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/***************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Qt Software Information (qt-info@nokia.com)
**
**
** Non-Open Source Usage
**
** Licensees may use this file in accordance with the Qt Beta Version
** License Agreement, Agreement version 2.2 provided with the Software or,
** alternatively, in accordance with the terms contained in a written
** agreement between you and Nokia.
**
** GNU General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the packaging
** of this file. Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
**
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt GPL Exception
** version 1.2, included in the file GPL_EXCEPTION.txt in this package.
**
***************************************************************************/
// Copyright (c) 2008 Roberto Raggi <roberto.raggi@gmail.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#ifndef CPLUSPLUS_LEXER_H
#define CPLUSPLUS_LEXER_H
#include "CPlusPlusForwardDeclarations.h"
#include "Token.h"
CPLUSPLUS_BEGIN_HEADER
CPLUSPLUS_BEGIN_NAMESPACE
class CPLUSPLUS_EXPORT Lexer
{
Lexer(const Lexer &other);
void operator =(const Lexer &other);
public:
enum State {
DefaultState,
MultiLineCommentState
};
Lexer(TranslationUnit *unit);
Lexer(const char *firstChar, const char *lastChar);
~Lexer();
Control *control() const;
TranslationUnit *translationUnit() const;
bool qtMocRunEnabled() const;
void setQtMocRunEnabled(bool onoff);
void scan(Token *tok);
inline void operator()(Token *tok)
{ scan(tok); }
unsigned tokenOffset() const;
unsigned tokenLength() const;
const char *tokenBegin() const;
const char *tokenEnd() const;
unsigned currentLine() const;
bool scanCommentTokens() const;
void setScanCommentTokens(bool onoff);
bool scanKeywords() const;
void setScanKeywords(bool onoff);
bool scanAngleStringLiteralTokens() const;
void setScanAngleStringLiteralTokens(bool onoff);
void setStartWithNewline(bool enabled);
int state() const;
void setState(int state);
bool isIncremental() const;
void setIncremental(bool isIncremental);
private:
void scan_helper(Token *tok);
void setSource(const char *firstChar, const char *lastChar);
static int classify(const char *string, int length, bool q);
inline void yyinp()
{
if (++_currentChar == _lastChar)
_yychar = 0;
else {
_yychar = *_currentChar;
if (_yychar == '\n')
pushLineStartOffset();
}
}
void pushLineStartOffset();
private:
TranslationUnit *_translationUnit;
const char *_firstChar;
const char *_currentChar;
const char *_lastChar;
const char *_tokenStart;
char _yychar;
int _state;
union {
unsigned _flags;
struct {
unsigned _isIncremental: 1;
unsigned _scanCommentTokens: 1;
unsigned _scanKeywords: 1;
unsigned _scanAngleStringLiteralTokens: 1;
unsigned _qtMocRunEnabled: 1;
};
};
unsigned _currentLine;
};
CPLUSPLUS_END_NAMESPACE
CPLUSPLUS_END_HEADER
#endif // CPLUSPLUS_LEXER_H
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