d400676ed4
24112 - Fixed the orderding of THEAD, TBODY, and TFOOT 24673 - Fixed the crash my not letting P to contain TABLE ( per spec. ) 18308 - Ignoring newlines above BODY 18928 - Fixed by forcing a BODY to open, irrespective of FRAMESET document, if 'text' is present in the document. 23791 - Made ; in entities optional. 24006 - Fixed by setting the alternate end-comment to be '>'. 24275 - Buffering newlines/whitespace only when it's absolutely necessary. 24462 - Fixed by making NOBR a block closure. 21917 - Being careful about ignoring newlines/whitespace for body content. r=rickg 24204 - Fixed by opening up BODY for INPUT ( quirks ) Also did a minor change in CNavDTD::DidBuildModel(); r=pollmann git-svn-id: svn://10.0.0.236/trunk@58870 18797224-902f-48f8-a5cc-f745e15eee43
3530 lines
108 KiB
C++
3530 lines
108 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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//#define ENABLE_CRC
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//#define RICKG_DEBUG
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#define ENABLE_RESIDUALSTYLE
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#ifdef RICKG_DEBUG
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#include <fstream.h>
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#endif
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#include "nsDebug.h"
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#include "nsIDTDDebug.h"
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#include "CNavDTD.h"
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#include "nsHTMLTokens.h"
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#include "nsCRT.h"
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#include "nsParser.h"
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#include "nsIParser.h"
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#include "nsIHTMLContentSink.h"
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#include "nsScanner.h"
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#include "nsIDTDDebug.h"
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#include "prenv.h" //this is here for debug reasons...
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#include "prtypes.h" //this is here for debug reasons...
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#include "prio.h"
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#include "plstr.h"
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#include "nsDTDUtils.h"
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#include "nsTagHandler.h"
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#include "nsHTMLTokenizer.h"
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#include "nsTime.h"
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#include "nsIElementObserver.h"
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#include "nsViewSourceHTML.h"
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#include "nsParserNode.h"
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#include "nsHTMLEntities.h"
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#include "nsLinebreakConverter.h"
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#ifdef XP_PC
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#include <direct.h> //this is here for debug reasons...
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#endif
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#include "prmem.h"
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static NS_DEFINE_IID(kIHTMLContentSinkIID, NS_IHTML_CONTENT_SINK_IID);
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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static NS_DEFINE_IID(kIDTDIID, NS_IDTD_IID);
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static NS_DEFINE_IID(kClassIID, NS_INAVHTML_DTD_IID);
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static const char* kNullToken = "Error: Null token given";
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static const char* kInvalidTagStackPos = "Error: invalid tag stack position";
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static char* kVerificationDir = "c:/temp";
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#ifdef ENABLE_CRC
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static char gShowCRC;
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#endif
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#include "nsElementTable.h"
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#ifdef MOZ_PERF_METRICS
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# define START_TIMER() \
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if(mParser) MOZ_TIMER_START(mParser->mParseTime); \
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if(mParser) MOZ_TIMER_START(mParser->mDTDTime);
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# define STOP_TIMER() \
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if(mParser) MOZ_TIMER_STOP(mParser->mParseTime); \
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if(mParser) MOZ_TIMER_STOP(mParser->mDTDTime);
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#else
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# define STOP_TIMER()
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# define START_TIMER()
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#endif
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/***************************************************************
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This the ITagHandler deque deallocator, needed by the
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CTagHandlerRegister
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***************************************************************/
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class CTagHandlerDeallocator: public nsDequeFunctor{
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public:
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virtual void* operator()(void* aObject) {
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nsITagHandler* tagHandler = (nsITagHandler*)aObject;
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delete tagHandler;
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return 0;
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}
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};
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/***************************************************************
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This funtor will be called for each item in the TagHandler que to
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check for a Tag name, and setting the current TagHandler when it is reached
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***************************************************************/
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class CTagFinder: public nsDequeFunctor{
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public:
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CTagFinder(){}
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void Initialize(const nsString &aTagName) {mTagName = aTagName;}
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virtual ~CTagFinder() {
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}
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virtual void* operator()(void* aObject) {
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nsString* theString = ((nsITagHandler*)aObject)->GetString();
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if( theString->Equals(mTagName)){
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return aObject;
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}
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return(0);
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}
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nsAutoString mTagName;
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};
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/***************************************************************
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This a an object that will keep track of TagHandlers in
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the DTD. Uses a factory pattern
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***************************************************************/
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class CTagHandlerRegister {
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public:
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CTagHandlerRegister();
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~CTagHandlerRegister();
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void RegisterTagHandler(nsITagHandler *aTagHandler){
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mTagHandlerDeque.Push(aTagHandler);
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}
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nsITagHandler* FindTagHandler(const nsString &aTagName){
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nsITagHandler* foundHandler = nsnull;
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mTagFinder.Initialize(aTagName);
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mTagHandlerDeque.Begin();
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foundHandler = (nsITagHandler*) mTagHandlerDeque.FirstThat(mTagFinder);
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return foundHandler;
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}
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nsDeque mTagHandlerDeque;
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CTagFinder mTagFinder;
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};
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MOZ_DECL_CTOR_COUNTER(CTagHandlerRegister);
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CTagHandlerRegister::CTagHandlerRegister() : mTagHandlerDeque(new CTagHandlerDeallocator())
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{
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MOZ_COUNT_CTOR(CTagHandlerRegister);
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}
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CTagHandlerRegister::~CTagHandlerRegister()
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{
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MOZ_COUNT_DTOR(CTagHandlerRegister);
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}
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/************************************************************************
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The CTagHandlerRegister for a CNavDTD.
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This is where special taghanders for our tags can be managed and called from
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Note: This can also be attached to some object so it can be refcounted
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and destroyed if you want this to go away when not imbedded.
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************************************************************************/
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//CTagHandlerRegister gTagHandlerRegister;
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/************************************************************************
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And now for the main class -- CNavDTD...
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************************************************************************/
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/**
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* This method gets called as part of our COM-like interfaces.
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* Its purpose is to create an interface to parser object
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* of some type.
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*
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* @update gess 4/8/98
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* @param nsIID id of object to discover
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* @param aInstancePtr ptr to newly discovered interface
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* @return NS_xxx result code
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*/
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nsresult CNavDTD::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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{
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if (NULL == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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}
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if(aIID.Equals(kISupportsIID)) { //do IUnknown...
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*aInstancePtr = (nsIDTD*)(this);
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}
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else if(aIID.Equals(kIDTDIID)) { //do IParser base class...
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*aInstancePtr = (nsIDTD*)(this);
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}
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else if(aIID.Equals(kClassIID)) { //do this class...
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*aInstancePtr = (CNavDTD*)(this);
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}
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else {
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*aInstancePtr=0;
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return NS_NOINTERFACE;
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}
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NS_ADDREF_THIS();
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return NS_OK;
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}
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NS_IMPL_ADDREF(CNavDTD)
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NS_IMPL_RELEASE(CNavDTD)
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/**
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* Default constructor
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*
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* @update gess 4/9/98
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* @param
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* @return
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*/
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CNavDTD::CNavDTD() : nsIDTD(), mMisplacedContent(0), mSkippedContent(0), mSharedNodes(0), mScratch("") {
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NS_INIT_REFCNT();
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mSink = 0;
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mParser=0;
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mDTDDebug=0;
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mLineNumber=1;
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mHasOpenBody=PR_FALSE;
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mHasOpenHead=0;
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mHasOpenForm=PR_FALSE;
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mHasOpenMap=PR_FALSE;
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mHeadContext=new nsDTDContext();
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mBodyContext=new nsDTDContext();
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mFormContext=0;
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mMapContext=0;
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mTempContext=0;
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mTokenizer=0;
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mComputedCRC32=0;
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mExpectedCRC32=0;
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mDTDState=NS_OK;
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mStyleHandlingEnabled=PR_TRUE;
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if(!gHTMLElements) {
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InitializeElementTable();
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}
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#ifdef RICKG_DEBUG
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//DebugDumpContainmentRules2(*this,"c:/temp/DTDRules.new","New CNavDTD Containment Rules");
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nsHTMLElement::DebugDumpContainment("c:/temp/contain.new","ElementTable Rules");
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nsHTMLElement::DebugDumpMembership("c:/temp/membership.out");
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nsHTMLElement::DebugDumpContainType("c:/temp/ctnrules.out");
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#endif
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#ifdef NS_DEBUG
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gNodeCount=0;
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#endif
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}
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/**
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* This method creates a new parser node. It tries to get one from
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* the recycle list before allocating a new one.
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* @update gess1/8/99
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* @param
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* @return valid node*
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*/
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nsCParserNode* CNavDTD::CreateNode(void) {
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nsCParserNode* result=0;
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if(0<mSharedNodes.GetSize()) {
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result=(nsCParserNode*)mSharedNodes.Pop();
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}
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else{
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result=new nsCParserNode();
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#ifdef NS_DEBUG
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#if 1
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gNodeCount++;
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#endif
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#endif
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}
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return result;
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}
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/**
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* This method recycles a given node
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* @update gess1/8/99
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* @param
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* @return
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*/
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void CNavDTD::RecycleNode(nsCParserNode* aNode) {
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if(aNode && (!aNode->mUseCount)) {
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if(aNode->mToken) {
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if(!aNode->mToken->mUseCount) {
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mTokenRecycler->RecycleToken(aNode->mToken);
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}
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}
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CToken* theToken=0;
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while((theToken=(CToken*)aNode->PopAttributeToken())){
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if(!theToken->mUseCount) {
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mTokenRecycler->RecycleToken(theToken);
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}
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}
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mSharedNodes.Push(aNode);
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}
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}
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/**
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* This method recycles the nodes on a nodestack.
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* NOTE: Unlike recycleNode(), we force the usecount
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* to 0 of all nodes, then force them to recycle.
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* @update gess1/8/99
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* @param aNodeStack
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* @return nothing
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*/
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void CNavDTD::RecycleNodes(nsEntryStack *aNodeStack) {
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if(aNodeStack) {
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PRInt32 theCount=aNodeStack->mCount;
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PRInt32 theIndex=0;
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for(theIndex=0;theIndex<theCount;theIndex++) {
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nsCParserNode* theNode=(nsCParserNode*)aNodeStack->NodeAt(theIndex);
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if(theNode) {
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theNode->mUseCount=0;
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if(theNode->mToken) {
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theNode->mToken->mUseCount=0;
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mTokenRecycler->RecycleToken(theNode->mToken);
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}
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CToken* theToken=0;
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while((theToken=(CToken*)theNode->PopAttributeToken())){
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theNode->mToken->mUseCount=0;
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mTokenRecycler->RecycleToken(theToken);
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}
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mSharedNodes.Push(theNode);
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} //if
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} //while
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} //if
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|
}
|
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|
|
/**
|
|
*
|
|
* @update gess1/8/99
|
|
* @param
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* @return
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|
*/
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const nsIID& CNavDTD::GetMostDerivedIID(void)const {
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return kClassIID;
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}
|
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|
|
/**
|
|
* Default destructor
|
|
*
|
|
* @update gess 4/9/98
|
|
* @param
|
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* @return
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|
*/
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CNavDTD::~CNavDTD(){
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delete mHeadContext;
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delete mBodyContext;
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NS_IF_RELEASE(mTokenizer);
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if(mTempContext)
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delete mTempContext;
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nsCParserNode* theNode=0;
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#ifdef NS_DEBUG
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#if 0
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PRInt32 count=gNodeCount-mSharedNodes.GetSize();
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if(count) {
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printf("%i of %i nodes leaked!\n",count,gNodeCount);
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}
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#endif
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#endif
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|
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#if 1
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while((theNode=(nsCParserNode*)mSharedNodes.Pop())){
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delete theNode;
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}
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#endif
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|
|
#ifdef NS_DEBUG
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|
gNodeCount=0;
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|
#endif
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|
|
NS_IF_RELEASE(mSink);
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NS_IF_RELEASE(mDTDDebug);
|
|
}
|
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|
|
|
|
/**
|
|
* Call this method if you want the DTD to construct a fresh
|
|
* instance of itself.
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|
* @update gess7/23/98
|
|
* @param
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|
* @return
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|
*/
|
|
nsresult CNavDTD::CreateNewInstance(nsIDTD** aInstancePtrResult){
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return NS_NewNavHTMLDTD(aInstancePtrResult);
|
|
}
|
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|
|
/**
|
|
* Called by the parser to initiate dtd verification of the
|
|
* internal context stack.
|
|
* @update gess 7/23/98
|
|
* @param
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|
* @return
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|
*/
|
|
PRBool CNavDTD::Verify(nsString& aURLRef,nsIParser* aParser){
|
|
PRBool result=PR_TRUE;
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|
|
/*
|
|
* Disable some DTD debugging code in the parser that
|
|
* breaks on some compilers because of some broken
|
|
* streams code in prstrm.cpp.
|
|
*/
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|
#if !defined(MOZ_DISABLE_DTD_DEBUG)
|
|
if(!mDTDDebug){
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nsresult rval = NS_NewDTDDebug(&mDTDDebug);
|
|
if (NS_OK != rval) {
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|
fputs("Cannot create parser debugger.\n", stdout);
|
|
result=-PR_FALSE;
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|
}
|
|
else mDTDDebug->SetVerificationDirectory(kVerificationDir);
|
|
}
|
|
#endif
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|
|
|
if(mDTDDebug) {
|
|
// mDTDDebug->Verify(this,aParser,mBodyContext->GetCount(),mBodyContext->mStack,aURLRef);
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|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method is called to determine if the given DTD can parse
|
|
* a document in a given source-type.
|
|
* NOTE: Parsing always assumes that the end result will involve
|
|
* storing the result in the main content model.
|
|
* @update gess6/24/98
|
|
* @param
|
|
* @return TRUE if this DTD can satisfy the request; FALSE otherwise.
|
|
*/
|
|
eAutoDetectResult CNavDTD::CanParse(nsString& aContentType, nsString& aCommand, nsString& aBuffer, PRInt32 aVersion) {
|
|
eAutoDetectResult result=eUnknownDetect;
|
|
|
|
if(!aCommand.Equals(kViewSourceCommand)) {
|
|
if(PR_TRUE==aContentType.Equals(kHTMLTextContentType)) {
|
|
result=ePrimaryDetect;
|
|
}
|
|
else {
|
|
//otherwise, look into the buffer to see if you recognize anything...
|
|
PRBool theBufHasXML=PR_FALSE;
|
|
if(BufferContainsHTML(aBuffer,theBufHasXML)){
|
|
result = eValidDetect ;
|
|
if(0==aContentType.Length()) {
|
|
aContentType=kHTMLTextContentType;
|
|
result = (theBufHasXML) ? eValidDetect : ePrimaryDetect;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
* @update gess5/18/98
|
|
* @param
|
|
* @return
|
|
*/
|
|
nsresult CNavDTD::WillBuildModel(nsString& aFilename,
|
|
PRBool aNotifySink,nsString& aSourceType,eParseMode aParseMode,
|
|
nsString& aCommand,nsIContentSink* aSink){
|
|
nsresult result=NS_OK;
|
|
|
|
mFilename=aFilename;
|
|
mHasOpenBody=PR_FALSE;
|
|
mHadBody=PR_FALSE;
|
|
mHadFrameset=PR_FALSE;
|
|
mLineNumber=1;
|
|
mHasOpenScript=PR_FALSE;
|
|
mParseMode=aParseMode;
|
|
mStyleHandlingEnabled=(eParseMode_quirks==mParseMode);
|
|
|
|
if((aNotifySink) && (aSink)) {
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::WillBuildModel(), this=%p\n", this));
|
|
|
|
mTokenRecycler=0;
|
|
mStyleHandlingEnabled=PR_TRUE;
|
|
|
|
if(aSink && (!mSink)) {
|
|
result=aSink->QueryInterface(kIHTMLContentSinkIID, (void **)&mSink);
|
|
}
|
|
|
|
if(result==NS_OK) {
|
|
result = aSink->WillBuildModel();
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::WillBuildModel(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
mSkipTarget=eHTMLTag_unknown;
|
|
mComputedCRC32=0;
|
|
mExpectedCRC32=0;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
/**
|
|
* This is called when it's time to read as many tokens from the tokenizer
|
|
* as you can. Not all tokens may make sense, so you may not be able to
|
|
* read them all (until more come in later).
