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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) 2008 Nokia Corporation and/or its subsidiary(-ies)
* Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.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 XMLTokenizer_h
#define XMLTokenizer_h
#include "CachedResourceClient.h"
#include "CachedResourceHandle.h"
#include "SegmentedString.h"
#include "StringHash.h"
#include "Tokenizer.h"
#include <wtf/HashMap.h>
#include <wtf/OwnPtr.h>
#if USE(QXMLSTREAM)
#include <qxmlstream.h>
#else
#include <libxml/tree.h>
#include <libxml/xmlstring.h>
#endif
namespace WebCore {
class Node;
class CachedScript;
class DocLoader;
class DocumentFragment;
class Document;
class Element;
class FrameView;
class PendingCallbacks;
class ScriptElement;
#if !USE(QXMLSTREAM)
class XMLParserContext : public RefCounted<XMLParserContext> {
public:
static PassRefPtr<XMLParserContext> createMemoryParser(xmlSAXHandlerPtr, void*, const char*);
static PassRefPtr<XMLParserContext> createStringParser(xmlSAXHandlerPtr, void*);
~XMLParserContext();
xmlParserCtxtPtr context() const { return m_context; }
private:
XMLParserContext(xmlParserCtxtPtr context)
: m_context(context)
{
}
xmlParserCtxtPtr m_context;
};
#endif
class XMLTokenizer : public Tokenizer, public CachedResourceClient {
public:
XMLTokenizer(Document*, FrameView* = 0);
XMLTokenizer(DocumentFragment*, Element*);
~XMLTokenizer();
enum ErrorType { warning, nonFatal, fatal };
// from Tokenizer
virtual void 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; }
#if ENABLE(XHTMLMP)
void setIsXHTMLMPDocument(bool isXHTML) { m_isXHTMLMPDocument = isXHTML; }
bool isXHTMLMPDocument() const { return m_isXHTMLMPDocument; }
#endif
#if ENABLE(WML)
bool isWMLDocument() const;
#endif
// from CachedResourceClient
virtual void notifyFinished(CachedResource* finishedObj);
void handleError(ErrorType type, const char* m, int lineNumber, int columnNumber);
virtual bool wellFormed() const { return !m_sawError; }
int lineNumber() const;
int columnNumber() const;
#if USE(QXMLSTREAM)
private:
void parse();
void startDocument();
void parseStartElement();
void parseEndElement();
void parseCharacters();
void parseProcessingInstruction();
void parseCdata();
void parseComment();
void endDocument();
void parseDtd();
bool hasError() const;
#else
public:
// 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();
#endif
private:
friend bool parseXMLDocumentFragment(const String& chunk, DocumentFragment* fragment, Element* parent);
void initializeParserContext(const char* chunk = 0);
void pushCurrentNode(Node*);
void popCurrentNode();
void clearCurrentNodeStack();
void insertErrorMessageBlock();
bool enterText();
void exitText();
void doWrite(const String&);
void doEnd();
Document* m_doc;
FrameView* m_view;
String m_originalSourceForTransform;
#if USE(QXMLSTREAM)
QXmlStreamReader m_stream;
bool m_wroteText;
#else
xmlParserCtxtPtr context() const { return m_context ? m_context->context() : 0; };
RefPtr<XMLParserContext> m_context;
OwnPtr<PendingCallbacks> m_pendingCallbacks;
Vector<xmlChar> m_bufferedText;
#endif
Node* m_currentNode;
Vector<Node*> m_currentNodeStack;
bool m_sawError;
bool m_sawXSLTransform;
bool m_sawFirstElement;
bool m_isXHTMLDocument;
#if ENABLE(XHTMLMP)
bool m_isXHTMLMPDocument;
bool m_hasDocTypeDeclaration;
#endif
bool m_parserPaused;
bool m_requestingScript;
bool m_finishCalled;
int m_errorCount;
int m_lastErrorLine;
int m_lastErrorColumn;
String m_errorMessages;
CachedResourceHandle<CachedScript> m_pendingScript;
RefPtr<Element> m_scriptElement;
int m_scriptStartLine;
bool m_parsingFragment;
String m_defaultNamespaceURI;
typedef HashMap<String, String> PrefixForNamespaceMap;
PrefixForNamespaceMap m_prefixToNamespaceMap;
SegmentedString m_pendingSrc;
};
#if ENABLE(XSLT)
void* xmlDocPtrForString(DocLoader*, const String& source, const String& url);
#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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