2b192c78f9
This fixes bugs 50742, 47014, 50568 46554, 55806, 56000, 55669 and partly (at least) fixes bug 53188 sr=kin, waterson, scc, vidur, r=kandrot, pinkerton, testers=jst, jfrancis, akkana, kin, and everyone who used the trunk since saturday... git-svn-id: svn://10.0.0.236/branches/Netscape_20000922_BRANCH@80926 18797224-902f-48f8-a5cc-f745e15eee43
1095 lines
31 KiB
C++
1095 lines
31 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): rickg@netscape.com
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*/
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//#define ENABLE_CRC
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//#define RICKG_DEBUG
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#include "nsDebug.h"
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#include "nsIDTDDebug.h"
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#include "COtherDTD.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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#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_IOTHERHTML_DTD_IID);
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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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#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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#include "COtherElements.h"
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/************************************************************************
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And now for the main class -- COtherDTD...
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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 COtherDTD::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 = (COtherDTD*)(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(COtherDTD)
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NS_IMPL_RELEASE(COtherDTD)
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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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COtherDTD::COtherDTD() : nsIDTD(), mSharedNodes(0) {
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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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mTokenizer=0;
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mTokenAllocator=0;
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mComputedCRC32=0;
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mExpectedCRC32=0;
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mDTDState=NS_OK;
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mDocType=eHTML4Text;
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mHadFrameset=PR_FALSE;
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mHadBody=PR_FALSE;
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mHasOpenScript=PR_FALSE;
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mParserCommand=eViewNormal;
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mBodyContext=new nsDTDContext();
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#if 1 //set this to 1 if you want strictDTD to be based on the environment setting.
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char* theEnvString = PR_GetEnv("MOZ_DISABLE_STRICT");
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mEnableStrict=PRBool(0==theEnvString);
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#else
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mEnableStrict=PR_TRUE;
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#endif
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if(!gElementTable) {
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gElementTable = new CElementTable();
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}
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#ifdef RICKG_DEBUG
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//DebugDumpContainmentRules2(*this,"c:/temp/DTDRules.new","New COtherDTD 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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void COtherDTD::ReleaseTable(void) {
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if(gElementTable) {
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delete gElementTable;
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gElementTable=0;
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}
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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* COtherDTD::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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*
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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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const nsIID& COtherDTD::GetMostDerivedIID(void)const {
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return kClassIID;
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}
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/**
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* Default destructor
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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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COtherDTD::~COtherDTD(){
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delete mBodyContext;
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NS_IF_RELEASE(mTokenizer);
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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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#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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}
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/**
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* This method is defined in nsIParser. It is used to
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* cause the COM-like construction of an nsParser.
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*
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* @update gess 4/8/98
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* @param nsIParser** ptr to newly instantiated parser
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* @return NS_xxx error result
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*/
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NS_HTMLPARS nsresult NS_NewOtherHTMLDTD(nsIDTD** aInstancePtrResult) {
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COtherDTD* it = new COtherDTD();
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if (it == 0) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return it->QueryInterface(kClassIID, (void **) aInstancePtrResult);
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}
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/**
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* Call this method if you want the DTD to construct a fresh
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* instance of itself.
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* @update gess7/23/98
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* @param
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* @return
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*/
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nsresult COtherDTD::CreateNewInstance(nsIDTD** aInstancePtrResult){
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nsresult result=NS_NewOtherHTMLDTD(aInstancePtrResult);
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if(aInstancePtrResult) {
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COtherDTD *theOtherDTD=(COtherDTD*)*aInstancePtrResult;
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if(theOtherDTD) {
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theOtherDTD->mDTDMode=mDTDMode;
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theOtherDTD->mParserCommand=mParserCommand;
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theOtherDTD->mDocType=mDocType;
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theOtherDTD->mEnableStrict=mEnableStrict;
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}
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}
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return result;
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}
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/**
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* Called by the parser to initiate dtd verification of the
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* internal context stack.
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* @update gess 7/23/98
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* @param
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* @return
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*/
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PRBool COtherDTD::Verify(nsString& aURLRef,nsIParser* aParser){
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PRBool result=PR_TRUE;
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/*
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* Disable some DTD debugging code in the parser that
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* breaks on some compilers because of some broken
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* streams code in prstrm.cpp.
