// Matcher STL
//
// Douglas Thrift
//
// $Id$

#ifndef _Matcher_hpp_
#define _Matcher_hpp_

#if defined(_MSC_VER)
#if _MSC_VER > 1000
#pragma once
#endif
#endif

#include <string>
#include <vector>

#include <pcre.h>

class Matcher
{
private:
	::pcre* expression;
	std::vector<std::string> substrings;
public:
	int options;
	static int defaults;
	Matcher(int options = defaults) : expression(NULL), options(options) {}
	Matcher(const std::string& expression, int options = defaults) : expression(NULL), options(options) { (*this)(expression); }
	~Matcher() { if (expression != NULL) ::pcre_free(expression); }
	bool match(const std::string& stuff);
	std::vector<std::string>::size_type size() const { return substrings.size(); }
	Matcher& operator()(const std::string& expression);
	const std::string& operator[](std::vector<std::string>::size_type index) const { return substrings[index]; }
	operator std::string() const { return substrings[0]; }
	bool operator==(const std::string& stuff) { return match(stuff); }
	bool operator!=(const std::string& stuff) { return !match(stuff); }
// friends:
	friend bool operator==(const std::string& stuff, Matcher& matcher) { return matcher == stuff; }
	friend bool operator!=(const std::string& stuff, Matcher& matcher) { return matcher != stuff; }
};

#endif // _Matcher_hpp_