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/*
* Copyright (C) 2000 Peter Kelly (pmk@post.com)
* Copyright (C) 2005, 2006, 2007 Apple Inc. All rights reserved.
* Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
* Copyright (C) 2007 Trolltech ASA
*
* 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 XMLTokenizer_h
#define XMLTokenizer_h
#include "CachedResourceClient.h"
#include "SegmentedString.h"
#include "StringHash.h"
#include "Tokenizer.h"
#include <wtf/HashMap.h>
#include <wtf/OwnPtr.h>
#if PLATFORM(QT)
#if !ENABLE(XSLT)
#define USE_QXMLSTREAM
#endif
#endif
#ifndef USE_QXMLSTREAM
#include <libxml/tree.h>
#include <libxml/xmlstring.h>
#else
#include <QtXml/qxmlstream.h>
#endif
namespace WebCore {
class Node;
class CachedScript;
class DocLoader;
class DocumentFragment;
class Document;
class Element;
class FrameView;
class PendingCallbacks;
class XMLTokenizer : public Tokenizer, public CachedResourceClient {
public:
XMLTokenizer(Document*, FrameView* = 0);
XMLTokenizer(DocumentFragment*, Element*);
~XMLTokenizer();
enum ErrorType { warning, nonFatal, fatal };
// from Tokenizer
virtual bool write(const SegmentedString&, bool appendData);
virtual void finish();
virtual bool isWaitingForScripts() const;
virtual void stopParsing();
void end();
void pauseParsing();
void resumeParsing();
void setIsXHTMLDocument(bool isXHTML) { m_isXHTMLDocument = isXHTML; }
bool isXHTMLDocument() const { return m_isXHTMLDocument; }
// from CachedResourceClient
virtual void notifyFinished(CachedResource* finishedObj);
#ifndef USE_QXMLSTREAM
friend bool parseXMLDocumentFragment(const String& chunk, DocumentFragment* fragment, Element* parent);
// callbacks from parser SAX
void error(ErrorType, const char* message, va_list args) WTF_ATTRIBUTE_PRINTF(3, 0);
void startElementNs(const xmlChar* xmlLocalName, const xmlChar* xmlPrefix, const xmlChar* xmlURI, int nb_namespaces,
const xmlChar** namespaces, int nb_attributes, int nb_defaulted, const xmlChar** libxmlAttributes);
void endElementNs();
void characters(const xmlChar* s, int len);
void processingInstruction(const xmlChar* target, const xmlChar* data);
void cdataBlock(const xmlChar* s, int len);
void comment(const xmlChar* s);
void startDocument(const xmlChar* version, const xmlChar* encoding, int standalone);
void internalSubset(const xmlChar* name, const xmlChar* externalID, const xmlChar* systemID);
void endDocument();
#else
void parse();
void startDocument();
void parseStartElement();
void parseEndElement();
void parseCharacters();
void parseProcessingInstruction();
void parseCdata();
void parseComment();
void endDocument();
void parseDtd();
bool hasError() const;
#endif
void handleError(ErrorType type, const char* m, int lineNumber, int columnNumber);
virtual bool wellFormed() const { return !m_sawError; }
int lineNumber() const;
int columnNumber() const;
private:
void initializeParserContext(const char* chunk = 0);
void setCurrentNode(Node*);
void insertErrorMessageBlock();
bool enterText();
void exitText();
Document* m_doc;
FrameView* m_view;
String m_originalSourceForTransform;
#ifdef USE_QXMLSTREAM
QXmlStreamReader m_stream;
bool m_wroteText;
#else
xmlParserCtxtPtr m_context;
#endif
Node* m_currentNode;
bool m_currentNodeIsReferenced;
bool m_sawError;
bool m_sawXSLTransform;
bool m_sawFirstElement;
bool m_isXHTMLDocument;
bool m_parserPaused;
bool m_requestingScript;
bool m_finishCalled;
int m_errorCount;
int m_lastErrorLine;
int m_lastErrorColumn;
String m_errorMessages;
CachedScript* m_pendingScript;
RefPtr<Element> m_scriptElement;
int m_scriptStartLine;
bool m_parsingFragment;
String m_defaultNamespaceURI;
typedef HashMap<String, String> PrefixForNamespaceMap;
PrefixForNamespaceMap m_prefixToNamespaceMap;
#ifndef USE_QXMLSTREAM
OwnPtr<PendingCallbacks> m_pendingCallbacks;
Vector<xmlChar> m_bufferedText;
#endif
SegmentedString m_pendingSrc;
};
#if ENABLE(XSLT)
void* xmlDocPtrForString(DocLoader*, const String& source, const String& url);
void setLoaderForLibXMLCallbacks(DocLoader*);
#endif
HashMap<String, String> parseAttributes(const String&, bool& attrsOK);
bool parseXMLDocumentFragment(const String&, DocumentFragment*, Element* parent = 0);
} // namespace WebCore
#endif // XMLTokenizer_h
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