forked from qt-creator/qt-creator
e148d030f5
Although they are now supported by the lexer and parser, it is worth to remind that we still need to address an issue concerning the highlight of multiline literals (which with the advent of the new raw strings will become more common). Task-number: QTCREATORBUG-6722 Change-Id: I137337a9ac0152a1f8b9faded0b960c6fe3dd38a Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>
142 lines
4.1 KiB
C++
142 lines
4.1 KiB
C++
// Copyright (c) 2008 Roberto Raggi <roberto.raggi@gmail.com>
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#ifndef CPLUSPLUS_LEXER_H
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#define CPLUSPLUS_LEXER_H
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#include "CPlusPlusForwardDeclarations.h"
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#include "Token.h"
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namespace CPlusPlus {
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class CPLUSPLUS_EXPORT Lexer
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{
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Lexer(const Lexer &other);
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void operator =(const Lexer &other);
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public:
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enum State {
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State_Default,
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State_MultiLineComment,
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State_MultiLineDoxyComment
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};
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Lexer(TranslationUnit *unit);
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Lexer(const char *firstChar, const char *lastChar);
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~Lexer();
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Control *control() const;
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TranslationUnit *translationUnit() const;
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bool qtMocRunEnabled() const;
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void setQtMocRunEnabled(bool onoff);
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bool cxx0xEnabled() const;
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void setCxxOxEnabled(bool onoff);
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bool objCEnabled() const;
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void setObjCEnabled(bool onoff);
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void scan(Token *tok);
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inline void operator()(Token *tok)
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{ scan(tok); }
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unsigned tokenOffset() const;
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unsigned tokenLength() const;
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const char *tokenBegin() const;
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const char *tokenEnd() const;
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unsigned currentLine() const;
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bool scanCommentTokens() const;
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void setScanCommentTokens(bool onoff);
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bool scanKeywords() const;
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void setScanKeywords(bool onoff);
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bool scanAngleStringLiteralTokens() const;
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void setScanAngleStringLiteralTokens(bool onoff);
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void setStartWithNewline(bool enabled);
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int state() const;
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void setState(int state);
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bool isIncremental() const;
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void setIncremental(bool isIncremental);
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private:
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void scan_helper(Token *tok);
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void setSource(const char *firstChar, const char *lastChar);
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static int classify(const char *string, int length, bool q, bool cxx0x);
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static int classifyObjCAtKeyword(const char *s, int n);
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static int classifyOperator(const char *string, int length);
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void scanStringLiteral(Token *tok, unsigned char hint = 0);
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void scanRawStringLiteral(Token *tok, unsigned char hint = 0);
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void scanCharLiteral(Token *tok, unsigned char hint = 0);
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void scanUntilQuote(Token *tok, unsigned char quote);
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void scanNumericLiteral(Token *tok);
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void scanIdentifier(Token *tok, unsigned extraProcessedChars = 0);
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inline void yyinp()
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{
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if (++_currentChar == _lastChar)
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_yychar = 0;
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else {
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_yychar = *_currentChar;
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if (_yychar == '\n')
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pushLineStartOffset();
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}
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}
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void pushLineStartOffset();
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private:
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struct Flags {
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unsigned _isIncremental: 1;
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unsigned _scanCommentTokens: 1;
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unsigned _scanKeywords: 1;
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unsigned _scanAngleStringLiteralTokens: 1;
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unsigned _qtMocRunEnabled: 1;
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unsigned _cxx0xEnabled: 1;
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unsigned _objCEnabled: 1;
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};
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TranslationUnit *_translationUnit;
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const char *_firstChar;
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const char *_currentChar;
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const char *_lastChar;
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const char *_tokenStart;
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unsigned char _yychar;
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int _state;
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union {
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unsigned _flags;
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Flags f;
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};
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unsigned _currentLine;
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};
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} // namespace CPlusPlus
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#endif // CPLUSPLUS_LEXER_H
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