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*/
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#if !defined(MOZ_DISABLE_DTD_DEBUG)
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if(!mDTDDebug){
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nsresult rval = NS_NewDTDDebug(&mDTDDebug);
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if (NS_OK != rval) {
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fputs("Cannot create parser debugger.\n", stdout);
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result=-PR_FALSE;
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}
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else mDTDDebug->SetVerificationDirectory(kVerificationDir);
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}
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#endif
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if(mDTDDebug) {
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// mDTDDebug->Verify(this,aParser,mBodyContext->GetCount(),mBodyContext->mStack,aURLRef);
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}
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return result;
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}
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/**
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* This method is called to determine if the given DTD can parse
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* a document in a given source-type.
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* NOTE: Parsing always assumes that the end result will involve
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* storing the result in the main content model.
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* @update gess6/24/98
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* @param
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* @return TRUE if this DTD can satisfy the request; FALSE otherwise.
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*/
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eAutoDetectResult COtherDTD::CanParse(CParserContext& aParserContext,nsString& aBuffer, PRInt32 aVersion) {
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eAutoDetectResult result=eUnknownDetect;
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if(mEnableStrict) {
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if(eViewSource==aParserContext.mParserCommand) {
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if(PR_TRUE==aParserContext.mMimeType.EqualsWithConversion(kPlainTextContentType)) {
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result=eValidDetect;
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}
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else if(aParserContext.mMimeType.EqualsWithConversion(kRTFTextContentType)){
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result=eValidDetect;
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}
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}
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else {
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if(PR_TRUE==aParserContext.mMimeType.EqualsWithConversion(kPlainTextContentType)) {
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result=eValidDetect;
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}
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else if(PR_TRUE==aParserContext.mMimeType.EqualsWithConversion(kHTMLTextContentType)) {
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switch(aParserContext.mDTDMode) {
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case eDTDMode_strict:
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case eDTDMode_transitional:
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result=ePrimaryDetect;
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break;
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default:
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result=eValidDetect;
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break;
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}
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}
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else {
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//otherwise, look into the buffer to see if you recognize anything...
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PRBool theBufHasXML=PR_FALSE;
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if(BufferContainsHTML(aBuffer,theBufHasXML)){
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result = eValidDetect ;
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if(0==aParserContext.mMimeType.Length()) {
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aParserContext.SetMimeType(NS_ConvertToString(kHTMLTextContentType));
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if(!theBufHasXML) {
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switch(aParserContext.mDTDMode) {
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case eDTDMode_strict:
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case eDTDMode_transitional:
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result=ePrimaryDetect;
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break;
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default:
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result=eValidDetect;
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break;
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}
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}
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else result=eValidDetect;
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}
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}
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}
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}
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}
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return result;
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}
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/**
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* The parser uses a code sandwich to wrap the parsing process. Before
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* the process begins, WillBuildModel() is called. Afterwards the parser
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* calls DidBuildModel().
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* @update rickg 03.20.2000
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* @param aParserContext
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* @param aSink
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* @return error code (almost always 0)
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*/
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nsresult COtherDTD::WillBuildModel( const CParserContext& aParserContext,nsIContentSink* aSink){
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nsresult result=NS_OK;
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mFilename=aParserContext.mScanner->GetFilename();
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mHasOpenBody=PR_FALSE;
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mHadFrameset=PR_FALSE;
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mLineNumber=1;
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mHasOpenScript=PR_FALSE;
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mDTDMode=aParserContext.mDTDMode;
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mParserCommand=aParserContext.mParserCommand;
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if((!aParserContext.mPrevContext) && (aSink)) {
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STOP_TIMER();
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MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: COtherDTD::WillBuildModel(), this=%p\n", this));
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mDocType=aParserContext.mDocType;
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mBodyContext->mFlags.mTransitional=PRBool(aParserContext.mDTDMode==eDTDMode_transitional);
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if(aSink && (!mSink)) {
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result=aSink->QueryInterface(kIHTMLContentSinkIID, (void **)&mSink);
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}
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if(result==NS_OK) {
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result = aSink->WillBuildModel();
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mBodyContext->ResetCounters();
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MOZ_TIMER_DEBUGLOG(("Start: Parse Time: COtherDTD::WillBuildModel(), this=%p\n", this));
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START_TIMER();
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mSkipTarget=eHTMLTag_unknown;
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mComputedCRC32=0;
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mExpectedCRC32=0;
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}
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}
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return result;
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}
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/**
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* This is called when it's time to read as many tokens from the tokenizer
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* as you can. Not all tokens may make sense, so you may not be able to
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* read them all (until more come in later).