|
|
*
|
|
* @update gess5/18/98
|
|
* @param aParser is the parser object that's driving this process
|
|
* @return error code (almost always NS_OK)
|
|
*/
|
|
nsresult CNavDTD::BuildModel(nsIParser* aParser,nsITokenizer* aTokenizer,nsITokenObserver* anObserver,nsIContentSink* aSink) {
|
|
nsresult result=NS_OK;
|
|
|
|
if(aTokenizer) {
|
|
nsITokenizer* oldTokenizer=mTokenizer;
|
|
mTokenizer=aTokenizer;
|
|
mParser=(nsParser*)aParser;
|
|
|
|
if(mTokenizer) {
|
|
|
|
mTokenRecycler=(CTokenRecycler*)mTokenizer->GetTokenRecycler();
|
|
if(mSink) {
|
|
|
|
|
|
|
|
if(!mBodyContext->GetCount()) {
|
|
//if the content model is empty, then begin by opening <html>...
|
|
CStartToken *theToken=(CStartToken*)mTokenRecycler->CreateTokenOfType(eToken_start,eHTMLTag_html,"html");
|
|
HandleStartToken(theToken); //this token should get pushed on the context stack, don't recycle it.
|
|
}
|
|
|
|
while(NS_SUCCEEDED(result)){
|
|
|
|
#if 0
|
|
int n=aTokenizer->GetCount();
|
|
if(n>50) n=50;
|
|
for(int i=0;i<n;i++){
|
|
CToken* theToken=aTokenizer->GetTokenAt(i);
|
|
printf("\nToken[%i],%p",i,theToken);
|
|
}
|
|
printf("\n");
|
|
#endif
|
|
|
|
if(mDTDState!=NS_ERROR_HTMLPARSER_STOPPARSING) {
|
|
CToken* theToken=mTokenizer->PopToken();
|
|
if(theToken) {
|
|
result=HandleToken(theToken,aParser);
|
|
}
|
|
else break;
|
|
}
|
|
else {
|
|
result=mDTDState;
|
|
break;
|
|
}
|
|
}//while
|
|
mTokenizer=oldTokenizer;
|
|
}
|
|
}
|
|
}
|
|
else result=NS_ERROR_HTMLPARSER_BADTOKENIZER;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @update gess5/18/98
|
|
* @param
|
|
* @return
|
|
*/
|
|
nsresult CNavDTD::DidBuildModel(nsresult anErrorCode,PRBool aNotifySink,nsIParser* aParser,nsIContentSink* aSink){
|
|
nsresult result=NS_OK;
|
|
|
|
if(aSink) {
|
|
|
|
if((NS_OK==anErrorCode) && (!mHadBody) && (!mHadFrameset)) {
|
|
|
|
mSkipTarget=eHTMLTag_unknown; //clear this in case we were searching earlier.
|
|
|
|
CStartToken *theToken=(CStartToken*)mTokenRecycler->CreateTokenOfType(eToken_start,eHTMLTag_body,"body");
|
|
mTokenizer->PushTokenFront(theToken); //this token should get pushed on the context stack, don't recycle it
|
|
result=BuildModel(aParser,mTokenizer,0,aSink);
|
|
}
|
|
|
|
if(aParser && (NS_OK==result)){
|
|
if(aNotifySink){
|
|
if((NS_OK==anErrorCode) && (mBodyContext->GetCount()>0)) {
|
|
if(mSkipTarget) {
|
|
CHTMLToken* theEndToken=nsnull;
|
|
theEndToken=(CHTMLToken*)mTokenRecycler->CreateTokenOfType(eToken_end,mSkipTarget);
|
|
if(theEndToken) {
|
|
result=HandleToken(theEndToken,mParser);
|
|
}
|
|
}
|
|
if(result==NS_OK) {
|
|
eHTMLTags theTarget;
|
|
|
|
//now let's disable style handling to save time when closing remaining stack members...
|
|
mStyleHandlingEnabled=PR_FALSE;
|
|
|
|
while(mBodyContext->GetCount() > 0) {
|
|
theTarget = mBodyContext->Last();
|
|
CloseContainersTo(theTarget,PR_FALSE);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
//If you're here, then an error occured, but we still have nodes on the stack.
|
|
//At a minimum, we should grab the nodes and recycle them.
|
|
//Just to be correct, we'll also recycle the nodes.
|
|
|
|
while(mBodyContext->GetCount() > 0) {
|
|
|
|
nsEntryStack *theChildStyles=0;
|
|
nsCParserNode* theNode=(nsCParserNode*)mBodyContext->Pop(theChildStyles);
|
|
theNode->mUseCount=0;
|
|
RecycleNode(theNode);
|
|
if(theChildStyles) {
|
|
delete theChildStyles;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::DidBuildModel(), this=%p\n", this));
|
|
|
|
#ifdef ENABLE_CRC
|
|
|
|
//let's only grab this state once!
|
|
if(!gShowCRC) {
|
|
gShowCRC=1; //this only indicates we'll not initialize again.
|
|
char* theEnvString = PR_GetEnv("RICKG_CRC");
|
|
if(theEnvString){
|
|
if(('1'==theEnvString[0]) || ('Y'==theEnvString[0]) || ('y'==theEnvString[0])){
|
|
gShowCRC=2; //this indicates that the CRC flag was found in the environment.
|
|
}
|
|
}
|
|
}
|
|
|
|
if(2==gShowCRC) {
|
|
if(mComputedCRC32!=mExpectedCRC32) {
|
|
if(mExpectedCRC32!=0) {
|
|
printf("CRC Computed: %u Expected CRC: %u\n,",mComputedCRC32,mExpectedCRC32);
|
|
result = aSink->DidBuildModel(2);
|
|
}
|
|
else {
|
|
printf("Computed CRC: %u.\n",mComputedCRC32);
|
|
result = aSink->DidBuildModel(3);
|
|
}
|
|
}
|
|
else result = aSink->DidBuildModel(0);
|
|
}
|
|
else result=aSink->DidBuildModel(0);
|
|
#endif
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::DidBuildModel(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
//Now make sure the misplaced content list is empty,
|
|
//by forcefully recycling any tokens we might find there.
|
|
|
|
CToken* theToken=0;
|
|
while((theToken=(CToken*)mMisplacedContent.Pop())) {
|
|
mTokenRecycler->RecycleToken(theToken);
|
|
}
|
|
|
|
if(mDTDDebug) {
|
|
mDTDDebug->DumpVectorRecord();
|
|
}
|
|
}
|
|
} //if aparser
|
|
|
|
//No matter what, you need to call did build model.
|
|
result=aSink->DidBuildModel(0);
|
|
|
|
} //if asink
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This big dispatch method is used to route token handler calls to the right place.
|
|
* What's wrong with it? This table, and the dispatch methods themselves need to be
|
|
* moved over to the delegate. Ah, so much to do...
|
|
*
|
|
* @update gess 12/1/99
|
|
* @param aToken
|
|
* @param aParser
|
|
* @return
|
|
*/
|
|
nsresult CNavDTD::HandleToken(CToken* aToken,nsIParser* aParser){
|
|
nsresult result=NS_OK;
|
|
|
|
if(aToken) {
|
|
CHTMLToken* theToken= (CHTMLToken*)(aToken);
|
|
eHTMLTokenTypes theType=eHTMLTokenTypes(theToken->GetTokenType());
|
|
eHTMLTags theTag=(eHTMLTags)theToken->GetTypeID();
|
|
PRBool execSkipContent=PR_FALSE;
|
|
|
|
theToken->mUseCount=0; //assume every token coming into this system needs recycling.
|
|
|
|
/* ---------------------------------------------------------------------------------
|
|
To understand this little piece of code, you need to look below too.
|
|
In essence, this code caches "skipped content" until we find a given skiptarget.
|
|
Once we find the skiptarget, we take all skipped content up to that point and
|
|
coallate it. Then we push those tokens back onto the tokenizer deque.
|
|
---------------------------------------------------------------------------------
|
|
*/
|
|
|
|
// printf("token: %p\n",aToken);
|
|
|
|
if(mSkipTarget){ //handle a preexisting target...
|
|
if((theTag==mSkipTarget) && (eToken_end==theType)){
|
|
mSkipTarget=eHTMLTag_unknown; //stop skipping.
|
|
//mTokenizer->PushTokenFront(aToken); //push the end token...
|
|
execSkipContent=PR_TRUE;
|
|
mTokenRecycler->RecycleToken(aToken);
|
|
theToken=(CHTMLToken*)mSkippedContent.PopFront();
|
|
theType=eToken_start;
|
|
}
|
|
else {
|
|
mSkippedContent.Push(theToken);
|
|
return result;
|
|
}
|
|
}
|
|
|
|
/* ---------------------------------------------------------------------------------
|
|
This section of code is used to "move" misplaced content from one location in
|
|
our document model to another. (Consider what would happen if we found a <P> tag
|
|
and text in the head.) To move content, we throw it onto the misplacedcontent
|
|
deque until we can deal with it.
|
|
---------------------------------------------------------------------------------
|
|
*/
|
|
if(!execSkipContent) {
|
|
|
|
switch(theTag) {
|
|
case eHTMLTag_html:
|
|
case eHTMLTag_comment:
|
|
case eHTMLTag_script:
|
|
case eHTMLTag_markupDecl:
|
|
case eHTMLTag_userdefined:
|
|
break; //simply pass these through to token handler without further ado...
|
|
case eHTMLTag_newline:
|
|
case eHTMLTag_whitespace:
|
|
if(mMisplacedContent.GetSize()<=0) // fix for bugs 17017,18308,23765, and 24275
|
|
break; // Push only when it's absolutely necessary.
|
|
default:
|
|
if(!gHTMLElements[eHTMLTag_html].SectionContains(theTag,PR_FALSE)) {
|
|
if((!mHadBody) && (!mHadFrameset)){
|
|
|
|
//For bug examples from this code, see bugs: 18928, 20989.
|
|
|
|
//At this point we know the body/frameset aren't open.
|
|
//If the child belongs in the head, then handle it (which may open the head);
|
|
//otherwise, push it onto the misplaced stack.
|
|
|
|
PRBool theChildBelongsInHead=gHTMLElements[eHTMLTag_head].IsChildOfHead(theTag);
|
|
if(!theChildBelongsInHead) {
|
|
|
|
//If you're here then we found a child of the body that was out of place.
|
|
//We're going to move it to the body by storing it temporarily on the misplaced stack.
|
|
//However, in quirks mode, a few tags request, ambiguosly, for a BODY. - Bugs 18928, 24204.-
|
|
mMisplacedContent.Push(aToken);
|
|
aToken->mUseCount++;
|
|
if(mParseMode==eParseMode_quirks && (gHTMLElements[theTag].HasSpecialProperty(kRequiresBody))) {
|
|
CToken* theBodyToken=(CToken*)mTokenRecycler->CreateTokenOfType(eToken_start,eHTMLTag_body,"body");
|
|
result=HandleToken(theBodyToken,aParser);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
} //if
|
|
} //if
|
|
}//switch
|
|
|
|
} //if
|
|
|
|
if(theToken){
|
|
//Before dealing with the token normally, we need to deal with skip targets
|
|
if((!execSkipContent) &&
|
|
(theType!=eToken_end) &&
|
|
(eHTMLTag_unknown==mSkipTarget) &&
|
|
(gHTMLElements[theTag].mSkipTarget)){ //create a new target
|
|
// Ref: Bug# 19977
|
|
// For optimization, determine if the skipped content is well
|
|
// placed. This would avoid unnecessary node creation and
|
|
// extra string append. BTW, watch out in handling the head
|
|
// children ( especially the TITLE tag).
|
|
if(!gHTMLElements[eHTMLTag_head].IsChildOfHead(theTag)) {
|
|
eHTMLTags theParentTag = mBodyContext->Last();
|
|
PRBool theParentContains = -1;
|
|
if(CanOmit(theParentTag,theTag,theParentContains)) {
|
|
result=HandleOmittedTag(theToken,theTag,theParentTag,nsnull);
|
|
return result;
|
|
}
|
|
}
|
|
mSkipTarget=gHTMLElements[theTag].mSkipTarget;
|
|
mSkippedContent.Push(theToken);
|
|
}
|
|
else {
|
|
|
|
mParser=(nsParser*)aParser;
|
|
|
|
switch(theType) {
|
|
case eToken_text:
|
|
case eToken_start:
|
|
case eToken_whitespace:
|
|
case eToken_newline:
|
|
result=HandleStartToken(theToken); break;
|
|
|
|
case eToken_end:
|
|
result=HandleEndToken(theToken); break;
|
|
|
|
case eToken_cdatasection:
|
|
case eToken_comment:
|
|
result=HandleCommentToken(theToken); break;
|
|
|
|
case eToken_entity:
|
|
result=HandleEntityToken(theToken); break;
|
|
|
|
case eToken_attribute:
|
|
result=HandleAttributeToken(theToken); break;
|
|
|
|
case eToken_style:
|
|
result=HandleStyleToken(theToken); break;
|
|
|
|
case eToken_instruction:
|
|
result=HandleProcessingInstructionToken(theToken); break;
|
|
|
|
case eToken_doctypeDecl:
|
|
result=HandleDocTypeDeclToken(theToken); break;
|
|
|
|
default:
|
|
break;
|
|
}//switch
|
|
|
|
|
|
if(NS_SUCCEEDED(result) || (NS_ERROR_HTMLPARSER_BLOCK==result)) {
|
|
if(0>=theToken->mUseCount)
|
|
mTokenRecycler->RecycleToken(theToken);
|
|
}
|
|
else if(result==NS_ERROR_HTMLPARSER_STOPPARSING)
|
|
mDTDState=result;
|
|
else return NS_OK;
|
|
|
|
/*************************************************************/
|
|
// CAUTION: Here we are forgetting to push the ATTRIBUTE Tokens.
|
|
// So, before you uncomment this part please make sure
|
|
// that the attribute tokens are also accounted for.
|
|
|
|
//else if(NS_ERROR_HTMLPARSER_MISPLACED!=result)
|
|
// mTokenizer->PushTokenFront(theToken);
|
|
//else result=NS_OK;
|
|
/***************************************************************/
|
|
#if 0
|
|
if (mDTDDebug) {
|
|
mDTDDebug->Verify(this, mParser, mBodyContext->GetCount(), mBodyContext->mStack, mFilename);
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
}//if
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method causes all tokens to be dispatched to the given tag handler.
|
|
*
|
|
* @update gess 3/25/98
|
|
* @param aHandler -- object to receive subsequent tokens...
|
|
* @return error code (usually 0)
|
|
*/
|
|
nsresult CNavDTD::CaptureTokenPump(nsITagHandler* aHandler) {
|
|
nsresult result=NS_OK;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method releases the token-pump capture obtained in CaptureTokenPump()
|
|
*
|
|
* @update gess 3/25/98
|
|
* @param aHandler -- object that received tokens...
|
|
* @return error code (usually 0)
|
|
*/
|
|
nsresult CNavDTD::ReleaseTokenPump(nsITagHandler* aHandler){
|
|
nsresult result=NS_OK;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This gets called after we've handled a given start tag.
