Method parse

src/unpackertool/arg_handler.cpp:164–231

* Parses the arguments from the command-line. * * @param argc Number of arguments. * @param argv Raw argument values. * * @return True if the parsing was successful, otherwise false. */

 * @return True if the parsing was successful, otherwise false.
 */
bool ArgHandler::parse(int argc, char** argv)
{
	resetArgData();

	// argc should never be less than 1
	if (argc < 1)
		return false;

	// skip the argv[0] as it is the executable name
	for (int i = 1; i < argc; ++i)
	{
		ArgInfo* arg = nullptr;

		// We expect it to be a long option
		if (strncmp(argv[i], "--", 2) == 0)
		{
			std::string longOpt = std::string(argv[i] + 2);

			// -- terminates the argument input in the most cases
			if (longOpt.empty())
				break;

			ArgMap::iterator itr = _argMap.find(longOpt);
			if (itr == _argMap.end())
				return false;

			arg = (*itr).second;
		}
		// else it is short option
		else if (argv[i][0] == '-')
		{
			// there should be no more than 1 character after '-'
			if (strlen(argv[i]) > 2)
				return false;

			ArgMap::iterator itr = _argMap.find(std::string(&argv[i][1], 1));
			if (itr == _argMap.end())
				return false;

			arg = (*itr).second;
		}
		// Doesn't belong to any argument, it is a raw input
		else
		{
			_rawInputs.push_back(std::string(argv[i]));
			continue;
		}

		// Option already used
		if (arg->_data->used)
			return false;

		arg->_data->used = true;
		if (arg->_hasInput)
		{
			// check if we won't access out of argv memory
			if (i + 1 >= argc)
				return false;