llkeywords.h
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- /**
- * @file llkeywords.h
- * @brief Keyword list for LSL
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, 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://secondlifegrid.net/programs/open_source/licensing/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://secondlifegrid.net/programs/open_source/licensing/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>
- #include "llpointer.h"
- class LLTextSegment;
- typedef LLPointer<LLTextSegment> LLTextSegmentPtr;
- 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 std::string& filename);
- BOOL isLoaded() const { return mLoaded; }
- void findSegments(std::vector<LLTextSegmentPtr> *seg_list, const LLWString& text, const LLColor4 &defaultColor, class LLTextEditor& editor );
- // Add the token as described
- void addToken(LLKeywordToken::TOKEN_TYPE type,
- const std::string& key,
- const LLColor3& color,
- const std::string& tool_tip = LLStringUtil::null);
-
- // This class is here as a performance optimization.
- // The word token map used to be defined as std::map<LLWString, LLKeywordToken*>.
- // This worked, but caused a performance bottleneck due to memory allocation and string copies
- // because it's not possible to search such a map without creating an LLWString.
- // Using this class as the map index instead allows us to search using segments of an existing
- // text run without copying them first, which greatly reduces overhead in LLKeywords::findSegments().
- class WStringMapIndex
- {
- public:
- // copy constructor
- WStringMapIndex(const WStringMapIndex& other);
- // constructor from a string (copies the string's data into the new object)
- WStringMapIndex(const LLWString& str);
- // constructor from pointer and length
- // NOTE: does NOT copy data, caller must ensure that the lifetime of the pointer exceeds that of the new object!
- WStringMapIndex(const llwchar *start, size_t length);
- ~WStringMapIndex();
- bool operator<(const WStringMapIndex &other) const;
- private:
- void copyData(const llwchar *start, size_t length);
- const llwchar *mData;
- size_t mLength;
- bool mOwner;
- };
- typedef std::map<WStringMapIndex, 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 std::string& s);
- void insertSegment(std::vector<LLTextSegmentPtr> *seg_list, LLTextSegmentPtr new_segment, S32 text_len, const LLColor4 &defaultColor, class LLTextEditor& editor);
- 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