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*
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* @update gess5/18/98
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* @param aParser is the parser object that's driving this process
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* @return error code (almost always NS_OK)
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*/
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nsresult COtherDTD::BuildModel(nsIParser* aParser,nsITokenizer* aTokenizer,nsITokenObserver* anObserver,nsIContentSink* aSink) {
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nsresult result=NS_OK;
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if(aTokenizer) {
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nsITokenizer* oldTokenizer=mTokenizer;
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mTokenizer=aTokenizer;
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mParser=(nsParser*)aParser;
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if(mTokenizer) {
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mTokenAllocator=mTokenizer->GetTokenAllocator();
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mBodyContext->SetTokenAllocator(mTokenAllocator);
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if(mSink) {
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if(!mBodyContext->GetCount()) {
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//if the content model is empty, then begin by opening <html>...
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CStartToken *theToken=(CStartToken*)mTokenAllocator->CreateTokenOfType(eToken_start,eHTMLTag_html,NS_ConvertToString("html"));
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HandleStartToken(theToken); //this token should get pushed on the context stack, don't recycle it.
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}
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while(NS_SUCCEEDED(result)){
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if(mDTDState!=NS_ERROR_HTMLPARSER_STOPPARSING) {
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CToken* theToken=mTokenizer->PopToken();
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if(theToken) {
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result=HandleToken(theToken,aParser);
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}
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else break;
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}
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else {
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result=mDTDState;
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break;
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}
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}//while
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mTokenizer=oldTokenizer;
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}
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}
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}
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else result=NS_ERROR_HTMLPARSER_BADTOKENIZER;
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return result;
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}
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/**
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*
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* @update gess5/18/98
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* @param
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* @return
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*/
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nsresult COtherDTD::DidBuildModel(nsresult anErrorCode,PRBool aNotifySink,nsIParser* aParser,nsIContentSink* aSink){
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nsresult result=NS_OK;
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if(aSink) {
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if(aParser && (NS_OK==result)){
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if(aNotifySink){
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if((NS_OK==anErrorCode) && (mBodyContext->GetCount()>0)) {
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PRInt32 theIndex=mBodyContext->GetCount()-1;
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eHTMLTags theChild = mBodyContext->TagAt(theIndex);
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while(theIndex>0) {
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eHTMLTags theParent= mBodyContext->TagAt(--theIndex);
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CElement *theElement=gElementTable->mElements[theParent];
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nsIParserNode *theNode=mBodyContext->PeekNode();
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theElement->HandleEndToken(theNode,theChild,mBodyContext,mSink);
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theChild=theParent;
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}
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nsEntryStack *theChildStyles=0;
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nsCParserNode* theNode=(nsCParserNode*)mBodyContext->Pop(theChildStyles);
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if(theNode) {
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mSink->CloseHTML(*theNode);
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}
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}
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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);
|
|
if(theNode) {
|
|
theNode->mUseCount=0;
|
|
mBodyContext->RecycleNode(theNode);
|
|
if(theChildStyles) {
|
|
delete theChildStyles;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
} //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 COtherDTD::HandleToken(CToken* aToken,nsIParser* aParser){
|
|
nsresult result=NS_OK;
|
|
|
|
if(aToken) {
|
|
CHTMLToken* theToken= (CHTMLToken*)(aToken);
|
|
eHTMLTokenTypes theType=eHTMLTokenTypes(theToken->GetTokenType());
|
|
|
|
// theToken->mUseCount=0; //assume every token coming into this system needs recycling.
