n\t\t\t\ttool._downPoint = pt;\n\t\t\t\ttool._downCount++;\n\t\t\t}\n\t\t\treturn true;\n\t\t}\n\n\t\tfunction emit() {\n\t\t\tif (responds) {\n\t\t\t\tcalled = tool.emit(type, new ToolEvent(tool, type, event))\n\t\t\t\t\t\t|| called;\n\t\t\t}\n\t\t}\n\n\t\tif (mouse.down) {\n\t\t\tupdate();\n\t\t\temit();\n\t\t} else if (mouse.up) {\n\t\t\tupdate(null, maxDistance);\n\t\t\temit();\n\t\t} else if (responds) {\n\t\t\twhile (update(minDistance, maxDistance))\n\t\t\t\temit();\n\t\t}\n\t\treturn called;\n\t}\n\n});\n\nvar Tween = Base.extend(Emitter, {\n\t_class: 'Tween',\n\n\tstatics: {\n\t\teasings: new Base({\n\t\t\tlinear: function(t) {\n\t\t\t\treturn t;\n\t\t\t},\n\n\t\t\teaseInQuad: function(t) {\n\t\t\t\treturn t * t;\n\t\t\t},\n\n\t\t\teaseOutQuad: function(t) {\n\t\t\t\treturn t * (2 - t);\n\t\t\t},\n\n\t\t\teaseInOutQuad: function(t) {\n\t\t\t\treturn t < 0.5\n\t\t\t\t\t? 2 * t * t\n\t\t\t\t\t: -1 + 2 * (2 - t) * t;\n\t\t\t},\n\n\t\t\teaseInCubic: function(t) {\n\t\t\t\treturn t * t * t;\n\t\t\t},\n\n\t\t\teaseOutCubic: function(t) {\n\t\t\t\treturn --t * t * t + 1;\n\t\t\t},\n\n\t\t\teaseInOutCubic: function(t) {\n\t\t\t\treturn t < 0.5\n\t\t\t\t\t? 4 * t * t * t\n\t\t\t\t\t: (t - 1) * (2 * t - 2) * (2 * t - 2) + 1;\n\t\t\t},\n\n\t\t\teaseInQuart: function(t) {\n\t\t\t\treturn t * t * t * t;\n\t\t\t},\n\n\t\t\teaseOutQuart: function(t) {\n\t\t\t\treturn 1 - (--t) * t * t * t;\n\t\t\t},\n\n\t\t\teaseInOutQuart: function(t) {\n\t\t\t\treturn t < 0.5\n\t\t\t\t\t? 8 * t * t * t * t\n\t\t\t\t\t: 1 - 8 * (--t) * t * t * t;\n\t\t\t},\n\n\t\t\teaseInQuint: function(t) {\n\t\t\t\treturn t * t * t * t * t;\n\t\t\t},\n\n\t\t\teaseOutQuint: function(t) {\n\t\t\t\treturn 1 + --t * t * t * t * t;\n\t\t\t},\n\n\t\t\teaseInOutQuint: function(t) {\n\t\t\t\treturn t < 0.5\n\t\t\t\t\t? 16 * t * t * t * t * t\n\t\t\t\t\t: 1 + 16 * (--t) * t * t * t * t;\n\t\t\t}\n\t\t})\n\t},\n\n\tinitialize: function Tween(object, from, to, duration, easing, start) {\n\t\tthis.object = object;\n\t\tvar type = typeof easing;\n\t\tvar isFunction = type === 'function';\n\t\tthis.type = isFunction\n\t\t\t? type\n\t\t\t: type === 'string'\n\t\t\t\t? easing\n\t\t\t\t: 'linear';\n\t\tthis.easing = isFunction ? easing : Tween.easings[this.type];\n\t\tthis.duration = duration;\n\t\tthis.running = false;\n\n\t\tthis._then = null;\n\t\tthis._startTime = null;\n\t\tvar state = from || to;\n\t\tthis._keys = state ? Object.keys(state) : [];\n\t\tthis._parsedKeys = this._parseKeys(this._keys);\n\t\tthis._from = state && this._getState(from);\n\t\tthis._to = state && this._getState(to);\n\t\tif (start !== false) {\n\t\t\tthis.start();\n\t\t}\n\t},\n\n\tthen: function(then) {\n\t\tthis._then = then;\n\t\treturn this;\n\t},\n\n\tstart: function() {\n\t\tthis._startTime = null;\n\t\tthis.running = true;\n\t\treturn this;\n\t},\n\n\tstop: function() {\n\t\tthis.running = false;\n\t\treturn this;\n\t},\n\n\tupdate: function(progress) {\n\t\tif (this.running) {\n\t\t\tif (progress >= 1) {\n\t\t\t\tprogress = 1;\n\t\t\t\tthis.running = false;\n\t\t\t}\n\n\t\t\tvar factor = this.easing(progress),\n\t\t\t\tkeys = this._keys,\n\t\t\t\tgetValue = function(value) {\n\t\t\t\t\treturn typeof value === 'function'\n\t\t\t\t\t\t? value(factor, progress)\n\t\t\t\t\t\t: value;\n\t\t\t\t};\n\t\t\tfor (var i = 0, l = keys && keys.length; i < l; i++) {\n\t\t\t\tvar key = keys[i],\n\t\t\t\t\tfrom = getValue(this._from[key]),\n\t\t\t\t\tto = getValue(this._to[key]),\n\t\t\t\t\tvalue = (from && to && from.__add && to.__add)\n\t\t\t\t\t\t? to.__subtract(from).__multiply(factor).__add(from)\n\t\t\t\t\t\t: ((to - from) * factor) + from;\n\t\t\t\tthis._setProperty(this._parsedKeys[key], value);\n\t\t\t}\n\n\t\t\tif (this.responds('update')) {\n\t\t\t\tthis.emit('update', new Base({\n\t\t\t\t\tprogress: progress,\n\t\t\t\t\tfactor: factor\n\t\t\t\t}));\n\t\t\t}\n\t\t\tif (!this.running && this._then) {\n\t\t\t\tthis._then(this.object);\n\t\t\t}\n\t\t}\n\t\treturn this;\n\t},\n\n\t_events: {\n\t\tonUpdate: {}\n\t},\n\n\t_handleFrame: function(time) {\n\t\tvar startTime = this._startTime,\n\t\t\tprogress = startTime\n\t\t\t\t? (time - startTime) / this.duration\n\t\t\t\t: 0;\n\t\tif (!startTime) {\n\t\t\tthis._startTime = time;\n\t\t}\n\t\tthis.update(progress);\n\t},\n\n\t_getState: function(state) {\n\t\tvar keys = this._keys,\n\t\t\tresult = {};\n\t\tfor (var i = 0, l = keys.length; i < l; i++) {\n\t\t\tvar key = keys[i],\n\t\t\t\tpath = this._parsedKeys[key],\n\t\t\t\tcurrent = this._getProperty(path),\n\t\t\t\tvalue;\n\t\t\tif (state) {\n\t\t\t\tvar resolved = this._resolveValue(current, state[key]);\n\t\t\t\tthis._setProperty(path, resolved);\n\t\t\t\tvalue = this._getProperty(path);\n\t\t\t\tvalue = value && value.clone ? value.clone() : value;\n\t\t\t\tthis._setProperty(path, current);\n\t\t\t} else {\n\t\t\t\tvalue = current && current.clone ? current.clone() : current;\n\t\t\t}\n\t\t\tresult[key] = value;\n\t\t}\n\t\treturn result;\n\t},\n\n\t_resolveValue: function(current, value) {\n\t\tif (value) {\n\t\t\tif (Array.isArray(value) && value.length === 2) {\n\t\t\t\tvar operator = value[0];\n\t\t\t\treturn (\n\t\t\t\t\toperator &&\n\t\t\t\t\toperator.match &&\n\t\t\t\t\toperator.match(/^[+\\-\\*\\/]=/)\n\t\t\t\t)\n\t\t\t\t\t? this._calculate(current, operator[0], value[1])\n\t\t\t\t\t: value;\n\t\t\t} else if (typeof value === 'string') {\n\t\t\t\tvar match = value.match(/^[+\\-*/]=(.*)/);\n\t\t\t\tif (match) {\n\t\t\t\t\tvar parsed = JSON.parse(match[1].replace(\n\t\t\t\t\t\t/(['\"])?([a-zA-Z0-9_]+)(['\"])?:/g,\n\t\t\t\t\t\t'\"$2\": '\n\t\t\t\t\t));\n\t\t\t\t\treturn this._calculate(current, value[0], parsed);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn value;\n\t},\n\n\t_calculate: function(left, operator, right) {\n\t\treturn paper.PaperScript.calculateBinary(left, operator, right);\n\t},\n\n\t_parseKeys: function(keys) {\n\t\tvar parsed = {};\n\t\tfor (var i = 0, l = keys.length; i < l; i++) {\n\t\t\tvar key = keys[i],\n\t\t\t\tpath = key\n\t\t\t\t\t.replace(/\\.([^.]*)/g, '/$1')\n\t\t\t\t\t.replace(/\\[['\"]?([^'\"\\]]*)['\"]?\\]/g, '/$1');\n\t\t\tparsed[key] = path.split('/');\n\t\t}\n\t\treturn parsed;\n\t},\n\n\t_getProperty: function(path, offset) {\n\t\tvar obj = this.object;\n\t\tfor (var i = 0, l = path.length - (offset || 0); i < l && obj; i++) {\n\t\t\tobj = obj[path[i]];\n\t\t}\n\t\treturn obj;\n\t},\n\n\t_setProperty: function(path, value) {\n\t\tvar dest = this._getProperty(path, 1);\n\t\tif (dest) {\n\t\t\tdest[path[path.length - 1]] = value;\n\t\t}\n\t}\n});\n\nvar Http = {\n\trequest: function(options) {\n\t\tvar xhr = new self.XMLHttpRequest();\n\t\txhr.open((options.method || 'get').toUpperCase(), options.url,\n\t\t\t\tBase.pick(options.async, true));\n\t\tif (options.mimeType)\n\t\t\txhr.overrideMimeType(options.mimeType);\n\t\txhr.onload = function() {\n\t\t\tvar status = xhr.status;\n\t\t\tif (status === 0 || status === 200) {\n\t\t\t\tif (options.onLoad) {\n\t\t\t\t\toptions.onLoad.call(xhr, xhr.responseText);\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\txhr.onerror();\n\t\t\t}\n\t\t};\n\t\txhr.onerror = function() {\n\t\t\tvar status = xhr.status,\n\t\t\t\tmessage = 'Could not load \"' + options.url + '\" (Status: '\n\t\t\t\t\t\t+ status + ')';\n\t\t\tif (options.onError) {\n\t\t\t\toptions.onError(message, status);\n\t\t\t} else {\n\t\t\t\tthrow new Error(message);\n\t\t\t}\n\t\t};\n\t\treturn xhr.send(null);\n\t}\n};\n\nvar CanvasProvider = Base.exports.CanvasProvider = {\n\tcanvases: [],\n\n\tgetCanvas: function(width, height) {\n\t\tif (!window)\n\t\t\treturn null;\n\t\tvar canvas,\n\t\t\tclear = true;\n\t\tif (typeof width === 'object') {\n\t\t\theight = width.height;\n\t\t\twidth = width.width;\n\t\t}\n\t\tif (this.canvases.length) {\n\t\t\tcanvas = this.canvases.pop();\n\t\t} else {\n\t\t\tcanvas = document.createElement('canvas');\n\t\t\tclear = false;\n\t\t}\n\t\tvar ctx = canvas.getContext('2d');\n\t\tif (!ctx) {\n\t\t\tthrow new Error('Canvas ' + canvas +\n\t\t\t\t\t' is unable to provide a 2D context.');\n\t\t}\n\t\tif (canvas.width === width && canvas.height === height) {\n\t\t\tif (clear)\n\t\t\t\tctx.clearRect(0, 0, width + 1, height + 1);\n\t\t} else {\n\t\t\tcanvas.width = width;\n\t\t\tcanvas.height = height;\n\t\t}\n\t\tctx.save();\n\t\treturn canvas;\n\t},\n\n\tgetContext: function(width, height) {\n\t\tvar canvas = this.getCanvas(width, height);\n\t\treturn canvas ? canvas.getContext('2d') : null;\n\t},\n\n\trelease: function(obj) {\n\t\tvar canvas = obj && obj.canvas ? obj.canvas : obj;\n\t\tif (canvas && canvas.getContext) {\n\t\t\tcanvas.getContext('2d').restore();\n\t\t\tthis.canvases.push(canvas);\n\t\t}\n\t}\n};\n\nvar BlendMode = new function() {\n\tvar min = Math.min,\n\t\tmax = Math.max,\n\t\tabs = Math.abs,\n\t\tsr, sg, sb, sa,\n\t\tbr, bg, bb, ba,\n\t\tdr, dg, db;\n\n\tfunction getLum(r, g, b) {\n\t\treturn 0.2989 * r + 0.587 * g + 0.114 * b;\n\t}\n\n\tfunction setLum(r, g, b, l) {\n\t\tvar d = l - getLum(r, g, b);\n\t\tdr = r + d;\n\t\tdg = g + d;\n\t\tdb = b + d;\n\t\tvar l = getLum(dr, dg, db),\n\t\t\tmn = min(dr, dg, db),\n\t\t\tmx = max(dr, dg, db);\n\t\tif (mn < 0) {\n\t\t\tvar lmn = l - mn;\n\t\t\tdr = l + (dr - l) * l / lmn;\n\t\t\tdg = l + (dg - l) * l / lmn;\n\t\t\tdb = l + (db - l) * l / lmn;\n\t\t}\n\t\tif (mx > 255) {\n\t\t\tvar ln = 255 - l,\n\t\t\t\tmxl = mx - l;\n\t\t\tdr = l + (dr - l) * ln / mxl;\n\t\t\tdg = l + (dg - l) * ln / mxl;\n\t\t\tdb = l + (db - l) * ln / mxl;\n\t\t}\n\t}\n\n\tfunction getSat(r, g, b) {\n\t\treturn max(r, g, b) - min(r, g, b);\n\t}\n\n\tfunction setSat(r, g, b, s) {\n\t\tvar col = [r, g, b],\n\t\t\tmx = max(r, g, b),\n\t\t\tmn = min(r, g, b),\n\t\t\tmd;\n\t\tmn = mn === r ? 0 : mn === g ? 1 : 2;\n\t\tmx = mx === r ? 0 : mx === g ? 1 : 2;\n\t\tmd = min(mn, mx) === 0 ? max(mn, mx) === 1 ? 2 : 1 : 0;\n\t\tif (col[mx] > col[mn]) {\n\t\t\tcol[md] = (col[md] - col[mn]) * s / (col[mx] - col[mn]);\n\t\t\tcol[mx] = s;\n\t\t} else {\n\t\t\tcol[md] = col[mx] = 0;\n\t\t}\n\t\tcol[mn] = 0;\n\t\tdr = col[0];\n\t\tdg = col[1];\n\t\tdb = col[2];\n\t}\n\n\tvar modes = {\n\t\tmultiply: function() {\n\t\t\tdr = br * sr / 255;\n\t\t\tdg = bg * sg / 255;\n\t\t\tdb = bb * sb / 255;\n\t\t},\n\n\t\tscreen: function() {\n\t\t\tdr = br + sr - (br * sr / 255);\n\t\t\tdg = bg + sg - (bg * sg / 255);\n\t\t\tdb = bb + sb - (bb * sb / 255);\n\t\t},\n\n\t\toverlay: function() {\n\t\t\tdr = br < 128 ? 2 * br * sr / 255 : 255 - 2 * (255 - br) * (255 - sr) / 255;\n\t\t\tdg = bg < 128 ? 2 * bg * sg / 255 : 255 - 2 * (255 - bg) * (255 - sg) / 255;\n\t\t\tdb = bb < 128 ? 2 * bb * sb / 255 : 255 - 2 * (255 - bb) * (255 - sb) / 255;\n\t\t},\n\n\t\t'soft-light': function() {\n\t\t\tvar t = sr * br / 255;\n\t\t\tdr = t + br * (255 - (255 - br) * (255 - sr) / 255 - t) / 255;\n\t\t\tt = sg * bg / 255;\n\t\t\tdg = t + bg * (255 - (255 - bg) * (255 - sg) / 255 - t) / 255;\n\t\t\tt = sb * bb / 255;\n\t\t\tdb = t + bb * (255 - (255 - bb) * (255 - sb) / 255 - t) / 255;\n\t\t},\n\n\t\t'hard-light': function() {\n\t\t\tdr = sr < 128 ? 2 * sr * br / 255 : 255 - 2 * (255 - sr) * (255 - br) / 255;\n\t\t\tdg = sg < 128 ? 2 * sg * bg / 255 : 255 - 2 * (255 - sg) * (255 - bg) / 255;\n\t\t\tdb = sb < 128 ? 2 * sb * bb / 255 : 255 - 2 * (255 - sb) * (255 - bb) / 255;\n\t\t},\n\n\t\t'color-dodge': function() {\n\t\t\tdr = br === 0 ? 0 : sr === 255 ? 255 : min(255, 255 * br / (255 - sr));\n\t\t\tdg = bg === 0 ? 0 : sg === 255 ? 255 : min(255, 255 * bg / (255 - sg));\n\t\t\tdb = bb === 0 ? 0 : sb === 255 ? 255 : min(255, 255 * bb / (255 - sb));\n\t\t},\n\n\t\t'color-burn': function() {\n\t\t\tdr = br === 255 ? 255 : sr === 0 ? 0 : max(0, 255 - (255 - br) * 255 / sr);\n\t\t\tdg = bg === 255 ? 255 : sg === 0 ? 0 : max(0, 255 - (255 - bg) * 255 / sg);\n\t\t\tdb = bb === 255 ? 255 : sb === 0 ? 0 : max(0, 255 - (255 - bb) * 255 / sb);\n\t\t},\n\n\t\tdarken: function() {\n\t\t\tdr = br < sr ? br : sr;\n\t\t\tdg = bg < sg ? bg : sg;\n\t\t\tdb = bb < sb ? bb : sb;\n\t\t},\n\n\t\tlighten: function() {\n\t\t\tdr = br > sr ? br : sr;\n\t\t\tdg = bg > sg ? bg : sg;\n\t\t\tdb = bb > sb ? bb : sb;\n\t\t},\n\n\t\tdifference: function() {\n\t\t\tdr = br - sr;\n\t\t\tif (dr < 0)\n\t\t\t\tdr = -dr;\n\t\t\tdg = bg - sg;\n\t\t\tif (dg < 0)\n\t\t\t\tdg = -dg;\n\t\t\tdb = bb - sb;\n\t\t\tif (db < 0)\n\t\t\t\tdb = -db;\n\t\t},\n\n\t\texclusion: function() {\n\t\t\tdr = br + sr * (255 - br - br) / 255;\n\t\t\tdg = bg + sg * (255 - bg - bg) / 255;\n\t\t\tdb = bb + sb * (255 - bb - bb) / 255;\n\t\t},\n\n\t\thue: function() {\n\t\t\tsetSat(sr, sg, sb, getSat(br, bg, bb));\n\t\t\tsetLum(dr, dg, db, getLum(br, bg, bb));\n\t\t},\n\n\t\tsaturation: function() {\n\t\t\tsetSat(br, bg, bb, getSat(sr, sg, sb));\n\t\t\tsetLum(dr, dg, db, getLum(br, bg, bb));\n\t\t},\n\n\t\tluminosity: function() {\n\t\t\tsetLum(br, bg, bb, getLum(sr, sg, sb));\n\t\t},\n\n\t\tcolor: function() {\n\t\t\tsetLum(sr, sg, sb, getLum(br, bg, bb));\n\t\t},\n\n\t\tadd: function() {\n\t\t\tdr = min(br + sr, 255);\n\t\t\tdg = min(bg + sg, 255);\n\t\t\tdb = min(bb + sb, 255);\n\t\t},\n\n\t\tsubtract: function() {\n\t\t\tdr = max(br - sr, 0);\n\t\t\tdg = max(bg - sg, 0);\n\t\t\tdb = max(bb - sb, 0);\n\t\t},\n\n\t\taverage: function() {\n\t\t\tdr = (br + sr) / 2;\n\t\t\tdg = (bg + sg) / 2;\n\t\t\tdb = (bb + sb) / 2;\n\t\t},\n\n\t\tnegation: function() {\n\t\t\tdr = 255 - abs(255 - sr - br);\n\t\t\tdg = 255 - abs(255 - sg - bg);\n\t\t\tdb = 255 - abs(255 - sb - bb);\n\t\t}\n\t};\n\n\tvar nativeModes = this.nativeModes = Base.each([\n\t\t'source-over', 'source-in', 'source-out', 'source-atop',\n\t\t'destination-over', 'destination-in', 'destination-out',\n\t\t'destination-atop', 'lighter', 'darker', 'copy', 'xor'\n\t], function(mode) {\n\t\tthis[mode] = true;\n\t}, {});\n\n\tvar ctx = CanvasProvider.getContext(1, 1);\n\tif (ctx) {\n\t\tBase.each(modes, function(func, mode) {\n\t\t\tvar darken = mode === 'darken',\n\t\t\t\tok = false;\n\t\t\tctx.save();\n\t\t\ttry {\n\t\t\t\tctx.fillStyle = darken ? '#300' : '#a00';\n\t\t\t\tctx.fillRect(0, 0, 1, 1);\n\t\t\t\tctx.globalCompositeOperation = mode;\n\t\t\t\tif (ctx.globalCompositeOperation === mode) {\n\t\t\t\t\tctx.fillStyle = darken ? '#a00' : '#300';\n\t\t\t\t\tctx.fillRect(0, 0, 1, 1);\n\t\t\t\t\tok = ctx.getImageData(0, 0, 1, 1).data[0] !