|
|
* It's a generic hook to let us to post processing.
|
|
* @param aToken contains the tag in question
|
|
* @param aChildTag is the tag itself.
|
|
* @return status
|
|
*/
|
|
nsresult CNavDTD::DidHandleStartTag(nsCParserNode& aNode,eHTMLTags aChildTag){
|
|
nsresult result=NS_OK;
|
|
|
|
switch(aChildTag){
|
|
|
|
case eHTMLTag_pre:
|
|
case eHTMLTag_listing:
|
|
{
|
|
CToken* theNextToken=mTokenizer->PeekToken();
|
|
if(theNextToken) {
|
|
eHTMLTokenTypes theType=eHTMLTokenTypes(theNextToken->GetTokenType());
|
|
if(eToken_newline==theType){
|
|
mLineNumber++;
|
|
mTokenizer->PopToken(); //skip 1st newline inside PRE and LISTING
|
|
}//if
|
|
}//if
|
|
}
|
|
break;
|
|
|
|
case eHTMLTag_plaintext:
|
|
case eHTMLTag_xmp:
|
|
//grab the skipped content and dump it out as text...
|
|
{
|
|
STOP_TIMER()
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::DidHandleStartTag(), this=%p\n", this));
|
|
const nsString& theText=aNode.GetSkippedContent();
|
|
if(0<theText.Length()) {
|
|
CViewSourceHTML::WriteText(theText,*mSink,PR_TRUE,PR_FALSE);
|
|
}
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::DidHandleStartTag(), this=%p\n", this));
|
|
START_TIMER()
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}//switch
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Determine whether the given tag is open anywhere
|
|
* in our context stack.
|
|
*
|
|
* @update gess 4/2/98
|
|
* @param eHTMLTags tag to be searched for in stack
|
|
* @return topmost index of tag on stack
|
|
*/
|
|
PRInt32 CNavDTD::LastOf(eHTMLTags aTagSet[],PRInt32 aCount) const {
|
|
int theIndex=0;
|
|
for(theIndex=mBodyContext->GetCount()-1;theIndex>=0;theIndex--){
|
|
if(FindTagInSet((*mBodyContext)[theIndex],aTagSet,aCount)) {
|
|
return theIndex;
|
|
}
|
|
}
|
|
return kNotFound;
|
|
}
|
|
|
|
/**
|
|
* Call this to find the index of a given child, or (if not found)
|
|
* the index of its nearest synonym.
|
|
*
|
|
* @update gess 3/25/98
|
|
* @param aTagStack -- list of open tags
|
|
* @param aTag -- tag to test for containership
|
|
* @return index of kNotFound
|
|
*/
|
|
static
|
|
PRInt32 GetIndexOfChildOrSynonym(nsDTDContext& aContext,eHTMLTags aChildTag) {
|
|
PRInt32 theChildIndex=aContext.LastOf(aChildTag);
|
|
if(kNotFound==theChildIndex) {
|
|
TagList* theSynTags=gHTMLElements[aChildTag].GetSynonymousTags(); //get the list of tags that THIS tag can close
|
|
if(theSynTags) {
|
|
theChildIndex=LastOf(aContext,*theSynTags);
|
|
}
|
|
else{
|
|
PRInt32 theGroup=nsHTMLElement::GetSynonymousGroups(aChildTag);
|
|
if(theGroup) {
|
|
theChildIndex=aContext.GetCount();
|
|
while(-1<--theChildIndex) {
|
|
eHTMLTags theTag=aContext[theChildIndex];
|
|
if(gHTMLElements[theTag].IsMemberOf(theGroup)) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return theChildIndex;
|
|
}
|
|
|
|
/**
|
|
* This method is called to determine whether or not the child
|
|
* tag is happy being OPENED in the context of the current
|
|
* tag stack. This is only called if the current parent thinks
|
|
* it wants to contain the given childtag.
|
|
*
|
|
* @param aChildTag -- tag enum of child to be opened
|
|
* @param aTagStack -- ref to current tag stack in DTD.
|
|
* @return PR_TRUE if child agrees to be opened here.
|
|
*/
|
|
static
|
|
PRBool CanBeContained(eHTMLTags aChildTag,nsDTDContext& aContext) {
|
|
|
|
/* # Interesting test cases: Result:
|
|
* 1. <UL><LI>..<B>..<LI> inner <LI> closes outer <LI>
|
|
* 2. <CENTER><DL><DT><A><CENTER> allow nested <CENTER>
|
|
* 3. <TABLE><TR><TD><TABLE>... allow nested <TABLE>
|
|
* 4. <FRAMESET> ... <FRAMESET>
|
|
*/
|
|
|
|
//Note: This method is going away. First we need to get the elementtable to do closures right, and
|
|
// therefore we must get residual style handling to work.
|
|
|
|
PRBool result=PR_TRUE;
|
|
if(aContext.GetCount()){
|
|
TagList* theRootTags=gHTMLElements[aChildTag].GetRootTags();
|
|
TagList* theSpecialParents=gHTMLElements[aChildTag].GetSpecialParents();
|
|
if(theRootTags) {
|
|
PRInt32 theRootIndex=LastOf(aContext,*theRootTags);
|
|
PRInt32 theSPIndex=(theSpecialParents) ? LastOf(aContext,*theSpecialParents) : kNotFound;
|
|
PRInt32 theChildIndex=GetIndexOfChildOrSynonym(aContext,aChildTag);
|
|
PRInt32 theBaseIndex=(theRootIndex>theSPIndex) ? theRootIndex : theSPIndex;
|
|
|
|
if((theBaseIndex==theChildIndex) && (gHTMLElements[aChildTag].CanContainSelf()))
|
|
result=PR_TRUE;
|
|
else result=PRBool(theBaseIndex>theChildIndex);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
enum eProcessRule {eIgnore,eTest};
|
|
|
|
/**
|
|
* This method gets called when a start token has been
|
|
* encountered in the parse process. If the current container
|
|
* can contain this tag, then add it. Otherwise, you have
|
|
* two choices: 1) create an implicit container for this tag
|
|
* to be stored in
|
|
* 2) close the top container, and add this to
|
|
* whatever container ends up on top.
|
|
*
|
|
* @update gess 3/25/98
|
|
* @param aToken -- next (start) token to be handled
|
|
* @param aNode -- CParserNode representing this start token
|
|
* @return PR_TRUE if all went well; PR_FALSE if error occured
|
|
*/
|
|
nsresult CNavDTD::HandleDefaultStartToken(CToken* aToken,eHTMLTags aChildTag,nsIParserNode *aNode) {
|
|
NS_PRECONDITION(0!=aToken,kNullToken);
|
|
|
|
nsresult result=NS_OK;
|
|
|
|
PRBool theChildAgrees=PR_TRUE;
|
|
PRInt32 theIndex=mBodyContext->GetCount();
|
|
PRBool theChildIsContainer=nsHTMLElement::IsContainer(aChildTag);
|
|
PRBool theParentContains=-1;
|
|
|
|
do {
|
|
|
|
eHTMLTags theParentTag=mBodyContext->TagAt(--theIndex);
|
|
theParentContains=CanContain(theParentTag,aChildTag); //precompute containment, and pass it to CanOmit()...
|
|
|
|
if(CanOmit(theParentTag,aChildTag,theParentContains)) {
|
|
result=HandleOmittedTag(aToken,aChildTag,theParentTag,aNode);
|
|
return result;
|
|
}
|
|
|
|
eProcessRule theRule=eTest;
|
|
switch(theRule){
|
|
case eTest:
|
|
theChildAgrees=PR_TRUE;
|
|
if(theParentContains) {
|
|
|
|
eHTMLTags theAncestor=gHTMLElements[aChildTag].mExcludingAncestor;
|
|
if(eHTMLTag_unknown!=theAncestor){
|
|
theChildAgrees=!HasOpenContainer(theAncestor);
|
|
}
|
|
|
|
if(theChildAgrees){
|
|
theAncestor=gHTMLElements[aChildTag].mRequiredAncestor;
|
|
if(eHTMLTag_unknown!=theAncestor){
|
|
theChildAgrees=HasOpenContainer(theAncestor);
|
|
}
|
|
}
|
|
|
|
if(theChildAgrees && theChildIsContainer) {
|
|
if ((theParentTag!=aChildTag) && (!nsHTMLElement::IsResidualStyleTag(aChildTag))) {
|
|
|
|
PRInt32 theChildIndex=GetIndexOfChildOrSynonym(*mBodyContext,aChildTag);
|
|
|
|
if((kNotFound<theChildIndex) && (theChildIndex<theIndex)) {
|
|
|
|
/*-------------------------------------------------------------------------------------
|
|
Here's a tricky case from bug 22596: <h5><li><h5>
|
|
|
|
How do we know that the 2nd <h5> should close the <LI> rather than nest inside the <LI>?
|
|
(Afterall, the <h5> is a legal child of the <LI>).
|
|
|
|
The way you know is that there is no root between the two, so the <h5> binds more
|
|
tightly to the 1st <h5> than to the <LI>.
|
|
-------------------------------------------------------------------------------------*/
|
|
|
|
theChildAgrees=CanBeContained(aChildTag,*mBodyContext);
|
|
} //if
|
|
} //if
|
|
} //if
|
|
} //if parentcontains
|
|
|
|
if(!(theParentContains && theChildAgrees)) {
|
|
if (!CanPropagate(theParentTag,aChildTag,theParentContains)) {
|
|
if(theChildIsContainer || (!theParentContains)){
|
|
if((!theChildAgrees) && (!gHTMLElements[aChildTag].CanAutoCloseTag(*mBodyContext,aChildTag)) ||
|
|
(mBodyContext->mContextTopIndex > 0 && theIndex <= mBodyContext->mContextTopIndex)) {
|
|
// Closing the tags above might cause non-compatible results.
|
|
// Ex. <TABLE><TR><TD><TBODY>Text</TD></TR></TABLE>.
|
|
// In the example above <TBODY> is badly misplaced, but
|
|
// we should not attempt to close the tags above it,
|
|
// The safest thing to do is to discard this tag.
|
|
return result;
|
|
}
|
|
CloseContainersTo(theIndex,aChildTag,PR_TRUE);
|
|
}//if
|
|
else break;
|
|
}//if
|
|
else {
|
|
CreateContextStackFor(aChildTag);
|
|
theIndex=mBodyContext->GetCount();
|
|
}
|
|
}//if
|
|
break;
|
|
case eIgnore:
|
|
default:
|
|
break;
|
|
|
|
}//switch
|
|
} while(!(theParentContains && theChildAgrees));
|
|
|
|
if(theChildIsContainer){
|
|
result=OpenContainer(aNode,aChildTag,PR_TRUE);
|
|
}
|
|
else { //we're writing a leaf...
|
|
result=AddLeaf(aNode);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
#ifdef RICKG_DEBUG
|
|
void WriteTokenToLog(CToken* aToken) {
|
|
|
|
static nsFileSpec fileSpec("c:\\temp\\tokenlog.html");
|
|
static nsOutputFileStream outputStream(fileSpec);
|
|
aToken->DebugDumpSource(outputStream); //write token without close bracket...
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* This gets called before we've handled a given start tag.
|
|
* It's a generic hook to let us do pre processing.
|
|
* @param aToken contains the tag in question
|
|
* @param aChildTag is the tag itself.
|
|
* @param aNode is the node (tag) with associated attributes.
|
|
* @return TRUE if tag processing should continue; FALSE if the tag has been handled.
|
|
*/
|
|
nsresult CNavDTD::WillHandleStartTag(CToken* aToken,eHTMLTags aTag,nsCParserNode& aNode){
|
|
nsresult result=NS_OK;
|
|
PRInt32 theAttrCount = aNode.GetAttributeCount();
|
|
|
|
//first let's see if there's some skipped content to deal with...
|
|
if(gHTMLElements[aTag].mSkipTarget) {
|
|
result=CollectSkippedContent(aNode,theAttrCount);
|
|
}
|
|
|
|
STOP_TIMER()
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::WillHandleStartTag(), this=%p\n", this));
|
|
|
|
if(mParser) {
|
|
|
|
CObserverService* theService=mParser->GetObserverService();
|
|
if(theService) {
|
|
CParserContext* pc=mParser->PeekContext();
|
|
void* theDocID=(pc)? pc->mKey:0;
|
|
|
|
result=theService->Notify(aTag,aNode,(PRUint32)theDocID,kHTMLTextContentType,mParser);
|
|
}
|
|
}
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::WillHandleStartTag(), this=%p\n", this));
|
|
START_TIMER()
|
|
|
|
if(NS_SUCCEEDED(result)) {
|
|
|
|
#ifdef ENABLE_CRC
|
|
|
|
STOP_TIMER()
|
|
|
|
if(eHTMLTag_meta==aTag) {
|
|
PRInt32 theCount=aNode.GetAttributeCount();
|
|
if(1<theCount){
|
|
|
|
const nsString& theKey=aNode.GetKeyAt(0);
|
|
if(theKey.EqualsIgnoreCase("NAME")) {
|
|
const nsString& theValue1=aNode.GetValueAt(0);
|
|
if(theValue1.EqualsIgnoreCase("\"CRC\"")) {
|
|
const nsString& theKey2=aNode.GetKeyAt(1);
|
|
if(theKey2.EqualsIgnoreCase("CONTENT")) {
|
|
const nsString& theValue2=aNode.GetValueAt(1);
|
|
PRInt32 err=0;
|
|
mExpectedCRC32=theValue2.ToInteger(&err);
|
|
} //if
|
|
} //if
|
|
} //else
|
|
|
|
} //if
|
|
}//if
|
|
|
|
START_TIMER()
|
|
|
|
#endif
|
|
|
|
if(NS_OK==result) {
|
|
result=gHTMLElements[aTag].HasSpecialProperty(kDiscardTag) ? 1 : NS_OK;
|
|
}
|
|
|
|
PRBool isHeadChild=gHTMLElements[eHTMLTag_head].IsChildOfHead(aTag);
|
|
|
|
//this code is here to make sure the head is closed before we deal
|
|
//with any tags that don't belong in the head.
|
|
if(NS_OK==result) {
|
|
if(mHasOpenHead){
|
|
static eHTMLTags skip2[]={eHTMLTag_newline,eHTMLTag_whitespace};
|
|
if(!FindTagInSet(aTag,skip2,sizeof(skip2)/sizeof(eHTMLTag_unknown))){
|
|
if(!isHeadChild){
|
|
|
|
//because this code calls CloseHead() directly, stack-based token/nodes are ok.
|
|
CEndToken theToken(eHTMLTag_head);
|
|
nsCParserNode theNode(&theToken,mLineNumber);
|
|
result=CloseHead(&theNode);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void PushMisplacedAttributes(nsIParserNode& aNode,nsDeque& aDeque,PRInt32& aCount) {
|
|
if(aCount > 0) {
|
|
CToken* theAttrToken=nsnull;
|
|
nsCParserNode* theAttrNode = (nsCParserNode*)&aNode;
|
|
if(theAttrNode) {
|
|
while(aCount){
|
|
theAttrToken=theAttrNode->PopAttributeToken();
|
|
if(theAttrToken) {
|
|
aDeque.Push(theAttrToken);
|
|
theAttrToken->mUseCount=0;
|
|
}
|
|
aCount--;
|
|
}//while
|
|
}//if
|
|
}//if
|
|
}
|
|
|
|
/**
|
|
* This method gets called when a start token has been encountered that the parent
|
|
* wants to omit.
