saxfilter.h

/*
 *  saxfilter.h
 *  
 *
 *  Created by Andreas Vox on 21.09.06.
 *  Copyright 2006 under GPL2. All rights reserved.
 *
 */



#ifndef SAXFILTER_H
#define SAXFILTER_H

#include "saxhandler.h"

class SaxFilter : public SaxHandler {
public:
    SaxFilter(SaxHandler* delegate)        : m_delegate(delegate)  {}
    void setDelegate(SaxHandler* delegate) { m_delegate = delegate; }
    SaxHandler* delegate()                 { return m_delegate; }
    virtual void beginDoc();
    virtual void endDoc();
    virtual void begin(const Xml_string& tag, Xml_attr attr);
    virtual void end(const Xml_string& tag);
    virtual void chars(const Xml_string& text);
private:
    SaxHandler* m_delegate;
};


class KeepOpen : public SaxFilter {
public:
    KeepOpen(SaxHandler* delegate);
    virtual void begin(const Xml_string& tag, Xml_attr attr);
    virtual void end(const Xml_string& tag);
    Xml_string openTag();
private:
    int m_level;
    Xml_string m_tag;
};


class RenameElem : public SaxFilter {
public:
    RenameElem(SaxHandler* delegate, const Xml_string& oldname, const Xml_string& newname);
    RenameElem(SaxHandler* delegate, const Xml_string& newname);
    virtual void begin(const Xml_string& tag, Xml_attr attr);
    virtual void end(const Xml_string& tag);
private:
    int m_level;
    Xml_string m_old;
    Xml_string m_new;
};


class AddAttributes : public SaxFilter {
public:
    AddAttributes(SaxHandler* delegate, Xml_attr add);
    virtual void begin(const Xml_string& tag, Xml_attr attr);
private:
    bool m_oneshot;
    Xml_attr m_attributes;
};


class SaxHandlerNull : public SaxHandler {
public:
    SaxHandlerNull() {}
    virtual void beginDoc() {}
    virtual void endDoc() {}
    virtual void begin(const Xml_string& tag, Xml_attr attr) {}
    virtual void end(const Xml_string& tag) {}
    virtual void chars(const Xml_string& text) {}
};


#endif