Parse args

Makefile

@@ -1,6 +1,6 @@
 CXX ?= g++
 
-VERSION := 0.0.1
+VERSION := 0.0.2
 
 TARGET_NOVERSION := liboptions.so
 TARGET := $(TARGET_NOVERSION).$(VERSION)
@@ -37,9 +37,11 @@ clean:
 install:
 	cp $(TARGET) /usr/lib/$(TARGET)
 	cp options.h /usr/include/options.h
+	cp options_headeronly.h /usr/include/options_headeronly.h
 	ln -s /usr/lib/$(TARGET) /usr/lib/$(TARGET_NOVERSION)
 	
 uninstall:
 	unlink /usr/lib/$(TARGET_NOVERSION)
 	rm /usr/lib/$(TARGET)
-	rm /usr/include/options.h
+	rm /usr/include/options.h
+	rm /usr/include/options_headeronly.h

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]);

options.h

@@ -31,6 +31,7 @@ namespace OptionLib {
 		const std::vector<__OptionBase*>& getOptions() const;
 		void store(const std::string& filename, std::string comment="");
 		void read(const std::string& filename);
+		void parse(const int argc, const char ** argv);
 	};
 
 	template<typename T>

options_headeronly.h

@@ -85,6 +85,28 @@ namespace OptionLib {
 				}
 			}
 		}
+		
+		void 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]);
+				}
+			}
+		}
 
 	};