137 lines
4.4 KiB
C++
137 lines
4.4 KiB
C++
/**
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* @file llkeywords.h
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* @brief Keyword list for LSL
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*
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* $LicenseInfo:firstyear=2001&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LL_LLKEYWORDS_H
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#define LL_LLKEYWORDS_H
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#include "llstring.h"
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#include "v3color.h"
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#include <map>
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#include <list>
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#include <deque>
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#include "llpointer.h"
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class LLTextSegment;
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typedef LLPointer<LLTextSegment> LLTextSegmentPtr;
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class LLKeywordToken
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{
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public:
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enum TOKEN_TYPE { WORD, LINE, TWO_SIDED_DELIMITER, ONE_SIDED_DELIMITER };
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LLKeywordToken( TOKEN_TYPE type, const LLColor3& color, const LLWString& token, const LLWString& tool_tip )
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:
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mType( type ),
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mToken( token ),
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mColor( color ),
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mToolTip( tool_tip )
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{
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}
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S32 getLength() const { return mToken.size(); }
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BOOL isHead(const llwchar* s) const;
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const LLWString& getToken() const { return mToken; }
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const LLColor3& getColor() const { return mColor; }
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TOKEN_TYPE getType() const { return mType; }
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const LLWString& getToolTip() const { return mToolTip; }
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#ifdef _DEBUG
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void dump();
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#endif
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private:
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TOKEN_TYPE mType;
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LLWString mToken;
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LLColor3 mColor;
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LLWString mToolTip;
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};
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class LLKeywords
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{
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public:
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LLKeywords();
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~LLKeywords();
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BOOL loadFromFile(const std::string& filename);
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BOOL isLoaded() const { return mLoaded; }
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void findSegments(std::vector<LLTextSegmentPtr> *seg_list, const LLWString& text, const LLColor4 &defaultColor, class LLTextEditor& editor );
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// Add the token as described
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void addToken(LLKeywordToken::TOKEN_TYPE type,
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const std::string& key,
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const LLColor3& color,
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const std::string& tool_tip = LLStringUtil::null);
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// This class is here as a performance optimization.
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// The word token map used to be defined as std::map<LLWString, LLKeywordToken*>.
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// This worked, but caused a performance bottleneck due to memory allocation and string copies
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// because it's not possible to search such a map without creating an LLWString.
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// Using this class as the map index instead allows us to search using segments of an existing
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// text run without copying them first, which greatly reduces overhead in LLKeywords::findSegments().
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class WStringMapIndex
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{
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public:
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// copy constructor
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WStringMapIndex(const WStringMapIndex& other);
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// constructor from a string (copies the string's data into the new object)
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WStringMapIndex(const LLWString& str);
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// constructor from pointer and length
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// NOTE: does NOT copy data, caller must ensure that the lifetime of the pointer exceeds that of the new object!
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WStringMapIndex(const llwchar *start, size_t length);
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~WStringMapIndex();
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bool operator<(const WStringMapIndex &other) const;
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private:
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void copyData(const llwchar *start, size_t length);
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const llwchar *mData;
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size_t mLength;
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bool mOwner;
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};
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typedef std::map<WStringMapIndex, LLKeywordToken*> word_token_map_t;
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typedef word_token_map_t::const_iterator keyword_iterator_t;
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keyword_iterator_t begin() const { return mWordTokenMap.begin(); }
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keyword_iterator_t end() const { return mWordTokenMap.end(); }
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#ifdef _DEBUG
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void dump();
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#endif
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private:
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LLColor3 readColor(const std::string& s);
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void insertSegment(std::vector<LLTextSegmentPtr>& seg_list, LLTextSegmentPtr new_segment, S32 text_len, const LLColor4 &defaultColor, class LLTextEditor& editor);
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void insertSegments(const LLWString& wtext, std::vector<LLTextSegmentPtr>& seg_list, LLKeywordToken* token, S32 text_len, S32 seg_start, S32 seg_end, const LLColor4 &defaultColor, LLTextEditor& editor);
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BOOL mLoaded;
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word_token_map_t mWordTokenMap;
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typedef std::deque<LLKeywordToken*> token_list_t;
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token_list_t mLineTokenList;
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token_list_t mDelimiterTokenList;
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};
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#endif // LL_LLKEYWORDS_H
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