|
|
*
|
|
* @update gess 3/25/98
|
|
* @param aToken -- next (start) token to be handled
|
|
* @param aChildTag -- id of the child in question
|
|
* @param aParent -- id of the parent in question
|
|
* @param aNode -- CParserNode representing this start token
|
|
* @return PR_TRUE if all went well; PR_FALSE if error occured
|
|
*/
|
|
nsresult CNavDTD::HandleOmittedTag(CToken* aToken,eHTMLTags aChildTag,eHTMLTags aParent,nsIParserNode* aNode) {
|
|
NS_PRECONDITION(mBodyContext != nsnull,"need a context to work with");
|
|
|
|
nsresult result=NS_OK;
|
|
|
|
//The trick here is to see if the parent can contain the child, but prefers not to.
|
|
//Only if the parent CANNOT contain the child should we look to see if it's potentially a child
|
|
//of another section. If it is, the cache it for later.
|
|
// 1. Get the root node for the child. See if the ultimate node is the BODY, FRAMESET, HEAD or HTML
|
|
PRInt32 theTagCount = mBodyContext->GetCount();
|
|
CToken* theToken = aToken;
|
|
|
|
if(aToken) {
|
|
// Note: The node for a misplaced skipped content is not yet created ( for optimization ) and hence
|
|
// it's impossible to collect attributes. So, treat the token as though it doesn't have attibutes.
|
|
PRInt32 attrCount = (gHTMLElements[aChildTag].mSkipTarget)? 0:aToken->GetAttributeCount();
|
|
if((gHTMLElements[aParent].HasSpecialProperty(kBadContentWatch)) &&
|
|
(!nsHTMLElement::IsWhitespaceTag(aChildTag))) {
|
|
eHTMLTags theTag=eHTMLTag_unknown;
|
|
PRInt32 theIndex=kNotFound;
|
|
|
|
while(theTagCount > 0) {
|
|
theTag = mBodyContext->TagAt(--theTagCount);
|
|
if(!gHTMLElements[theTag].HasSpecialProperty(kBadContentWatch)) {
|
|
if(!gHTMLElements[theTag].CanContain(aChildTag)) break;
|
|
theIndex = theTagCount;
|
|
break;
|
|
}
|
|
}
|
|
|
|
PRBool done=PR_FALSE;
|
|
if(theIndex>kNotFound) {
|
|
// Avoid TD and TH getting into misplaced content stack
|
|
// because they are legal table elements. -- Ref: Bug# 20797
|
|
static eHTMLTags gLegalElements[]={eHTMLTag_td,eHTMLTag_th};
|
|
while(!done){
|
|
mMisplacedContent.Push(theToken);
|
|
theToken->mUseCount++;
|
|
|
|
// If the token is attributed then save those attributes too.
|
|
if(attrCount > 0) PushMisplacedAttributes(*aNode,mMisplacedContent,attrCount);
|
|
|
|
theToken=mTokenizer->PeekToken();
|
|
|
|
if(theToken) {
|
|
theToken->mUseCount=0;
|
|
theTag=(eHTMLTags)theToken->GetTypeID();
|
|
if(!nsHTMLElement::IsWhitespaceTag(theTag) && theTag!=eHTMLTag_unknown) {
|
|
if((gHTMLElements[theTag].mSkipTarget && theToken->GetTokenType() != eToken_end) ||
|
|
(FindTagInSet(theTag,gLegalElements,sizeof(gLegalElements)/sizeof(theTag))) ||
|
|
(gHTMLElements[theTag].HasSpecialProperty(kBadContentWatch)) ||
|
|
(gHTMLElements[aParent].CanContain(theTag))) {
|
|
done=PR_TRUE;
|
|
}
|
|
}
|
|
if(!done) theToken=mTokenizer->PopToken();
|
|
}
|
|
else done=PR_TRUE;
|
|
}//while
|
|
if(result==NS_OK) {
|
|
result=HandleSavedTokens(mBodyContext->mContextTopIndex=theIndex);
|
|
mBodyContext->mContextTopIndex=0;
|
|
}
|
|
}//if
|
|
}//if
|
|
|
|
if((aChildTag!=aParent) && (gHTMLElements[aParent].HasSpecialProperty(kSaveMisplaced))) {
|
|
mMisplacedContent.Push(aToken);
|
|
aToken->mUseCount++;
|
|
// If the token is attributed then save those attributes too.
|
|
if(attrCount > 0) PushMisplacedAttributes(*aNode,mMisplacedContent,attrCount);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method gets called when a start token has been
|
|
* encountered in the parse process. If the current container
|
|
* can contain this tag, then add it. Otherwise, you have
|
|
* two choices: 1) create an implicit container for this tag
|
|
* to be stored in
|
|
* 2) close the top container, and add this to
|
|
* whatever container ends up on top.
|
|
*
|
|
* @update gess 1/04/99
|
|
* @param aToken -- next (start) token to be handled
|
|
* @param aNode -- CParserNode representing this start token
|
|
* @return PR_TRUE if all went well; PR_FALSE if error occured
|
|
*/
|
|
nsresult CNavDTD::HandleStartToken(CToken* aToken) {
|
|
NS_PRECONDITION(0!=aToken,kNullToken);
|
|
|
|
#ifdef RICKG_DEBUG
|
|
WriteTokenToLog(aToken);
|
|
#endif
|
|
|
|
//Begin by gathering up attributes...
|
|
|
|
nsCParserNode* theNode=CreateNode();
|
|
theNode->Init(aToken,mLineNumber,mTokenRecycler);
|
|
|
|
eHTMLTags theChildTag=(eHTMLTags)aToken->GetTypeID();
|
|
PRInt16 attrCount=aToken->GetAttributeCount();
|
|
eHTMLTags theParent=mBodyContext->Last();
|
|
nsresult result=(0==attrCount) ? NS_OK : CollectAttributes(*theNode,theChildTag,attrCount);
|
|
|
|
if(NS_OK==result) {
|
|
result=WillHandleStartTag(aToken,theChildTag,*theNode);
|
|
if(NS_OK==result) {
|
|
PRBool isTokenHandled =PR_FALSE;
|
|
PRBool theHeadIsParent=PR_FALSE;
|
|
|
|
if(nsHTMLElement::IsSectionTag(theChildTag)){
|
|
switch(theChildTag){
|
|
case eHTMLTag_body:
|
|
if(mHasOpenBody) {
|
|
result=OpenContainer(theNode,theChildTag,PR_FALSE);
|
|
isTokenHandled=PR_TRUE;
|
|
}
|
|
break;
|
|
case eHTMLTag_head:
|
|
if(mHadBody || mHadFrameset) {
|
|
result=HandleOmittedTag(aToken,theChildTag,theParent,theNode);
|
|
isTokenHandled=PR_TRUE;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
mLineNumber += aToken->mNewlineCount;
|
|
theHeadIsParent=nsHTMLElement::IsChildOfHead(theChildTag);
|
|
|
|
switch(theChildTag) {
|
|
case eHTMLTag_newline:
|
|
mLineNumber++;
|
|
break;
|
|
|
|
case eHTMLTag_area:
|
|
if(!mHasOpenMap) isTokenHandled=PR_TRUE;
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::HandleStartToken(), this=%p\n", this));
|
|
|
|
if (mHasOpenMap && mSink) {
|
|
result=mSink->AddLeaf(*theNode);
|
|
isTokenHandled=PR_TRUE;
|
|
}
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::HandleStartToken(), this=%p\n", this));
|
|
START_TIMER();
|
|
break;
|
|
|
|
case eHTMLTag_image:
|
|
aToken->SetTypeID(theChildTag=eHTMLTag_img);
|
|
break;
|
|
|
|
//case eHTMLTag_userdefined:
|
|
case eHTMLTag_noscript: //HACK XXX! Throw noscript on the floor for now.
|
|
isTokenHandled=PR_TRUE;
|
|
break;
|
|
|
|
case eHTMLTag_script:
|
|
theHeadIsParent=(!mHasOpenBody);
|
|
mHasOpenScript=PR_TRUE;
|
|
|
|
default:
|
|
break;
|
|
}//switch
|
|
|
|
if(!isTokenHandled) {
|
|
if(theHeadIsParent ||
|
|
(mHasOpenHead && ((eHTMLTag_newline==theChildTag) || (eHTMLTag_whitespace==theChildTag)))) {
|
|
result=AddHeadLeaf(theNode);
|
|
}
|
|
else result=HandleDefaultStartToken(aToken,theChildTag,theNode);
|
|
}
|
|
//now do any post processing necessary on the tag...
|
|
if(NS_OK==result)
|
|
DidHandleStartTag(*theNode,theChildTag);
|
|
}//if
|
|
} //if
|
|
|
|
RecycleNode(theNode);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Call this to see if you have a closeable peer on the stack that
|
|
* is ABOVE one of its root tags.
|
|
*
|
|
* @update gess 4/11/99
|
|
* @param aRootTagList -- list of root tags for aTag
|
|
* @param aTag -- tag to test for containership
|
|
* @return PR_TRUE if given tag can contain other tags
|
|
*/
|
|
static
|
|
PRBool HasCloseablePeerAboveRoot(TagList& aRootTagList,nsDTDContext& aContext,eHTMLTags aTag,PRBool anEndTag) {
|
|
PRInt32 theRootIndex=LastOf(aContext,aRootTagList);
|
|
TagList* theCloseTags=(anEndTag) ? gHTMLElements[aTag].GetAutoCloseEndTags() : gHTMLElements[aTag].GetAutoCloseStartTags();
|
|
PRInt32 theChildIndex=-1;
|
|
|
|
if(theCloseTags) {
|
|
theChildIndex=LastOf(aContext,*theCloseTags);
|
|
}
|
|
else {
|
|
if((anEndTag) || (!gHTMLElements[aTag].CanContainSelf()))
|
|
theChildIndex=aContext.LastOf(aTag);
|
|
}
|
|
// I changed this to theRootIndex<=theChildIndex so to handle this case:
|
|
// <SELECT><OPTGROUP>...</OPTGROUP>
|
|
//
|
|
return PRBool(theRootIndex<=theChildIndex);
|
|
}
|
|
|
|
|
|
/**
|
|
* This method is called to determine whether or not an END tag
|
|
* can be autoclosed. This means that based on the current
|
|
* context, the stack should be closed to the nearest matching
|
|
* tag.
|
|
*
|
|
* @param aTag -- tag enum of child to be tested
|
|
* @return PR_TRUE if autoclosure should occur
|
|
*/
|
|
static
|
|
eHTMLTags FindAutoCloseTargetForEndTag(eHTMLTags aCurrentTag,nsDTDContext& aContext) {
|
|
int theTopIndex=aContext.GetCount();
|
|
eHTMLTags thePrevTag=aContext.Last();
|
|
|
|
if(nsHTMLElement::IsContainer(aCurrentTag)){
|
|
PRInt32 theChildIndex=GetIndexOfChildOrSynonym(aContext,aCurrentTag);
|
|
|
|
if(kNotFound<theChildIndex) {
|
|
if(thePrevTag==aContext[theChildIndex]){
|
|
return aContext[theChildIndex];
|
|
}
|
|
|
|
if(nsHTMLElement::IsBlockCloser(aCurrentTag)) {
|
|
|
|
/*here's what to do:
|
|
Our here is sitting at aChildIndex. There are other tags above it
|
|
on the stack. We have to try to close them out, but we may encounter
|
|
one that can block us. The way to tell is by comparing each tag on
|
|
the stack against our closeTag and rootTag list.
|
|
|
|
For each tag above our hero on the stack, ask 3 questions:
|
|
1. Is it in the closeTag list? If so, the we can skip over it
|
|
2. Is it in the rootTag list? If so, then we're gated by it
|
|
3. Otherwise its non-specified and we simply presume we can close it.
|
|
*/
|
|
|
|
TagList* theCloseTags=gHTMLElements[aCurrentTag].GetAutoCloseEndTags();
|
|
TagList* theRootTags=gHTMLElements[aCurrentTag].GetEndRootTags();
|
|
|
|
if(theCloseTags){
|
|
//at a min., this code is needed for H1..H6
|
|
|
|
while(theChildIndex<--theTopIndex) {
|
|
eHTMLTags theNextTag=aContext[theTopIndex];
|
|
if(PR_FALSE==FindTagInSet(theNextTag,theCloseTags->mTags,theCloseTags->mCount)) {
|
|
if(PR_TRUE==FindTagInSet(theNextTag,theRootTags->mTags,theRootTags->mCount)) {
|
|
return eHTMLTag_unknown; //we encountered a tag in root list so fail (because we're gated).
|
|
}
|
|
//otherwise presume it's something we can simply ignore and continue search...
|
|
}
|
|
//otherwise its in the close list so skip to next tag...
|
|
}
|
|
return aCurrentTag; //if you make it here, we're ungated and found a target!
|
|
}//if
|
|
else if(theRootTags) {
|
|
//since we didn't find any close tags, see if there is an instance of aCurrentTag
|
|
//above the stack from the roottag.
|
|
if(HasCloseablePeerAboveRoot(*theRootTags,aContext,aCurrentTag,PR_TRUE))
|
|
return aCurrentTag;
|
|
else return eHTMLTag_unknown;
|
|
}
|
|
} //if blockcloser
|
|
else{
|
|
//Ok, a much more sensible approach for non-block closers; use the tag group to determine closure:
|
|
//For example: %phrasal closes %phrasal, %fontstyle and %special
|
|
return gHTMLElements[aCurrentTag].GetCloseTargetForEndTag(aContext,theChildIndex);
|
|
}
|
|
}//if
|
|
} //if
|
|
return eHTMLTag_unknown;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param
|
|
* @param
|
|
* @update gess 10/11/99
|
|
* @return nada
|
|
*/
|
|
void StripWSFollowingTag(eHTMLTags aChildTag,nsITokenizer* aTokenizer,nsITokenRecycler* aRecycler, PRInt32& aNewlineCount){
|
|
CToken* theToken= (aTokenizer)? aTokenizer->PeekToken():nsnull;
|
|
|
|
if(aRecycler) {
|
|
while(theToken) {
|
|
eHTMLTokenTypes theType=eHTMLTokenTypes(theToken->GetTokenType());
|
|
switch(theType) {
|
|
case eToken_newline: aNewlineCount++;
|
|
case eToken_whitespace:
|
|
aRecycler->RecycleToken(aTokenizer->PopToken());
|
|
theToken=aTokenizer->PeekToken();
|
|
break;
|
|
default:
|
|
theToken=0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This method gets called when an end token has been
|
|
* encountered in the parse process. If the end tag matches
|
|
* the start tag on the stack, then simply close it. Otherwise,
|
|
* we have a erroneous state condition. This can be because we
|
|
* have a close tag with no prior open tag (user error) or because
|
|
* we screwed something up in the parse process. I'm not sure
|
|
* yet how to tell the difference.
|
|
*
|
|
* @update gess 3/25/98
|
|
* @param aToken -- next (start) token to be handled
|
|
* @return PR_TRUE if all went well; PR_FALSE if error occured
|
|
*/
|
|
nsresult CNavDTD::HandleEndToken(CToken* aToken) {
|
|
NS_PRECONDITION(0!=aToken,kNullToken);
|
|
|
|
nsresult result=NS_OK;
|
|
eHTMLTags theChildTag=(eHTMLTags)aToken->GetTypeID();
|
|
|
|
#ifdef RICKG_DEBUG
|
|
WriteTokenToLog(aToken);
|
|
#endif
|
|
|
|
switch(theChildTag) {
|
|
|
|
case eHTMLTag_script:
|
|
mHasOpenScript=PR_FALSE;
|
|
case eHTMLTag_style:
|
|
case eHTMLTag_link:
|
|
case eHTMLTag_meta:
|
|
case eHTMLTag_textarea:
|
|
case eHTMLTag_title:
|
|
break;
|
|
|
|
case eHTMLTag_head:
|
|
StripWSFollowingTag(theChildTag,mTokenizer,mTokenRecycler,mLineNumber);
|
|
//ok to fall through...