== darken\n\t\t\t\t\t\t\t? 170 : 51;\n\t\t\t\t}\n\t\t\t} catch (e) {}\n\t\t\tctx.restore();\n\t\t\tnativeModes[mode] = ok;\n\t\t});\n\t\tCanvasProvider.release(ctx);\n\t}\n\n\tthis.process = function(mode, srcContext, dstContext, alpha, offset) {\n\t\tvar srcCanvas = srcContext.canvas,\n\t\t\tnormal = mode === 'normal';\n\t\tif (normal || nativeModes[mode]) {\n\t\t\tdstContext.save();\n\t\t\tdstContext.setTransform(1, 0, 0, 1, 0, 0);\n\t\t\tdstContext.globalAlpha = alpha;\n\t\t\tif (!normal)\n\t\t\t\tdstContext.globalCompositeOperation = mode;\n\t\t\tdstContext.drawImage(srcCanvas, offset.x, offset.y);\n\t\t\tdstContext.restore();\n\t\t} else {\n\t\t\tvar process = modes[mode];\n\t\t\tif (!process)\n\t\t\t\treturn;\n\t\t\tvar dstData = dstContext.getImageData(offset.x, offset.y,\n\t\t\t\t\tsrcCanvas.width, srcCanvas.height),\n\t\t\t\tdst = dstData.data,\n\t\t\t\tsrc = srcContext.getImageData(0, 0,\n\t\t\t\t\tsrcCanvas.width, srcCanvas.height).data;\n\t\t\tfor (var i = 0, l = dst.length; i < l; i += 4) {\n\t\t\t\tsr = src[i];\n\t\t\t\tbr = dst[i];\n\t\t\t\tsg = src[i + 1];\n\t\t\t\tbg = dst[i + 1];\n\t\t\t\tsb = src[i + 2];\n\t\t\t\tbb = dst[i + 2];\n\t\t\t\tsa = src[i + 3];\n\t\t\t\tba = dst[i + 3];\n\t\t\t\tprocess();\n\t\t\t\tvar a1 = sa * alpha / 255,\n\t\t\t\t\ta2 = 1 - a1;\n\t\t\t\tdst[i] = a1 * dr + a2 * br;\n\t\t\t\tdst[i + 1] = a1 * dg + a2 * bg;\n\t\t\t\tdst[i + 2] = a1 * db + a2 * bb;\n\t\t\t\tdst[i + 3] = sa * alpha + a2 * ba;\n\t\t\t}\n\t\t\tdstContext.putImageData(dstData, offset.x, offset.y);\n\t\t}\n\t};\n};\n\nvar SvgElement = new function() {\n\tvar svg = 'http://www.w3.org/2000/svg',\n\t\txmlns = 'http://www.w3.org/2000/xmlns',\n\t\txlink = 'http://www.w3.org/1999/xlink',\n\t\tattributeNamespace = {\n\t\t\thref: xlink,\n\t\t\txlink: xmlns,\n\t\t\txmlns: xmlns + '/',\n\t\t\t'xmlns:xlink': xmlns + '/'\n\t\t};\n\n\tfunction create(tag, attributes, formatter) {\n\t\treturn set(document.createElementNS(svg, tag), attributes, formatter);\n\t}\n\n\tfunction get(node, name) {\n\t\tvar namespace = attributeNamespace[name],\n\t\t\tvalue = namespace\n\t\t\t\t? node.getAttributeNS(namespace, name)\n\t\t\t\t: node.getAttribute(name);\n\t\treturn value === 'null' ? null : value;\n\t}\n\n\tfunction set(node, attributes, formatter) {\n\t\tfor (var name in attributes) {\n\t\t\tvar value = attributes[name],\n\t\t\t\tnamespace = attributeNamespace[name];\n\t\t\tif (typeof value === 'number' && formatter)\n\t\t\t\tvalue = formatter.number(value);\n\t\t\tif (namespace) {\n\t\t\t\tnode.setAttributeNS(namespace, name, value);\n\t\t\t} else {\n\t\t\t\tnode.setAttribute(name, value);\n\t\t\t}\n\t\t}\n\t\treturn node;\n\t}\n\n\treturn {\n\t\tsvg: svg,\n\t\txmlns: xmlns,\n\t\txlink: xlink,\n\n\t\tcreate: create,\n\t\tget: get,\n\t\tset: set\n\t};\n};\n\nvar SvgStyles = Base.each({\n\tfillColor: ['fill', 'color'],\n\tfillRule: ['fill-rule', 'string'],\n\tstrokeColor: ['stroke', 'color'],\n\tstrokeWidth: ['stroke-width', 'number'],\n\tstrokeCap: ['stroke-linecap', 'string'],\n\tstrokeJoin: ['stroke-linejoin', 'string'],\n\tstrokeScaling: ['vector-effect', 'lookup', {\n\t\ttrue: 'none',\n\t\tfalse: 'non-scaling-stroke'\n\t}, function(item, value) {\n\t\treturn !value\n\t\t\t\t&& (item instanceof PathItem\n\t\t\t\t\t|| item instanceof Shape\n\t\t\t\t\t|| item instanceof TextItem);\n\t}],\n\tmiterLimit: ['stroke-miterlimit', 'number'],\n\tdashArray: ['stroke-dasharray', 'array'],\n\tdashOffset: ['stroke-dashoffset', 'number'],\n\tfontFamily: ['font-family', 'string'],\n\tfontWeight: ['font-weight', 'string'],\n\tfontSize: ['font-size', 'number'],\n\tjustification: ['text-anchor', 'lookup', {\n\t\tleft: 'start',\n\t\tcenter: 'middle',\n\t\tright: 'end'\n\t}],\n\topacity: ['opacity', 'number'],\n\tblendMode: ['mix-blend-mode', 'style']\n}, function(entry, key) {\n\tvar part = Base.capitalize(key),\n\t\tlookup = entry[2];\n\tthis[key] = {\n\t\ttype: entry[1],\n\t\tproperty: key,\n\t\tattribute: entry[0],\n\t\ttoSVG: lookup,\n\t\tfromSVG: lookup && Base.each(lookup, function(value, name) {\n\t\t\tthis[value] = name;\n\t\t}, {}),\n\t\texportFilter: entry[3],\n\t\tget: 'get' + part,\n\t\tset: 'set' + part\n\t};\n}, {});\n\nnew function() {\n\tvar formatter;\n\n\tfunction getTransform(matrix, coordinates, center) {\n\t\tvar attrs = new Base(),\n\t\t\ttrans = matrix.getTranslation();\n\t\tif (coordinates) {\n\t\t\tvar point;\n\t\t\tif (matrix.isInvertible()) {\n\t\t\t\tmatrix = matrix._shiftless();\n\t\t\t\tpoint = matrix._inverseTransform(trans);\n\t\t\t\ttrans = null;\n\t\t\t} else {\n\t\t\t\tpoint = new Point();\n\t\t\t}\n\t\t\tattrs[center ? 'cx' : 'x'] = point.x;\n\t\t\tattrs[center ? 'cy' : 'y'] = point.y;\n\t\t}\n\t\tif (!matrix.isIdentity()) {\n\t\t\tvar decomposed = matrix.decompose();\n\t\t\tif (decomposed) {\n\t\t\t\tvar parts = [],\n\t\t\t\t\tangle = decomposed.rotation,\n\t\t\t\t\tscale = decomposed.scaling,\n\t\t\t\t\tskew = decomposed.skewing;\n\t\t\t\tif (trans && !trans.isZero())\n\t\t\t\t\tparts.push('translate(' + formatter.point(trans) + ')');\n\t\t\t\tif (angle)\n\t\t\t\t\tparts.push('rotate(' + formatter.number(angle) + ')');\n\t\t\t\tif (!Numerical.isZero(scale.x - 1)\n\t\t\t\t\t\t|| !Numerical.isZero(scale.y - 1))\n\t\t\t\t\tparts.push('scale(' + formatter.point(scale) +')');\n\t\t\t\tif (skew.x)\n\t\t\t\t\tparts.push('skewX(' + formatter.number(skew.x) + ')');\n\t\t\t\tif (skew.y)\n\t\t\t\t\tparts.push('skewY(' + formatter.number(skew.y) + ')');\n\t\t\t\tattrs.transform = parts.join(' ');\n\t\t\t} else {\n\t\t\t\tattrs.transform = 'matrix(' + matrix.getValues().join(',') + ')';\n\t\t\t}\n\t\t}\n\t\treturn attrs;\n\t}\n\n\tfunction exportGroup(item, options) {\n\t\tvar attrs = getTransform(item._matrix),\n\t\t\tchildren = item._children;\n\t\tvar node = SvgElement.create('g', attrs, formatter);\n\t\tfor (var i = 0, l = children.length; i < l; i++) {\n\t\t\tvar child = children[i];\n\t\t\tvar childNode = exportSVG(child, options);\n\t\t\tif (childNode) {\n\t\t\t\tif (child.isClipMask()) {\n\t\t\t\t\tvar clip = SvgElement.create('clipPath');\n\t\t\t\t\tclip.appendChild(childNode);\n\t\t\t\t\tsetDefinition(child, clip, 'clip');\n\t\t\t\t\tSvgElement.set(node, {\n\t\t\t\t\t\t'clip-path': 'url(#' + clip.id + ')'\n\t\t\t\t\t});\n\t\t\t\t} else {\n\t\t\t\t\tnode.appendChild(childNode);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn node;\n\t}\n\n\tfunction exportRaster(item, options) {\n\t\tvar attrs = getTransform(item._matrix, true),\n\t\t\tsize = item.getSize(),\n\t\t\timage = item.getImage();\n\t\tattrs.x -= size.width / 2;\n\t\tattrs.y -= size.height / 2;\n\t\tattrs.width = size.width;\n\t\tattrs.height = size.height;\n\t\tattrs.href = options.embedImages == false && image && image.src\n\t\t\t\t|| item.toDataURL();\n\t\treturn SvgElement.create('image', attrs, formatter);\n\t}\n\n\tfunction exportPath(item, options) {\n\t\tvar matchShapes = options.matchShapes;\n\t\tif (matchShapes) {\n\t\t\tvar shape = item.toShape(false);\n\t\t\tif (shape)\n\t\t\t\treturn exportShape(shape, options);\n\t\t}\n\t\tvar segments = item._segments,\n\t\t\tlength = segments.length,\n\t\t\ttype,\n\t\t\tattrs = getTransform(item._matrix);\n\t\tif (matchShapes && length >= 2 && !item.hasHandles()) {\n\t\t\tif (length > 2) {\n\t\t\t\ttype = item._closed ? 'polygon' : 'polyline';\n\t\t\t\tvar parts = [];\n\t\t\t\tfor (var i = 0; i < length; i++) {\n\t\t\t\t\tparts.push(formatter.point(segments[i]._point));\n\t\t\t\t}\n\t\t\t\tattrs.points = parts.join(' ');\n\t\t\t} else {\n\t\t\t\ttype = 'line';\n\t\t\t\tvar start = segments[0]._point,\n\t\t\t\t\tend = segments[1]._point;\n\t\t\t\tattrs.set({\n\t\t\t\t\tx1: start.x,\n\t\t\t\t\ty1: start.y,\n\t\t\t\t\tx2: end.x,\n\t\t\t\t\ty2: end.y\n\t\t\t\t});\n\t\t\t}\n\t\t} else {\n\t\t\ttype = 'path';\n\t\t\tattrs.d = item.getPathData(null, options.precision);\n\t\t}\n\t\treturn SvgElement.create(type, attrs, formatter);\n\t}\n\n\tfunction exportShape(item) {\n\t\tvar type = item._type,\n\t\t\tradius = item._radius,\n\t\t\tattrs = getTransform(item._matrix, true, type !== 'rectangle');\n\t\tif (type === 'rectangle') {\n\t\t\ttype = 'rect';\n\t\t\tvar size = item._size,\n\t\t\t\twidth = size.width,\n\t\t\t\theight = size.height;\n\t\t\tattrs.x -= width / 2;\n\t\t\tattrs.y -= height / 2;\n\t\t\tattrs.width = width;\n\t\t\tattrs.height = height;\n\t\t\tif (radius.isZero())\n\t\t\t\tradius = null;\n\t\t}\n\t\tif (radius) {\n\t\t\tif (type === 'circle') {\n\t\t\t\tattrs.r = radius;\n\t\t\t} else {\n\t\t\t\tattrs.rx = radius.width;\n\t\t\t\tattrs.ry = radius.height;\n\t\t\t}\n\t\t}\n\t\treturn SvgElement.create(type, attrs, formatter);\n\t}\n\n\tfunction exportCompoundPath(item, options) {\n\t\tvar attrs = getTransform(item._matrix);\n\t\tvar data = item.getPathData(null, options.precision);\n\t\tif (data)\n\t\t\tattrs.d = data;\n\t\treturn SvgElement.create('path', attrs, formatter);\n\t}\n\n\tfunction exportSymbolItem(item, options) {\n\t\tvar attrs = getTransform(item._matrix, true),\n\t\t\tdefinition = item._definition,\n\t\t\tnode = getDefinition(definition, 'symbol'),\n\t\t\tdefinitionItem = definition._item,\n\t\t\tbounds = definitionItem.getStrokeBounds();\n\t\tif (!node) {\n\t\t\tnode = SvgElement.create('symbol', {\n\t\t\t\tviewBox: formatter.rectangle(bounds)\n\t\t\t});\n\t\t\tnode.appendChild(exportSVG(definitionItem, options));\n\t\t\tsetDefinition(definition, node, 'symbol');\n\t\t}\n\t\tattrs.href = '#' + node.id;\n\t\tattrs.x += bounds.x;\n\t\tattrs.y += bounds.y;\n\t\tattrs.width = bounds.width;\n\t\tattrs.height = bounds.height;\n\t\tattrs.overflow = 'visible';\n\t\treturn SvgElement.create('use', attrs, formatter);\n\t}\n\n\tfunction exportGradient(color) {\n\t\tvar gradientNode = getDefinition(color, 'color');\n\t\tif (!gradientNode) {\n\t\t\tvar gradient = color.getGradient(),\n\t\t\t\tradial = gradient._radial,\n\t\t\t\torigin = color.getOrigin(),\n\t\t\t\tdestination = color.getDestination(),\n\t\t\t\tattrs;\n\t\t\tif (radial) {\n\t\t\t\tattrs = {\n\t\t\t\t\tcx: origin.x,\n\t\t\t\t\tcy: origin.y,\n\t\t\t\t\tr: origin.getDistance(destination)\n\t\t\t\t};\n\t\t\t\tvar highlight = color.getHighlight();\n\t\t\t\tif (highlight) {\n\t\t\t\t\tattrs.fx = highlight.x;\n\t\t\t\t\tattrs.fy = highlight.y;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tattrs = {\n\t\t\t\t\tx1: origin.x,\n\t\t\t\t\ty1: origin.y,\n\t\t\t\t\tx2: destination.x,\n\t\t\t\t\ty2: destination.y\n\t\t\t\t};\n\t\t\t}\n\t\t\tattrs.gradientUnits = 'userSpaceOnUse';\n\t\t\tgradientNode = SvgElement.create((radial ? 'radial' : 'linear')\n\t\t\t\t\t+ 'Gradient', attrs, formatter);\n\t\t\tvar stops = gradient._stops;\n\t\t\tfor (var i = 0, l = stops.length; i < l; i++) {\n\t\t\t\tvar stop = stops[i],\n\t\t\t\t\tstopColor = stop._color,\n\t\t\t\t\talpha = stopColor.getAlpha(),\n\t\t\t\t\toffset = stop._offset;\n\t\t\t\tattrs = {\n\t\t\t\t\toffset: offset == null ? i / (l - 1) : offset\n\t\t\t\t};\n\t\t\t\tif (stopColor)\n\t\t\t\t\tattrs['stop-color'] = stopColor.toCSS(true);\n\t\t\t\tif (alpha < 1)\n\t\t\t\t\tattrs['stop-opacity'] = alpha;\n\t\t\t\tgradientNode.appendChild(\n\t\t\t\t\t\tSvgElement.create('stop', attrs, formatter));\n\t\t\t}\n\t\t\tsetDefinition(color, gradientNode, 'color');\n\t\t}\n\t\treturn 'url(#' + gradientNode.id + ')';\n\t}\n\n\tfunction exportText(item) {\n\t\tvar node = SvgElement.create('text', getTransform(item._matrix, true),\n\t\t\t\tformatter);\n\t\tnode.textContent = item._content;\n\t\treturn node;\n\t}\n\n\tvar exporters = {\n\t\tGroup: exportGroup,\n\t\tLayer: exportGroup,\n\t\tRaster: exportRaster,\n\t\tPath: exportPath,\n\t\tShape: exportShape,\n\t\tCompoundPath: exportCompoundPath,\n\t\tSymbolItem: exportSymbolItem,\n\t\tPointText: exportText\n\t};\n\n\tfunction applyStyle(item, node, isRoot) {\n\t\tvar attrs = {},\n\t\t\tparent = !isRoot && item.getParent(),\n\t\t\tstyle = [];\n\n\t\tif (item._name != null)\n\t\t\tattrs.id = item._name;\n\n\t\tBase.each(SvgStyles, function(entry) {\n\t\t\tvar get = entry.get,\n\t\t\t\ttype = entry.type,\n\t\t\t\tvalue = item[get]();\n\t\t\tif (entry.exportFilter\n\t\t\t\t\t? entry.exportFilter(item, value)\n\t\t\t\t\t: !parent || !Base.equals(parent[get](), value)) {\n\t\t\t\tif (type === 'color' && value != null) {\n\t\t\t\t\tvar alpha = value.getAlpha();\n\t\t\t\t\tif (alpha < 1)\n\t\t\t\t\t\tattrs[entry.attribute + '-opacity'] = alpha;\n\t\t\t\t}\n\t\t\t\tif (type === 'style') {\n\t\t\t\t\tstyle.push(entry.attribute + ': ' + value);\n\t\t\t\t} else {\n\t\t\t\t\tattrs[entry.attribute] = value == null ? 'none'\n\t\t\t\t\t\t\t: type === 'color' ? value.gradient\n\t\t\t\t\t\t\t\t? exportGradient(value, item)\n\t\t\t\t\t\t\t\t: value.toCSS(true)\n\t\t\t\t\t\t\t: type === 'array' ? value.join(',')\n\t\t\t\t\t\t\t: type === 'lookup' ? entry.toSVG[value]\n\t\t\t\t\t\t\t: value;\n\t\t\t\t}\n\t\t\t}\n\t\t});\n\n\t\tif (style.length)\n\t\t\tattrs.style = style.join(';');\n\n\t\tif (attrs.opacity === 1)\n\t\t\tdelete attrs.opacity;\n\n\t\tif (!item._visible)\n\t\t\tattrs.visibility = 'hidden';\n\n\t\treturn SvgElement.set(node, attrs, formatter);\n\t}\n\n\tvar definitions;\n\tfunction getDefinition(item, type) {\n\t\tif (!definitions)\n\t\t\tdefinitions = { ids: {}, svgs: {} };\n\t\treturn item && definitions.svgs[type + '-'\n\t\t\t\t+ (item._id || item.__id || (item.__id = UID.get('svg')))];\n\t}\n\n\tfunction setDefinition(item, node, type) {\n\t\tif (!definitions)\n\t\t\tgetDefinition();\n\t\tvar typeId = definitions.ids[type] = (definitions.ids[type] || 0) + 1;\n\t\tnode.id = type + '-' + typeId;\n\t\tdefinitions.svgs[type + '-' + (item._id || item.__id)] = node;\n\t}\n\n\tfunction exportDefinitions(node, options) {\n\t\tvar svg = node,\n\t\t\tdefs = null;\n\t\tif (definitions) {\n\t\t\tsvg = node.nodeName.toLowerCase() === 'svg' && node;\n\t\t\tfor (var i in definitions.svgs) {\n\t\t\t\tif (!defs) {\n\t\t\t\t\tif (!svg) {\n\t\t\t\t\t\tsvg = SvgElement.create('svg');\n\t\t\t\t\t\tsvg.appendChild(node);\n\t\t\t\t\t}\n\t\t\t\t\tdefs = svg.insertBefore(SvgElement.create('defs'),\n\t\t\t\t\t\t\tsvg.firstChild);\n\t\t\t\t}\n\t\t\t\tdefs.appendChild(definitions.svgs[i]);\n\t\t\t}\n\t\t\tdefinitions = null;\n\t\t}\n\t\treturn options.asString\n\t\t\t\t? new self.XMLSerializer().serializeToString(svg)\n\t\t\t\t: svg;\n\t}\n\n\tfunction exportSVG(item, options, isRoot) {\n\t\tvar exporter = exporters[item._class],\n\t\t\tnode = exporter && exporter(item, options);\n\t\tif (node) {\n\t\t\tvar onExport = options.onExport;\n\t\t\tif (onExport)\n\t\t\t\tnode = onExport(item, node, options) || node;\n\t\t\tvar data = JSON.stringify(item._data);\n\t\t\tif (data && data !