bool Options::parse_args()

in src/options.cc [165:202]

• 30 lines of code
• 5 McCabe index (conditional complexity)

	bool Options::parse_args(int argc, char ** argv) {

		static bool donecopy = false;
		// enough space for a zero on the end
		static std::vector<argp_option> argparse_options(opt_map.size()+1);
		// copy options to array
		if (!donecopy) {
			unsigned i = 0;
			for (auto it = opt_map.begin(); it != opt_map.end(); ++it, ++i) {
				memcpy(&argparse_options[i], &(it->second.opt), sizeof(argp_option));
			}
			// zero last element
			memset(&argparse_options[argparse_options.size()-1], 0, sizeof(argp_option));
		}
		donecopy = true;

		static const struct argp the_argp = {
			options:&argparse_options[0],
			parser:arg_parser,
			args_doc:non_opt_doc,
			doc:docstring,
			children:NULL,
			help_filter:NULL,
			argp_domain:NULL
		};

		if (argc <= 1) {
			fprintf(stderr, "No target files specified!\n");
			argp_help((const struct argp *)&the_argp, stderr, ARGP_HELP_SHORT_USAGE | ARGP_HELP_SEE, argv[0]);
			return false;
		}

		if(argp_parse((const struct argp *)&the_argp, argc, argv, 0, NULL, (void *)this)) {
			return false;
		}

		return true;
	}