|
|
|
|
case eHTMLTag_form:
|
|
{
|
|
//this is safe because we call close container directly. This node/token is not cached.
|
|
nsCParserNode theNode((CHTMLToken*)aToken,mLineNumber);
|
|
result=CloseContainer(&theNode,theChildTag,PR_FALSE);
|
|
}
|
|
break;
|
|
|
|
case eHTMLTag_br:
|
|
{
|
|
//This is special NAV-QUIRKS code that allows users
|
|
//to use </BR>, even though that isn't a legitimate tag.
|
|
if(eParseMode_quirks==mParseMode) {
|
|
CStartToken theToken(theChildTag); //leave this on the stack; no recycling necessary.
|
|
theToken.mUseCount=1;
|
|
result=HandleStartToken(&theToken);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case eHTMLTag_body:
|
|
case eHTMLTag_html:
|
|
StripWSFollowingTag(theChildTag,mTokenizer,mTokenRecycler,mLineNumber);
|
|
break;
|
|
|
|
default:
|
|
{
|
|
//now check to see if this token should be omitted, or
|
|
//if it's gated from closing by the presence of another tag.
|
|
if(gHTMLElements[theChildTag].CanOmitEndTag()) {
|
|
PopStyle(theChildTag);
|
|
}
|
|
else {
|
|
eHTMLTags theParentTag=mBodyContext->Last();
|
|
if(kNotFound==GetIndexOfChildOrSynonym(*mBodyContext,theChildTag)) {
|
|
|
|
PopStyle(theChildTag);
|
|
|
|
// If the bit kHandleStrayTag is set then we automatically open up a matching
|
|
// start tag ( compatibility ). Currently this bit is set on P tag.
|
|
// This also fixes Bug: 22623
|
|
if(gHTMLElements[theChildTag].HasSpecialProperty(kHandleStrayTag) &&
|
|
mParseMode!=eParseMode_noquirks) {
|
|
// Oh boy!! we found a "stray" tag. Nav4.x and IE introduce line break in
|
|
// such cases. So, let's simulate that effect for compatibility.
|
|
// Ex. <html><body>Hello</P>There</body></html>
|
|
PRBool theParentContains=-1; //set to -1 to force canomit to recompute.
|
|
if(!CanOmit(theParentTag,theChildTag,theParentContains)) {
|
|
mTokenizer->PushTokenFront(aToken); //put this end token back...
|
|
CHTMLToken* theToken = (CHTMLToken*)mTokenRecycler->CreateTokenOfType(eToken_start,theChildTag);
|
|
mTokenizer->PushTokenFront(theToken); //put this new token onto stack...
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
if(result==NS_OK) {
|
|
eHTMLTags theTarget=FindAutoCloseTargetForEndTag(theChildTag,*mBodyContext);
|
|
if(eHTMLTag_unknown!=theTarget) {
|
|
result=CloseContainersTo(theTarget,PR_FALSE);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method will be triggered when the end of a table is
|
|
* encountered. Its primary purpose is to process all the
|
|
* bad-contents pertaining a particular table. The position
|
|
* of the table is the token bank ID.
|
|
*
|
|
* @update harishd 03/24/99
|
|
* @param aTag - This ought to be a table tag
|
|
*
|
|
*/
|
|
nsresult CNavDTD::HandleSavedTokens(PRInt32 anIndex) {
|
|
NS_PRECONDITION(mBodyContext != nsnull && mBodyContext->GetCount() > 0,"invalid context");
|
|
|
|
nsresult result = NS_OK;
|
|
|
|
if(anIndex>kNotFound) {
|
|
PRInt32 theBadTokenCount = mMisplacedContent.GetSize();
|
|
|
|
if(theBadTokenCount > 0) {
|
|
|
|
if(mTempContext==nsnull) mTempContext=new nsDTDContext();
|
|
|
|
CToken* theToken;
|
|
eHTMLTags theTag;
|
|
PRInt32 attrCount;
|
|
PRInt32 theTopIndex = anIndex + 1;
|
|
PRInt32 theTagCount = mBodyContext->GetCount();
|
|
eHTMLTags theParentTag= mBodyContext->TagAt(anIndex);
|
|
|
|
STOP_TIMER()
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::HandleSavedTokensAbove(), this=%p\n", this));
|
|
// Pause the main context and switch to the new context.
|
|
mSink->BeginContext(anIndex);
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::HandleSavedTokensAbove(), this=%p\n", this));
|
|
START_TIMER()
|
|
|
|
// The body context should contain contents only upto the marked position.
|
|
PRInt32 i=0;
|
|
nsEntryStack* theChildStyleStack=0;
|
|
|
|
for(i=0; i<(theTagCount - theTopIndex); i++) {
|
|
mTempContext->Push((nsCParserNode*)mBodyContext->Pop(theChildStyleStack));
|
|
}
|
|
|
|
// Now flush out all the bad contents.
|
|
while(theBadTokenCount > 0){
|
|
theToken=(CToken*)mMisplacedContent.PopFront();
|
|
if(theToken) {
|
|
theTag = (eHTMLTags)theToken->GetTypeID();
|
|
attrCount = (gHTMLElements[theTag].mSkipTarget)? 0:theToken->GetAttributeCount();
|
|
// Put back attributes, which once got popped out, into the tokenizer
|
|
for(PRInt32 j=0;j<attrCount; j++){
|
|
CToken* theAttrToken = (CToken*)mMisplacedContent.PopFront();
|
|
if(theAttrToken) {
|
|
mTokenizer->PushTokenFront(theAttrToken);
|
|
}
|
|
}
|
|
// Make sure that the BeginContext() is ended only by the call to
|
|
// EndContext().
|
|
if(theTag!=theParentTag || eToken_end!=theToken->GetTokenType())
|
|
result=HandleToken(theToken,mParser);
|
|
else mTokenRecycler->RecycleToken(theToken);
|
|
}
|
|
theBadTokenCount--;
|
|
}//while
|
|
if(theTopIndex != mBodyContext->GetCount()) {
|
|
CloseContainersTo(theTopIndex,mBodyContext->TagAt(theTopIndex),PR_TRUE);
|
|
}
|
|
|
|
// Bad-contents were successfully processed. Now, itz time to get
|
|
// back to the original body context state.
|
|
for(PRInt32 k=0; k<(theTagCount - theTopIndex); k++) {
|
|
mBodyContext->Push((nsCParserNode*)mTempContext->Pop(theChildStyleStack));
|
|
}
|
|
|
|
STOP_TIMER()
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::HandleSavedTokensAbove(), this=%p\n", this));
|
|
// Terminate the new context and switch back to the main context
|
|
mSink->EndContext(anIndex);
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::HandleSavedTokensAbove(), this=%p\n", this));
|
|
START_TIMER()
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
/**
|
|
* This method gets called when an entity token has been
|
|
* encountered in the parse process.
|
|
*
|
|
* @update gess 3/25/98
|
|
* @param aToken -- next (start) token to be handled
|
|
* @return PR_TRUE if all went well; PR_FALSE if error occured
|
|
*/
|
|
nsresult CNavDTD::HandleEntityToken(CToken* aToken) {
|
|
NS_PRECONDITION(0!=aToken,kNullToken);
|
|
|
|
nsresult result=NS_OK;
|
|
eHTMLTags theParentTag=mBodyContext->Last();
|
|
|
|
nsCParserNode* theNode=CreateNode();
|
|
if(theNode) {
|
|
theNode->Init(aToken,mLineNumber,0);
|
|
PRBool theParentContains=-1; //set to -1 to force CanOmit to recompute...
|
|
if(CanOmit(theParentTag,eHTMLTag_entity,theParentContains)) {
|
|
eHTMLTags theCurrTag=(eHTMLTags)aToken->GetTypeID();
|
|
result=HandleOmittedTag(aToken,theCurrTag,theParentTag,theNode);
|
|
return result;
|
|
}
|
|
|
|
#ifdef RICKG_DEBUG
|
|
WriteTokenToLog(aToken);
|
|
#endif
|
|
|
|
result=AddLeaf(theNode);
|
|
RecycleNode(theNode);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method gets called when a comment token has been
|
|
* encountered in the parse process. After making sure
|
|
* we're somewhere in the body, we handle the comment
|
|
* in the same code that we use for text.
|
|
*
|
|
* @update gess 3/25/98
|
|
* @param aToken -- next (start) token to be handled
|
|
* @return PR_TRUE if all went well; PR_FALSE if error occured
|
|
*/
|
|
nsresult CNavDTD::HandleCommentToken(CToken* aToken) {
|
|
NS_PRECONDITION(0!=aToken,kNullToken);
|
|
|
|
nsresult result=NS_OK;
|
|
|
|
nsString& theComment=aToken->GetStringValueXXX();
|
|
mLineNumber += (theComment).CountChar(kNewLine);
|
|
|
|
nsCParserNode* theNode=CreateNode();
|
|
if(theNode) {
|
|
theNode->Init(aToken,mLineNumber,0);
|
|
|
|
#ifdef RICKG_DEBUG
|
|
WriteTokenToLog(aToken);
|
|
#endif
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::HandleCommentToken(), this=%p\n", this));
|
|
|
|
result=(mSink) ? mSink->AddComment(*theNode) : NS_OK;
|
|
|
|
RecycleNode(theNode);
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::HandleCommentToken(), this=%p\n", this));
|
|
START_TIMER();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
/**
|
|
* This method gets called when an attribute token has been
|
|
* encountered in the parse process. This is an error, since
|
|
* all attributes should have been accounted for in the prior
|
|
* start or end tokens
|
|
*
|
|
* @update gess 3/25/98
|
|
* @param aToken -- next (start) token to be handled
|
|
* @return PR_TRUE if all went well; PR_FALSE if error occured
|
|
*/
|
|
nsresult CNavDTD::HandleAttributeToken(CToken* aToken) {
|
|
NS_PRECONDITION(0!=aToken,kNullToken);
|
|
NS_ERROR("attribute encountered -- this shouldn't happen!");
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* This method gets called when a script token has been
|
|
* encountered in the parse process. n
|
|
*
|
|
* @update gess 3/25/98
|
|
* @param aToken -- next (start) token to be handled
|
|
* @return PR_TRUE if all went well; PR_FALSE if error occured
|
|
*/
|
|
nsresult CNavDTD::HandleScriptToken(const nsIParserNode *aNode) {
|
|
// PRInt32 attrCount=aNode.GetAttributeCount(PR_TRUE);
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::HandleScriptToken(), this=%p\n", this));
|
|
|
|
nsresult result=AddLeaf(aNode);
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::HandleScriptToken(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method gets called when a style token has been
|
|
* encountered in the parse process.
|
|
*
|
|
* @update gess 3/25/98
|
|
* @param aToken -- next (start) token to be handled
|
|
* @return PR_TRUE if all went well; PR_FALSE if error occured
|
|
*/
|
|
nsresult CNavDTD::HandleStyleToken(CToken* aToken){
|
|
NS_PRECONDITION(0!=aToken,kNullToken);
|
|
|
|
// CStyleToken* st = (CStyleToken*)(aToken);
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* This method gets called when an "instruction" token has been
|
|
* encountered in the parse process.
|
|
*
|
|
* @update gess 3/25/98
|
|
* @param aToken -- next (start) token to be handled
|
|
* @return PR_TRUE if all went well; PR_FALSE if error occured
|
|
*/
|
|
nsresult CNavDTD::HandleProcessingInstructionToken(CToken* aToken){
|
|
NS_PRECONDITION(0!=aToken,kNullToken);
|
|
|
|
nsresult result=NS_OK;
|
|
|
|
nsCParserNode* theNode=CreateNode();
|
|
if(theNode) {
|
|
theNode->Init(aToken,mLineNumber,0);
|
|
|
|
#ifdef RICKG_DEBUG
|
|
WriteTokenToLog(aToken);
|
|
#endif
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::HandleProcessingInstructionToken(), this=%p\n", this));
|
|
|
|
result=(mSink) ? mSink->AddProcessingInstruction(*theNode) : NS_OK;
|
|
|
|
RecycleNode(theNode);
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::HandleProcessingInstructionToken(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method gets called when a DOCTYPE token has been
|
|
* encountered in the parse process.
|
|
*
|
|
* @update harishd 09/02/99
|
|
* @param aToken -- The very first token to be handled
|
|
* @return PR_TRUE if all went well; PR_FALSE if error occured
|
|
*/
|
|
nsresult CNavDTD::HandleDocTypeDeclToken(CToken* aToken){
|
|
NS_PRECONDITION(0!=aToken,kNullToken);
|
|
|
|
nsresult result=NS_OK;
|
|
|
|
#ifdef RICKG_DEBUG
|
|
WriteTokenToLog(aToken);
|
|
#endif
|
|
|
|
nsString& docTypeStr=aToken->GetStringValueXXX();
|
|
mLineNumber += (docTypeStr).CountChar(kNewLine);
|
|
docTypeStr.Trim("<!>");
|
|
|
|
nsCParserNode* theNode=CreateNode();
|
|
if(theNode) {
|
|
theNode->Init(aToken,mLineNumber,0);
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::HandleDocTypeDeclToken(), this=%p\n", this));
|
|
|
|
result = (mSink)? mSink->AddDocTypeDecl(*theNode,mParseMode):NS_OK;
|
|
RecycleNode(theNode);
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::HandleDocTypeDeclToken(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the attributes for this node, and add then into
|
|
* the node.
|
|
*
|
|
* @update gess4/22/98
|
|
* @param aNode is the node you want to collect attributes for
|
|
* @param aCount is the # of attributes you're expecting
|
|
* @return error code (should be 0)
|
|
*/
|
|
nsresult CNavDTD::CollectAttributes(nsCParserNode& aNode,eHTMLTags aTag,PRInt32 aCount){
|
|
int attr=0;
|
|
|
|
nsresult result=NS_OK;
|
|
int theAvailTokenCount=mTokenizer->GetCount() + mSkippedContent.GetSize();
|
|
if(aCount<=theAvailTokenCount) {
|
|
CToken* theToken=0;
|
|
eHTMLTags theSkipTarget=gHTMLElements[aTag].mSkipTarget;
|
|
for(attr=0;attr<aCount;attr++){
|
|
if((eHTMLTag_unknown!=theSkipTarget) && mSkippedContent.GetSize())
|
|
theToken=(CToken*)mSkippedContent.PopFront();
|
|
else theToken=mTokenizer->PopToken();
|
|
if(theToken) {
|
|
// Sanitize the key for it might contain some non-alpha-non-digit characters
|
|
// at its end. Ex. <OPTION SELECTED/> - This will be tokenized as "<" "OPTION",
|
|
// "SELECTED/", and ">". In this case the "SELECTED/" key will be sanitized to
|
|
// a legitimate "SELECTED" key.
|
|
((CAttributeToken*)theToken)->SanitizeKey();
|
|
|
|
#ifdef RICKG_DEBUG
|
|
WriteTokenToLog(theToken);
|
|
#endif
|
|
|
|
aNode.AddAttribute(theToken);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
result=kEOF;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
/**
|
|
* Causes the next skipped-content token (if any) to
|
|
* be consumed by this node.
|
|
* @update gess5/11/98
|
|
* @param node to consume skipped-content
|
|
* @param holds the number of skipped content elements encountered
|
|
* @return Error condition.
