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/** 
 * @file llkeywords.h
 * @brief Keyword list for LSL
 *
 * $LicenseInfo:firstyear=2001&license=viewergpl$
 * 
 * Copyright (c) 2001-2007, Linden Research, Inc.
 * 
 * Second Life Viewer Source Code
 * The source code in this file ("Source Code") is provided by Linden Lab
 * to you under the terms of the GNU General Public License, version 2.0
 * ("GPL"), unless you have obtained a separate licensing agreement
 * ("Other License"), formally executed by you and Linden Lab.  Terms of
 * the GPL can be found in doc/GPL-license.txt in this distribution, or
 * online at http://secondlife.com/developers/opensource/gplv2
 * 
 * There are special exceptions to the terms and conditions of the GPL as
 * it is applied to this Source Code. View the full text of the exception
 * in the file doc/FLOSS-exception.txt in this software distribution, or
 * online at http://secondlife.com/developers/opensource/flossexception
 * 
 * By copying, modifying or distributing this software, you acknowledge
 * that you have read and understood your obligations described above,
 * and agree to abide by those obligations.
 * 
 * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
 * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
 * COMPLETENESS OR PERFORMANCE.
 * $/LicenseInfo$
 */

#ifndef LL_LLKEYWORDS_H
#define LL_LLKEYWORDS_H


#include "llstring.h"
#include "v3color.h"
#include <map>
#include <list>
#include <deque>

class LLTextSegment;


class LLKeywordToken
{
public:
	enum TOKEN_TYPE { WORD, LINE, TWO_SIDED_DELIMITER, ONE_SIDED_DELIMITER };

	LLKeywordToken( TOKEN_TYPE type, const LLColor3& color, const LLWString& token, const LLWString& tool_tip ) 
		:
		mType( type ),
		mToken( token ),
		mColor( color ),
		mToolTip( tool_tip )
	{
	}

	S32					getLength() const		{ return mToken.size(); }
	BOOL				isHead(const llwchar* s) const;
	const LLWString&	getToken() const		{ return mToken; }
	const LLColor3&		getColor() const		{ return mColor; }
	TOKEN_TYPE			getType()  const		{ return mType; }
	const LLWString&	getToolTip() const		{ return mToolTip; }

#ifdef _DEBUG
	void		dump();
#endif

private:
	TOKEN_TYPE	mType;
	LLWString	mToken;
	LLColor3	mColor;
	LLWString	mToolTip;
};

class LLKeywords
{
public:
	LLKeywords();
	~LLKeywords();

	BOOL		loadFromFile(const LLString& filename);
	BOOL		isLoaded() const	{ return mLoaded; }

	void		findSegments(std::vector<LLTextSegment *> *seg_list, const LLWString& text, const LLColor4 &defaultColor );

	// Add the token as described
	void addToken(LLKeywordToken::TOKEN_TYPE type,
					const LLString& key,
					const LLColor3& color,
					const LLString& tool_tip = LLString::null);

	typedef std::map<LLWString, LLKeywordToken*> word_token_map_t;
	typedef word_token_map_t::const_iterator keyword_iterator_t;
	keyword_iterator_t begin() const { return mWordTokenMap.begin(); }
	keyword_iterator_t end() const { return mWordTokenMap.end(); }

#ifdef _DEBUG
	void		dump();
#endif

private:
	LLColor3	readColor(const LLString& s);
	void		insertSegment(std::vector<LLTextSegment *> *seg_list, LLTextSegment* new_segment, S32 text_len, const LLColor4 &defaultColor);

	BOOL		mLoaded;
	word_token_map_t mWordTokenMap;
	typedef std::deque<LLKeywordToken*> token_list_t;
	token_list_t mLineTokenList;
	token_list_t mDelimiterTokenList;
};

#endif  // LL_LLKEYWORDS_H