|
|
|
|
mParser=(nsParser*)aParser;
|
|
|
|
switch(theType) {
|
|
case eToken_text:
|
|
case eToken_start:
|
|
case eToken_whitespace:
|
|
case eToken_newline:
|
|
case eToken_doctypeDecl:
|
|
result=HandleStartToken(theToken); break;
|
|
|
|
case eToken_entity:
|
|
result=HandleEntityToken(theToken); break;
|
|
|
|
case eToken_end:
|
|
result=HandleEndToken(theToken); break;
|
|
|
|
default:
|
|
break;
|
|
}//switch
|
|
|
|
|
|
if(NS_SUCCEEDED(result) || (NS_ERROR_HTMLPARSER_BLOCK==result)) {
|
|
IF_FREE(theToken);
|
|
}
|
|
else if(result==NS_ERROR_HTMLPARSER_STOPPARSING)
|
|
mDTDState=result;
|
|
else return NS_OK;
|
|
|
|
}//if
|
|
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 COtherDTD::DidHandleStartTag(nsCParserNode& aNode,eHTMLTags aChildTag){
|
|
nsresult result=NS_OK;
|
|
|
|
switch(aChildTag){
|
|
|
|
case eHTMLTag_script:
|
|
mHasOpenScript=PR_TRUE;
|
|
break;
|
|
|
|
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_meta:
|
|
{
|
|
//we should only enable user-defined entities in debug builds...
|
|
|
|
PRInt32 theCount=aNode.GetAttributeCount();
|
|
const nsString* theNamePtr=0;
|
|
const nsString* theValuePtr=0;
|
|
|
|
if(theCount) {
|
|
PRInt32 theIndex=0;
|
|
for(theIndex=0;theIndex<theCount;theIndex++){
|
|
const nsString& theKey=aNode.GetKeyAt(theIndex);
|
|
if(theKey.EqualsWithConversion("ENTITY",PR_TRUE)) {
|
|
const nsString& theName=aNode.GetValueAt(theIndex);
|
|
theNamePtr=&theName;
|
|
}
|
|
else if(theKey.EqualsWithConversion("VALUE",PR_TRUE)) {
|
|
//store the named enity with the context...
|
|
const nsString& theValue=aNode.GetValueAt(theIndex);
|
|
theValuePtr=&theValue;
|
|
}
|
|
}
|
|
}
|
|
if(theNamePtr && theValuePtr) {
|
|
mBodyContext->RegisterEntity(*theNamePtr,*theValuePtr);
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}//switch
|
|
|
|
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 COtherDTD::WillHandleStartTag(CToken* aToken,eHTMLTags aTag,nsCParserNode& aNode){
|
|
nsresult result=NS_OK;
|
|
|
|
//first let's see if there's some skipped content to deal with...
|
|
#if 0
|
|
PRInt32 theAttrCount = aNode.GetAttributeCount();
|
|
if(*gElementTable->mElements[aTag].mSkipTarget) {
|
|
result=CollectSkippedContent(aNode,theAttrCount);
|
|
}
|
|
#endif
|
|
|
|
STOP_TIMER()
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: COtherDTD::WillHandleStartTag(), this=%p\n", this));
|
|
|
|
if(mParser) {
|
|
|
|
switch(aTag) {
|
|
case eHTMLTag_newline:
|
|
mLineNumber++;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
CObserverService* theService=mParser->GetObserverService();
|
|
if(theService) {
|
|
const nsISupportsParserBundle* bundle=mParser->GetParserBundle();
|
|
result=theService->Notify(aTag,aNode,(void*)bundle, NS_ConvertToString(kHTMLTextContentType), mParser);
|
|
}
|
|
}
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: COtherDTD::WillHandleStartTag(), this=%p\n", this));
|
|
START_TIMER()
|
|
|
|
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 COtherDTD::HandleStartToken(CToken* aToken) {
|
|
#ifdef RICKG_DEBUG
|
|
WriteTokenToLog(aToken);
|
|
#endif
|
|
|
|
//Begin by gathering up attributes...