|
|
*/
|
|
nsresult CNavDTD::CollectSkippedContent(nsCParserNode& aNode,PRInt32 &aCount) {
|
|
|
|
eHTMLTags theNodeTag=(eHTMLTags)aNode.GetNodeType();
|
|
|
|
int aIndex=0;
|
|
int aMax=mSkippedContent.GetSize();
|
|
|
|
// XXX rickg This linefeed conversion stuff should be moved out of
|
|
// the parser and into the form element code
|
|
PRBool aMustConvertLinebreaks = PR_FALSE;
|
|
|
|
for(aIndex=0;aIndex<aMax;aIndex++){
|
|
CHTMLToken* theNextToken=(CHTMLToken*)mSkippedContent.PopFront();
|
|
|
|
eHTMLTokenTypes theTokenType=(eHTMLTokenTypes)theNextToken->GetTokenType();
|
|
|
|
mScratch.Truncate();
|
|
// Dont worry about attributes here because it's already stored in
|
|
// the start token as mTrailing content and will get appended in
|
|
// start token's GetSource();
|
|
if(eToken_attribute!=theTokenType) {
|
|
if((eHTMLTag_textarea==theNodeTag) && (eToken_entity==theTokenType)) {
|
|
((CEntityToken*)theNextToken)->TranslateToUnicodeStr(mScratch);
|
|
// since this is an entity, we know that it's only one character.
|
|
// check to see if it's a CR, in which case we'll need to do line
|
|
// termination conversion at the end.
|
|
aMustConvertLinebreaks |= (mScratch[0] == kCR);
|
|
}
|
|
else theNextToken->GetSource(mScratch);
|
|
|
|
aNode.mSkippedContent+=mScratch;
|
|
}
|
|
mTokenRecycler->RecycleToken(theNextToken);
|
|
}
|
|
|
|
// if the string contained CRs (hence is either CR, or CRLF terminated)
|
|
// we need to convert line breaks
|
|
if (aMustConvertLinebreaks)
|
|
{
|
|
/*
|
|
PRInt32 offset;
|
|
while ((offset = aNode.mSkippedContent.Find("\r\n")) != kNotFound)
|
|
aNode.mSkippedContent.Cut(offset, 1); // remove the CR
|
|
|
|
// now replace remaining CRs with LFs
|
|
aNode.mSkippedContent.ReplaceChar("\r", kNewLine);
|
|
*/
|
|
#if 1
|
|
nsLinebreakConverter::ConvertStringLineBreaks(aNode.mSkippedContent,
|
|
nsLinebreakConverter::eLinebreakAny, nsLinebreakConverter::eLinebreakContent);
|
|
#endif
|
|
}
|
|
|
|
// Let's hope that this does not hamper the PERFORMANCE!!
|
|
mLineNumber += aNode.mSkippedContent.CountChar(kNewLine);
|
|
return NS_OK;
|
|
}
|
|
|
|
/***********************************************************************************
|
|
The preceeding tables determine the set of elements each tag can contain...
|
|
***********************************************************************************/
|
|
|
|
/**
|
|
* This method is called to determine whether or not a tag
|
|
* of one type can contain a tag of another type.
|
|
*
|
|
* @update gess 4/8/98
|
|
* @param aParent -- tag enum of parent container
|
|
* @param aChild -- tag enum of child container
|
|
* @return PR_TRUE if parent can contain child
|
|
*/
|
|
PRBool CNavDTD::CanContain(PRInt32 aParent,PRInt32 aChild) const {
|
|
return gHTMLElements[aParent].CanContain((eHTMLTags)aChild);
|
|
}
|
|
|
|
/**
|
|
* Give rest of world access to our tag enums, so that CanContain(), etc,
|
|
* become useful.
|
|
*/
|
|
NS_IMETHODIMP CNavDTD::StringTagToIntTag(nsString &aTag, PRInt32* aIntTag) const {
|
|
*aIntTag = nsHTMLTags::LookupTag(aTag);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP CNavDTD::IntTagToStringTag(PRInt32 aIntTag, nsString& aTag) const {
|
|
aTag = nsHTMLTags::GetStringValue((nsHTMLTag)aIntTag);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP CNavDTD::ConvertEntityToUnicode(const nsString& aEntity, PRInt32* aUnicode) const {
|
|
*aUnicode = nsHTMLEntities::EntityToUnicode(aEntity);
|
|
return NS_OK;
|
|
}
|
|
|
|
/**
|
|
* This method is called to determine whether or not
|
|
* the necessary intermediate tags should be propagated
|
|
* between the given parent and given child.
|
|
*
|
|
* @update gess 4/8/98
|
|
* @param aParent -- tag enum of parent container
|
|
* @param aChild -- tag enum of child container
|
|
* @return PR_TRUE if propagation should occur
|
|
*/
|
|
PRBool CNavDTD::CanPropagate(eHTMLTags aParentTag,eHTMLTags aChildTag,PRBool aParentContains) {
|
|
PRBool result=PR_FALSE;
|
|
PRBool theParentContains=(-1==aParentContains) ? CanContain(aParentTag,aChildTag) : aParentContains;
|
|
|
|
if(aParentTag==aChildTag) {
|
|
return result;
|
|
}
|
|
|
|
if(nsHTMLElement::IsContainer(aChildTag)){
|
|
mScratch.Truncate();
|
|
if(!gHTMLElements[aChildTag].HasSpecialProperty(kNoPropagate)){
|
|
if(nsHTMLElement::IsBlockParent(aParentTag) || (gHTMLElements[aParentTag].GetSpecialChildren())) {
|
|
|
|
result=ForwardPropagate(mScratch,aParentTag,aChildTag);
|
|
|
|
if(PR_FALSE==result){
|
|
|
|
if(eHTMLTag_unknown!=aParentTag) {
|
|
if(aParentTag!=aChildTag) //dont even bother if we're already inside a similar element...
|
|
result=BackwardPropagate(mScratch,aParentTag,aChildTag);
|
|
} //if
|
|
else result=BackwardPropagate(mScratch,eHTMLTag_html,aChildTag);
|
|
|
|
} //elseif
|
|
|
|
}//if
|
|
}//if
|
|
if(mScratch.Length()-1>gHTMLElements[aParentTag].mPropagateRange)
|
|
result=PR_FALSE;
|
|
}//if
|
|
else result=theParentContains;
|
|
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
/**
|
|
* This method gets called to determine whether a given
|
|
* tag can be omitted from opening. Most cannot.
|
|
*
|
|
* @update gess 3/25/98
|
|
* @param aParent
|
|
* @param aChild
|
|
* @param aParentContains
|
|
* @return PR_TRUE if given tag can contain other tags
|
|
*/
|
|
PRBool CNavDTD::CanOmit(eHTMLTags aParent,eHTMLTags aChild,PRBool& aParentContains) {
|
|
|
|
eHTMLTags theAncestor=gHTMLElements[aChild].mExcludingAncestor;
|
|
if(eHTMLTag_unknown!=theAncestor){
|
|
if(HasOpenContainer(theAncestor))
|
|
return PR_TRUE;
|
|
}
|
|
|
|
theAncestor=gHTMLElements[aChild].mRequiredAncestor;
|
|
if(eHTMLTag_unknown!=theAncestor){
|
|
if(!HasOpenContainer(theAncestor)) {
|
|
if(!CanPropagate(aParent,aChild,aParentContains)) {
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
if(gHTMLElements[aParent].HasSpecialProperty(kOmitWS)) {
|
|
if(nsHTMLElement::IsWhitespaceTag(aChild)) {
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
|
|
if(gHTMLElements[aParent].CanExclude(aChild)){
|
|
return PR_TRUE;
|
|
}
|
|
|
|
//Now the obvious test: if the parent can contain the child, don't omit.
|
|
if(-1==aParentContains)
|
|
aParentContains=CanContain(aParent,aChild);
|
|
|
|
if(aParentContains || (aChild==aParent)){
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if(gHTMLElements[aParent].IsBlockEntity()) {
|
|
if(nsHTMLElement::IsInlineEntity(aChild)) { //feel free to drop inlines that a block doesn't contain.
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
|
|
if(gHTMLElements[aParent].HasSpecialProperty(kBadContentWatch)) {
|
|
|
|
if(-1==aParentContains) {
|
|
//we need to compute parent containment here, since it wasn't given...
|
|
if(!gHTMLElements[aParent].CanContain(aChild)){
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
else if (!aParentContains) {
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
|
|
if(gHTMLElements[aParent].HasSpecialProperty(kSaveMisplaced)) {
|
|
return PR_TRUE;
|
|
}
|
|
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
/**
|
|
* This method gets called to determine whether a given
|
|
* tag is itself a container
|
|
*
|
|
* @update gess 4/8/98
|
|
* @param aTag -- tag to test as a container
|
|
* @return PR_TRUE if given tag can contain other tags
|
|
*/
|
|
PRBool CNavDTD::IsContainer(PRInt32 aTag) const {
|
|
return nsHTMLElement::IsContainer((eHTMLTags)aTag);
|
|
}
|
|
|
|
|
|
/**
|
|
* This method tries to design a context vector (without actually
|
|
* changing our parser state) from the parent down to the
|
|
* child.
|
|
*
|
|
* @update gess4/6/98
|
|
* @param aVector is the string where we store our output vector
|
|
* in bottom-up order.
|
|
* @param aParent -- tag type of parent
|
|
* @param aChild -- tag type of child
|
|
* @return TRUE if propagation closes; false otherwise
|
|
*/
|
|
PRBool CNavDTD::ForwardPropagate(nsString& aSequence,eHTMLTags aParentTag,eHTMLTags aChildTag) {
|
|
PRBool result=PR_FALSE;
|
|
|
|
switch(aParentTag) {
|
|
case eHTMLTag_table:
|
|
{
|
|
if((eHTMLTag_tr==aChildTag) || (eHTMLTag_td==aChildTag)) {
|
|
return BackwardPropagate(aSequence,aParentTag,aChildTag);
|
|
}
|
|
}
|
|
//otherwise, intentionally fall through...
|
|
|
|
case eHTMLTag_tr:
|
|
{
|
|
PRBool theCanContainResult=CanContain(eHTMLTag_td,aChildTag);
|
|
if(PR_TRUE==theCanContainResult) {
|
|
aSequence.Append((PRUnichar)eHTMLTag_td);
|
|
result=BackwardPropagate(aSequence,aParentTag,eHTMLTag_td);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case eHTMLTag_th:
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}//switch
|
|
return result;
|
|
}
|
|
|
|
|
|
/**
|
|
* This method tries to design a context map (without actually
|
|
* changing our parser state) from the child up to the parent.
|
|
*
|
|
* @update gess4/6/98
|
|
* @param aVector is the string where we store our output vector
|
|
* in bottom-up order.
|
|
* @param aParent -- tag type of parent
|
|
* @param aChild -- tag type of child
|
|
* @return TRUE if propagation closes; false otherwise
|
|
*/
|
|
PRBool CNavDTD::BackwardPropagate(nsString& aSequence,eHTMLTags aParentTag,eHTMLTags aChildTag) const {
|
|
|
|
eHTMLTags theParentTag=aParentTag; //just init to get past first condition...
|
|
|
|
do {
|
|
TagList* theRootTags=gHTMLElements[aChildTag].GetRootTags();
|
|
if(theRootTags) {
|
|
theParentTag=theRootTags->mTags[0];
|
|
if(CanContain(theParentTag,aChildTag)) {
|
|
//we've found a complete sequence, so push the parent...
|
|
aChildTag=theParentTag;
|
|
aSequence.Append((PRUnichar)theParentTag);
|
|
}
|
|
}
|
|
else break;
|
|
}
|
|
while((theParentTag!=eHTMLTag_unknown) && (theParentTag!=aParentTag));
|
|
|
|
return PRBool(aParentTag==theParentTag);
|
|
}
|
|
|
|
|
|
/**
|
|
* This method allows the caller to determine if a given container
|
|
* is currently open
|
|
*
|
|
* @update gess 11/9/98
|
|
* @param
|
|
* @return
|
|
*/
|
|
PRBool CNavDTD::HasOpenContainer(eHTMLTags aContainer) const {
|
|
PRBool result=PR_FALSE;
|
|
|
|
switch(aContainer) {
|
|
case eHTMLTag_form:
|
|
result=mHasOpenForm; break;
|
|
case eHTMLTag_map:
|
|
result=mHasOpenMap; break;
|
|
default:
|
|
result=mBodyContext->HasOpenContainer(aContainer);
|
|
break;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method allows the caller to determine if a any member
|
|
* in a set of tags is currently open
|
|
*
|
|
* @update gess 11/9/98
|
|
* @param
|
|
* @return
|
|
*/
|
|
PRBool CNavDTD::HasOpenContainer(const eHTMLTags aTagSet[],PRInt32 aCount) const {
|
|
|
|
int theIndex;
|
|
int theTopIndex=mBodyContext->GetCount()-1;
|
|
|
|
for(theIndex=theTopIndex;theIndex>0;theIndex--){
|
|
if(FindTagInSet((*mBodyContext)[theIndex],aTagSet,aCount))
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
/**
|
|
* This method retrieves the HTMLTag type of the topmost
|
|
* container on the stack.
|
|
*
|
|
* @update gess 4/2/98
|
|
* @return tag id of topmost node in contextstack
|
|
*/
|
|
eHTMLTags CNavDTD::GetTopNode() const {
|
|
return mBodyContext->Last();
|
|
}
|
|
|
|
/*********************************************
|
|
Here comes code that handles the interface
|
|
to our content sink.
|
|
*********************************************/
|
|
|
|
|
|
/**
|
|
* It is with great trepidation that I offer this method (privately of course).
|
|
* The gets called whenever a container gets opened. This methods job is to
|
|
* take a look at the (transient) style stack, and open any style containers that
|
|
* are there. Of course, we shouldn't bother to open styles that are incompatible
|
|
* with our parent container.
|
|
*
|
|
* @update gess6/4/98
|
|
* @param tag of the container just opened
|
|
* @return 0 (for now)
|
|
*/
|
|
nsresult CNavDTD::OpenTransientStyles(eHTMLTags aChildTag){
|
|
nsresult result=NS_OK;
|
|
|
|
//later, change this so that transients only open in containers that get leaked in to.
|
|
|
|
if(mStyleHandlingEnabled && (eHTMLTag_newline!=aChildTag)) {
|
|
|
|
#ifdef ENABLE_RESIDUALSTYLE
|
|
|
|
if(CanContain(eHTMLTag_font,aChildTag)) {
|
|
|
|
PRUint32 theCount=mBodyContext->GetCount();
|
|
PRUint32 theLevel=theCount;
|
|
|
|
//this first loop is used to determine how far up the containment
|
|
//hierarchy we go looking for residual styles.
|
|
while ( 1<theLevel) {
|
|
eHTMLTags theParentTag = mBodyContext->TagAt(--theLevel);
|
|
if(gHTMLElements[theParentTag].HasSpecialProperty(kNoStyleLeaksIn)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
mStyleHandlingEnabled=PR_FALSE;
|
|
for(;theLevel<theCount;theLevel++){
|
|
nsEntryStack* theStack=mBodyContext->GetStylesAt(theLevel);
|
|
if(theStack){
|
|
|
|
PRUint32 scount=theStack->mCount;
|
|
PRUint32 sindex=0;
|
|
|
|
nsTagEntry *theEntry=theStack->mEntries;
|
|
for(sindex=0;sindex<scount;sindex++){
|
|
nsCParserNode* theNode=(nsCParserNode*)theEntry->mNode;
|
|
if(1==theNode->mUseCount) {
|
|
theEntry->mParent=theStack; //we do this too, because this entry differs from the new one we're pushing...
|
|
result=OpenContainer(theNode,(eHTMLTags)theNode->GetNodeType(),PR_FALSE,theStack);
|
|
}
|
|
theEntry++;
|
|
} //for
|
|
} //if
|
|
} //for
|
|
mStyleHandlingEnabled=PR_TRUE;
|
|
|
|
} //if
|
|
|
|
#endif
|
|
}//if
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* It is with great trepidation that I offer this method (privately of course).