== '{}' && data !== 'null')\n\t\t\t\tnode.setAttribute('data-paper-data', data);\n\t\t}\n\t\treturn node && applyStyle(item, node, isRoot);\n\t}\n\n\tfunction setOptions(options) {\n\t\tif (!options)\n\t\t\toptions = {};\n\t\tformatter = new Formatter(options.precision);\n\t\treturn options;\n\t}\n\n\tItem.inject({\n\t\texportSVG: function(options) {\n\t\t\toptions = setOptions(options);\n\t\t\treturn exportDefinitions(exportSVG(this, options, true), options);\n\t\t}\n\t});\n\n\tProject.inject({\n\t\texportSVG: function(options) {\n\t\t\toptions = setOptions(options);\n\t\t\tvar children = this._children,\n\t\t\t\tview = this.getView(),\n\t\t\t\tbounds = Base.pick(options.bounds, 'view'),\n\t\t\t\tmx = options.matrix || bounds === 'view' && view._matrix,\n\t\t\t\tmatrix = mx && Matrix.read([mx]),\n\t\t\t\trect = bounds === 'view'\n\t\t\t\t\t? new Rectangle([0, 0], view.getViewSize())\n\t\t\t\t\t: bounds === 'content'\n\t\t\t\t\t\t? Item._getBounds(children, matrix, { stroke: true })\n\t\t\t\t\t\t\t.rect\n\t\t\t\t\t\t: Rectangle.read([bounds], 0, { readNull: true }),\n\t\t\t\tattrs = {\n\t\t\t\t\tversion: '1.1',\n\t\t\t\t\txmlns: SvgElement.svg,\n\t\t\t\t\t'xmlns:xlink': SvgElement.xlink,\n\t\t\t\t};\n\t\t\tif (rect) {\n\t\t\t\tattrs.width = rect.width;\n\t\t\t\tattrs.height = rect.height;\n\t\t\t\tif (rect.x || rect.x === 0 || rect.y || rect.y === 0)\n\t\t\t\t\tattrs.viewBox = formatter.rectangle(rect);\n\t\t\t}\n\t\t\tvar node = SvgElement.create('svg', attrs, formatter),\n\t\t\t\tparent = node;\n\t\t\tif (matrix && !matrix.isIdentity()) {\n\t\t\t\tparent = node.appendChild(SvgElement.create('g',\n\t\t\t\t\t\tgetTransform(matrix), formatter));\n\t\t\t}\n\t\t\tfor (var i = 0, l = children.length; i < l; i++) {\n\t\t\t\tparent.appendChild(exportSVG(children[i], options, true));\n\t\t\t}\n\t\t\treturn exportDefinitions(node, options);\n\t\t}\n\t});\n};\n\nnew function() {\n\n\tvar definitions = {},\n\t\trootSize;\n\n\tfunction getValue(node, name, isString, allowNull, allowPercent,\n\t\t\tdefaultValue) {\n\t\tvar value = SvgElement.get(node, name) || defaultValue,\n\t\t\tres = value == null\n\t\t\t\t? allowNull\n\t\t\t\t\t? null\n\t\t\t\t\t: isString ? '' : 0\n\t\t\t\t: isString\n\t\t\t\t\t? value\n\t\t\t\t\t: parseFloat(value);\n\t\treturn /%\\s*$/.test(value)\n\t\t\t? (res / 100) * (allowPercent ? 1\n\t\t\t\t: rootSize[/x|^width/.test(name) ? 'width' : 'height'])\n\t\t\t: res;\n\t}\n\n\tfunction getPoint(node, x, y, allowNull, allowPercent, defaultX, defaultY) {\n\t\tx = getValue(node, x || 'x', false, allowNull, allowPercent, defaultX);\n\t\ty = getValue(node, y || 'y', false, allowNull, allowPercent, defaultY);\n\t\treturn allowNull && (x == null || y == null) ? null\n\t\t\t\t: new Point(x, y);\n\t}\n\n\tfunction getSize(node, w, h, allowNull, allowPercent) {\n\t\tw = getValue(node, w || 'width', false, allowNull, allowPercent);\n\t\th = getValue(node, h || 'height', false, allowNull, allowPercent);\n\t\treturn allowNull && (w == null || h == null) ? null\n\t\t\t\t: new Size(w, h);\n\t}\n\n\tfunction convertValue(value, type, lookup) {\n\t\treturn value === 'none' ? null\n\t\t\t\t: type === 'number' ? parseFloat(value)\n\t\t\t\t: type === 'array' ?\n\t\t\t\t\tvalue ? value.split(/[\\s,]+/g).map(parseFloat) : []\n\t\t\t\t: type === 'color' ? getDefinition(value) || value\n\t\t\t\t: type === 'lookup' ? lookup[value]\n\t\t\t\t: value;\n\t}\n\n\tfunction importGroup(node, type, options, isRoot) {\n\t\tvar nodes = node.childNodes,\n\t\t\tisClip = type === 'clippath',\n\t\t\tisDefs = type === 'defs',\n\t\t\titem = new Group(),\n\t\t\tproject = item._project,\n\t\t\tcurrentStyle = project._currentStyle,\n\t\t\tchildren = [];\n\t\tif (!isClip && !isDefs) {\n\t\t\titem = applyAttributes(item, node, isRoot);\n\t\t\tproject._currentStyle = item._style.clone();\n\t\t}\n\t\tif (isRoot) {\n\t\t\tvar defs = node.querySelectorAll('defs');\n\t\t\tfor (var i = 0, l = defs.length; i < l; i++) {\n\t\t\t\timportNode(defs[i], options, false);\n\t\t\t}\n\t\t}\n\t\tfor (var i = 0, l = nodes.length; i < l; i++) {\n\t\t\tvar childNode = nodes[i],\n\t\t\t\tchild;\n\t\t\tif (childNode.nodeType === 1\n\t\t\t\t\t&& !/^defs$/i.test(childNode.nodeName)\n\t\t\t\t\t&& (child = importNode(childNode, options, false))\n\t\t\t\t\t&& !(child instanceof SymbolDefinition))\n\t\t\t\tchildren.push(child);\n\t\t}\n\t\titem.addChildren(children);\n\t\tif (isClip)\n\t\t\titem = applyAttributes(item.reduce(), node, isRoot);\n\t\tproject._currentStyle = currentStyle;\n\t\tif (isClip || isDefs) {\n\t\t\titem.remove();\n\t\t\titem = null;\n\t\t}\n\t\treturn item;\n\t}\n\n\tfunction importPoly(node, type) {\n\t\tvar coords = node.getAttribute('points').match(\n\t\t\t\t\t/[+-]?(?:\\d*\\.\\d+|\\d+\\.?)(?:[eE][+-]?\\d+)?/g),\n\t\t\tpoints = [];\n\t\tfor (var i = 0, l = coords.length; i < l; i += 2)\n\t\t\tpoints.push(new Point(\n\t\t\t\t\tparseFloat(coords[i]),\n\t\t\t\t\tparseFloat(coords[i + 1])));\n\t\tvar path = new Path(points);\n\t\tif (type === 'polygon')\n\t\t\tpath.closePath();\n\t\treturn path;\n\t}\n\n\tfunction importPath(node) {\n\t\treturn PathItem.create(node.getAttribute('d'));\n\t}\n\n\tfunction importGradient(node, type) {\n\t\tvar id = (getValue(node, 'href', true) || '').substring(1),\n\t\t\tradial = type === 'radialgradient',\n\t\t\tgradient;\n\t\tif (id) {\n\t\t\tgradient = definitions[id].getGradient();\n\t\t\tif (gradient._radial ^ radial) {\n\t\t\t\tgradient = gradient.clone();\n\t\t\t\tgradient._radial = radial;\n\t\t\t}\n\t\t} else {\n\t\t\tvar nodes = node.childNodes,\n\t\t\t\tstops = [];\n\t\t\tfor (var i = 0, l = nodes.length; i < l; i++) {\n\t\t\t\tvar child = nodes[i];\n\t\t\t\tif (child.nodeType === 1)\n\t\t\t\t\tstops.push(applyAttributes(new GradientStop(), child));\n\t\t\t}\n\t\t\tgradient = new Gradient(stops, radial);\n\t\t}\n\t\tvar origin, destination, highlight,\n\t\t\tscaleToBounds = getValue(node, 'gradientUnits', true) !==\n\t\t\t\t'userSpaceOnUse';\n\t\tif (radial) {\n\t\t\torigin = getPoint(node, 'cx', 'cy', false, scaleToBounds,\n\t\t\t\t'50%', '50%');\n\t\t\tdestination = origin.add(\n\t\t\t\tgetValue(node, 'r', false, false, scaleToBounds, '50%'), 0);\n\t\t\thighlight = getPoint(node, 'fx', 'fy', true, scaleToBounds);\n\t\t} else {\n\t\t\torigin = getPoint(node, 'x1', 'y1', false, scaleToBounds,\n\t\t\t\t'0%', '0%');\n\t\t\tdestination = getPoint(node, 'x2', 'y2', false, scaleToBounds,\n\t\t\t\t'100%', '0%');\n\t\t}\n\t\tvar color = applyAttributes(\n\t\t\t\tnew Color(gradient, origin, destination, highlight), node);\n\t\tcolor._scaleToBounds = scaleToBounds;\n\t\treturn null;\n\t}\n\n\tvar importers = {\n\t\t'#document': function (node, type, options, isRoot) {\n\t\t\tvar nodes = node.childNodes;\n\t\t\tfor (var i = 0, l = nodes.length; i < l; i++) {\n\t\t\t\tvar child = nodes[i];\n\t\t\t\tif (child.nodeType === 1)\n\t\t\t\t\treturn importNode(child, options, isRoot);\n\t\t\t}\n\t\t},\n\t\tg: importGroup,\n\t\tsvg: importGroup,\n\t\tclippath: importGroup,\n\t\tpolygon: importPoly,\n\t\tpolyline: importPoly,\n\t\tpath: importPath,\n\t\tlineargradient: importGradient,\n\t\tradialgradient: importGradient,\n\n\t\timage: function (node) {\n\t\t\tvar raster = new Raster(getValue(node, 'href', true));\n\t\t\traster.on('load', function() {\n\t\t\t\tvar size = getSize(node);\n\t\t\t\tthis.setSize(size);\n\t\t\t\tvar center = getPoint(node).add(size.divide(2));\n\t\t\t\tthis._matrix.append(new Matrix().translate(center));\n\t\t\t});\n\t\t\treturn raster;\n\t\t},\n\n\t\tsymbol: function(node, type, options, isRoot) {\n\t\t\treturn new SymbolDefinition(\n\t\t\t\t\timportGroup(node, type, options, isRoot), true);\n\t\t},\n\n\t\tdefs: importGroup,\n\n\t\tuse: function(node) {\n\t\t\tvar id = (getValue(node, 'href', true) || '').substring(1),\n\t\t\t\tdefinition = definitions[id],\n\t\t\t\tpoint = getPoint(node);\n\t\t\treturn definition\n\t\t\t\t\t? definition instanceof SymbolDefinition\n\t\t\t\t\t\t? definition.place(point)\n\t\t\t\t\t\t: definition.clone().translate(point)\n\t\t\t\t\t: null;\n\t\t},\n\n\t\tcircle: function(node) {\n\t\t\treturn new Shape.Circle(\n\t\t\t\t\tgetPoint(node, 'cx', 'cy'),\n\t\t\t\t\tgetValue(node, 'r'));\n\t\t},\n\n\t\tellipse: function(node) {\n\t\t\treturn new Shape.Ellipse({\n\t\t\t\tcenter: getPoint(node, 'cx', 'cy'),\n\t\t\t\tradius: getSize(node, 'rx', 'ry')\n\t\t\t});\n\t\t},\n\n\t\trect: function(node) {\n\t\t\treturn new Shape.Rectangle(new Rectangle(\n\t\t\t\t\t\tgetPoint(node),\n\t\t\t\t\t\tgetSize(node)\n\t\t\t\t\t), getSize(node, 'rx', 'ry'));\n\t\t\t},\n\n\t\tline: function(node) {\n\t\t\treturn new Path.Line(\n\t\t\t\t\tgetPoint(node, 'x1', 'y1'),\n\t\t\t\t\tgetPoint(node, 'x2', 'y2'));\n\t\t},\n\n\t\ttext: function(node) {\n\t\t\tvar text = new PointText(getPoint(node).add(\n\t\t\t\t\tgetPoint(node, 'dx', 'dy')));\n\t\t\ttext.setContent(node.textContent.trim() || '');\n\t\t\treturn text;\n\t\t},\n\n\t\tswitch: importGroup\n\t};\n\n\tfunction applyTransform(item, value, name, node) {\n\t\tif (item.transform) {\n\t\t\tvar transforms = (node.getAttribute(name) || '').split(/\\)\\s*/g),\n\t\t\t\tmatrix = new Matrix();\n\t\t\tfor (var i = 0, l = transforms.length; i < l; i++) {\n\t\t\t\tvar transform = transforms[i];\n\t\t\t\tif (!transform)\n\t\t\t\t\tbreak;\n\t\t\t\tvar parts = transform.split(/\\(\\s*/),\n\t\t\t\t\tcommand = parts[0],\n\t\t\t\t\tv = parts[1].split(/[\\s,]+/g);\n\t\t\t\tfor (var j = 0, m = v.length; j < m; j++)\n\t\t\t\t\tv[j] = parseFloat(v[j]);\n\t\t\t\tswitch (command) {\n\t\t\t\tcase 'matrix':\n\t\t\t\t\tmatrix.append(\n\t\t\t\t\t\t\tnew Matrix(v[0], v[1], v[2], v[3], v[4], v[5]));\n\t\t\t\t\tbreak;\n\t\t\t\tcase 'rotate':\n\t\t\t\t\tmatrix.rotate(v[0], v[1] || 0, v[2] || 0);\n\t\t\t\t\tbreak;\n\t\t\t\tcase 'translate':\n\t\t\t\t\tmatrix.translate(v[0], v[1] || 0);\n\t\t\t\t\tbreak;\n\t\t\t\tcase 'scale':\n\t\t\t\t\tmatrix.scale(v);\n\t\t\t\t\tbreak;\n\t\t\t\tcase 'skewX':\n\t\t\t\t\tmatrix.skew(v[0], 0);\n\t\t\t\t\tbreak;\n\t\t\t\tcase 'skewY':\n\t\t\t\t\tmatrix.skew(0, v[0]);\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t\titem.transform(matrix);\n\t\t}\n\t}\n\n\tfunction applyOpacity(item, value, name) {\n\t\tvar key = name === 'fill-opacity' ? 'getFillColor' : 'getStrokeColor',\n\t\t\tcolor = item[key] && item[key]();\n\t\tif (color)\n\t\t\tcolor.setAlpha(parseFloat(value));\n\t}\n\n\tvar attributes = Base.set(Base.each(SvgStyles, function(entry) {\n\t\tthis[entry.attribute] = function(item, value) {\n\t\t\tif (item[entry.set]) {\n\t\t\t\titem[entry.set](convertValue(value, entry.type, entry.fromSVG));\n\t\t\t\tif (entry.type === 'color') {\n\t\t\t\t\tvar color = item[entry.get]();\n\t\t\t\t\tif (color) {\n\t\t\t\t\t\tif (color._scaleToBounds) {\n\t\t\t\t\t\t\tvar bounds = item.getBounds();\n\t\t\t\t\t\t\tcolor.transform(new Matrix()\n\t\t\t\t\t\t\t\t.translate(bounds.getPoint())\n\t\t\t\t\t\t\t\t.scale(bounds.getSize()));\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\t}, {}), {\n\t\tid: function(item, value) {\n\t\t\tdefinitions[value] = item;\n\t\t\tif (item.setName)\n\t\t\t\titem.setName(value);\n\t\t},\n\n\t\t'clip-path': function(item, value) {\n\t\t\tvar clip = getDefinition(value);\n\t\t\tif (clip) {\n\t\t\t\tclip = clip.clone();\n\t\t\t\tclip.setClipMask(true);\n\t\t\t\tif (item instanceof Group) {\n\t\t\t\t\titem.insertChild(0, clip);\n\t\t\t\t} else {\n\t\t\t\t\treturn new Group(clip, item);\n\t\t\t\t}\n\t\t\t}\n\t\t},\n\n\t\tgradientTransform: applyTransform,\n\t\ttransform: applyTransform,\n\n\t\t'fill-opacity': applyOpacity,\n\t\t'stroke-opacity': applyOpacity,\n\n\t\tvisibility: function(item, value) {\n\t\t\tif (item.setVisible)\n\t\t\t\titem.setVisible(value === 'visible');\n\t\t},\n\n\t\tdisplay: function(item, value) {\n\t\t\tif (item.setVisible)\n\t\t\t\titem.setVisible(value !== null);\n\t\t},\n\n\t\t'stop-color': function(item, value) {\n\t\t\tif (item.setColor)\n\t\t\t\titem.setColor(value);\n\t\t},\n\n\t\t'stop-opacity': function(item, value) {\n\t\t\tif (item._color)\n\t\t\t\titem._color.setAlpha(parseFloat(value));\n\t\t},\n\n\t\toffset: function(item, value) {\n\t\t\tif (item.setOffset) {\n\t\t\t\tvar percent = value.match(/(.*)%$/);\n\t\t\t\titem.setOffset(percent ? percent[1] / 100 : parseFloat(value));\n\t\t\t}\n\t\t},\n\n\t\tviewBox: function(item, value, name, node, styles) {\n\t\t\tvar rect = new Rectangle(convertValue(value, 'array')),\n\t\t\t\tsize = getSize(node, null, null, true),\n\t\t\t\tgroup,\n\t\t\t\tmatrix;\n\t\t\tif (item instanceof Group) {\n\t\t\t\tvar scale = size ? size.divide(rect.getSize()) : 1,\n\t\t\t\tmatrix = new Matrix().scale(scale)\n\t\t\t\t\t\t.translate(rect.getPoint().negate());\n\t\t\t\tgroup = item;\n\t\t\t} else if (item instanceof SymbolDefinition) {\n\t\t\t\tif (size)\n\t\t\t\t\trect.setSize(size);\n\t\t\t\tgroup = item._item;\n\t\t\t}\n\t\t\tif (group) {\n\t\t\t\tif (getAttribute(node, 'overflow', styles) !== 'visible') {\n\t\t\t\t\tvar clip = new Shape.Rectangle(rect);\n\t\t\t\t\tclip.setClipMask(true);\n\t\t\t\t\tgroup.addChild(clip);\n\t\t\t\t}\n\t\t\t\tif (matrix)\n\t\t\t\t\tgroup.transform(matrix);\n\t\t\t}\n\t\t}\n\t});\n\n\tfunction getAttribute(node, name, styles) {\n\t\tvar attr = node.attributes[name],\n\t\t\tvalue = attr && attr.value;\n\t\tif (!value && node.style) {\n\t\t\tvar style = Base.camelize(name);\n\t\t\tvalue = node.style[style];\n\t\t\tif (!value && styles.node[style] !== styles.parent[style])\n\t\t\t\tvalue = styles.node[style];\n\t\t}\n\t\treturn !value ? undefined\n\t\t\t\t: value === 'none' ? null\n\t\t\t\t: value;\n\t}\n\n\tfunction applyAttributes(item, node, isRoot) {\n\t\tvar parent = node.parentNode,\n\t\t\tstyles = {\n\t\t\t\tnode: DomElement.getStyles(node) || {},\n\t\t\t\tparent: !isRoot && !/^defs$/i.test(parent.tagName)\n\t\t\t\t\t\t&& DomElement.getStyles(parent) || {}\n\t\t\t};\n\t\tBase.each(attributes, function(apply, name) {\n\t\t\tvar value = getAttribute(node, name, styles);\n\t\t\titem = value !