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100 lines
2.2 KiB
C++
100 lines
2.2 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Copyright (C) 2016 Ivailo Monev
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**
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** This file is part of the utils of the Katie Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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**
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef RECOGNIZER_H
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#define RECOGNIZER_H
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#include <QtCore/QDebug>
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#include <QtCore/QString>
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#include <QtCore/QFile>
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#include <QtCore/QTextStream>
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#include "grammar_p.h"
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#include "lalr.h"
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#include <cstdlib>
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QT_BEGIN_NAMESPACE
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class Recognizer: protected grammar
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{
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public:
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Recognizer (Grammar *grammar, bool no_lines);
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~Recognizer();
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bool parse (const QString &input_file = QString ());
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inline QString decls () const { return _M_decls; }
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inline QString impls () const { return _M_impls; }
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protected:
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inline void reallocateStack ();
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inline QString &sym (int index)
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{ return sym_stack [tos + index - 1]; }
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protected: // scanner
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int nextToken();
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inline void inp ()
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{
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if (_M_currentChar != _M_lastChar)
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{
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ch = *_M_currentChar++;
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if (ch == QLatin1Char('\n'))
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++_M_line;
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}
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else
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ch = QChar();
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}
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QString expand (const QString &text) const;
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protected:
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// recognizer
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int tos;
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int stack_size;
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QVector<QString> sym_stack;
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int *state_stack;
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QString _M_contents;
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QString::const_iterator _M_firstChar;
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QString::const_iterator _M_lastChar;
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QString::const_iterator _M_currentChar;
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// scanner
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QChar ch;
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int _M_line;
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int _M_action_line;
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Grammar *_M_grammar;
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RulePointer _M_current_rule;
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QString _M_input_file;
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QString _M_decls;
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QString _M_impls;
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QString _M_current_value;
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bool _M_no_lines;
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};
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QT_END_NAMESPACE
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#endif // RECOGNIZER_H
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