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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 <tqxml.h>
+#include <tqptrlist.h>
+#include <tqptrstack.h>
+#include <tqvaluestack.h>
+#include <tqobject.h>
+#include "misc/loader_client.h"
+#include "misc/stringit.h"
+
+class KHTMLView;
+
+namespace tdehtml {
+ class CachedObject;
+ class CachedScript;
+}
+
+namespace DOM {
+ class DocumentImpl;
+ class NodeImpl;
+ class HTMLScriptElementImpl;
+ class DocumentImpl;
+ class HTMLScriptElementImpl;
+}
+
+namespace tdehtml {
+
+class XMLHandler : public TQXmlDefaultHandler
+{
+public:
+ XMLHandler(DOM::DocumentImpl *_doc, KHTMLView *_view);
+ virtual ~XMLHandler();
+
+ // return the error protocol if parsing failed
+ TQString errorProtocol();
+
+ // overloaded handler functions
+ bool startDocument();
+ bool startElement(const TQString& namespaceURI, const TQString& localName, const TQString& qName, const TQXmlAttributes& atts);
+ bool endElement(const TQString& namespaceURI, const TQString& localName, const TQString& qName);
+ bool startCDATA();
+ bool endCDATA();
+ bool characters(const TQString& ch);
+ bool comment(const TQString & ch);
+ bool processingInstruction(const TQString &target, const TQString &data);
+
+ // namespace handling, to workaround problem in QXML where some attributes
+ // do not get the namespace resolved properly
+ bool startPrefixMapping(const TQString& prefix, const TQString& uri);
+ bool endPrefixMapping(const TQString& prefix);
+ void fixUpNSURI(TQString& uri, const TQString& qname);
+ TQMap<TQString, TQValueStack<TQString> > namespaceInfo;
+
+
+ // from QXmlDeclHandler
+ bool attributeDecl(const TQString &eName, const TQString &aName, const TQString &type, const TQString &valueDefault, const TQString &value);
+ bool externalEntityDecl(const TQString &name, const TQString &publicId, const TQString &systemId);
+ bool internalEntityDecl(const TQString &name, const TQString &value);
+
+ // from QXmlDTDHandler
+ bool notationDecl(const TQString &name, const TQString &publicId, const TQString &systemId);
+ bool unparsedEntityDecl(const TQString &name, const TQString &publicId, const TQString &systemId, const TQString &notationName);
+
+ bool enterText();
+ void exitText();
+
+ TQString errorString();
+
+ bool fatalError( const TQXmlParseException& exception );
+
+ unsigned long errorLine;
+ unsigned long errorCol;
+
+private:
+ void pushNode( DOM::NodeImpl *node );
+ DOM::NodeImpl *popNode();
+ DOM::NodeImpl *currentNode() const;
+private:
+ TQString errorProt;
+ DOM::DocumentImpl *m_doc;
+ KHTMLView *m_view;
+ TQPtrStack<DOM::NodeImpl> m_nodes;
+ DOM::NodeImpl *m_rootNode;
+
+ enum State {
+ StateInit,
+ StateDocument,
+ StateQuote,
+ StateLine,
+ StateHeading,
+ StateP
+ };
+ State state;
+};
+
+class Tokenizer : public TQObject
+{
+ 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 tdehtmlpart 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 TQXmlInputSource
+{
+public:
+ XMLIncrementalSource();
+ virtual void fetchData();
+ virtual TQChar next();
+ virtual void setData( const TQString& str );
+ virtual void setData( const TQByteArray& data );
+ virtual TQString data();
+
+ void appendXML( const TQString& str );
+ void setFinished( bool );
+
+private:
+ TQString m_data;
+ uint m_pos;
+ const TQChar *m_unicode;
+ bool m_finished;
+};
+
+class XMLTokenizer : public Tokenizer, public tdehtml::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) { tqWarning("XMLTokenizer::setAutoClose: stub."); (void)b; }
+
+ // from CachedObjectClient
+ void notifyFinished(tdehtml::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);
+
+ TQPtrList<DOM::HTMLScriptElementImpl> m_scripts;
+ TQPtrListIterator<DOM::HTMLScriptElementImpl> *m_scriptsIt;
+ tdehtml::CachedScript *m_cachedScript;
+
+ XMLHandler m_handler;
+ TQXmlSimpleReader m_reader;
+ XMLIncrementalSource m_source;
+ bool m_noErrors;
+};
+
+} // end namespace
+
+#endif