== undefined\n\t\t\t\t\t&& apply(item, value, name, node, styles) || item;\n\t\t});\n\t\treturn item;\n\t}\n\n\tfunction getDefinition(value) {\n\t\tvar match = value && value.match(/\\((?:[\"'#]*)([^\"')]+)/),\n\t\t\tname = match && match[1],\n\t\t\tres = name && definitions[window\n\t\t\t\t\t? name.replace(window.location.href.split('#')[0] + '#', '')\n\t\t\t\t\t: name];\n\t\tif (res && res._scaleToBounds) {\n\t\t\tres = res.clone();\n\t\t\tres._scaleToBounds = true;\n\t\t}\n\t\treturn res;\n\t}\n\n\tfunction importNode(node, options, isRoot) {\n\t\tvar type = node.nodeName.toLowerCase(),\n\t\t\tisElement = type !== '#document',\n\t\t\tbody = document.body,\n\t\t\tcontainer,\n\t\t\tparent,\n\t\t\tnext;\n\t\tif (isRoot && isElement) {\n\t\t\trootSize = paper.getView().getSize();\n\t\t\trootSize = getSize(node, null, null, true) || rootSize;\n\t\t\tcontainer = SvgElement.create('svg', {\n\t\t\t\tstyle: 'stroke-width: 1px; stroke-miterlimit: 10'\n\t\t\t});\n\t\t\tparent = node.parentNode;\n\t\t\tnext = node.nextSibling;\n\t\t\tcontainer.appendChild(node);\n\t\t\tbody.appendChild(container);\n\t\t}\n\t\tvar settings = paper.settings,\n\t\t\tapplyMatrix = settings.applyMatrix,\n\t\t\tinsertItems = settings.insertItems;\n\t\tsettings.applyMatrix = false;\n\t\tsettings.insertItems = false;\n\t\tvar importer = importers[type],\n\t\t\titem = importer && importer(node, type, options, isRoot) || null;\n\t\tsettings.insertItems = insertItems;\n\t\tsettings.applyMatrix = applyMatrix;\n\t\tif (item) {\n\t\t\tif (isElement && !(item instanceof Group))\n\t\t\t\titem = applyAttributes(item, node, isRoot);\n\t\t\tvar onImport = options.onImport,\n\t\t\t\tdata = isElement && node.getAttribute('data-paper-data');\n\t\t\tif (onImport)\n\t\t\t\titem = onImport(node, item, options) || item;\n\t\t\tif (options.expandShapes && item instanceof Shape) {\n\t\t\t\titem.remove();\n\t\t\t\titem = item.toPath();\n\t\t\t}\n\t\t\tif (data)\n\t\t\t\titem._data = JSON.parse(data);\n\t\t}\n\t\tif (container) {\n\t\t\tbody.removeChild(container);\n\t\t\tif (parent) {\n\t\t\t\tif (next) {\n\t\t\t\t\tparent.insertBefore(node, next);\n\t\t\t\t} else {\n\t\t\t\t\tparent.appendChild(node);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tif (isRoot) {\n\t\t\tdefinitions = {};\n\t\t\tif (item && Base.pick(options.applyMatrix, applyMatrix))\n\t\t\t\titem.matrix.apply(true, true);\n\t\t}\n\t\treturn item;\n\t}\n\n\tfunction importSVG(source, options, owner) {\n\t\tif (!source)\n\t\t\treturn null;\n\t\toptions = typeof options === 'function' ? { onLoad: options }\n\t\t\t\t: options || {};\n\t\tvar scope = paper,\n\t\t\titem = null;\n\n\t\tfunction onLoad(svg) {\n\t\t\ttry {\n\t\t\t\tvar node = typeof svg === 'object'\n\t\t\t\t\t? svg\n\t\t\t\t\t: new self.DOMParser().parseFromString(\n\t\t\t\t\t\tsvg.trim(),\n\t\t\t\t\t\t'image/svg+xml'\n\t\t\t\t\t);\n\t\t\t\tif (!node.nodeName) {\n\t\t\t\t\tnode = null;\n\t\t\t\t\tthrow new Error('Unsupported SVG source: ' + source);\n\t\t\t\t}\n\t\t\t\tpaper = scope;\n\t\t\t\titem = importNode(node, options, true);\n\t\t\t\tif (!options || options.insert !== false) {\n\t\t\t\t\towner._insertItem(undefined, item);\n\t\t\t\t}\n\t\t\t\tvar onLoad = options.onLoad;\n\t\t\t\tif (onLoad)\n\t\t\t\t\tonLoad(item, svg);\n\t\t\t} catch (e) {\n\t\t\t\tonError(e);\n\t\t\t}\n\t\t}\n\n\t\tfunction onError(message, status) {\n\t\t\tvar onError = options.onError;\n\t\t\tif (onError) {\n\t\t\t\tonError(message, status);\n\t\t\t} else {\n\t\t\t\tthrow new Error(message);\n\t\t\t}\n\t\t}\n\n\t\tif (typeof source === 'string' && !/^[\\s\\S]*</.test(source)) {\n\t\t\tvar node = document.getElementById(source);\n\t\t\tif (node) {\n\t\t\t\tonLoad(node);\n\t\t\t} else {\n\t\t\t\tHttp.request({\n\t\t\t\t\turl: source,\n\t\t\t\t\tasync: true,\n\t\t\t\t\tonLoad: onLoad,\n\t\t\t\t\tonError: onError\n\t\t\t\t});\n\t\t\t}\n\t\t} else if (typeof File !== 'undefined' && source instanceof File) {\n\t\t\tvar reader = new FileReader();\n\t\t\treader.onload = function() {\n\t\t\t\tonLoad(reader.result);\n\t\t\t};\n\t\t\treader.onerror = function() {\n\t\t\t\tonError(reader.error);\n\t\t\t};\n\t\t\treturn reader.readAsText(source);\n\t\t} else {\n\t\t\tonLoad(source);\n\t\t}\n\n\t\treturn item;\n\t}\n\n\tItem.inject({\n\t\timportSVG: function(node, options) {\n\t\t\treturn importSVG(node, options, this);\n\t\t}\n\t});\n\n\tProject.inject({\n\t\timportSVG: function(node, options) {\n\t\t\tthis.activate();\n\t\t\treturn importSVG(node, options, this);\n\t\t}\n\t});\n};\n\nBase.exports.PaperScript = function() {\n\tvar global = this,\n\t\tacorn = global.acorn;\n\tif (!acorn && \"function\" !== 'undefined') {\n\t\ttry { acorn = __webpack_require__(/*! acorn */ \"./node_modules/acorn/dist/acorn.js\"); } catch(e) {}\n\t}\n\tif (!acorn) {\n\t\tvar exports, module;\n\t\tacorn = exports = module = {};\n\n(function(root, mod) {\n if (typeof exports == \"object\" && typeof module == \"object\") return mod(exports);\n if (true) return !(__WEBPACK_AMD_DEFINE_ARRAY__ = [exports], __WEBPACK_AMD_DEFINE_FACTORY__ = (mod),\n\t\t__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?\n\t\t(__WEBPACK_AMD_DEFINE_FACTORY__.apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__)) : __WEBPACK_AMD_DEFINE_FACTORY__),\n\t\t__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));\n mod(root.acorn || (root.acorn = {}));\n})(this, function(exports) {\n \"use strict\";\n\n exports.version = \"0.5.0\";\n\n var options, input, inputLen, sourceFile;\n\n exports.parse = function(inpt, opts) {\n\tinput = String(inpt); inputLen = input.length;\n\tsetOptions(opts);\n\tinitTokenState();\n\treturn parseTopLevel(options.program);\n };\n\n var defaultOptions = exports.defaultOptions = {\n\tecmaVersion: 5,\n\tstrictSemicolons: false,\n\tallowTrailingCommas: true,\n\tforbidReserved: false,\n\tallowReturnOutsideFunction: false,\n\tlocations: false,\n\tonComment: null,\n\tranges: false,\n\tprogram: null,\n\tsourceFile: null,\n\tdirectSourceFile: null\n };\n\n function setOptions(opts) {\n\toptions = opts || {};\n\tfor (var opt in defaultOptions) if (!Object.prototype.hasOwnProperty.call(options, opt))\n\t options[opt] = defaultOptions[opt];\n\tsourceFile = options.sourceFile || null;\n }\n\n var getLineInfo = exports.getLineInfo = function(input, offset) {\n\tfor (var line = 1, cur = 0;;) {\n\t lineBreak.lastIndex = cur;\n\t var match = lineBreak.exec(input);\n\t if (match && match.index < offset) {\n\t\t++line;\n\t\tcur = match.index + match[0].length;\n\t } else break;\n\t}\n\treturn {line: line, column: offset - cur};\n };\n\n exports.tokenize = function(inpt, opts) {\n\tinput = String(inpt); inputLen = input.length;\n\tsetOptions(opts);\n\tinitTokenState();\n\n\tvar t = {};\n\tfunction getToken(forceRegexp) {\n\t lastEnd = tokEnd;\n\t readToken(forceRegexp);\n\t t.start = tokStart; t.end = tokEnd;\n\t t.startLoc = tokStartLoc; t.endLoc = tokEndLoc;\n\t t.type = tokType; t.value = tokVal;\n\t return t;\n\t}\n\tgetToken.jumpTo = function(pos, reAllowed) {\n\t tokPos = pos;\n\t if (options.locations) {\n\t\ttokCurLine = 1;\n\t\ttokLineStart = lineBreak.lastIndex = 0;\n\t\tvar match;\n\t\twhile ((match = lineBreak.exec(input)) && match.index < pos) {\n\t\t ++tokCurLine;\n\t\t tokLineStart = match.index + match[0].length;\n\t\t}\n\t }\n\t tokRegexpAllowed = reAllowed;\n\t skipSpace();\n\t};\n\treturn getToken;\n };\n\n var tokPos;\n\n var tokStart, tokEnd;\n\n var tokStartLoc, tokEndLoc;\n\n var tokType, tokVal;\n\n var tokRegexpAllowed;\n\n var tokCurLine, tokLineStart;\n\n var lastStart, lastEnd, lastEndLoc;\n\n var inFunction, labels, strict;\n\n function raise(pos, message) {\n\tvar loc = getLineInfo(input, pos);\n\tmessage += \" (\" + loc.line + \":\" + loc.column + \")\";\n\tvar err = new SyntaxError(message);\n\terr.pos = pos; err.loc = loc; err.raisedAt = tokPos;\n\tthrow err;\n }\n\n var empty = [];\n\n var _num = {type: \"num\"}, _regexp = {type: \"regexp\"}, _string = {type: \"string\"};\n var _name = {type: \"name\"}, _eof = {type: \"eof\"};\n\n var _break = {keyword: \"break\"}, _case = {keyword: \"case\", beforeExpr: true}, _catch = {keyword: \"catch\"};\n var _continue = {keyword: \"continue\"}, _debugger = {keyword: \"debugger\"}, _default = {keyword: \"default\"};\n var _do = {keyword: \"do\", isLoop: true}, _else = {keyword: \"else\", beforeExpr: true};\n var _finally = {keyword: \"finally\"}, _for = {keyword: \"for\", isLoop: true}, _function = {keyword: \"function\"};\n var _if = {keyword: \"if\"}, _return = {keyword: \"return\", beforeExpr: true}, _switch = {keyword: \"switch\"};\n var _throw = {keyword: \"throw\", beforeExpr: true}, _try = {keyword: \"try\"}, _var = {keyword: \"var\"};\n var _while = {keyword: \"while\", isLoop: true}, _with = {keyword: \"with\"}, _new = {keyword: \"new\", beforeExpr: true};\n var _this = {keyword: \"this\"};\n\n var _null = {keyword: \"null\", atomValue: null}, _true = {keyword: \"true\", atomValue: true};\n var _false = {keyword: \"false\", atomValue: false};\n\n var _in = {keyword: \"in\", binop: 7, beforeExpr: true};\n\n var keywordTypes = {\"break\": _break, \"case\": _case, \"catch\": _catch,\n\t\t\t\t\t \"continue\": _continue, \"debugger\": _debugger, \"default\": _default,\n\t\t\t\t\t \"do\": _do, \"else\": _else, \"finally\": _finally, \"for\": _for,\n\t\t\t\t\t \"function\": _function, \"if\": _if, \"return\": _return, \"switch\": _switch,\n\t\t\t\t\t \"throw\": _throw, \"try\": _try, \"var\": _var, \"while\": _while, \"with\": _with,\n\t\t\t\t\t \"null\": _null, \"true\": _true, \"false\": _false, \"new\": _new, \"in\": _in,\n\t\t\t\t\t \"instanceof\": {keyword: \"instanceof\", binop: 7, beforeExpr: true}, \"this\": _this,\n\t\t\t\t\t \"typeof\": {keyword: \"typeof\", prefix: true, beforeExpr: true},\n\t\t\t\t\t \"void\": {keyword: \"void\", prefix: true, beforeExpr: true},\n\t\t\t\t\t \"delete\": {keyword: \"delete\", prefix: true, beforeExpr: true}};\n\n var _bracketL = {type: \"[\", beforeExpr: true}, _bracketR = {type: \"]\"}, _braceL = {type: \"{\", beforeExpr: true};\n var _braceR = {type: \"}\"}, _parenL = {type: \"(\", beforeExpr: true}, _parenR = {type: \")\"};\n var _comma = {type: \",\", beforeExpr: true}, _semi = {type: \";\", beforeExpr: true};\n var _colon = {type: \":\", beforeExpr: true}, _dot = {type: \".\"}, _question = {type: \"?\", beforeExpr: true};\n\n var _slash = {binop: 10, beforeExpr: true}, _eq = {isAssign: true, beforeExpr: true};\n var _assign = {isAssign: true, beforeExpr: true};\n var _incDec = {postfix: true, prefix: true, isUpdate: true}, _prefix = {prefix: true, beforeExpr: true};\n var _logicalOR = {binop: 1, beforeExpr: true};\n var _logicalAND = {binop: 2, beforeExpr: true};\n var _bitwiseOR = {binop: 3, beforeExpr: true};\n var _bitwiseXOR = {binop: 4, beforeExpr: true};\n var _bitwiseAND = {binop: 5, beforeExpr: true};\n var _equality = {binop: 6, beforeExpr: true};\n var _relational = {binop: 7, beforeExpr: true};\n var _bitShift = {binop: 8, beforeExpr: true};\n var _plusMin = {binop: 9, prefix: true, beforeExpr: true};\n var _multiplyModulo = {binop: 10, beforeExpr: true};\n\n exports.tokTypes = {bracketL: _bracketL, bracketR: _bracketR, braceL: _braceL, braceR: _braceR,\n\t\t\t\t\t parenL: _parenL, parenR: _parenR, comma: _comma, semi: _semi, colon: _colon,\n\t\t\t\t\t dot: _dot, question: _question, slash: _slash, eq: _eq, name: _name, eof: _eof,\n\t\t\t\t\t num: _num, regexp: _regexp, string: _string};\n for (var kw in keywordTypes) exports.tokTypes[\"_\" + kw] = keywordTypes[kw];\n\n function makePredicate(words) {\n\twords = words.split(\" \");\n\tvar f = \"\", cats = [];\n\tout: for (var i = 0; i < words.length; ++i) {\n\t for (var j = 0; j < cats.length; ++j)\n\t\tif (cats[j][0].length == words[i].length) {\n\t\t cats[j].push(words[i]);\n\t\t continue out;\n\t\t}\n\t cats.push([words[i]]);\n\t}\n\tfunction compareTo(arr) {\n\t if (arr.length == 1) return f += \"return str === \" + JSON.stringify(arr[0]) + \";\";\n\t f += \"switch(str){\";\n\t for (var i = 0; i < arr.length; ++i) f += \"case \" + JSON.stringify(arr[i]) + \":\";\n\t f += \"return true}return false;\";\n\t}\n\n\tif (cats.length > 3) {\n\t cats.sort(function(a, b) {return b.length - a.length;});\n\t f += \"switch(str.length){\";\n\t for (var i = 0; i < cats.length; ++i) {\n\t\tvar cat = cats[i];\n\t\tf += \"case \" + cat[0].length + \":\";\n\t\tcompareTo(cat);\n\t }\n\t f += \"}\";\n\n\t} else {\n\t compareTo(words);\n\t}\n\treturn new Function(\"str\", f);\n }\n\n var isReservedWord3 = makePredicate(\"abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile\");\n\n var isReservedWord5 = makePredicate(\"class enum extends super const export import\");\n\n var isStrictReservedWord = makePredicate(\"implements interface let package private protected public static yield\");\n\n var isStrictBadIdWord = makePredicate(\"eval arguments\");\n\n var isKeyword = 