|
|
* The gets called just prior when a container gets opened. This methods job is to
|
|
* take a look at the (transient) style stack, and <i>close</i> any style containers
|
|
* that are there. Of course, we shouldn't bother to open styles that are incompatible
|
|
* with our parent container.
|
|
* SEE THE TOP OF THIS FILE for more information about how the transient style stack works.
|
|
*
|
|
* @update gess6/4/98
|
|
* @param tag of the container just opened
|
|
* @return 0 (for now)
|
|
*/
|
|
nsresult CNavDTD::CloseTransientStyles(eHTMLTags aChildTag){
|
|
nsresult result=NS_OK;
|
|
|
|
if(mStyleHandlingEnabled) {
|
|
|
|
#ifdef ENABLE_RESIDUALSTYLE
|
|
#if 0
|
|
int theTagPos=0;
|
|
//now iterate style set, and close the containers...
|
|
|
|
nsEntryStack* theStack=mBodyContext->GetStylesAt();
|
|
for(theTagPos=mBodyContext->mOpenStyles;theTagPos>0;theTagPos--){
|
|
eHTMLTags theTag=GetTopNode();
|
|
CStartToken token(theTag);
|
|
nsCParserNode theNode(&token,mLineNumber);
|
|
token.SetTypeID(theTag);
|
|
result=CloseContainer(theNode,theTag,PR_FALSE);
|
|
}
|
|
#endif
|
|
#endif
|
|
} //if
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method gets called when an explicit style close-tag is encountered.
|
|
* It results in the style tag id being popped from our internal style stack.
|
|
*
|
|
* @update gess6/4/98
|
|
* @param
|
|
* @return 0 if all went well (which it always does)
|
|
*/
|
|
nsresult CNavDTD::PopStyle(eHTMLTags aTag){
|
|
nsresult result=0;
|
|
|
|
if(mStyleHandlingEnabled) {
|
|
#ifdef ENABLE_RESIDUALSTYLE
|
|
if(nsHTMLElement::IsResidualStyleTag(aTag)) {
|
|
nsCParserNode* theNode=(nsCParserNode*)mBodyContext->PopStyle(aTag);
|
|
if(theNode) {
|
|
RecycleNode(theNode);
|
|
}
|
|
}
|
|
#endif
|
|
} //if
|
|
return result;
|
|
}
|
|
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
*
|
|
* @update gess4/22/98
|
|
* @param aNode -- next node to be added to model
|
|
*/
|
|
nsresult CNavDTD::OpenHTML(const nsIParserNode *aNode){
|
|
NS_PRECONDITION(mBodyContext->GetCount() >= 0, kInvalidTagStackPos);
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::OpenHTML(), this=%p\n", this));
|
|
|
|
nsresult result=(mSink) ? mSink->OpenHTML(*aNode) : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::OpenHTML(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
mBodyContext->Push(aNode);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
*
|
|
* @update gess4/6/98
|
|
* @param aNode -- next node to be removed from our model
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult CNavDTD::CloseHTML(const nsIParserNode *aNode){
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::CloseHTML(), this=%p\n", this));
|
|
|
|
nsresult result=(mSink) ? mSink->CloseHTML(*aNode) : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::CloseHTML(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param aNode -- next node to be added to model
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult CNavDTD::OpenHead(const nsIParserNode *aNode){
|
|
|
|
nsresult result=NS_OK;
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::OpenHead(), this=%p\n", this));
|
|
|
|
if(!mHasOpenHead++) {
|
|
result=(mSink) ? mSink->OpenHead(*aNode) : NS_OK;
|
|
}
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::OpenHead(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param aNode -- next node to be removed from our model
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult CNavDTD::CloseHead(const nsIParserNode *aNode){
|
|
nsresult result=NS_OK;
|
|
|
|
if(mHasOpenHead) {
|
|
if(0==--mHasOpenHead){
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::CloseHead(), this=%p\n", this));
|
|
|
|
result=(mSink) ? mSink->CloseHead(*aNode) : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::CloseHead(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param aNode -- next node to be added to model
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult CNavDTD::OpenBody(const nsIParserNode *aNode){
|
|
NS_PRECONDITION(mBodyContext->GetCount() >= 0, kInvalidTagStackPos);
|
|
|
|
nsresult result=NS_OK;
|
|
|
|
mHadBody=PR_TRUE;
|
|
|
|
PRBool theBodyIsOpen=HasOpenContainer(eHTMLTag_body);
|
|
if(!theBodyIsOpen){
|
|
//body is not already open, but head may be so close it
|
|
PRInt32 theHTMLPos=mBodyContext->LastOf(eHTMLTag_html);
|
|
result=CloseContainersTo(theHTMLPos+1,eHTMLTag_body,PR_TRUE); //close current stack containers.
|
|
}
|
|
|
|
if(NS_OK==result) {
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::OpenBody(), this=%p\n", this));
|
|
|
|
result=(mSink) ? mSink->OpenBody(*aNode) : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::OpenBody(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
if(!theBodyIsOpen) {
|
|
mBodyContext->Push(aNode);
|
|
mTokenizer->PrependTokens(mMisplacedContent);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method does two things: 1st, help close
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param aNode -- next node to be removed from our model
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult CNavDTD::CloseBody(const nsIParserNode *aNode){
|
|
// NS_PRECONDITION(mBodyContext->GetCount() >= 0, kInvalidTagStackPos);
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::CloseBody(), this=%p\n", this));
|
|
|
|
nsresult result=(mSink) ? mSink->CloseBody(*aNode) : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::CloseBody(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param aNode -- next node to be added to model
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult CNavDTD::OpenForm(const nsIParserNode *aNode){
|
|
if(mHasOpenForm)
|
|
CloseForm(aNode);
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::OpenForm(), this=%p\n", this));
|
|
|
|
nsresult result=(mSink) ? mSink->OpenForm(*aNode) : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::OpenForm(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
if(NS_OK==result)
|
|
mHasOpenForm=PR_TRUE;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param aNode -- next node to be removed from our model
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult CNavDTD::CloseForm(const nsIParserNode *aNode){
|
|
// NS_PRECONDITION(mBodyContext->GetCount() > 0, kInvalidTagStackPos);
|
|
nsresult result=NS_OK;
|
|
if(mHasOpenForm) {
|
|
mHasOpenForm=PR_FALSE;
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::CloseForm(), this=%p\n", this));
|
|
|
|
result=(mSink) ? mSink->CloseForm(*aNode) : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::CloseForm(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param aNode -- next node to be added to model
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult CNavDTD::OpenMap(const nsIParserNode *aNode){
|
|
if(mHasOpenMap)
|
|
CloseMap(aNode);
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::OpenMap(), this=%p\n", this));
|
|
|
|
nsresult result=(mSink) ? mSink->OpenMap(*aNode) : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::OpenMap(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
if(NS_OK==result) {
|
|
mBodyContext->Push(aNode);
|
|
mHasOpenMap=PR_TRUE;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param aNode -- next node to be removed from our model
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult CNavDTD::CloseMap(const nsIParserNode *aNode){
|
|
// NS_PRECONDITION(mBodyContext->GetCount() > 0, kInvalidTagStackPos);
|
|
nsresult result=NS_OK;
|
|
if(mHasOpenMap) {
|
|
mHasOpenMap=PR_FALSE;
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::CloseMap(), this=%p\n", this));
|
|
|
|
result=(mSink) ? mSink->CloseMap(*aNode) : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::CloseMap(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param aNode -- next node to be added to model
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult CNavDTD::OpenFrameset(const nsIParserNode *aNode){
|
|
NS_PRECONDITION(mBodyContext->GetCount() >= 0, kInvalidTagStackPos);
|
|
|
|
mHadFrameset=PR_TRUE;
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::OpenFrameset(), this=%p\n", this));
|
|
|
|
nsresult result=(mSink) ? mSink->OpenFrameset(*aNode) : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::OpenFrameset(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
mBodyContext->Push(aNode);
|
|
mHadFrameset=PR_TRUE;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param aNode -- next node to be removed from our model
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult CNavDTD::CloseFrameset(const nsIParserNode *aNode){
|
|
// NS_PRECONDITION(mBodyContext->GetCount() > 0, kInvalidTagStackPos);
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::CloseFrameset(), this=%p\n", this));
|
|
|
|
nsresult result=(mSink) ? mSink->CloseFrameset(*aNode) : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::CloseFrameset(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param aNode -- next node to be added to model
|
|
* @param aClosedByStartTag -- ONLY TRUE if the container is being closed by opening of another container.
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult
|
|
CNavDTD::OpenContainer(const nsIParserNode *aNode,eHTMLTags aTag,PRBool aClosedByStartTag,nsEntryStack* aStyleStack){
|
|
NS_PRECONDITION(mBodyContext->GetCount() >= 0, kInvalidTagStackPos);
|
|
|
|
nsresult result=NS_OK;
|
|
PRBool isDefaultNode=PR_FALSE;
|
|
|
|
|
|
if (nsHTMLElement::IsResidualStyleTag(aTag))
|
|
OpenTransientStyles(aTag);
|
|
|
|
#ifdef ENABLE_CRC
|
|
#define K_OPENOP 100
|
|
CRCStruct theStruct(aTag,K_OPENOP);
|
|
mComputedCRC32=AccumulateCRC(mComputedCRC32,(char*)&theStruct,sizeof(theStruct));
|
|
#endif
|
|
|
|
switch(aTag) {
|
|
|
|
case eHTMLTag_html:
|
|
result=OpenHTML(aNode); break;
|
|
|
|
case eHTMLTag_head:
|
|
// result=OpenHead(aNode); //open the head...
|
|
result=OpenHead(aNode);
|
|
break;
|
|
|
|
case eHTMLTag_body:
|
|
{
|
|
eHTMLTags theParent=mBodyContext->Last();
|
|
if(!gHTMLElements[aTag].IsSpecialParent(theParent)) {
|
|
mHasOpenBody=PR_TRUE;
|
|
if(mHasOpenHead)
|
|
mHasOpenHead=1;
|
|
CloseHead(aNode); //do this just in case someone left it open...
|
|
result=OpenBody(aNode);
|
|
}
|
|
else isDefaultNode=PR_TRUE;
|
|
}
|
|
break;
|
|
|
|
case eHTMLTag_style:
|
|
case eHTMLTag_title:
|
|
break;
|
|
|
|
case eHTMLTag_textarea:
|
|
result=AddLeaf(aNode);
|
|
break;
|
|
|
|
case eHTMLTag_map:
|
|
result=OpenMap(aNode);
|
|
break;
|
|
|
|
case eHTMLTag_form:
|
|
result=OpenForm(aNode); break;
|
|
|
|
case eHTMLTag_frameset:
|
|
if(mHasOpenHead)
|
|
mHasOpenHead=1;
|
|
CloseHead(aNode); //do this just in case someone left it open...
|
|
result=OpenFrameset(aNode); break;
|
|
|
|
case eHTMLTag_script:
|
|
if(mHasOpenHead)
|
|
mHasOpenHead=1;
|
|
CloseHead(aNode); //do this just in case someone left it open...
|
|
result=HandleScriptToken(aNode);
|
|
break;
|
|
|
|
default:
|
|
isDefaultNode=PR_TRUE;
|
|
break;
|
|
}
|
|
|
|
if(isDefaultNode) {
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::OpenContainer(), this=%p\n", this));
|
|
|
|
result=(mSink) ? mSink->OpenContainer(*aNode) : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::OpenContainer(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
mBodyContext->Push(aNode,aStyleStack);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param aNode -- next node to be removed from our model
|
|
* @param aTag -- id of tag to be closed
|
|
* @param aClosedByStartTag -- ONLY TRUE if the container is being closed by opening of another container.
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult
|
|
CNavDTD::CloseContainer(const nsIParserNode *aNode,eHTMLTags aTarget,PRBool aClosedByStartTag){
|
|
nsresult result=NS_OK;
|
|
eHTMLTags nodeType=(eHTMLTags)aNode->GetNodeType();
|
|
|
|
#ifdef ENABLE_CRC
|
|
#define K_CLOSEOP 200
|
|
CRCStruct theStruct(nodeType,K_CLOSEOP);
|
|
mComputedCRC32=AccumulateCRC(mComputedCRC32,(char*)&theStruct,sizeof(theStruct));
|
|
#endif
|
|
|
|
switch(nodeType) {
|
|
|
|
case eHTMLTag_html:
|
|
result=CloseHTML(aNode); break;
|
|
|
|
case eHTMLTag_style:
|
|
case eHTMLTag_textarea:
|
|
break;
|
|
|
|
case eHTMLTag_head:
|
|
result=CloseHead(aNode);
|
|
break;
|
|
|
|
case eHTMLTag_body:
|
|
result=CloseBody(aNode);
|
|
break;
|
|
|
|
case eHTMLTag_map:
|
|
result=CloseMap(aNode);
|
|
break;
|
|
|
|
case eHTMLTag_form:
|
|
result=CloseForm(aNode);
|
|
break;
|
|
|
|
case eHTMLTag_frameset:
|
|
result=CloseFrameset(aNode);
|
|
break;
|
|
|
|
case eHTMLTag_title:
|
|
default:
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::CloseContainer(), this=%p\n", this));
|
|
|
|
result=(mSink) ? mSink->CloseContainer(*aNode) : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::CloseContainer(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
break;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param anIndex
|
|
* @param aTag
|
|
* @param aClosedByStartTag -- if TRUE, then we're closing something because a start tag caused it
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult CNavDTD::CloseContainersTo(PRInt32 anIndex,eHTMLTags aTarget, PRBool aClosedByStartTag){
|
|
NS_PRECONDITION(mBodyContext->GetCount() > 0, kInvalidTagStackPos);
|
|
nsresult result=NS_OK;
|
|
|
|
|
|
if((anIndex<mBodyContext->GetCount()) && (anIndex>=0)) {
|
|
|
|
while(mBodyContext->GetCount()>anIndex) {
|
|
|
|
nsEntryStack *theChildStyleStack=0;
|
|
eHTMLTags theTag=mBodyContext->Last();
|
|
nsCParserNode *theNode=(nsCParserNode*)mBodyContext->Pop(theChildStyleStack);
|
|
// eHTMLTags theParent=mBodyContext->Last();
|
|
|
|
if(theNode) {
|
|
result=CloseContainer(theNode,aTarget,aClosedByStartTag);
|
|
|
|
#ifdef ENABLE_RESIDUALSTYLE
|
|
|
|
PRBool theTagIsStyle=nsHTMLElement::IsResidualStyleTag(theTag);
|
|
PRBool theStyleDoesntLeakOut = gHTMLElements[aTarget].HasSpecialProperty(kNoStyleLeaksOut);
|
|
// (aClosedByStartTag) ? gHTMLElements[aTarget].HasSpecialProperty(kNoStyleLeaksOut)
|
|
// : gHTMLElements[theParent].HasSpecialProperty(kNoStyleLeaksOut);
|
|
|
|
if(theTagIsStyle) {
|
|
|
|
PRBool theTargetTagIsStyle=nsHTMLElement::IsResidualStyleTag(aTarget);
|
|
|
|
if(aClosedByStartTag) {
|
|
|
|
/***********************************************************
|
|
Handle closure due to new start tag.
|
|
|
|
The cases we're handing here:
|
|
1. <body><b><DIV> //<b> gets pushed onto <body>.mStyles.
