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/*
This file is part of the KDE libraries
Copyright (C) 1997 Martin Jones (mjones@kde.org)
(C) 1997 Torben Weis (weis@kde.org)
(C) 1998 Waldo Bastian (bastian@kde.org)
(C) 1999 Lars Knoll (knoll@kde.org)
(C) 2003 Apple Computer, Inc.
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.
*/
//----------------------------------------------------------------------------
//
// KDE HTML Widget -- HTML Parser
#ifndef HTMLPARSER_H
#define HTMLPARSER_H
// 0 all
// 1 domtree + rendertree + styleForElement, no layouting
// 2 domtree only
#define SPEED_DEBUG 0
#ifdef SPEED_DEBUG
#include <qdatetime.h>
#endif
#include "dom/dom_string.h"
#include "xml/dom_nodeimpl.h"
#include "html/html_documentimpl.h"
class KHTMLView;
class HTMLStackElem;
namespace DOM {
class HTMLDocumentImpl;
class DocumentImpl;
class HTMLElementImpl;
class NodeImpl;
class HTMLFormElementImpl;
class HTMLMapElementImpl;
class HTMLHeadElementImpl;
class DocumentFragmentImpl;
}
namespace khtml {
class Token;
/**
* The parser for html. It receives a stream of tokens from the HTMLTokenizer, and
* builds up the Document structure form it.
*/
class KHTMLParser
{
public:
KHTMLParser( KHTMLView *w, DOM::DocumentImpl *i );
KHTMLParser( DOM::DocumentFragmentImpl *frag, DOM::DocumentImpl *doc );
virtual ~KHTMLParser();
/**
* parses one token delivered by the tokenizer
*/
void parseToken(Token *_t);
/**
* resets the parser
*/
void reset();
bool skipMode() const { return (discard_until != 0); }
bool noSpaces() const { return (inSelect || !m_inline || !inBody); }
bool selectMode() const { return inSelect; }
DOM::HTMLDocumentImpl *doc() const { return static_cast<DOM::HTMLDocumentImpl *>(document); }
DOM::DocumentImpl *docPtr() const { return document; }
protected:
KHTMLView *HTMLWidget;
DOM::DocumentImpl *document;
/*
* generate an element from the token
*/
DOM::NodeImpl *getElement(Token *);
void processCloseTag(Token *);
bool insertNode(DOM::NodeImpl *n, bool flat = false);
/*
* The currently active element (the one new elements will be added to)
*/
void setCurrent( DOM::NodeImpl* newNode )
{
if ( newNode ) newNode->ref();
if ( current ) current->deref();
current = newNode;
}
private:
DOM::NodeImpl *current;
HTMLStackElem *blockStack;
void pushBlock( int _id, int _level);
void popBlock( int _id );
void popOneBlock(bool delBlock = true);
void popInlineBlocks();
void freeBlock( void);
void createHead();
bool isResidualStyleTag(int _id);
bool isAffectedByResidualStyle(int _id);
void handleResidualStyleCloseTagAcrossBlocks(HTMLStackElem* elem);
void reopenResidualStyleTags(HTMLStackElem* elem, DOM::NodeImpl* malformedTableParent);
ushort *forbiddenTag;
/*
* currently active form
*/
DOM::HTMLFormElementImpl *form;
/*
* current map
*/
DOM::HTMLMapElementImpl *map;
/*
* the head element. Needed for crappy html which defines <base> after </head>
*/
DOM::HTMLHeadElementImpl *head;
/*
* a possible <isindex> element in the head. Compatibility hack for
* html from the stone age
*/
DOM::NodeImpl *isindex;
DOM::NodeImpl *handleIsindex( Token *t );
/*
* inserts the stupid isIndex element.
*/
void startBody();
bool inBody;
bool haveContent;
bool haveBody;
bool haveFrameSet;
bool haveTitle;
bool m_inline;
bool end;
bool inSelect;
/*
* tells the parser to discard all tags, until it reaches the one specified
*/
int discard_until;
bool headLoaded;
int inStrayTableContent;
#if SPEED_DEBUG > 0
QTime qt;
#endif
};
} // namespace khtml
#endif // HTMLPARSER_H
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