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\"\\xaa\\xb5\\xba\\xc0-\\xd6\\xd8-\\xf6\\xf8-\\u02c1\\u02c6-\\u02d1\\u02e0-\\u02e4\\u02ec\\u02ee\\u0370-\\u0374\\u0376\\u0377\\u037a-\\u037d\\u0386\\u0388-\\u038a\\u038c\\u038e-\\u03a1\\u03a3-\\u03f5\\u03f7-\\u0481\\u048a-\\u0527\\u0531-\\u0556\\u0559\\u0561-\\u0587\\u05d0-\\u05ea\\u05f0-\\u05f2\\u0620-\\u064a\\u066e\\u066f\\u0671-\\u06d3\\u06d5\\u06e5\\u06e6\\u06ee\\u06ef\\u06fa-\\u06fc\\u06ff\\u0710\\u0712-\\u072f\\u074d-\\u07a5\\u07b1\\u07ca-\\u07ea\\u07f4\\u07f5\\u07fa\\u0800-\\u0815\\u081a\\u0824\\u0828\\u0840-\\u0858\\u08a0\\u08a2-\\u08ac\\u0904-\\u0939\\u093d\\u0950\\u0958-\\u0961\\u0971-\\u0977\\u0979-\\u097f\\u0985-\\u098c\\u098f\\u0990\\u0993-\\u09a8\\u09aa-\\u09b0\\u09b2\\u09b6-\\u09b9\\u09bd\\u09ce\\u09dc\\u09dd\\u09df-\\u09e1\\u09f0\\u09f1\\u0a05-\\u0a0a\\u0a0f\\u0a10\\u0a13-\\u0a28\\u0a2a-\\u0a30\\u0a32\\u0a33\\u0a35\\u0a36\\u0a38\\u0a39\\u0a59-\\u0a5c\\u0a5e\\u0a72-\\u0a74\\u0a85-\\u0a8d\\u0a8f-\\u0a91\\u0a93-\\u0aa8\\u0aaa-\\u0ab0\\u0ab2\\u0ab3\\u0ab5-\\u0ab9\\u0abd\\u0ad0\\u0ae0\\u0ae1\\u0b05-\\u0b0c\\u0b0f\\u0b10\\u0b13-\\u0b28\\u0b2a-\\u0b30\\u0b32\\u0b33\\u0b35-\\u0b39\\u0b3d\\u0b5c\\u0b5d\\u0b5f-\\u0b61\\u0b71\\u0b83\\u0b85-\\u0b8a\\u0b8e-\\u0b90\\u0b92-\\u0b95\\u0b99\\u0b9a\\u0b9c\\u0b9e\\u0b9f\\u0ba3\\u0ba4\\u0ba8-\\u0baa\\u0bae-\\u0bb9\\u0bd0\\u0c05-\\u0c0c\\u0c0e-\\u0c10\\u0c12-\\u0c28\\u0c2a-\\u0c33\\u0c35-\\u0c39\\u0c3d\\u0c58\\u0c59\\u0c60\\u0c61\\u0c85-\\u0c8c\\u0c8e-\\u0c90\\u0c92-\\u0ca8\\u0caa-\\u0cb3\\u0cb5-\\u0cb9\\u0cbd\\u0cde\\u0ce0\\u0ce1\\u0cf1\\u0cf2\\u0d05-\\u0d0c\\u0d0e-\\u0d10\\u0d12-\\u0d3a\\u0d3d\\u0d4e\\u0d60\\u0d61\\u0d7a-\\u0d7f\\u0d85-\\u0d96\\u0d9a-\\u0db1\\u0db3-\\u0dbb\\u0dbd\\u0dc0-\\u0dc6\\u0e01-\\u0e30\\u0e32\\u0e33\\u0e40-\\u0e46\\u0e81\\u0e82\\u0e84\\u0e87\\u0e88\\u0e8a\\u0e8d\\u0e94-\\u0e97\\u0e99-\\u0e9f\\u0ea1-\\u0ea3\\u0ea5\\u0ea7\\u0eaa\\u0eab\\u0ead-\\u0eb0\\u0eb2\\u0eb3\\u0ebd\\u0ec0-\\u0ec4\\u0ec6\\u0edc-\\u0edf\\u0f00\\u0f40-\\u0f47\\u0f49-\\u0f6c\\u0f88-\\u0f8c\\u1000-\\u102a\\u103f\\u1050-\\u1055\\u105a-\\u105d\\u1061\\u1065\\u1066\\u106e-\\u1070\\u1075-\\u1081\\u108e\\u10a0-\\u10c5\\u10c7\\u10cd\\u10d0-\\u10fa\\u10fc-\\u1248\\u124a-\\u124d\\u1250-\\u1256\\u1258\\u125a-\\u125d\\u1260-\\u1288\\u128a-\\u128d\\u1290-\\u12b0\\u12b2-\\u12b5\\u12b8-\\u12be\\u12c0\\u12c2-\\u12c5\\u12c8-\\u12d6\\u12d8-\\u1310\\u1312-\\u1315\\u1318-\\u135a\\u1380-\\u138f\\u13a0-\\u13f4\\u1401-\\u166c\\u166f-\\u167f\\u1681-\\u169a\\u16a0-\\u16ea\\u16ee-\\u16f0\\u1700-\\u170c\\u170e-\\u1711\\u1720-\\u1731\\u1740-\\u1751\\u1760-\\u176c\\u176e-\\u1770\\u1780-\\u17b3\\u17d7\\u17dc\\u1820-\\u1877\\u1880-\\u18a8\\u18aa\\u18b0-\\u18f5\\u1900-\\u191c\\u1950-\\u196d\\u1970-\\u1974\\u1980-\\u19ab\\u19c1-\\u19c7\\u1a00-\\u1a16\\u1a20-\\u1a54\\u1aa7\\u1b05-\\u1b33\\u1b45-\\u1b4b\\u1b83-\\u1ba0\\u1bae\\u1baf\\u1bba-\\u1be5\\u1c00-\\u1c23\\u1c4d-\\u1c4f\\u1c5a-\\u1c7d\\u1ce9-\\u1cec\\u1cee-\\u1cf1\\u1cf5\\u1cf6\\u1d00-\\u1dbf\\u1e00-\\u1f15\\u1f18-\\u1f1d\\u1f20-\\u1f45\\u1f48-\\u1f4d\\u1f50-\\u1f57\\u1f59\\u1f5b\\u1f5d\\u1f5f-\\u1f7d\\u1f80-\\u1fb4\\u1fb6-\\u1fbc\\u1fbe\\u1fc2-\\u1fc4\\u1fc6-\\u1fcc\\u1fd0-\\u1fd3\\u1fd6-\\u1fdb\\u1fe0-\\u1fec\\u1ff2-\\u1ff4\\u1ff6-\\u1ffc\\u2071\\u207f\\u2090-\\u209c\\u2102\\u2107\\u210a-\\u2113\\u2115\\u2119-\\u211d\\u2124\\u2126\\u2128\\u212a-\\u212d\\u212f-\\u2139\\u213c-\\u213f\\u2145-\\u2149\\u214e\\u2160-\\u2188\\u2c00-\\u2c2e\\u2c30-\\u2c5e\\u2c60-\\u2ce4\\u2ceb-\\u2cee\\u2cf2\\u2cf3\\u2d00-\\u2d25\\u2d27\\u2d2d\\u2d30-\\u2d67\\u2d6f\\u2d80-\\u2d96\\u2da0-\\u2da6\\u2da8-\\u2dae\\u2db0-\\u2db6\\u2db8-\\u2dbe\\u2dc0-\\u2dc6\\u2dc8-\\u2dce\\u2dd0-\\u2dd6\\u2dd8-\\u2dde\\u2e2f\\u3005-\\u3007\\u3021-\\u3029\\u3031-\\u3035\\u3038-\\u303c\\u3041-\\u3096\\u309d-\\u309f\\u30a1-\\u30fa\\u30fc-\\u30ff\\u3105-\\u312d\\u3131-\\u318e\\u31a0-\\u31ba\\u31f0-\\u31ff\\u3400-\\u4db5\\u4e00-\\u9fcc\\ua000-\\ua48c\\ua4d0-\\ua4fd\\ua500-\\ua60c\\ua610-\\ua61f\\ua62a\\ua62b\\ua640-\\ua66e\\ua67f-\\ua697\\ua6a0-\\ua6ef\\ua717-\\ua71f\\ua722-\\ua788\\ua78b-\\ua78e\\ua790-\\ua793\\ua7a0-\\ua7aa\\ua7f8-\\ua801\\ua803-\\ua805\\ua807-\\ua80a\\ua80c-\\ua822\\ua840-\\ua873\\ua882-\\ua8b3\\ua8f2-\\ua8f7\\ua8fb\\ua90a-\\ua925\\ua930-\\ua946\\ua960-\\ua97c\\ua984-\\ua9b2\\ua9cf\\uaa00-\\uaa28\\uaa40-\\uaa42\\uaa44-\\uaa4b\\uaa60-\\uaa76\\uaa7a\\uaa80-\\uaaaf\\uaab1\\uaab5\\uaab6\\uaab9-\\uaabd\\uaac0\\uaac2\\uaadb-\\uaadd\\uaae0-\\uaaea\\uaaf2-\\uaaf4\\uab01-\\uab06\\uab09-\\uab0e\\uab11-\\uab16\\uab20-\\uab26\\uab28-\\uab2e\\uabc0-\\uabe2\\uac00-\\ud7a3\\ud7b0-\\ud7c6\\ud7cb-\\ud7fb\\uf900-\\ufa6d\\ufa70-\\ufad9\\ufb00-\\ufb06\\ufb13-\\ufb17\\ufb1d\\ufb1f-\\ufb28\\ufb2a-\\ufb36\\ufb38-\\ufb3c\\ufb3e\\ufb40\\ufb41\\ufb43\\ufb44\\ufb46-\\ufbb1\\ufbd3-\\ufd3d\\ufd50-\\ufd8f\\ufd92-\\ufdc7\\ufdf0-\\ufdfb\\ufe70-\\ufe74\\ufe76-\\ufefc\\uff21-\\uff3a\\uff41-\\uff5a\\uff66-\\uffbe\\uffc2-\\uffc7\\uffca-\\uffcf\\uffd2-\\uffd7\\uffda-\\uffdc\";\n var nonASCIIidentifierChars = \"\\u0300-\\u036f\\u0483-\\u0487\\u0591-\\u05bd\\u05bf\\u05c1\\u05c2\\u05c4\\u05c5\\u05c7\\u0610-\\u061a\\u0620-\\u0649\\u0672-\\u06d3\\u06e7-\\u06e8\\u06fb-\\u06fc\\u0730-\\u074a\\u0800-\\u0814\\u081b-\\u0823\\u0825-\\u0827\\u0829-\\u082d\\u0840-\\u0857\\u08e4-\\u08fe\\u0900-\\u0903\\u093a-\\u093c\\u093e-\\u094f\\u0951-\\u0957\\u0962-\\u0963\\u0966-\\u096f\\u0981-\\u0983\\u09bc\\u09be-\\u09c4\\u09c7\\u09c8\\u09d7\\u09df-\\u09e0\\u0a01-\\u0a03\\u0a3c\\u0a3e-\\u0a42\\u0a47\\u0a48\\u0a4b-\\u0a4d\\u0a51\\u0a66-\\u0a71\\u0a75\\u0a81-\\u0a83\\u0abc\\u0abe-\\u0ac5\\u0ac7-\\u0ac9\\u0acb-\\u0acd\\u0ae2-\\u0ae3\\u0ae6-\\u0aef\\u0b01-\\u0b03\\u0b3c\\u0b3e-\\u0b44\\u0b47\\u0b48\\u0b4b-\\u0b4d\\u0b56\\u0b57\\u0b5f-\\u0b60\\u0b66-\\u0b6f\\u0b82\\u0bbe-\\u0bc2\\u0bc6-\\u0bc8\\u0bca-\\u0bcd\\u0bd7\\u0be6-\\u0bef\\u0c01-\\u0c03\\u0c46-\\u0c48\\u0c4a-\\u0c4d\\u0c55\\u0c56\\u0c62-\\u0c63\\u0c66-\\u0c6f\\u0c82\\u0c83\\u0cbc\\u0cbe-\\u0cc4\\u0cc6-\\u0cc8\\u0cca-\\u0ccd\\u0cd5\\u0cd6\\u0ce2-\\u0ce3\\u0ce6-\\u0cef\\u0d02\\u0d03\\u0d46-\\u0d48\\u0d57\\u0d62-\\u0d63\\u0d66-\\u0d6f\\u0d82\\u0d83\\u0dca\\u0dcf-\\u0dd4\\u0dd6\\u0dd8-\\u0ddf\\u0df2\\u0df3\\u0e34-\\u0e3a\\u0e40-\\u0e45\\u0e50-\\u0e59\\u0eb4-\\u0eb9\\u0ec8-\\u0ecd\\u0ed0-\\u0ed9\\u0f18\\u0f19\\u0f20-\\u0f29\\u0f35\\u0f37\\u0f39\\u0f41-\\u0f47\\u0f71-\\u0f84\\u0f86-\\u0f87\\u0f8d-\\u0f97\\u0f99-\\u0fbc\\u0fc6\\u1000-\\u1029\\u1040-\\u1049\\u1067-\\u106d\\u1071-\\u1074\\u1082-\\u108d\\u108f-\\u109d\\u135d-\\u135f\\u170e-\\u1710\\u1720-\\u1730\\u1740-\\u1750\\u1772\\u1773\\u1780-\\u17b2\\u17dd\\u17e0-\\u17e9\\u180b-\\u180d\\u1810-\\u1819\\u1920-\\u192b\\u1930-\\u193b\\u1951-\\u196d\\u19b0-\\u19c0\\u19c8-\\u19c9\\u19d0-\\u19d9\\u1a00-\\u1a15\\u1a20-\\u1a53\\u1a60-\\u1a7c\\u1a7f-\\u1a89\\u1a90-\\u1a99\\u1b46-\\u1b4b\\u1b50-\\u1b59\\u1b6b-\\u1b73\\u1bb0-\\u1bb9\\u1be6-\\u1bf3\\u1c00-\\u1c22\\u1c40-\\u1c49\\u1c5b-\\u1c7d\\u1cd0-\\u1cd2\\u1d00-\\u1dbe\\u1e01-\\u1f15\\u200c\\u200d\\u203f\\u2040\\u2054\\u20d0-\\u20dc\\u20e1\\u20e5-\\u20f0\\u2d81-\\u2d96\\u2de0-\\u2dff\\u3021-\\u3028\\u3099\\u309a\\ua640-\\ua66d\\ua674-\\ua67d\\ua69f\\ua6f0-\\ua6f1\\ua7f8-\\ua800\\ua806\\ua80b\\ua823-\\ua827\\ua880-\\ua881\\ua8b4-\\ua8c4\\ua8d0-\\ua8d9\\ua8f3-\\ua8f7\\ua900-\\ua909\\ua926-\\ua92d\\ua930-\\ua945\\ua980-\\ua983\\ua9b3-\\ua9c0\\uaa00-\\uaa27\\uaa40-\\uaa41\\uaa4c-\\uaa4d\\uaa50-\\uaa59\\uaa7b\\uaae0-\\uaae9\\uaaf2-\\uaaf3\\uabc0-\\uabe1\\uabec\\uabed\\uabf0-\\uabf9\\ufb20-\\ufb28\\ufe00-\\ufe0f\\ufe20-\\ufe26\\ufe33\\ufe34\\ufe4d-\\ufe4f\\uff10-\\uff19\\uff3f\";\n var nonASCIIidentifierStart = new RegExp(\"[\" + nonASCIIidentifierStartChars + \"]\");\n var nonASCIIidentifier = new RegExp(\"[\" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + \"]\");\n\n var newline = /[\\n\\r\\u2028\\u2029]/;\n\n var lineBreak = /\\r\\n|[\\n\\r\\u2028\\u2029]/g;\n\n var isIdentifierStart = exports.isIdentifierStart = function(code) {\n\tif (code < 65) return code === 36;\n\tif (code < 91) return true;\n\tif (code < 97) return code === 95;\n\tif (code < 123)return true;\n\treturn code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code));\n };\n\n var isIdentifierChar = exports.isIdentifierChar = function(code) {\n\tif (code < 48) return code === 36;\n\tif (code < 58) return true;\n\tif (code < 65) return false;\n\tif (code < 91) return true;\n\tif (code < 97) return code === 95;\n\tif (code < 123)return true;\n\treturn code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code));\n };\n\n function line_loc_t() {\n\tthis.line = tokCurLine;\n\tthis.column = tokPos - tokLineStart;\n }\n\n function initTokenState() {\n\ttokCurLine = 1;\n\ttokPos = tokLineStart = 0;\n\ttokRegexpAllowed = true;\n\tskipSpace();\n }\n\n function finishToken(type, val) {\n\ttokEnd = tokPos;\n\tif (options.locations) tokEndLoc = new line_loc_t;\n\ttokType = type;\n\tskipSpace();\n\ttokVal = val;\n\ttokRegexpAllowed = type.beforeExpr;\n }\n\n function skipBlockComment() {\n\tvar startLoc = options.onComment && options.locations && new line_loc_t;\n\tvar start = tokPos, end = input.indexOf(\"*/\", tokPos += 2);\n\tif (end === -1) raise(tokPos - 2, \"Unterminated comment\");\n\ttokPos = end + 2;\n\tif (options.locations) {\n\t lineBreak.lastIndex = start;\n\t var match;\n\t while ((match = lineBreak.exec(input)) && match.index < tokPos) {\n\t\t++tokCurLine;\n\t\ttokLineStart = match.index + match[0].length;\n\t }\n\t}\n\tif (options.onComment)\n\t options.onComment(true, input.slice(start + 2, end), start, tokPos,\n\t\t\t\t\t\tstartLoc, options.locations && new line_loc_t);\n }\n\n function skipLineComment() {\n\tvar start = tokPos;\n\tvar startLoc = options.onComment && options.locations && new line_loc_t;\n\tvar ch = input.charCodeAt(tokPos+=2);\n\twhile (tokPos < inputLen && ch !== 10 && ch !== 13 && ch !== 8232 && ch !== 8233) {\n\t ++tokPos;\n\t ch = input.charCodeAt(tokPos);\n\t}\n\tif (options.onComment)\n\t options.onComment(false, input.slice(start + 2, tokPos), start, tokPos,\n\t\t\t\t\t\tstartLoc, options.locations && new line_loc_t);\n }\n\n function skipSpace() {\n\twhile (tokPos < inputLen) {\n\t var ch = input.charCodeAt(tokPos);\n\t if (ch === 32) {\n\t\t++tokPos;\n\t } else if (ch === 13) {\n\t\t++tokPos;\n\t\tvar next = input.charCodeAt(tokPos);\n\t\tif (next === 10) {\n\t\t ++tokPos;\n\t\t}\n\t\tif (options.locations) {\n\t\t ++tokCurLine;\n\t\t tokLineStart = tokPos;\n\t\t}\n\t } else if (ch === 10 || ch === 8232 || ch === 8233) {\n\t\t++tokPos;\n\t\tif (options.locations) {\n\t\t ++tokCurLine;\n\t\t tokLineStart = tokPos;\n\t\t}\n\t } else if (ch > 8 && ch < 14) {\n\t\t++tokPos;\n\t } else if (ch === 47) {\n\t\tvar next = input.charCodeAt(tokPos + 1);\n\t\tif (next === 42) {\n\t\t skipBlockComment();\n\t\t} else if (next === 47) {\n\t\t skipLineComment();\n\t\t} else break;\n\t } else if (ch === 160) {\n\t\t++tokPos;\n\t } else if (ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {\n\t\t++tokPos;\n\t } else {\n\t\tbreak;\n\t }\n\t}\n }\n\n function readToken_dot() {\n\tvar next = input.charCodeAt(tokPos + 1);\n\tif (next >= 48 && next <= 57) return readNumber(true);\n\t++tokPos;\n\treturn finishToken(_dot);\n }\n\n function readToken_slash() {\n\tvar next = input.charCodeAt(tokPos + 1);\n\tif (tokRegexpAllowed) {++tokPos; return readRegexp();}\n\tif (next === 61) return finishOp(_assign, 2);\n\treturn finishOp(_slash, 1);\n }\n\n function readToken_mult_modulo() {\n\tvar next = input.charCodeAt(tokPos + 1);\n\tif (next === 61) return finishOp(_assign, 2);\n\treturn finishOp(_multiplyModulo, 1);\n }\n\n function readToken_pipe_amp(code) {\n\tvar next = input.charCodeAt(tokPos + 1);\n\tif (next === code) return finishOp(code === 124 ? _logicalOR : _logicalAND, 2);\n\tif (next === 61) return finishOp(_assign, 2);\n\treturn finishOp(code === 124 ? _bitwiseOR : _bitwiseAND, 1);\n }\n\n function readToken_caret() {\n\tvar next = input.charCodeAt(tokPos + 1);\n\tif (next === 61) return finishOp(_assign, 2);\n\treturn finishOp(_bitwiseXOR, 1);\n }\n\n function readToken_plus_min(code) {\n\tvar next = input.charCodeAt(tokPos + 1);\n\tif (next === code) {\n\t if (next == 45 && input.charCodeAt(tokPos + 2) == 62 &&\n\t\t newline.test(input.slice(lastEnd, tokPos))) {\n\t\ttokPos += 3;\n\t\tskipLineComment();\n\t\tskipSpace();\n\t\treturn readToken();\n\t }\n\t return finishOp(_incDec, 2);\n\t}\n\tif (next === 61) return finishOp(_assign, 2);\n\treturn finishOp(_plusMin, 1);\n }\n\n function readToken_lt_gt(code) {\n\tvar next = input.charCodeAt(tokPos + 1);\n\tvar size = 1;\n\tif (next === code) {\n\t size = code === 62 && input.charCodeAt(tokPos + 2) === 62 ? 3 : 2;\n\t if (input.charCodeAt(tokPos + size) === 61) return finishOp(_assign, size + 1);\n\t return finishOp(_bitShift, size);\n\t}\n\tif (next == 33 && code == 60 && input.charCodeAt(tokPos + 2) == 45 &&\n\t\tinput.charCodeAt(tokPos + 3) == 45) {\n\t tokPos += 4;\n\t skipLineComment();\n\t skipSpace();\n\t return readToken();\n\t}\n\tif (next === 61)\n\t size = input.charCodeAt(tokPos + 2) === 61 ? 3 : 2;\n\treturn finishOp(_relational, size);\n }\n\n function readToken_eq_excl(code) {\n\tvar next = input.charCodeAt(tokPos + 1);\n\tif (next === 61) return finishOp(_equality, input.charCodeAt(tokPos + 2) === 61 ? 3 : 2);\n\treturn finishOp(code === 61 ? _eq : _prefix, 1);\n }\n\n function getTokenFromCode(code) {\n\tswitch(code) {\n\tcase 46:\n\t return readToken_dot();\n\n\tcase 40: ++tokPos; return finishToken(_parenL);\n\tcase 41: ++tokPos; return finishToken(_parenR);\n\tcase 59: ++tokPos; return finishToken(_semi);\n\tcase 44: ++tokPos; return finishToken(_comma);\n\tcase 91: ++tokPos; return finishToken(_bracketL);\n\tcase 93: ++tokPos; return finishToken(_bracketR);\n\tcase 123: ++tokPos; return finishToken(_braceL);\n\tcase 125: ++tokPos; return finishToken(_braceR);\n\tcase 58: ++tokPos; return finishToken(_colon);\n\tcase 63: ++tokPos; return finishToken(_question);\n\n\tcase 48:\n\t var next = input.charCodeAt(tokPos + 1);\n\t if (next === 120 || next === 88) return readHexNumber();\n\tcase 49: case 50: case 51: case 52: case 53: case 54: case 55: case 56: case 57:\n\t return readNumber(false);\n\n\tcase 34: case 39:\n\t return readString(code);\n\n\tcase 47:\n\t return readToken_slash(code);\n\n\tcase 37: case 42:\n\t return readToken_mult_modulo();\n\n\tcase 124: case 38:\n\t return readToken_pipe_amp(code);\n\n\tcase 94:\n\t return readToken_caret();\n\n\tcase 43: case 45:\n\t return readToken_plus_min(code);\n\n\tcase 60: case 62:\n\t return readToken_lt_gt(code);\n\n\tcase 61: case 33:\n\t return readToken_eq_excl(code);\n\n\tcase 126:\n\t return finishOp(_prefix, 1);\n\t}\n\n\treturn false;\n }\n\n function readToken(forceRegexp) {\n\tif (!forceRegexp) tokStart = tokPos;\n\telse tokPos = tokStart + 1;\n\tif (options.locations) tokStartLoc = new line_loc_t;\n\tif (forceRegexp) return readRegexp();\n\tif (tokPos >= inputLen) return finishToken(_eof);\n\n\tvar code = input.charCodeAt(tokPos);\n\tif (isIdentifierStart(code) || code === 92 ) return readWord();\n\n\tvar tok = getTokenFromCode(code);\n\n\tif (tok === false) {\n\t var ch = String.fromCharCode(code);\n\t if (ch === \"\\\\\" || nonASCIIidentifierStart.test(ch)) return readWord();\n\t raise(tokPos, \"Unexpected character '\" + ch + \"'\");\n\t}\n\treturn tok;\n }\n\n function finishOp(type, size) {\n\tvar str = input.slice(tokPos, tokPos + size);\n\ttokPos += size;\n\tfinishToken(type, str);\n }\n\n function readRegexp() {\n\tvar content = \"\", escaped, inClass, start = tokPos;\n\tfor (;;) {\n\t if (tokPos >= inputLen) raise(start, \"Unterminated regular expression\");\n\t var ch = input.charAt(tokPos);\n\t if (newline.test(ch)) raise(start, \"Unterminated regular expression\");\n\t if (!escaped) {\n\t\tif (ch === \"[\") inClass = true;\n\t\telse if (ch === \"]\" && inClass) inClass = false;\n\t\telse if (ch === \"/\" && !inClass) break;\n\t\tescaped = ch === \"\\\\\";\n\t } else escaped = false;\n\t ++tokPos;\n\t}\n\tvar content = input.slice(start, tokPos);\n\t++tokPos;\n\tvar mods = readWord1();\n\tif (mods && !