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

#ifndef _Matcher_hpp_
#define _Matcher_hpp_

#include <menes/platform.hpp>

#ifdef MENES_PRAGMA_ONCE
#pragma once
#endif

#include <menes-ext/exception.hpp>
#include <menes-ext/string.hpp>
#include <menes-ext/vector.hpp>

#include <pcre.h>

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

#endif//_Matcher_hpp_