diff -r 000000000000 -r 1918ee327afb src/tools/moc/parser.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/tools/moc/parser.h Mon Jan 11 14:00:40 2010 +0000 @@ -0,0 +1,108 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the tools applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef PARSER_H +#define PARSER_H + +#include +#include "symbols.h" + +QT_BEGIN_NAMESPACE + +class Parser +{ +public: + Parser():index(0), displayWarnings(true){} + Symbols symbols; + int index; + bool displayWarnings; + + QStack currentFilenames; + + inline bool hasNext() const { return (index < symbols.size()); } + inline Token next() { if (index >= symbols.size()) return NOTOKEN; return symbols.at(index++).token; } + bool test(Token); + void next(Token); + void next(Token, const char *msg); + inline void prev() {--index;} + inline Token lookup(int k = 1); + inline const Symbol &symbol_lookup(int k = 1) { return symbols.at(index-1+k);} + inline Token token() { return symbols.at(index-1).token;} + inline QByteArray lexem() { return symbols.at(index-1).lexem();} + inline QByteArray unquotedLexem() { return symbols.at(index-1).unquotedLexem();} + inline const Symbol &symbol() { return symbols.at(index-1);} + + void error(int rollback); + void error(const char *msg = 0); + void warning(const char * = 0); + +}; + +inline bool Parser::test(Token token) +{ + if (index < symbols.size() && symbols.at(index).token == token) { + ++index; + return true; + } + return false; +} + +inline Token Parser::lookup(int k) +{ + const int l = index - 1 + k; + return l < symbols.size() ? symbols.at(l).token : NOTOKEN; +} + +inline void Parser::next(Token token) +{ + if (!test(token)) + error(); +} + +inline void Parser::next(Token token, const char *msg) +{ + if (!test(token)) + error(msg); +} + +QT_END_NAMESPACE + +#endif