/^[gmsiy]*$/.test(mods)) raise(start, \"Invalid regexp flag\");\n\ttry {\n\t var value = new RegExp(content, mods);\n\t} catch (e) {\n\t if (e instanceof SyntaxError) raise(start, e.message);\n\t raise(e);\n\t}\n\treturn finishToken(_regexp, value);\n }\n\n function readInt(radix, len) {\n\tvar start = tokPos, total = 0;\n\tfor (var i = 0, e = len == null ? Infinity : len; i < e; ++i) {\n\t var code = input.charCodeAt(tokPos), val;\n\t if (code >= 97) val = code - 97 + 10;\n\t else if (code >= 65) val = code - 65 + 10;\n\t else if (code >= 48 && code <= 57) val = code - 48;\n\t else val = Infinity;\n\t if (val >= radix) break;\n\t ++tokPos;\n\t total = total * radix + val;\n\t}\n\tif (tokPos === start || len != null && tokPos - start !== len) return null;\n\n\treturn total;\n }\n\n function readHexNumber() {\n\ttokPos += 2;\n\tvar val = readInt(16);\n\tif (val == null) raise(tokStart + 2, \"Expected hexadecimal number\");\n\tif (isIdentifierStart(input.charCodeAt(tokPos))) raise(tokPos, \"Identifier directly after number\");\n\treturn finishToken(_num, val);\n }\n\n function readNumber(startsWithDot) {\n\tvar start = tokPos, isFloat = false, octal = input.charCodeAt(tokPos) === 48;\n\tif (!startsWithDot && readInt(10) === null) raise(start, \"Invalid number\");\n\tif (input.charCodeAt(tokPos) === 46) {\n\t ++tokPos;\n\t readInt(10);\n\t isFloat = true;\n\t}\n\tvar next = input.charCodeAt(tokPos);\n\tif (next === 69 || next === 101) {\n\t next = input.charCodeAt(++tokPos);\n\t if (next === 43 || next === 45) ++tokPos;\n\t if (readInt(10) === null) raise(start, \"Invalid number\");\n\t isFloat = true;\n\t}\n\tif (isIdentifierStart(input.charCodeAt(tokPos))) raise(tokPos, \"Identifier directly after number\");\n\n\tvar str = input.slice(start, tokPos), val;\n\tif (isFloat) val = parseFloat(str);\n\telse if (!octal || str.length === 1) val = parseInt(str, 10);\n\telse if (/[89]/.test(str) || strict) raise(start, \"Invalid number\");\n\telse val = parseInt(str, 8);\n\treturn finishToken(_num, val);\n }\n\n function readString(quote) {\n\ttokPos++;\n\tvar out = \"\";\n\tfor (;;) {\n\t if (tokPos >= inputLen) raise(tokStart, \"Unterminated string constant\");\n\t var ch = input.charCodeAt(tokPos);\n\t if (ch === quote) {\n\t\t++tokPos;\n\t\treturn finishToken(_string, out);\n\t }\n\t if (ch === 92) {\n\t\tch = input.charCodeAt(++tokPos);\n\t\tvar octal = /^[0-7]+/.exec(input.slice(tokPos, tokPos + 3));\n\t\tif (octal) octal = octal[0];\n\t\twhile (octal && parseInt(octal, 8) > 255) octal = octal.slice(0, -1);\n\t\tif (octal === \"0\") octal = null;\n\t\t++tokPos;\n\t\tif (octal) {\n\t\t if (strict) raise(tokPos - 2, \"Octal literal in strict mode\");\n\t\t out += String.fromCharCode(parseInt(octal, 8));\n\t\t tokPos += octal.length - 1;\n\t\t} else {\n\t\t switch (ch) {\n\t\t case 110: out += \"\\n\"; break;\n\t\t case 114: out += \"\\r\"; break;\n\t\t case 120: out += String.fromCharCode(readHexChar(2)); break;\n\t\t case 117: out += String.fromCharCode(readHexChar(4)); break;\n\t\t case 85: out += String.fromCharCode(readHexChar(8)); break;\n\t\t case 116: out += \"\\t\"; break;\n\t\t case 98: out += \"\\b\"; break;\n\t\t case 118: out += \"\\u000b\"; break;\n\t\t case 102: out += \"\\f\"; break;\n\t\t case 48: out += \"\\0\"; break;\n\t\t case 13: if (input.charCodeAt(tokPos) === 10) ++tokPos;\n\t\t case 10:\n\t\t\tif (options.locations) { tokLineStart = tokPos; ++tokCurLine; }\n\t\t\tbreak;\n\t\t default: out += String.fromCharCode(ch); break;\n\t\t }\n\t\t}\n\t } else {\n\t\tif (ch === 13 || ch === 10 || ch === 8232 || ch === 8233) raise(tokStart, \"Unterminated string constant\");\n\t\tout += String.fromCharCode(ch);\n\t\t++tokPos;\n\t }\n\t}\n }\n\n function readHexChar(len) {\n\tvar n = readInt(16, len);\n\tif (n === null) raise(tokStart, \"Bad character escape sequence\");\n\treturn n;\n }\n\n var containsEsc;\n\n function readWord1() {\n\tcontainsEsc = false;\n\tvar word, first = true, start = tokPos;\n\tfor (;;) {\n\t var ch = input.charCodeAt(tokPos);\n\t if (isIdentifierChar(ch)) {\n\t\tif (containsEsc) word += input.charAt(tokPos);\n\t\t++tokPos;\n\t } else if (ch === 92) {\n\t\tif (!containsEsc) word = input.slice(start, tokPos);\n\t\tcontainsEsc = true;\n\t\tif (input.charCodeAt(++tokPos) != 117)\n\t\t raise(tokPos, \"Expecting Unicode escape sequence \\\\uXXXX\");\n\t\t++tokPos;\n\t\tvar esc = readHexChar(4);\n\t\tvar escStr = String.fromCharCode(esc);\n\t\tif (!escStr) raise(tokPos - 1, \"Invalid Unicode escape\");\n\t\tif (!(first ? isIdentifierStart(esc) : isIdentifierChar(esc)))\n\t\t raise(tokPos - 4, \"Invalid Unicode escape\");\n\t\tword += escStr;\n\t } else {\n\t\tbreak;\n\t }\n\t first = false;\n\t}\n\treturn containsEsc ? word : input.slice(start, tokPos);\n }\n\n function readWord() {\n\tvar word = readWord1();\n\tvar type = _name;\n\tif (!containsEsc && isKeyword(word))\n\t type = keywordTypes[word];\n\treturn finishToken(type, word);\n }\n\n function next() {\n\tlastStart = tokStart;\n\tlastEnd = tokEnd;\n\tlastEndLoc = tokEndLoc;\n\treadToken();\n }\n\n function setStrict(strct) {\n\tstrict = strct;\n\ttokPos = tokStart;\n\tif (options.locations) {\n\t while (tokPos < tokLineStart) {\n\t\ttokLineStart = input.lastIndexOf(\"\\n\", tokLineStart - 2) + 1;\n\t\t--tokCurLine;\n\t }\n\t}\n\tskipSpace();\n\treadToken();\n }\n\n function node_t() {\n\tthis.type = null;\n\tthis.start = tokStart;\n\tthis.end = null;\n }\n\n function node_loc_t() {\n\tthis.start = tokStartLoc;\n\tthis.end = null;\n\tif (sourceFile !== null) this.source = sourceFile;\n }\n\n function startNode() {\n\tvar node = new node_t();\n\tif (options.locations)\n\t node.loc = new node_loc_t();\n\tif (options.directSourceFile)\n\t node.sourceFile = options.directSourceFile;\n\tif (options.ranges)\n\t node.range = [tokStart, 0];\n\treturn node;\n }\n\n function startNodeFrom(other) {\n\tvar node = new node_t();\n\tnode.start = other.start;\n\tif (options.locations) {\n\t node.loc = new node_loc_t();\n\t node.loc.start = other.loc.start;\n\t}\n\tif (options.ranges)\n\t node.range = [other.range[0], 0];\n\n\treturn node;\n }\n\n function finishNode(node, type) {\n\tnode.type = type;\n\tnode.end = lastEnd;\n\tif (options.locations)\n\t node.loc.end = lastEndLoc;\n\tif (options.ranges)\n\t node.range[1] = lastEnd;\n\treturn node;\n }\n\n function isUseStrict(stmt) {\n\treturn options.ecmaVersion >= 5 && stmt.type === \"ExpressionStatement\" &&\n\t stmt.expression.type === \"Literal\" && stmt.expression.value === \"use strict\";\n }\n\n function eat(type) {\n\tif (tokType === type) {\n\t next();\n\t return true;\n\t}\n }\n\n function canInsertSemicolon() {\n\treturn !options.strictSemicolons &&\n\t (tokType === _eof || tokType === _braceR || newline.test(input.slice(lastEnd, tokStart)));\n }\n\n function semicolon() {\n\tif (!eat(_semi) && !canInsertSemicolon()) unexpected();\n }\n\n function expect(type) {\n\tif (tokType === type) next();\n\telse unexpected();\n }\n\n function unexpected() {\n\traise(tokStart, \"Unexpected token\");\n }\n\n function checkLVal(expr) {\n\tif (expr.type !== \"Identifier\" && expr.type !== \"MemberExpression\")\n\t raise(expr.start, \"Assigning to rvalue\");\n\tif (strict && expr.type === \"Identifier\" && isStrictBadIdWord(expr.name))\n\t raise(expr.start, \"Assigning to \" + expr.name + \" in strict mode\");\n }\n\n function parseTopLevel(program) {\n\tlastStart = lastEnd = tokPos;\n\tif (options.locations) lastEndLoc = new line_loc_t;\n\tinFunction = strict = null;\n\tlabels = [];\n\treadToken();\n\n\tvar node = program || startNode(), first = true;\n\tif (!program) node.body = [];\n\twhile (tokType !== _eof) {\n\t var stmt = parseStatement();\n\t node.body.push(stmt);\n\t if (first && isUseStrict(stmt)) setStrict(true);\n\t first = false;\n\t}\n\treturn finishNode(node, \"Program\");\n }\n\n var loopLabel = {kind: \"loop\"}, switchLabel = {kind: \"switch\"};\n\n function parseStatement() {\n\tif (tokType === _slash || tokType === _assign && tokVal == \"/=\")\n\t readToken(true);\n\n\tvar starttype = tokType, node = startNode();\n\n\tswitch (starttype) {\n\tcase _break: case _continue:\n\t next();\n\t var isBreak = starttype === _break;\n\t if (eat(_semi) || canInsertSemicolon()) node.label = null;\n\t else if (tokType !== _name) unexpected();\n\t else {\n\t\tnode.label = parseIdent();\n\t\tsemicolon();\n\t }\n\n\t for (var i = 0; i < labels.length; ++i) {\n\t\tvar lab = labels[i];\n\t\tif (node.label == null || lab.name === node.label.name) {\n\t\t if (lab.kind != null && (isBreak || lab.kind === \"loop\")) break;\n\t\t if (node.label && isBreak) break;\n\t\t}\n\t }\n\t if (i === labels.length) raise(node.start, \"Unsyntactic \" + starttype.keyword);\n\t return finishNode(node, isBreak ? \"BreakStatement\" : \"ContinueStatement\");\n\n\tcase _debugger:\n\t next();\n\t semicolon();\n\t return finishNode(node, \"DebuggerStatement\");\n\n\tcase _do:\n\t next();\n\t labels.push(loopLabel);\n\t node.body = parseStatement();\n\t labels.pop();\n\t expect(_while);\n\t node.test = parseParenExpression();\n\t semicolon();\n\t return finishNode(node, \"DoWhileStatement\");\n\n\tcase _for:\n\t next();\n\t labels.push(loopLabel);\n\t expect(_parenL);\n\t if (tokType === _semi) return parseFor(node, null);\n\t if (tokType === _var) {\n\t\tvar init = startNode();\n\t\tnext();\n\t\tparseVar(init, true);\n\t\tfinishNode(init, \"VariableDeclaration\");\n\t\tif (init.declarations.length === 1 && eat(_in))\n\t\t return parseForIn(node, init);\n\t\treturn parseFor(node, init);\n\t }\n\t var init = parseExpression(false, true);\n\t if (eat(_in)) {checkLVal(init); return parseForIn(node, init);}\n\t return parseFor(node, init);\n\n\tcase _function:\n\t next();\n\t return parseFunction(node, true);\n\n\tcase _if:\n\t next();\n\t node.test = parseParenExpression();\n\t node.consequent = parseStatement();\n\t node.alternate = eat(_else) ? parseStatement() : null;\n\t return finishNode(node, \"IfStatement\");\n\n\tcase _return:\n\t if (!inFunction && !options.allowReturnOutsideFunction)\n\t\traise(tokStart, \"'return' outside of function\");\n\t next();\n\n\t if (eat(_semi) || canInsertSemicolon()) node.argument = null;\n\t else { node.argument = parseExpression(); semicolon(); }\n\t return finishNode(node, \"ReturnStatement\");\n\n\tcase _switch:\n\t next();\n\t node.discriminant = parseParenExpression();\n\t node.cases = [];\n\t expect(_braceL);\n\t labels.push(switchLabel);\n\n\t for (var cur, sawDefault; tokType != _braceR;) {\n\t\tif (tokType === _case || tokType === _default) {\n\t\t var isCase = tokType === _case;\n\t\t if (cur) finishNode(cur, \"SwitchCase\");\n\t\t node.cases.push(cur = startNode());\n\t\t cur.consequent = [];\n\t\t next();\n\t\t if (isCase) cur.test = parseExpression();\n\t\t else {\n\t\t\tif (sawDefault) raise(lastStart, \"Multiple default clauses\"); sawDefault = true;\n\t\t\tcur.test = null;\n\t\t }\n\t\t expect(_colon);\n\t\t} else {\n\t\t if (!cur) unexpected();\n\t\t cur.consequent.push(parseStatement());\n\t\t}\n\t }\n\t if (cur) finishNode(cur, \"SwitchCase\");\n\t next();\n\t labels.pop();\n\t return finishNode(node, \"SwitchStatement\");\n\n\tcase _throw:\n\t next();\n\t if (newline.test(input.slice(lastEnd, tokStart)))\n\t\traise(lastEnd, \"Illegal newline after throw\");\n\t node.argument = parseExpression();\n\t semicolon();\n\t return finishNode(node, \"ThrowStatement\");\n\n\tcase _try:\n\t next();\n\t node.block = parseBlock();\n\t node.handler = null;\n\t if (tokType === _catch) {\n\t\tvar clause = startNode();\n\t\tnext();\n\t\texpect(_parenL);\n\t\tclause.param = parseIdent();\n\t\tif (strict && isStrictBadIdWord(clause.param.name))\n\t\t raise(clause.param.start, \"Binding \" + clause.param.name + \" in strict mode\");\n\t\texpect(_parenR);\n\t\tclause.guard = null;\n\t\tclause.body = parseBlock();\n\t\tnode.handler = finishNode(clause, \"CatchClause\");\n\t }\n\t node.guardedHandlers = empty;\n\t node.finalizer = eat(_finally) ? parseBlock() : null;\n\t if (!node.handler && !node.finalizer)\n\t\traise(node.start, \"Missing catch or finally clause\");\n\t return finishNode(node, \"TryStatement\");\n\n\tcase _var:\n\t next();\n\t parseVar(node);\n\t semicolon();\n\t return finishNode(node, \"VariableDeclaration\");\n\n\tcase _while:\n\t next();\n\t node.test = parseParenExpression();\n\t labels.push(loopLabel);\n\t node.body = parseStatement();\n\t labels.pop();\n\t return finishNode(node, \"WhileStatement\");\n\n\tcase _with:\n\t if (strict) raise(tokStart, \"'with' in strict mode\");\n\t next();\n\t node.object = parseParenExpression();\n\t node.body = parseStatement();\n\t return finishNode(node, \"WithStatement\");\n\n\tcase _braceL:\n\t return parseBlock();\n\n\tcase _semi:\n\t next();\n\t return finishNode(node, \"EmptyStatement\");\n\n\tdefault:\n\t var maybeName = tokVal, expr = parseExpression();\n\t if (starttype === _name && expr.type === \"Identifier\" && eat(_colon)) {\n\t\tfor (var i = 0; i < labels.length; ++i)\n\t\t if (labels[i].name === maybeName) raise(expr.start, \"Label '\" + maybeName + \"' is already declared\");\n\t\tvar kind = tokType.isLoop ? \"loop\" : tokType === _switch ? \"switch\" : null;\n\t\tlabels.push({name: maybeName, kind: kind});\n\t\tnode.body = parseStatement();\n\t\tlabels.pop();\n\t\tnode.label = expr;\n\t\treturn finishNode(node, \"LabeledStatement\");\n\t } else {\n\t\tnode.expression = expr;\n\t\tsemicolon();\n\t\treturn finishNode(node, \"ExpressionStatement\");\n\t }\n\t}\n }\n\n function parseParenExpression() {\n\texpect(_parenL);\n\tvar val = parseExpression();\n\texpect(_parenR);\n\treturn val;\n }\n\n function parseBlock(allowStrict) {\n\tvar node = startNode(), first = true, strict = false, oldStrict;\n\tnode.body = [];\n\texpect(_braceL);\n\twhile (!eat(_braceR)) {\n\t var stmt = parseStatement();\n\t node.body.push(stmt);\n\t if (first && allowStrict && isUseStrict(stmt)) {\n\t\toldStrict = strict;\n\t\tsetStrict(strict = true);\n\t }\n\t first = false;\n\t}\n\tif (strict && !oldStrict) setStrict(false);\n\treturn finishNode(node, \"BlockStatement\");\n }\n\n function parseFor(node, init) {\n\tnode.init = init;\n\texpect(_semi);\n\tnode.test = tokType === _semi ? null : parseExpression();\n\texpect(_semi);\n\tnode.update = tokType === _parenR ? null : parseExpression();\n\texpect(_parenR);\n\tnode.body = parseStatement();\n\tlabels.pop();\n\treturn finishNode(node, \"ForStatement\");\n }\n\n function parseForIn(node, init) {\n\tnode.left = init;\n\tnode.right = parseExpression();\n\texpect(_parenR);\n\tnode.body = parseStatement();\n\tlabels.pop();\n\treturn finishNode(node, \"ForInStatement\");\n }\n\n function parseVar(node, noIn) {\n\tnode.declarations = [];\n\tnode.kind = \"var\";\n\tfor (;;) {\n\t var decl = startNode();\n\t decl.id = parseIdent();\n\t if (strict && isStrictBadIdWord(decl.id.name))\n\t\traise(decl.id.start, \"Binding \" + decl.id.name + \" in strict mode\");\n\t decl.init = eat(_eq) ? parseExpression(true, noIn) : null;\n\t node.declarations.push(finishNode(decl, \"VariableDeclarator\"));\n\t if (!eat(_comma)) break;\n\t}\n\treturn node;\n }\n\n function parseExpression(noComma, noIn) {\n\tvar expr = parseMaybeAssign(noIn);\n\tif (!noComma && tokType === _comma) {\n\t var node = startNodeFrom(expr);\n\t node.expressions = [expr];\n\t while (eat(_comma)) node.expressions.push(parseMaybeAssign(noIn));\n\t return finishNode(node, \"SequenceExpression\");\n\t}\n\treturn expr;\n }\n\n function parseMaybeAssign(noIn) {\n\tvar left = parseMaybeConditional(noIn);\n\tif (tokType.isAssign) {\n\t var node = startNodeFrom(left);\n\t node.operator = tokVal;\n\t node.left = left;\n\t next();\n\t node.right = parseMaybeAssign(noIn);\n\t checkLVal(left);\n\t return finishNode(node, \"AssignmentExpression\");\n\t}\n\treturn left;\n }\n\n function parseMaybeConditional(noIn) {\n\tvar expr = parseExprOps(noIn);\n\tif (eat(_question)) {\n\t var node = startNodeFrom(expr);\n\t node.test = expr;\n\t node.consequent = parseExpression(true);\n\t expect(_colon);\n\t node.alternate = parseExpression(true, noIn);\n\t return finishNode(node, \"ConditionalExpression\");\n\t}\n\treturn expr;\n }\n\n function parseExprOps(noIn) {\n\treturn parseExprOp(parseMaybeUnary(), -1, noIn);\n }\n\n function parseExprOp(left, minPrec, noIn) {\n\tvar prec = tokType.binop;\n\tif (prec != null && (!noIn || tokType !