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/*
* This file is part of the DOM implementation for KDE.
*
* Copyright (C) 2000 Peter Kelly (pmk@post.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef _XML_Tokenizer_h_
#define _XML_Tokenizer_h_
#include <qxml.h>
#include <qptrlist.h>
#include <qptrstack.h>
#include <qvaluestack.h>
#include <qobject.h>
#include "misc/loader_client.h"
#include "misc/stringit.h"
class KHTMLView;
namespace khtml {
class CachedObject;
class CachedScript;
}
namespace DOM {
class DocumentImpl;
class NodeImpl;
class HTMLScriptElementImpl;
class DocumentImpl;
class HTMLScriptElementImpl;
}
namespace khtml {
class XMLHandler : public QXmlDefaultHandler
{
public:
XMLHandler(DOM::DocumentImpl *_doc, KHTMLView *_view);
virtual ~XMLHandler();
// return the error protocol if parsing failed
QString errorProtocol();
// overloaded handler functions
bool startDocument();
bool startElement(const QString& namespaceURI, const QString& localName, const QString& qName, const QXmlAttributes& atts);
bool endElement(const QString& namespaceURI, const QString& localName, const QString& qName);
bool startCDATA();
bool endCDATA();
bool characters(const QString& ch);
bool comment(const QString & ch);
bool processingInstruction(const QString &target, const QString &data);
// namespace handling, to workaround problem in QXML where some attributes
// do not get the namespace resolved properly
bool startPrefixMapping(const QString& prefix, const QString& uri);
bool endPrefixMapping(const QString& prefix);
void fixUpNSURI(QString& uri, const QString& qname);
QMap<QString, QValueStack<QString> > namespaceInfo;
// from QXmlDeclHandler
bool attributeDecl(const QString &eName, const QString &aName, const QString &type, const QString &valueDefault, const QString &value);
bool externalEntityDecl(const QString &name, const QString &publicId, const QString &systemId);
bool internalEntityDecl(const QString &name, const QString &value);
// from QXmlDTDHandler
bool notationDecl(const QString &name, const QString &publicId, const QString &systemId);
bool unparsedEntityDecl(const QString &name, const QString &publicId, const QString &systemId, const QString ¬ationName);
bool enterText();
void exitText();
QString errorString();
bool fatalError( const QXmlParseException& exception );
unsigned long errorLine;
unsigned long errorCol;
private:
void pushNode( DOM::NodeImpl *node );
DOM::NodeImpl *popNode();
DOM::NodeImpl *currentNode() const;
private:
QString errorProt;
DOM::DocumentImpl *m_doc;
KHTMLView *m_view;
QPtrStack<DOM::NodeImpl> m_nodes;
DOM::NodeImpl *m_rootNode;
enum State {
StateInit,
StateDocument,
StateQuote,
StateLine,
StateHeading,
StateP
};
State state;
};
class Tokenizer : public QObject
{
Q_OBJECT
public:
virtual void begin() = 0;
// script output must be prepended, while new data
// received during executing a script must be appended, hence the
// extra bool to be able to distinguish between both cases. document.write()
// always uses false, while khtmlpart uses true
virtual void write( const TokenizerString &str, bool appendData) = 0;
virtual void end() = 0;
virtual void finish() = 0;
virtual void setOnHold(bool /*_onHold*/) {}
virtual bool isWaitingForScripts() const = 0;
virtual bool isExecutingScript() const = 0;
virtual void abort() {}
virtual void setAutoClose(bool b=true) = 0;
signals:
void finishedParsing();
};
class XMLIncrementalSource : public QXmlInputSource
{
public:
XMLIncrementalSource();
virtual void fetchData();
virtual QChar next();
virtual void setData( const QString& str );
virtual void setData( const QByteArray& data );
virtual QString data();
void appendXML( const QString& str );
void setFinished( bool );
private:
QString m_data;
uint m_pos;
const QChar *m_unicode;
bool m_finished;
};
class XMLTokenizer : public Tokenizer, public khtml::CachedObjectClient
{
public:
XMLTokenizer(DOM::DocumentImpl *, KHTMLView * = 0);
virtual ~XMLTokenizer();
virtual void begin();
virtual void write( const TokenizerString &str, bool );
virtual void end();
virtual void finish();
virtual void setAutoClose(bool b=true) { qWarning("XMLTokenizer::setAutoClose: stub."); (void)b; }
// from CachedObjectClient
void notifyFinished(khtml::CachedObject *finishedObj);
virtual bool isWaitingForScripts() const;
virtual bool isExecutingScript() const { return false; }
protected:
DOM::DocumentImpl *m_doc;
KHTMLView *m_view;
void executeScripts();
void addScripts(DOM::NodeImpl *n);
QPtrList<DOM::HTMLScriptElementImpl> m_scripts;
QPtrListIterator<DOM::HTMLScriptElementImpl> *m_scriptsIt;
khtml::CachedScript *m_cachedScript;
XMLHandler m_handler;
QXmlSimpleReader m_reader;
XMLIncrementalSource m_source;
bool m_noErrors;
};
} // end namespace
#endif
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