|
|
2. <body><a>text<a> //in this case, the target matches, so don't push style
|
|
***************************************************************************/
|
|
|
|
if(0==theNode->mUseCount){
|
|
if(theTag!=aTarget) {
|
|
//don't push if thechild==theTarget
|
|
if(theChildStyleStack) {
|
|
theChildStyleStack->PushFront(theNode);
|
|
}
|
|
else mBodyContext->PushStyle(theNode);
|
|
}
|
|
}
|
|
if(theChildStyleStack) {
|
|
mBodyContext->PushStyles(theChildStyleStack);
|
|
}
|
|
}
|
|
else { //Handle closure due to another close tag.
|
|
|
|
/***********************************************************
|
|
if you're here, then we're dealing with the closure of tags
|
|
caused by a close tag (as opposed to an open tag).
|
|
At a minimum, we should consider pushing residual styles up
|
|
up the stack or popping and recycling displaced nodes.
|
|
|
|
Known cases:
|
|
1. <body><b><div>text</DIV>
|
|
Here the <b> will leak into <div> (see case given above), and
|
|
when <div> closes the <b> is dropped since it's already residual.
|
|
|
|
2. <body><div><b>text</div>
|
|
Here the <b> will leak out of the <div> and get pushed onto
|
|
the RS stack for the <body>, since it originated in the <div>.
|
|
|
|
3. <body><span><b>text</span>
|
|
In this case, the the <b> get's pushed onto the style stack.
|
|
Later we deal with RS styles stored on the <span>
|
|
|
|
4. <body><span><b>text</i>
|
|
Here we the <b>is closed by a (synonymous) style tag.
|
|
In this case, the <b> is simply closed.
|
|
***************************************************************************/
|
|
|
|
if(theChildStyleStack) {
|
|
if(!theStyleDoesntLeakOut) {
|
|
if(theTag!=aTarget) {
|
|
if (0==theNode->mUseCount) {
|
|
theChildStyleStack->PushFront(theNode);
|
|
}
|
|
}
|
|
mBodyContext->PushStyles(theChildStyleStack);
|
|
}
|
|
else{
|
|
//add code here to recycle styles...
|
|
RecycleNodes(theChildStyleStack);
|
|
}
|
|
}
|
|
else if (0==theNode->mUseCount) {
|
|
|
|
if(!theTargetTagIsStyle) {
|
|
mBodyContext->PushStyle(theNode);
|
|
} //otherwise just let the node recycle, because it was explicty closed
|
|
//and does not live on a style stack.
|
|
}
|
|
else {
|
|
//Ah, at last, the final case. If you're here, then we just popped a
|
|
//style tag that got onto that tag stack from a stylestack somewhere.
|
|
//Pop it from the stylestack if the target is also a style tag.
|
|
if(theTargetTagIsStyle) {
|
|
theNode=(nsCParserNode*)mBodyContext->PopStyle(theTag);
|
|
}
|
|
}
|
|
}
|
|
} //if
|
|
else {
|
|
//the tag is not a style tag...
|
|
if(theChildStyleStack) {
|
|
if(theStyleDoesntLeakOut) {
|
|
RecycleNodes(theChildStyleStack);
|
|
}
|
|
else mBodyContext->PushStyles(theChildStyleStack);
|
|
}
|
|
}
|
|
#endif
|
|
}//if anode
|
|
RecycleNode(theNode);
|
|
}
|
|
|
|
|
|
if(eParseMode_quirks==mParseMode) {
|
|
|
|
#if 0
|
|
|
|
//This code takes any nodes in style stack for at this level and reopens
|
|
//then where they were originally.
|
|
|
|
if(!aClosedByStartTag) {
|
|
nsEntryStack* theStack=mBodyContext->GetStylesAt(anIndex-1);
|
|
if(theStack){
|
|
|
|
PRUint32 scount=theStack->mCount;
|
|
PRUint32 sindex=0;
|
|
|
|
for(sindex=0;sindex<scount;sindex++){
|
|
nsIParserNode* theNode=theStack->NodeAt(sindex);
|
|
if(theNode) {
|
|
((nsCParserNode*)theNode)->mUseCount--;
|
|
result=OpenContainer(theNode,(eHTMLTags)theNode->GetNodeType(),PR_FALSE);
|
|
}
|
|
}
|
|
theStack->mCount=0;
|
|
} //if
|
|
} //if
|
|
#endif
|
|
}//if
|
|
|
|
} //if
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param aTag --
|
|
* @param aClosedByStartTag -- ONLY TRUE if the container is being closed by opening of another container.
|
|
* @return TRUE if ok, FALSE if error
|
|
*/
|
|
nsresult CNavDTD::CloseContainersTo(eHTMLTags aTarget,PRBool aClosedByStartTag){
|
|
NS_PRECONDITION(mBodyContext->GetCount() > 0, kInvalidTagStackPos);
|
|
|
|
PRInt32 pos=mBodyContext->LastOf(aTarget);
|
|
|
|
if(kNotFound!=pos) {
|
|
//the tag is indeed open, so close it.
|
|
return CloseContainersTo(pos,aTarget,aClosedByStartTag);
|
|
}
|
|
|
|
eHTMLTags theTopTag=mBodyContext->Last();
|
|
|
|
PRBool theTagIsSynonymous=((nsHTMLElement::IsResidualStyleTag(aTarget)) && (nsHTMLElement::IsResidualStyleTag(theTopTag)));
|
|
if(!theTagIsSynonymous){
|
|
theTagIsSynonymous=((nsHTMLElement::IsHeadingTag(aTarget)) && (nsHTMLElement::IsHeadingTag(theTopTag)));
|
|
}
|
|
|
|
if(theTagIsSynonymous) {
|
|
//if you're here, it's because we're trying to close one tag,
|
|
//but a different (synonymous) one is actually open. Because this is NAV4x
|
|
//compatibililty mode, we must close the one that's really open.
|
|
aTarget=theTopTag;
|
|
pos=mBodyContext->LastOf(aTarget);
|
|
if(kNotFound!=pos) {
|
|
//the tag is indeed open, so close it.
|
|
return CloseContainersTo(pos,aTarget,aClosedByStartTag);
|
|
}
|
|
}
|
|
|
|
nsresult result=NS_OK;
|
|
TagList* theRootTags=gHTMLElements[aTarget].GetRootTags();
|
|
eHTMLTags theParentTag=(theRootTags) ? theRootTags->mTags[0] : eHTMLTag_unknown;
|
|
pos=mBodyContext->LastOf(theParentTag);
|
|
if(kNotFound!=pos) {
|
|
//the parent container is open, so close it instead
|
|
result=CloseContainersTo(pos+1,aTarget,aClosedByStartTag);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method does two things: 1st, help construct
|
|
* our own internal model of the content-stack; and
|
|
* 2nd, pass this message on to the sink.
|
|
* @update gess4/6/98
|
|
* @param aNode -- next node to be added to model
|
|
* @return error code; 0 means OK
|
|
*/
|
|
nsresult CNavDTD::AddLeaf(const nsIParserNode *aNode){
|
|
nsresult result=NS_OK;
|
|
|
|
if(mSink){
|
|
eHTMLTags theTag=(eHTMLTags)aNode->GetNodeType();
|
|
OpenTransientStyles(theTag);
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::AddLeaf(), this=%p\n", this));
|
|
|
|
result=mSink->AddLeaf(*aNode);
|
|
|
|
if(NS_SUCCEEDED(result)) {
|
|
PRBool done=PR_FALSE;
|
|
eHTMLTags thePrevTag=theTag;
|
|
nsCParserNode theNode;
|
|
|
|
while(!done && NS_SUCCEEDED(result)) {
|
|
CToken* theToken=mTokenizer->PeekToken();
|
|
if(theToken) {
|
|
theTag=(eHTMLTags)theToken->GetTypeID();
|
|
switch(theTag) {
|
|
case eHTMLTag_newline:
|
|
mLineNumber++;
|
|
case eHTMLTag_whitespace:
|
|
{
|
|
theToken=mTokenizer->PopToken();
|
|
theNode.Init(theToken,mLineNumber,0);
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::AddLeaf(), this=%p\n", this));
|
|
|
|
result=mSink->AddLeaf(theNode);
|
|
|
|
if((NS_SUCCEEDED(result))||(NS_ERROR_HTMLPARSER_BLOCK==result)) {
|
|
if(mTokenRecycler) {
|
|
mTokenRecycler->RecycleToken(theToken);
|
|
}
|
|
else delete theToken;
|
|
}
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::AddLeaf(), this=%p\n", this));
|
|
START_TIMER();
|
|
thePrevTag=theTag;
|
|
}
|
|
break;
|
|
case eHTMLTag_text:
|
|
if((mHasOpenBody) && (!mHasOpenHead) &&
|
|
!(nsHTMLElement::IsWhitespaceTag(thePrevTag))) {
|
|
theToken=mTokenizer->PopToken();
|
|
theNode.Init(theToken,mLineNumber);
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::AddLeaf(), this=%p\n", this));
|
|
STOP_TIMER();
|
|
|
|
mLineNumber += theToken->mNewlineCount;
|
|
result=mSink->AddLeaf(theNode);
|
|
|
|
if((NS_SUCCEEDED(result))||(NS_ERROR_HTMLPARSER_BLOCK==result)) {
|
|
if(mTokenRecycler) {
|
|
mTokenRecycler->RecycleToken(theToken);
|
|
}
|
|
else delete theToken;
|
|
}
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::AddLeaf(), this=%p\n", this));
|
|
START_TIMER();
|
|
}
|
|
else done=PR_TRUE;
|
|
break;
|
|
|
|
default:
|
|
done=PR_TRUE;
|
|
} //switch
|
|
}//if
|
|
else done=PR_TRUE;
|
|
} //while
|
|
} //if
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::AddLeaf(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Call this method ONLY when you want to write a leaf
|
|
* into the head container.
|
|
*
|
|
* @update gess 03/14/99
|
|
* @param aNode -- next node to be added to model
|
|
* @return error code; 0 means OK
|
|
*/
|
|
nsresult CNavDTD::AddHeadLeaf(nsIParserNode *aNode){
|
|
nsresult result=NS_OK;
|
|
|
|
static eHTMLTags gNoXTags[]={eHTMLTag_noembed,eHTMLTag_noframes,eHTMLTag_nolayer,eHTMLTag_noscript};
|
|
|
|
//this code has been added to prevent <meta> tags from being processed inside
|
|
//the document if the <meta> tag itself was found in a <noframe>, <nolayer>, or <noscript> tag.
|
|
eHTMLTags theTag=(eHTMLTags)aNode->GetNodeType();
|
|
|
|
if(eHTMLTag_meta==theTag)
|
|
if(HasOpenContainer(gNoXTags,sizeof(gNoXTags)/sizeof(eHTMLTag_unknown))) {
|
|
return result;
|
|
}
|
|
|
|
if(mSink) {
|
|
result=OpenHead(aNode);
|
|
if(NS_OK==result) {
|
|
if(eHTMLTag_title==theTag) {
|
|
|
|
///XXX this evil hack is necessary only for beta.
|
|
//Post beta, lets make the GetSkippedContent() call non-const.
|
|
|
|
const nsString& theString=aNode->GetSkippedContent();
|
|
nsString* theStr=(nsString*)&theString;
|
|
theStr->CompressWhitespace();
|
|
|
|
STOP_TIMER()
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::AddHeadLeaf(), this=%p\n", this));
|
|
mSink->SetTitle(theString);
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::AddHeadLeaf(), this=%p\n", this));
|
|
START_TIMER()
|
|
|
|
}
|
|
else result=AddLeaf(aNode);
|
|
// XXX If the return value tells us to block, go
|
|
// ahead and close the tag out anyway, since its
|
|
// contents will be consumed.
|
|
if (NS_SUCCEEDED(result)) {
|
|
nsresult rv=CloseHead(aNode);
|
|
// XXX Only send along a failure. If the close
|
|
// succeeded we still may need to indicate that the
|
|
// parser has blocked (i.e. return the result of
|
|
// the AddLeaf.
|
|
if (rv != NS_OK) {
|
|
result = rv;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* This method gets called to create a valid context stack
|
|
* for the given child. We compare the current stack to the
|
|
* default needs of the child, and push new guys onto the
|
|
* stack until the child can be properly placed.
|
|
*
|
|
* @update gess 4/8/98
|
|
* @param aChildTag is the child for whom we need to
|
|
* create a new context vector
|
|
* @return true if we succeeded, otherwise false
|
|
*/
|
|
nsresult CNavDTD::CreateContextStackFor(eHTMLTags aChildTag){
|
|
|
|
mScratch.Truncate();
|
|
|
|
nsresult result=(nsresult)kContextMismatch;
|
|
eHTMLTags theTop=mBodyContext->Last();
|
|
PRBool bResult=ForwardPropagate(mScratch,theTop,aChildTag);
|
|
|
|
if(PR_FALSE==bResult){
|
|
|
|
if(eHTMLTag_unknown!=theTop) {
|
|
if(theTop!=aChildTag) //dont even bother if we're already inside a similar element...
|
|
bResult=BackwardPropagate(mScratch,theTop,aChildTag);
|
|
} //if
|
|
else bResult=BackwardPropagate(mScratch,eHTMLTag_html,aChildTag);
|
|
} //elseif
|
|
|
|
PRInt32 theLen=mScratch.Length();
|
|
eHTMLTags theTag=(eHTMLTags)mScratch[--theLen];
|
|
|
|
if((0==mBodyContext->GetCount()) || (mBodyContext->Last()==theTag))
|
|
result=NS_OK;
|
|
|
|
//now, build up the stack according to the tags
|
|
//you have that aren't in the stack...
|
|
if(PR_TRUE==bResult){
|
|
while(theLen) {
|
|
theTag=(eHTMLTags)mScratch[--theLen];
|
|
CStartToken *theToken=(CStartToken*)mTokenRecycler->CreateTokenOfType(eToken_start,theTag);
|
|
HandleStartToken(theToken); //these should all wind up on contextstack, so don't recycle.
|
|
}
|
|
result=NS_OK;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the preferred tokenizer for use by this DTD.
|
|
* @update gess12/28/98
|
|
* @param none
|
|
* @return ptr to tokenizer
|
|
*/
|
|
nsresult CNavDTD::GetTokenizer(nsITokenizer*& aTokenizer) {
|
|
nsresult result=NS_OK;
|
|
if(!mTokenizer) {
|
|
result=NS_NewHTMLTokenizer(&mTokenizer,mParseMode,PR_FALSE);
|
|
}
|
|
aTokenizer=mTokenizer;
|
|
return result;
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
* @update gess8/4/98
|
|
* @param
|
|
* @return
|
|
*/
|
|
nsITokenRecycler* CNavDTD::GetTokenRecycler(void){
|
|
if(!mTokenRecycler) {
|
|
nsresult result=GetTokenizer(mTokenizer);
|
|
if (NS_SUCCEEDED(result)) {
|
|
mTokenRecycler=(CTokenRecycler*)mTokenizer->GetTokenRecycler();
|
|
}
|
|
}
|
|
return mTokenRecycler;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @update gess5/18/98
|
|
* @param
|
|
* @return
|
|
*/
|
|
nsresult CNavDTD::WillResumeParse(void){
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::WillResumeParse(), this=%p\n", this));
|
|
|
|
nsresult result=(mSink) ? mSink->WillResume() : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::WillResumeParse(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method gets called when the parsing process is interrupted
|
|
* due to lack of data (waiting for netlib).
|
|
* @update gess5/18/98
|
|
* @return error code
|
|
*/
|
|
nsresult CNavDTD::WillInterruptParse(void){
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: CNavDTD::WillInterruptParse(), this=%p\n", this));
|
|
|
|
nsresult result=(mSink) ? mSink->WillInterrupt() : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: CNavDTD::WillInterruptParse(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
* @update gpk03/14/99
|
|
* @param
|
|
* @return
|
|
*/
|
|
nsresult CNavDTD::DoFragment(PRBool aFlag)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|