== _in)) {\n\t if (prec > minPrec) {\n\t\tvar node = startNodeFrom(left);\n\t\tnode.left = left;\n\t\tnode.operator = tokVal;\n\t\tvar op = tokType;\n\t\tnext();\n\t\tnode.right = parseExprOp(parseMaybeUnary(), prec, noIn);\n\t\tvar exprNode = finishNode(node, (op === _logicalOR || op === _logicalAND) ? \"LogicalExpression\" : \"BinaryExpression\");\n\t\treturn parseExprOp(exprNode, minPrec, noIn);\n\t }\n\t}\n\treturn left;\n }\n\n function parseMaybeUnary() {\n\tif (tokType.prefix) {\n\t var node = startNode(), update = tokType.isUpdate;\n\t node.operator = tokVal;\n\t node.prefix = true;\n\t tokRegexpAllowed = true;\n\t next();\n\t node.argument = parseMaybeUnary();\n\t if (update) checkLVal(node.argument);\n\t else if (strict && node.operator === \"delete\" &&\n\t\t\t node.argument.type === \"Identifier\")\n\t\traise(node.start, \"Deleting local variable in strict mode\");\n\t return finishNode(node, update ? \"UpdateExpression\" : \"UnaryExpression\");\n\t}\n\tvar expr = parseExprSubscripts();\n\twhile (tokType.postfix && !canInsertSemicolon()) {\n\t var node = startNodeFrom(expr);\n\t node.operator = tokVal;\n\t node.prefix = false;\n\t node.argument = expr;\n\t checkLVal(expr);\n\t next();\n\t expr = finishNode(node, \"UpdateExpression\");\n\t}\n\treturn expr;\n }\n\n function parseExprSubscripts() {\n\treturn parseSubscripts(parseExprAtom());\n }\n\n function parseSubscripts(base, noCalls) {\n\tif (eat(_dot)) {\n\t var node = startNodeFrom(base);\n\t node.object = base;\n\t node.property = parseIdent(true);\n\t node.computed = false;\n\t return parseSubscripts(finishNode(node, \"MemberExpression\"), noCalls);\n\t} else if (eat(_bracketL)) {\n\t var node = startNodeFrom(base);\n\t node.object = base;\n\t node.property = parseExpression();\n\t node.computed = true;\n\t expect(_bracketR);\n\t return parseSubscripts(finishNode(node, \"MemberExpression\"), noCalls);\n\t} else if (!noCalls && eat(_parenL)) {\n\t var node = startNodeFrom(base);\n\t node.callee = base;\n\t node.arguments = parseExprList(_parenR, false);\n\t return parseSubscripts(finishNode(node, \"CallExpression\"), noCalls);\n\t} else return base;\n }\n\n function parseExprAtom() {\n\tswitch (tokType) {\n\tcase _this:\n\t var node = startNode();\n\t next();\n\t return finishNode(node, \"ThisExpression\");\n\tcase _name:\n\t return parseIdent();\n\tcase _num: case _string: case _regexp:\n\t var node = startNode();\n\t node.value = tokVal;\n\t node.raw = input.slice(tokStart, tokEnd);\n\t next();\n\t return finishNode(node, \"Literal\");\n\n\tcase _null: case _true: case _false:\n\t var node = startNode();\n\t node.value = tokType.atomValue;\n\t node.raw = tokType.keyword;\n\t next();\n\t return finishNode(node, \"Literal\");\n\n\tcase _parenL:\n\t var tokStartLoc1 = tokStartLoc, tokStart1 = tokStart;\n\t next();\n\t var val = parseExpression();\n\t val.start = tokStart1;\n\t val.end = tokEnd;\n\t if (options.locations) {\n\t\tval.loc.start = tokStartLoc1;\n\t\tval.loc.end = tokEndLoc;\n\t }\n\t if (options.ranges)\n\t\tval.range = [tokStart1, tokEnd];\n\t expect(_parenR);\n\t return val;\n\n\tcase _bracketL:\n\t var node = startNode();\n\t next();\n\t node.elements = parseExprList(_bracketR, true, true);\n\t return finishNode(node, \"ArrayExpression\");\n\n\tcase _braceL:\n\t return parseObj();\n\n\tcase _function:\n\t var node = startNode();\n\t next();\n\t return parseFunction(node, false);\n\n\tcase _new:\n\t return parseNew();\n\n\tdefault:\n\t unexpected();\n\t}\n }\n\n function parseNew() {\n\tvar node = startNode();\n\tnext();\n\tnode.callee = parseSubscripts(parseExprAtom(), true);\n\tif (eat(_parenL)) node.arguments = parseExprList(_parenR, false);\n\telse node.arguments = empty;\n\treturn finishNode(node, \"NewExpression\");\n }\n\n function parseObj() {\n\tvar node = startNode(), first = true, sawGetSet = false;\n\tnode.properties = [];\n\tnext();\n\twhile (!eat(_braceR)) {\n\t if (!first) {\n\t\texpect(_comma);\n\t\tif (options.allowTrailingCommas && eat(_braceR)) break;\n\t } else first = false;\n\n\t var prop = {key: parsePropertyName()}, isGetSet = false, kind;\n\t if (eat(_colon)) {\n\t\tprop.value = parseExpression(true);\n\t\tkind = prop.kind = \"init\";\n\t } else if (options.ecmaVersion >= 5 && prop.key.type === \"Identifier\" &&\n\t\t\t\t (prop.key.name === \"get\" || prop.key.name === \"set\")) {\n\t\tisGetSet = sawGetSet = true;\n\t\tkind = prop.kind = prop.key.name;\n\t\tprop.key = parsePropertyName();\n\t\tif (tokType !== _parenL) unexpected();\n\t\tprop.value = parseFunction(startNode(), false);\n\t } else unexpected();\n\n\t if (prop.key.type === \"Identifier\" && (strict || sawGetSet)) {\n\t\tfor (var i = 0; i < node.properties.length; ++i) {\n\t\t var other = node.properties[i];\n\t\t if (other.key.name === prop.key.name) {\n\t\t\tvar conflict = kind == other.kind || isGetSet && other.kind === \"init\" ||\n\t\t\t kind === \"init\" && (other.kind === \"get\" || other.kind === \"set\");\n\t\t\tif (conflict && !strict && kind === \"init\" && other.kind === \"init\") conflict = false;\n\t\t\tif (conflict) raise(prop.key.start, \"Redefinition of property\");\n\t\t }\n\t\t}\n\t }\n\t node.properties.push(prop);\n\t}\n\treturn finishNode(node, \"ObjectExpression\");\n }\n\n function parsePropertyName() {\n\tif (tokType === _num || tokType === _string) return parseExprAtom();\n\treturn parseIdent(true);\n }\n\n function parseFunction(node, isStatement) {\n\tif (tokType === _name) node.id = parseIdent();\n\telse if (isStatement) unexpected();\n\telse node.id = null;\n\tnode.params = [];\n\tvar first = true;\n\texpect(_parenL);\n\twhile (!eat(_parenR)) {\n\t if (!first) expect(_comma); else first = false;\n\t node.params.push(parseIdent());\n\t}\n\n\tvar oldInFunc = inFunction, oldLabels = labels;\n\tinFunction = true; labels = [];\n\tnode.body = parseBlock(true);\n\tinFunction = oldInFunc; labels = oldLabels;\n\n\tif (strict || node.body.body.length && isUseStrict(node.body.body[0])) {\n\t for (var i = node.id ? -1 : 0; i < node.params.length; ++i) {\n\t\tvar id = i < 0 ? node.id : node.params[i];\n\t\tif (isStrictReservedWord(id.name) || isStrictBadIdWord(id.name))\n\t\t raise(id.start, \"Defining '\" + id.name + \"' in strict mode\");\n\t\tif (i >= 0) for (var j = 0; j < i; ++j) if (id.name === node.params[j].name)\n\t\t raise(id.start, \"Argument name clash in strict mode\");\n\t }\n\t}\n\n\treturn finishNode(node, isStatement ? \"FunctionDeclaration\" : \"FunctionExpression\");\n }\n\n function parseExprList(close, allowTrailingComma, allowEmpty) {\n\tvar elts = [], first = true;\n\twhile (!eat(close)) {\n\t if (!first) {\n\t\texpect(_comma);\n\t\tif (allowTrailingComma && options.allowTrailingCommas && eat(close)) break;\n\t } else first = false;\n\n\t if (allowEmpty && tokType === _comma) elts.push(null);\n\t else elts.push(parseExpression(true));\n\t}\n\treturn elts;\n }\n\n function parseIdent(liberal) {\n\tvar node = startNode();\n\tif (liberal && options.forbidReserved == \"everywhere\") liberal = false;\n\tif (tokType === _name) {\n\t if (!liberal &&\n\t\t (options.forbidReserved &&\n\t\t (options.ecmaVersion === 3 ? isReservedWord3 : isReservedWord5)(tokVal) ||\n\t\t strict && isStrictReservedWord(tokVal)) &&\n\t\t input.slice(tokStart, tokEnd).indexOf(\"\\\\\") == -1)\n\t\traise(tokStart, \"The keyword '\" + tokVal + \"' is reserved\");\n\t node.name = tokVal;\n\t} else if (liberal && tokType.keyword) {\n\t node.name = tokType.keyword;\n\t} else {\n\t unexpected();\n\t}\n\ttokRegexpAllowed = false;\n\tnext();\n\treturn finishNode(node, \"Identifier\");\n }\n\n});\n\n\t\tif (!acorn.version)\n\t\t\tacorn = null;\n\t}\n\n\tfunction parse(code, options) {\n\t\treturn (global.acorn || acorn).parse(code, options);\n\t}\n\n\tvar binaryOperators = {\n\t\t'+': '__add',\n\t\t'-': '__subtract',\n\t\t'*': '__multiply',\n\t\t'/': '__divide',\n\t\t'%': '__modulo',\n\t\t'==': '__equals',\n\t\t'!=': '__equals'\n\t};\n\n\tvar unaryOperators = {\n\t\t'-': '__negate',\n\t\t'+': '__self'\n\t};\n\n\tvar fields = Base.each(\n\t\t['add', 'subtract', 'multiply', 'divide', 'modulo', 'equals', 'negate'],\n\t\tfunction(name) {\n\t\t\tthis['__' + name] = '#' + name;\n\t\t},\n\t\t{\n\t\t\t__self: function() {\n\t\t\t\treturn this;\n\t\t\t}\n\t\t}\n\t);\n\tPoint.inject(fields);\n\tSize.inject(fields);\n\tColor.inject(fields);\n\n\tfunction __$__(left, operator, right) {\n\t\tvar handler = binaryOperators[operator];\n\t\tif (left && left[handler]) {\n\t\t\tvar res = left[handler](right);\n\t\t\treturn operator === '!=' ? !res : res;\n\t\t}\n\t\tswitch (operator) {\n\t\tcase '+': return left + right;\n\t\tcase '-': return left - right;\n\t\tcase '*': return left * right;\n\t\tcase '/': return left / right;\n\t\tcase '%': return left % right;\n\t\tcase '==': return left == right;\n\t\tcase '!=': return left != right;\n\t\t}\n\t}\n\n\tfunction $__(operator, value) {\n\t\tvar handler = unaryOperators[operator];\n\t\tif (value && value[handler])\n\t\t\treturn value[handler]();\n\t\tswitch (operator) {\n\t\tcase '+': return +value;\n\t\tcase '-': return -value;\n\t\t}\n\t}\n\n\tfunction compile(code, options) {\n\t\tif (!code)\n\t\t\treturn '';\n\t\toptions = options || {};\n\n\t\tvar insertions = [];\n\n\t\tfunction getOffset(offset) {\n\t\t\tfor (var i = 0, l = insertions.length; i < l; i++) {\n\t\t\t\tvar insertion = insertions[i];\n\t\t\t\tif (insertion[0] >= offset)\n\t\t\t\t\tbreak;\n\t\t\t\toffset += insertion[1];\n\t\t\t}\n\t\t\treturn offset;\n\t\t}\n\n\t\tfunction getCode(node) {\n\t\t\treturn code.substring(getOffset(node.range[0]),\n\t\t\t\t\tgetOffset(node.range[1]));\n\t\t}\n\n\t\tfunction getBetween(left, right) {\n\t\t\treturn code.substring(getOffset(left.range[1]),\n\t\t\t\t\tgetOffset(right.range[0]));\n\t\t}\n\n\t\tfunction replaceCode(node, str) {\n\t\t\tvar start = getOffset(node.range[0]),\n\t\t\t\tend = getOffset(node.range[1]),\n\t\t\t\tinsert = 0;\n\t\t\tfor (var i = insertions.length - 1; i >= 0; i--) {\n\t\t\t\tif (start > insertions[i][0]) {\n\t\t\t\t\tinsert = i + 1;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t\tinsertions.splice(insert, 0, [start, str.length - end + start]);\n\t\t\tcode = code.substring(0, start) + str + code.substring(end);\n\t\t}\n\n\t\tfunction handleOverloading(node, parent) {\n\t\t\tswitch (node.type) {\n\t\t\tcase 'UnaryExpression':\n\t\t\t\tif (node.operator in unaryOperators\n\t\t\t\t\t\t&& node.argument.type !== 'Literal') {\n\t\t\t\t\tvar arg = getCode(node.argument);\n\t\t\t\t\treplaceCode(node, '$__(\"' + node.operator + '\", '\n\t\t\t\t\t\t\t+ arg + ')');\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase 'BinaryExpression':\n\t\t\t\tif (node.operator in binaryOperators\n\t\t\t\t\t\t&& node.left.type !== 'Literal') {\n\t\t\t\t\tvar left = getCode(node.left),\n\t\t\t\t\t\tright = getCode(node.right),\n\t\t\t\t\t\tbetween = getBetween(node.left, node.right),\n\t\t\t\t\t\toperator = node.operator;\n\t\t\t\t\treplaceCode(node, '__$__(' + left + ','\n\t\t\t\t\t\t\t+ between.replace(new RegExp('\\\\' + operator),\n\t\t\t\t\t\t\t\t'\"' + operator + '\"')\n\t\t\t\t\t\t\t+ ', ' + right + ')');\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase 'UpdateExpression':\n\t\t\tcase 'AssignmentExpression':\n\t\t\t\tvar parentType = parent && parent.type;\n\t\t\t\tif (!(\n\t\t\t\t\t\tparentType === 'ForStatement'\n\t\t\t\t\t\t|| parentType === 'BinaryExpression'\n\t\t\t\t\t\t\t&& /^[=!<>]/.test(parent.operator)\n\t\t\t\t\t\t|| parentType === 'MemberExpression' && parent.computed\n\t\t\t\t)) {\n\t\t\t\t\tif (node.type === 'UpdateExpression') {\n\t\t\t\t\t\tvar arg = getCode(node.argument),\n\t\t\t\t\t\t\texp = '__$__(' + arg + ', \"' + node.operator[0]\n\t\t\t\t\t\t\t\t\t+ '\", 1)',\n\t\t\t\t\t\t\tstr = arg + ' = ' + exp;\n\t\t\t\t\t\tif (node.prefix) {\n\t\t\t\t\t\t\tstr = '(' + str + ')';\n\t\t\t\t\t\t} else if (\n\t\t\t\t\t\t\tparentType === 'AssignmentExpression' ||\n\t\t\t\t\t\t\tparentType === 'VariableDeclarator' ||\n\t\t\t\t\t\t\tparentType === 'BinaryExpression'\n\t\t\t\t\t\t) {\n\t\t\t\t\t\t\tif (getCode(parent.left || parent.id) === arg)\n\t\t\t\t\t\t\t\tstr = exp;\n\t\t\t\t\t\t\tstr = arg + '; ' + str;\n\t\t\t\t\t\t}\n\t\t\t\t\t\treplaceCode(node, str);\n\t\t\t\t\t} else {\n\t\t\t\t\t\tif (/^.=$/.test(node.operator)\n\t\t\t\t\t\t\t\t&& node.left.type !== 'Literal') {\n\t\t\t\t\t\t\tvar left = getCode(node.left),\n\t\t\t\t\t\t\t\tright = getCode(node.right),\n\t\t\t\t\t\t\t\texp = left + ' = __$__(' + left + ', \"'\n\t\t\t\t\t\t\t\t\t+ node.operator[0] + '\", ' + right + ')';\n\t\t\t\t\t\t\treplaceCode(node, /^\\(.