Parse args

options.cpp

@@ -55,6 +55,28 @@ void OptionsBase::read(const std::string& filename) {
 		kv[key] = value;
 	}
 
+	for (auto* opt : getOptions()) {
+		if (kv.count(opt->key)) {
+			opt->setFromString(kv[opt->key]);
+		}
+	}
+}
+
+void OptionsBase::parse(const int argc, const char ** argv) {
+	std::unordered_map<std::string, std::string> kv;
+
+	std::string key, value, line;
+
+	for(int i = 0; i < argc; i++) {
+		line = std::string(argv[i]);
+		if (line.size() < 1 || line[0] == '#') continue; // skip comment lines TODO make better
+		auto pos = line.find('=');
+		if (pos == std::string::npos) continue; // skip invalid lines
+		std::string key = line.substr(0, pos);
+		std::string value = line.substr(pos + 1);
+		kv[key] = value;
+	}
+
 	for (auto* opt : getOptions()) {
 		if (kv.count(opt->key)) {
 			opt->setFromString(kv[opt->key]);