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parser.cpp

/****************************************************************************
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the tools applications of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 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.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
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**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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****************************************************************************/

#include "parser.h"
#include "utils.h"
#include <stdio.h>
#include <stdlib.h>

#ifdef USE_LEXEM_STORE
Symbol::LexemStore Symbol::lexemStore;
#endif

static const char *error_msg = 0;

#ifdef Q_CC_MSVC
#define ErrorFormatString "%s(%d): "
#else
#define ErrorFormatString "%s:%d: "
#endif

void Parser::error(int rollback) {
    index -= rollback;
    error();
}
void Parser::error(const char *msg) {
    if (msg || error_msg)
        qWarning(ErrorFormatString "Error: %s",
                 currentFilenames.top().constData(), symbol().lineNum, msg?msg:error_msg);
    else
        qWarning(ErrorFormatString "Parse error at \"%s\"",
                 currentFilenames.top().constData(), symbol().lineNum, symbol().lexem().data());
    exit(EXIT_FAILURE);
}

void Parser::warning(const char *msg) {
    if (displayWarnings && msg)
        fprintf(stderr, ErrorFormatString "Warning: %s\n",
                currentFilenames.top().constData(), qMax(0, index > 0 ? symbol().lineNum : 0), msg);
}



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