readesm/OptionParser.cpp at master · QB4-dev/readesm · GitHub

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#include "OptionParser.h"

#include <QString>

OptionParser::OptionParser(bool withQt) {
	if (withQt) {
		possibleFlags << "cmap" << "widgetcount" << "reverse";
		possibleOptions << "style" << "stylesheet" << "session" << "graphicssystem" << "qmljsdebugger" << "display" << "geometry" << "fn" << "font" << "bg" << "background" << "fg" << "foreground" << "btn" << "button" << "name" << "title" << "visual" << "ncols" << "im" << "inputstyle";
	}
	addFlag("help","h",tr("Show help text"));
}

void OptionParser::addOption(const QString& longName, const QString& shortName, const QString& description) {
	optionAliases[shortName] = longName;
	optionAliases[longName] = shortName;
	possibleOptions << longName << shortName;
	optionDescriptions << ("--" + longName + " | -" + shortName + ": " + description);
}

void OptionParser::addFlag(const QString& longName, const QString& shortName, const QString& description) {
	optionAliases[shortName] = longName;
	optionAliases[longName] = shortName;
	possibleFlags << longName << shortName;
	flagDescriptions << ("--" + longName + " | -" + shortName + ": " + description);
}

bool OptionParser::parseArgs(int argc, char* argv[]) {
	QStringList cmdArgs;
	for (int j = 1; j < argc; ++j) {
		cmdArgs << QString::fromUtf8(argv[j]);
	}
	QString optionName;
	for (int j = 0; j < cmdArgs.size(); ++j) {
		if (!optionName.isEmpty()) {
			options[optionName] = cmdArgs[j];
			optionName = QString();
		} else if (cmdArgs[j][0] == '-' && cmdArgs[j].size() > 1) {
			int start = 1;
			if (cmdArgs[j][1] == '-') {
				start = 2;
			}
			optionName = cmdArgs[j].mid(start);
			if (possibleFlags.contains(optionName)) {
				flags << optionName;
				optionName = QString();
			}
		} else {
			arguments << cmdArgs[j];
		}
	}
	flagDescriptions.sort();
	optionDescriptions.sort();
	return true;
}

QString OptionParser::get(const QString& argument, const QString& elsevalue) const {
	if (options.contains(argument)) {
		return options[argument];
	}
	if (options.contains(optionAliases[argument])) {
		return options[optionAliases[argument]];
	}
	return elsevalue;
}

QString OptionParser::getArgument(int j) const {
	return arguments[j];
}

bool OptionParser::checkFlag(const QString& argument) const {
	return flags.contains(argument) || (optionAliases.contains(argument) && options.contains(optionAliases[argument]));
}

int OptionParser::argumentCount() const {
	return arguments.size();
}

QString OptionParser::helpText() const {
	return tr("Possible Flags:") + "\n\n  " + flagDescriptions.join("\n  ") + "\n\n" + tr("Possible Options:") + "\n\n  " + optionDescriptions.join("\n  ");
}