url.hpp

// Nonolith Connect
// https://github.com/nonolith/connect
// URL parsing
// Released under the terms of the GNU GPLv3+
// (C) 2012 Nonolith Labs, LLC
// Authors:
//   Kevin Mehall <km@kevinmehall.net>

#pragma once
#include <string>
#include <vector>
#include <map>
#include <boost/lexical_cast.hpp>
using std::string;

void parse_query(const string& query, std::map<string, string>& map);
string map_get(std::map<string, string>& map, const string key, const string def="");

template <class T>
T map_get_num(std::map<string, string>& map, const string key, const T def){
	std::map<std::string, std::string>::iterator it = map.find(key);
	if (it != map.end()){
		return boost::lexical_cast<T>(it->second);
	}else{
		return def;
	}
}

struct Url{
	Url(const string url);
	std::vector<std::string> pathparts;
	std::map<std::string, std::string> params;
};

struct UrlPath{
	UrlPath(Url &url_, unsigned level_):url(url_), level(level_){}
	
	Url& url;
	const unsigned level;
	
	UrlPath sub(){
		return UrlPath(url, level+1);
	}
	
	const string& get(){
		return url.pathparts.at(level);
	}
	
	bool matches(string m){
		return get() == m;
	}
	
	bool leaf(){
		return url.pathparts.size() <= level;
	}
	
	string param(string key, string def=""){
		return map_get(url.params, key, def);
	}
};