|
|
|
|
nsresult result=NS_OK;
|
|
nsCParserNode* theNode=CreateNode();
|
|
if(theNode) {
|
|
theNode->Init(aToken,mLineNumber,mTokenAllocator);
|
|
|
|
eHTMLTags theChildTag=(eHTMLTags)aToken->GetTypeID();
|
|
PRInt16 attrCount=aToken->GetAttributeCount();
|
|
eHTMLTags theParent=mBodyContext->Last();
|
|
|
|
result=(0==attrCount) ? NS_OK : CollectAttributes(*theNode,theChildTag,attrCount);
|
|
|
|
if(NS_OK==result) {
|
|
result=WillHandleStartTag(aToken,theChildTag,*theNode);
|
|
if(NS_OK==result) {
|
|
|
|
mLineNumber += aToken->mNewlineCount;
|
|
|
|
PRBool theTagWasHandled=PR_FALSE;
|
|
|
|
switch(theChildTag) {
|
|
|
|
case eHTMLTag_html:
|
|
if(!mBodyContext->HasOpenContainer(theChildTag)){
|
|
mSink->OpenHTML(*theNode);
|
|
mBodyContext->Push(theNode,0);
|
|
}
|
|
theTagWasHandled=PR_TRUE;
|
|
break;
|
|
|
|
default:
|
|
CElement* theElement=gElementTable->mElements[theParent];
|
|
if(theElement) {
|
|
result=theElement->HandleStartToken(theNode,theChildTag,mBodyContext,mSink);
|
|
theTagWasHandled=PR_TRUE;
|
|
}
|
|
break;
|
|
}//switch
|
|
|
|
if(theTagWasHandled) {
|
|
DidHandleStartTag(*theNode,theChildTag);
|
|
}
|
|
|
|
} //if
|
|
}//if
|
|
mBodyContext->RecycleNode(theNode);
|
|
}
|
|
else result=NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* 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 COtherDTD::HandleEndToken(CToken* aToken) {
|
|
nsresult result=NS_OK;
|
|
eHTMLTags theChildTag=(eHTMLTags)aToken->GetTypeID();
|
|
|
|
#ifdef RICKG_DEBUG
|
|
WriteTokenToLog(aToken);
|
|
#endif
|
|
|
|
switch(theChildTag) {
|
|
|
|
case eHTMLTag_body: //we intentionally don't let the user close HTML or BODY
|
|
case eHTMLTag_html:
|
|
break;
|
|
|
|
case eHTMLTag_script:
|
|
mHasOpenScript=PR_FALSE;
|
|
|
|
default:
|
|
PRInt32 theCount=mBodyContext->GetCount();
|
|
eHTMLTags theParent=mBodyContext->TagAt(theCount-1);
|
|
if(theChildTag==theParent) {
|
|
theParent=mBodyContext->TagAt(theCount-2);
|
|
}
|
|
CElement* theElement=gElementTable->mElements[theParent];
|
|
if(theElement) {
|
|
nsCParserNode* theNode=CreateNode();
|
|
if(theNode) {
|
|
theNode->Init(aToken,mLineNumber,mTokenAllocator);
|
|
result=theElement->HandleEndToken(theNode,theChildTag,mBodyContext,mSink);
|
|
mBodyContext->RecycleNode((nsCParserNode*)theNode);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
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 COtherDTD::CollectAttributes(nsCParserNode& aNode,eHTMLTags aTag,PRInt32 aCount){
|
|
int attr=0;
|
|
|
|
nsresult result=NS_OK;
|
|
int theAvailTokenCount=mTokenizer->GetCount();
|
|
if(aCount<=theAvailTokenCount) {
|
|
//gElementTable->mElements[aTag]->GetSkipTarget();
|
|
CToken* theToken=0;
|
|
for(attr=0;attr<aCount;attr++){
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* 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 COtherDTD::HandleEntityToken(CToken* aToken) {
|
|
nsresult result=NS_OK;
|
|
|
|
nsString& theStr=aToken->GetStringValueXXX();
|
|
PRUnichar theChar=theStr.CharAt(0);
|
|
CToken *theToken=0;
|
|
|
|
if((kHashsign!=theChar) && (-1==nsHTMLEntities::EntityToUnicode(theStr))){
|
|
|
|
//before we just toss this away as a bogus entity, let's check...
