ConfigFile.cpp

#pragma warning(disable: 4786)
#include "ConfigFile.h"

#include <fstream>

std::string trim(std::string const& source, char const* delims = " \t\r\n") {
	std::string result(source);
	std::string::size_type index = result.find_last_not_of(delims);
	if(index != std::string::npos)
		result.erase(++index);

	index = result.find_first_not_of(delims);
	if(index != std::string::npos)
		result.erase(0, index);
	else
		result.erase();
	return result;
}

ConfigFile::ConfigFile(std::string const& configFile) {
	std::ifstream file(configFile.c_str());

	std::string line;
	std::string name;
	std::string value;
	std::string inSection;
	int posEqual;
	while (std::getline(file,line)) {

		if (! line.length()) continue;

		if (line[0] == '#') continue;
		if (line[0] == ';') continue;

		if (line[0] == '[') {
			inSection=trim(line.substr(1,line.find(']')-1));
			continue;
		}

		posEqual=line.find('=');
		name  = trim(line.substr(0,posEqual));
		value = trim(line.substr(posEqual+1));

		content_[inSection+'/'+name]=Chameleon(value);
  }
}


Chameleon const& ConfigFile::Value(std::string const& section, std::string const& entry) const {

	std::map<std::string,Chameleon>::const_iterator ci = content_.find(section + '/' + entry);

	if (ci == content_.end()) throw "does not exist";

	return ci->second;
}

Chameleon const& ConfigFile::Value(std::string const& section, std::string const& entry, double value) {
	try {
		return Value(section, entry);
	} catch(const char *) {
		return content_.insert(std::make_pair(section+'/'+entry, Chameleon(value))).first->second;
	}
}

Chameleon const& ConfigFile::Value(std::string const& section, std::string const& entry, std::string const& value) {
	try {
		return Value(section, entry);
	} catch(const char *) {
		return content_.insert(std::make_pair(section+'/'+entry, Chameleon(value))).first->second;
  }
}