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73 lines
2.2 KiB
73 lines
2.2 KiB
/*
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* Copyright (c) 2002-2003 Jesper K. Pedersen <blackie@kde.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License version 2 as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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**/
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#ifndef REGEXP_H
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#define REGEXP_H
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#include <qdom.h>
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#include <qptrlist.h>
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class CompoundRegExp;
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class ErrorMap;
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/**
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Abstract syntax tree for regular expressions.
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@internal
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*/
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class RegExp
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{
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public:
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RegExp( bool selected );
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virtual ~RegExp();
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virtual int precedence() const = 0;
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virtual QDomNode toXml( QDomDocument* doc ) const = 0;
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virtual bool load( QDomElement, const QString& version ) = 0;
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QString toXmlString() const;
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void check( ErrorMap& );
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virtual bool check( ErrorMap&, bool first, bool last ) = 0;
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void addChild( RegExp* child );
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void removeChild( RegExp* child );
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void setParent( RegExp* parent );
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RegExp* clone() const;
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virtual bool operator==( const RegExp& other ) const { return ( type() == other.type() ); }
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enum RegExpType { CONC, TEXT, DOT, POSITION, REPEAT, ALTN, COMPOUND, LOOKAHEAD, TEXTRANGE };
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virtual RegExpType type() const = 0;
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virtual void replacePart( CompoundRegExp* /* replacement */ ) {}
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bool isSelected() const { return _selected; }
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void setSelected( bool b ) { _selected = b; }
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protected:
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RegExp* readRegExp( QDomElement top, const QString& version );
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private:
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RegExp() {} // disable
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QPtrList<RegExp> _children;
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RegExp* _parent;
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bool _destructing;
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bool _selected;
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};
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typedef QPtrList<RegExp> RegExpList;
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typedef QPtrListIterator<RegExp> RegExpListIt;
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#endif // REGEXP_H
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