*\\)$/.test(getCode(node))\n\t\t\t\t\t\t\t\t\t? '(' + exp + ')' : exp);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\tfunction handleExports(node) {\n\t\t\tswitch (node.type) {\n\t\t\tcase 'ExportDefaultDeclaration':\n\t\t\t\treplaceCode({\n\t\t\t\t\trange: [node.start, node.declaration.start]\n\t\t\t\t}, 'module.exports = ');\n\t\t\t\tbreak;\n\t\t\tcase 'ExportNamedDeclaration':\n\t\t\t\tvar declaration = node.declaration;\n\t\t\t\tvar specifiers = node.specifiers;\n\t\t\t\tif (declaration) {\n\t\t\t\t\tvar declarations = declaration.declarations;\n\t\t\t\t\tif (declarations) {\n\t\t\t\t\t\tdeclarations.forEach(function(dec) {\n\t\t\t\t\t\t\treplaceCode(dec, 'module.exports.' + getCode(dec));\n\t\t\t\t\t\t});\n\t\t\t\t\t\treplaceCode({\n\t\t\t\t\t\t\trange: [\n\t\t\t\t\t\t\t\tnode.start,\n\t\t\t\t\t\t\t\tdeclaration.start + declaration.kind.length\n\t\t\t\t\t\t\t]\n\t\t\t\t\t\t}, '');\n\t\t\t\t\t}\n\t\t\t\t} else if (specifiers) {\n\t\t\t\t\tvar exports = specifiers.map(function(specifier) {\n\t\t\t\t\t\tvar name = getCode(specifier);\n\t\t\t\t\t\treturn 'module.exports.' + name + ' = ' + name + '; ';\n\t\t\t\t\t}).join('');\n\t\t\t\t\tif (exports) {\n\t\t\t\t\t\treplaceCode(node, exports);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\tfunction walkAST(node, parent, paperFeatures) {\n\t\t\tif (node) {\n\t\t\t\tfor (var key in node) {\n\t\t\t\t\tif (key !== 'range' && key !== 'loc') {\n\t\t\t\t\t\tvar value = node[key];\n\t\t\t\t\t\tif (Array.isArray(value)) {\n\t\t\t\t\t\t\tfor (var i = 0, l = value.length; i < l; i++) {\n\t\t\t\t\t\t\t\twalkAST(value[i], node, paperFeatures);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t} else if (value && typeof value === 'object') {\n\t\t\t\t\t\t\twalkAST(value, node, paperFeatures);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tif (paperFeatures.operatorOverloading !== false) {\n\t\t\t\t\thandleOverloading(node, parent);\n\t\t\t\t}\n\t\t\t\tif (paperFeatures.moduleExports !== false) {\n\t\t\t\t\thandleExports(node);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tfunction encodeVLQ(value) {\n\t\t\tvar res = '',\n\t\t\t\tbase64 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n\t\t\tvalue = (Math.abs(value) << 1) + (value < 0 ? 1 : 0);\n\t\t\twhile (value || !res) {\n\t\t\t\tvar next = value & (32 - 1);\n\t\t\t\tvalue >>= 5;\n\t\t\t\tif (value)\n\t\t\t\t\tnext |= 32;\n\t\t\t\tres += base64[next];\n\t\t\t}\n\t\t\treturn res;\n\t\t}\n\n\t\tvar url = options.url || '',\n\t\t\tsourceMaps = options.sourceMaps,\n\t\t\tpaperFeatures = options.paperFeatures || {},\n\t\t\tsource = options.source || code,\n\t\t\toffset = options.offset || 0,\n\t\t\tagent = paper.agent,\n\t\t\tversion = agent.versionNumber,\n\t\t\toffsetCode = false,\n\t\t\tlineBreaks = /\\r\\n|\\n|\\r/mg,\n\t\t\tmap;\n\t\tif (sourceMaps && (agent.chrome && version >= 30\n\t\t\t\t|| agent.webkit && version >= 537.76\n\t\t\t\t|| agent.firefox && version >= 23\n\t\t\t\t|| agent.node)) {\n\t\t\tif (agent.node) {\n\t\t\t\toffset -= 2;\n\t\t\t} else if (window && url && !window.location.href.indexOf(url)) {\n\t\t\t\tvar html = document.getElementsByTagName('html')[0].innerHTML;\n\t\t\t\toffset = html.substr(0, html.indexOf(code) + 1).match(\n\t\t\t\t\t\tlineBreaks).length + 1;\n\t\t\t}\n\t\t\toffsetCode = offset > 0 && !(\n\t\t\t\t\tagent.chrome && version >= 36 ||\n\t\t\t\t\tagent.safari && version >= 600 ||\n\t\t\t\t\tagent.firefox && version >= 40 ||\n\t\t\t\t\tagent.node);\n\t\t\tvar mappings = ['AA' + encodeVLQ(offsetCode ? 0 : offset) + 'A'];\n\t\t\tmappings.length = (code.match(lineBreaks) || []).length + 1\n\t\t\t\t\t+ (offsetCode ? offset : 0);\n\t\t\tmap = {\n\t\t\t\tversion: 3,\n\t\t\t\tfile: url,\n\t\t\t\tnames:[],\n\t\t\t\tmappings: mappings.join(';AACA'),\n\t\t\t\tsourceRoot: '',\n\t\t\t\tsources: [url],\n\t\t\t\tsourcesContent: [source]\n\t\t\t};\n\t\t}\n\t\tif (\n\t\t\tpaperFeatures.operatorOverloading !== false ||\n\t\t\tpaperFeatures.moduleExports !== false\n\t\t) {\n\t\t\twalkAST(parse(code, {\n\t\t\t\tranges: true,\n\t\t\t\tpreserveParens: true,\n\t\t\t\tsourceType: 'module'\n\t\t\t}), null, paperFeatures);\n\t\t}\n\t\tif (map) {\n\t\t\tif (offsetCode) {\n\t\t\t\tcode = new Array(offset + 1).join('\\n') + code;\n\t\t\t}\n\t\t\tif (/^(inline|both)$/.test(sourceMaps)) {\n\t\t\t\tcode += \"\\n//# sourceMappingURL=data:application/json;base64,\"\n\t\t\t\t\t\t+ self.btoa(unescape(encodeURIComponent(\n\t\t\t\t\t\t\tJSON.stringify(map))));\n\t\t\t}\n\t\t\tcode += \"\\n//# sourceURL=\" + (url || 'paperscript');\n\t\t}\n\t\treturn {\n\t\t\turl: url,\n\t\t\tsource: source,\n\t\t\tcode: code,\n\t\t\tmap: map\n\t\t};\n\t}\n\n\tfunction execute(code, scope, options) {\n\t\tpaper = scope;\n\t\tvar view = scope.getView(),\n\t\t\ttool = /\\btool\\.\\w+|\\s+on(?:Key|Mouse)(?:Up|Down|Move|Drag)\\b/\n\t\t\t\t\t.test(code) && !/\\bnew\\s+Tool\\b/.test(code)\n\t\t\t\t\t\t? new Tool() : null,\n\t\t\ttoolHandlers = tool ? tool._events : [],\n\t\t\thandlers = ['onFrame', 'onResize'].concat(toolHandlers),\n\t\t\tparams = [],\n\t\t\targs = [],\n\t\t\tfunc,\n\t\t\tcompiled = typeof code === 'object' ? code : compile(code, options);\n\t\tcode = compiled.code;\n\t\tfunction expose(scope, hidden) {\n\t\t\tfor (var key in scope) {\n\t\t\t\tif ((hidden || !/^_/.test(key)) && new RegExp('([\\\\b\\\\s\\\\W]|^)'\n\t\t\t\t\t\t+ key.replace(/\\$/g, '\\\\$') + '\\\\b').test(code)) {\n\t\t\t\t\tparams.push(key);\n\t\t\t\t\targs.push(scope[key]);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\texpose({ __$__: __$__, $__: $__, paper: scope, tool: tool },\n\t\t\t\ttrue);\n\t\texpose(scope);\n\t\tcode = 'var module = { exports: {} }; ' + code;\n\t\tvar exports = Base.each(handlers, function(key) {\n\t\t\tif (new RegExp('\\\\s+' + key + '\\\\b').test(code)) {\n\t\t\t\tparams.push(key);\n\t\t\t\tthis.push('module.exports.' + key + ' = ' + key + ';');\n\t\t\t}\n\t\t}, []).join('\\n');\n\t\tif (exports) {\n\t\t\tcode += '\\n' + exports;\n\t\t}\n\t\tcode += '\\nreturn module.exports;';\n\t\tvar agent = paper.agent;\n\t\tif (document && (agent.chrome\n\t\t\t\t|| agent.firefox && agent.versionNumber < 40)) {\n\t\t\tvar script = document.createElement('script'),\n\t\t\t\thead = document.head || document.getElementsByTagName('head')[0];\n\t\t\tif (agent.firefox)\n\t\t\t\tcode = '\\n' + code;\n\t\t\tscript.appendChild(document.createTextNode(\n\t\t\t\t'document.__paperscript__ = function(' + params + ') {' +\n\t\t\t\t\tcode +\n\t\t\t\t'\\n}'\n\t\t\t));\n\t\t\thead.appendChild(script);\n\t\t\tfunc = document.__paperscript__;\n\t\t\tdelete document.__paperscript__;\n\t\t\thead.removeChild(script);\n\t\t} else {\n\t\t\tfunc = Function(params, code);\n\t\t}\n\t\tvar exports = func && func.apply(scope, args);\n\t\tvar obj = exports || {};\n\t\tBase.each(toolHandlers, function(key) {\n\t\t\tvar value = obj[key];\n\t\t\tif (value)\n\t\t\t\ttool[key] = value;\n\t\t});\n\t\tif (view) {\n\t\t\tif (obj.onResize)\n\t\t\t\tview.setOnResize(obj.onResize);\n\t\t\tview.emit('resize', {\n\t\t\t\tsize: view.size,\n\t\t\t\tdelta: new Point()\n\t\t\t});\n\t\t\tif (obj.onFrame)\n\t\t\t\tview.setOnFrame(obj.onFrame);\n\t\t\tview.requestUpdate();\n\t\t}\n\t\treturn exports;\n\t}\n\n\tfunction loadScript(script) {\n\t\tif (/^text\\/(?:x-|)paperscript$/.test(script.type)\n\t\t\t\t&& PaperScope.getAttribute(script, 'ignore') !== 'true') {\n\t\t\tvar canvasId = PaperScope.getAttribute(script, 'canvas'),\n\t\t\t\tcanvas = document.getElementById(canvasId),\n\t\t\t\tsrc = script.src || script.getAttribute('data-src'),\n\t\t\t\tasync = PaperScope.hasAttribute(script, 'async'),\n\t\t\t\tscopeAttribute = 'data-paper-scope';\n\t\t\tif (!canvas)\n\t\t\t\tthrow new Error('Unable to find canvas with id \"'\n\t\t\t\t\t\t+ canvasId + '\"');\n\t\t\tvar scope = PaperScope.get(canvas.getAttribute(scopeAttribute))\n\t\t\t\t\t\t|| new PaperScope().setup(canvas);\n\t\t\tcanvas.setAttribute(scopeAttribute, scope._id);\n\t\t\tif (src) {\n\t\t\t\tHttp.request({\n\t\t\t\t\turl: src,\n\t\t\t\t\tasync: async,\n\t\t\t\t\tmimeType: 'text/plain',\n\t\t\t\t\tonLoad: function(code) {\n\t\t\t\t\t\texecute(code, scope, src);\n\t\t\t\t\t}\n\t\t\t\t});\n\t\t\t} else {\n\t\t\t\texecute(script.innerHTML, scope, script.baseURI);\n\t\t\t}\n\t\t\tscript.setAttribute('data-paper-ignore', 'true');\n\t\t\treturn scope;\n\t\t}\n\t}\n\n\tfunction loadAll() {\n\t\tBase.each(document && document.getElementsByTagName('script'),\n\t\t\t\tloadScript);\n\t}\n\n\tfunction load(script) {\n\t\treturn script ? loadScript(script) : loadAll();\n\t}\n\n\tif (window) {\n\t\tif (document.readyState === 'complete') {\n\t\t\tsetTimeout(loadAll);\n\t\t} else {\n\t\t\tDomEvent.add(window, { load: loadAll });\n\t\t}\n\t}\n\n\treturn {\n\t\tcompile: compile,\n\t\texecute: execute,\n\t\tload: load,\n\t\tparse: parse,\n\t\tcalculateBinary: __$__,\n\t\tcalculateUnary: $__\n\t};\n\n}.call(this);\n\nvar paper = new (PaperScope.inject(Base.exports, {\n\tBase: Base,\n\tNumerical: Numerical,\n\tKey: Key,\n\tDomEvent: DomEvent,\n\tDomElement: DomElement,\n\tdocument: document,\n\twindow: window,\n\tSymbol: SymbolDefinition,\n\tPlacedSymbol: SymbolItem\n}))();\n\nif (paper.agent.node) {\n\t__webpack_require__(/*! ./node/extend.js */ \"?d469\")(paper);\n}\n\nif (true) {\n\t!(__WEBPACK_AMD_DEFINE_FACTORY__ = (paper),\n\t\t__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?\n\t\t(__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __webpack_require__, exports, module)) :\n\t\t__WEBPACK_AMD_DEFINE_FACTORY__),\n\t\t__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));\n} else {}\n\nreturn paper;\n}.call(this, typeof self === 'object' ? self : null);\n\n\n//# sourceURL=webpack:///./node_modules/paper/dist/paper-full.js?");
/***/ }),
/***/ "./src/index.js":
/*!**********************!*\
!*** ./src/index.js ***!
\**********************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
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eval("__webpack_require__.r(__webpack_exports__);\n/* harmony import */ var paper__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! paper */ \"./node_modules/paper/dist/paper-full.js\");\n/* harmony import */ var paper__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(paper__WEBPACK_IMPORTED_MODULE_0__);\n\n\nlet objects = [];\n\nclass Object{\n constructor(size, position, velocity, path){\n this.size = size;\n this.position = position;\n this.velocity = velocity;\n this.path = path;\n objects.push(this);\n }\n\n update(){\n this.position = this.position.add(this.velocity);\n this.path.position = this.position;\n\n if(this.position.x > canvas.width + this.size){\n this.position = new paper__WEBPACK_IMPORTED_MODULE_0__.Point(-this.size, this.position.y);\n }else if(this.position.x < -this.size){\n this.position = new paper__WEBPACK_IMPORTED_MODULE_0__.Point(canvas.width+this.size, this.position.y);\n }\n\n if(this.position.y > canvas.height + this.size){\n this.position = new paper__WEBPACK_IMPORTED_MODULE_0__.Point(this.position.x, -this.size);\n }else if(this.position.y < -this.size){\n this.position = new paper__WEBPACK_IMPORTED_MODULE_0__.Point(this.position.x, canvas.height+this.size);\n }\n }\n}\n\nclass Asteroid extends Object{\n constructor(size, position, velocity=new paper__WEBPACK_IMPORTED_MODULE_0__.Point(0, 0)){\n let path = new paper__WEBPACK_IMPORTED_MODULE_0__.Path.RegularPolygon(position, Math.max(5, Math.ceil(Math.random()*10)), size);\n path.segments.forEach(elem => {\n elem.point = elem.point.add(new paper__WEBPACK_IMPORTED_MODULE_0__.Point(Math.random()*15, Math.random()*15));\n });\n path.strokeColor = \"#ffffff\";\n super(size, position, velocity, path);\n } \n}\n\nclass Ship extends Object{\n constructor(size, position){\n let nodes = [\n new paper__WEBPACK_IMPORTED_MODULE_0__.Point(position.x, position.y-size),\n new paper__WEBPACK_IMPORTED_MODULE_0__.Point(position.x+size/2, position.y),\n new paper__WEBPACK_IMPORTED_MODULE_0__.Point(position.x-size/2, position.y),\n new paper__WEBPACK_IMPORTED_MODULE_0__.Point(position.x, position.y-size) \n ];\n\n let path = new paper__WEBPACK_IMPORTED_MODULE_0__.Path(nodes);\n path.strokeColor = \"#ffffff\";\n path.fillColor = \"#ffffffee\";\n \n super(size, position, new paper__WEBPACK_IMPORTED_MODULE_0__.Point(0, 0), path);\n this.forward = nodes[0].subtract(position);\n }\n\n rotate(angle){\n this.forward.angle += angle;\n this.path.rotate(angle)\n }\n\n fire(){\n new Bullet(this.position, this.forward);\n }\n};\n\nclass Bullet extends Object{\n constructor(position, velocity){\n let path = new paper__WEBPACK_IMPORTED_MODULE_0__.Path.Circle(position, 3);\n path.fillColor = \"#ffffff\";\n super(3, position, velocity, path);\n }\n}\n\n//initialization\nconst canvas = document.getElementById(\"canvas\");\ncanvas.width = window.innerWidth;\ncanvas.height = window.innerHeight;\npaper__WEBPACK_IMPORTED_MODULE_0__.setup(canvas);\n\nconst ship = new Ship(30, new paper__WEBPACK_IMPORTED_MODULE_0__.Point(canvas.width/2, canvas.height/2));\nfor(let i=0; i<30; i++){\n new Asteroid(30, new paper__WEBPACK_IMPORTED_MODULE_0__.Point(Math.random()* canvas.width, Math.random()*canvas.height), new paper__WEBPACK_IMPORTED_MODULE_0__.Point(Math.random()*5, Math.random()*5));\n}\n\npaper__WEBPACK_IMPORTED_MODULE_0__.view.onFrame = (event) => {\n objects.forEach(elem => {\n elem.update();\n });\n}\n\nconst tool = new paper__WEBPACK_IMPORTED_MODULE_0__.Tool();\n\ntool.on(\"keydown\", (event) => {\n if(event.character == \"w\"){\n ship.velocity = ship.velocity.add(ship.forward.normalize());\n }\n\n if(event.key == \"right\"){\n ship.rotate(3);\n }else if(event.key == \"left\"){\n ship.rotate(-3);\n }\n\n if(event.key == \"space\"){\n ship.fire();\n }\n});\n\n//# sourceURL=webpack:///./src/index.js?");
/***/ }),
/***/ "?d469":
/*!**********************************!*\
!*** ./node/extend.js (ignored) ***!
\**********************************/
/***/ (() => {
eval("/* (ignored) */\n\n//# sourceURL=webpack:///./node/extend.js_(ignored)?");
/***/ }),
/***/ "?974e":
/*!********************************!*\
!*** ./node/self.js (ignored) ***!
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eval("/* (ignored) */\n\n//# sourceURL=webpack:///./node/self.js_(ignored)?");
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