parenmatcher.h

qtopia的源程序,一种嵌入式图形操作系统

/****************************************************************************
**
** Copyright (C) 1992-$THISYEAR$ Trolltech AS. All rights reserved.
**
** This file is part of the $MODULE$ of the Qt Toolkit.
**
** $LICENSE$
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#ifndef PARENMATCHER_H
#define PARENMATCHER_H

#include <QString>
#include <Q3ValueList>

class Q3TextCursor;

struct Paren
{
    Paren() : type(Open), chr(' '), pos(-1) {}
    Paren(int t, const QChar &c, int p) : type((Type)t), chr(c), pos(p) {}
    enum Type { Open, Closed };
    Type type;
    QChar chr;
    int pos;

    Q_DUMMY_COMPARISON_OPERATOR(Paren)
};

typedef Q3ValueList<Paren> ParenList;

class ParenMatcher
{
public:
    enum Selection {
	Match = 1,
	Mismatch
    };

    ParenMatcher();
    virtual inline ~ParenMatcher() {}

    virtual bool match(Q3TextCursor *c);

    void setEnabled(bool b) { enabled = b; }

private:
    bool checkOpenParen(Q3TextCursor *c);
    bool checkClosedParen(Q3TextCursor *c);

    bool enabled;

};

#endif