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lib/cli: fix trailing incomplete unpositional arguments 

The parser used to rely on the next iteration of the loop to detect
if an unpositional argument was missing its value, this has now been
fixed by adding an additional check on unpositional arguments waiting
for a value that detects if the end of the loop has been reached
BodgeMaster-unfinished
BodgeMaster 2022-07-20 18:30:25 +02:00
parent 44a20c875a
commit db3b133f88
1 changed files with 17 additions and 9 deletions
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26
src/lib/cli.cpp
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@ -107,6 +107,10 @@ namespace CLI {
// unpositional argument
argumentsByLongName[argumentName]->present = true;
argumentWaitingForValue = argumentsByLongName[argumentName];
if (i+1 == argc) {
this->wrongUsage = true;
this->wrongUsageMessages.push_back(std::string("Argument expects value but has none: ")+argumentName);
}
} else {
this->wrongUsage = true;
this->wrongUsageMessages.push_back(std::string("Unknown argument or flag: ")+argument);
@ -129,23 +133,27 @@ namespace CLI {
// length is defined as
// (std::__cxx11::basic_string<char>::size_type ?)
// starting at 1 because 0 is '-'
for (int i=1; i<(int) argument.length(); i++) {
for (int j=1; j<(int) argument.length(); j++) {
//is argument or flag?
if (flagsByShortName.contains(argument[i])) {
flagsByShortName[argument[i]]->present = true;
} else if (argumentsByShortName.contains(argument[i])) {
argumentsByShortName[argument[i]]->present = true;
if (flagsByShortName.contains(argument[j])) {
flagsByShortName[argument[j]]->present = true;
} else if (argumentsByShortName.contains(argument[j])) {
argumentsByShortName[argument[j]]->present = true;
//FIXME: see above
if (i+1==(int) argument.length()) {
argumentWaitingForValue = argumentsByShortName[argument[i]];
if (j+1==(int) argument.length()) {
argumentWaitingForValue = argumentsByShortName[argument[j]];
if (i+1 == argc) {
this->wrongUsage = true;
this->wrongUsageMessages.push_back(std::string("Argument expects value but has none: ")+argument.substr(j, 1));
}
} else {
//assume the rest of the argv is a concatenated argument value
argumentsByShortName[argument[i]]->value = argument.substr(i+1, argument.length()-i-1);
argumentsByShortName[argument[j]]->value = argument.substr(j+1, argument.length()-j-1);
break;
}
} else {
this->wrongUsage = true;
this->wrongUsageMessages.push_back(std::string("Unknown argument or flag(s): ")+argument.substr(i, argument.length()-i));
this->wrongUsageMessages.push_back(std::string("Unknown argument or flag(s): ")+argument.substr(j, argument.length()-j));
// err on the side of caution to ensure that
// no unwanted options get activated on programs
// that deal gracefully with unrecognized command