|
|
CNamedEntity *theEntity=mBodyContext->GetEntity(theStr);
|
|
if(theEntity) {
|
|
theToken=(CTextToken*)mTokenAllocator->CreateTokenOfType(eToken_text,eHTMLTag_text,theEntity->mValue);
|
|
}
|
|
else {
|
|
//if you're here we have a bogus entity.
|
|
//convert it into a text token.
|
|
theToken=(CTextToken*)mTokenAllocator->CreateTokenOfType(eToken_text,eHTMLTag_text,NS_ConvertToString("&"));
|
|
|
|
}
|
|
result=HandleStartToken(theToken);
|
|
}
|
|
else {
|
|
|
|
//add this code to fix bug 42629 (entities were getting dropped).
|
|
eHTMLTags theParent=mBodyContext->Last();
|
|
CElement* theElement=gElementTable->mElements[theParent];
|
|
if(theElement) {
|
|
nsCParserNode theNode(aToken,mLineNumber,0);
|
|
result=theElement->HandleStartToken(&theNode,eHTMLTag_text,mBodyContext,mSink);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/***********************************************************************************
|
|
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 COtherDTD::CanContain(PRInt32 aParent,PRInt32 aChild) const {
|
|
CElement *theParent=gElementTable->mElements[eHTMLTags(aParent)];
|
|
if(theParent) {
|
|
CElement *theChild=gElementTable->mElements[eHTMLTags(aChild)];
|
|
if(aChild) {
|
|
return theParent->CanContain(theChild,mBodyContext);
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
/**
|
|
* Give rest of world access to our tag enums, so that CanContain(), etc,
|
|
* become useful.
|
|
*/
|
|
NS_IMETHODIMP COtherDTD::StringTagToIntTag(nsString &aTag, PRInt32* aIntTag) const {
|
|
*aIntTag = nsHTMLTags::LookupTag(aTag);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP COtherDTD::IntTagToStringTag(PRInt32 aIntTag, nsString& aTag) const {
|
|
aTag.AssignWithConversion(nsHTMLTags::GetStringValue((nsHTMLTag)aIntTag));
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP COtherDTD::ConvertEntityToUnicode(const nsString& aEntity, PRInt32* aUnicode) const {
|
|
*aUnicode = nsHTMLEntities::EntityToUnicode(aEntity);
|
|
return NS_OK;
|
|
}
|
|
|
|
/**
|
|
* This method is called to determine whether or not
|
|
* the given childtag is a block element.
|
|
*
|
|
* @update gess 6June2000
|
|
* @param aChildID -- tag id of child
|
|
* @param aParentID -- tag id of parent (or eHTMLTag_unknown)
|
|
* @return PR_TRUE if this tag is a block tag
|
|
*/
|
|
PRBool COtherDTD::IsBlockElement(PRInt32 aChildID,PRInt32 aParentID) const {
|
|
PRBool result=PR_FALSE;
|
|
|
|
if(gElementTable) {
|
|
CElement *theElement=gElementTable->GetElement((eHTMLTags)aChildID);
|
|
result = (theElement) ? theElement->IsBlockElement((eHTMLTags)aParentID) : PR_FALSE;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* This method is called to determine whether or not
|
|
* the given childtag is an inline element.
|
|
*
|
|
* @update gess 6June2000
|
|
* @param aChildID -- tag id of child
|
|
* @param aParentID -- tag id of parent (or eHTMLTag_unknown)
|
|
* @return PR_TRUE if this tag is an inline element
|
|
*/
|
|
PRBool COtherDTD::IsInlineElement(PRInt32 aChildID,PRInt32 aParentID) const {
|
|
PRBool result=PR_FALSE;
|
|
|
|
if(gElementTable) {
|
|
CElement *theElement=gElementTable->GetElement((eHTMLTags)aChildID);
|
|
result = (theElement) ? theElement->IsInlineElement((eHTMLTags)aParentID) : PR_FALSE;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* 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 COtherDTD::IsContainer(PRInt32 aTag) const {
|
|
return gElementTable->mElements[eHTMLTags(aTag)]->IsContainer();
|
|
}
|
|
|
|
|
|
/**
|
|
* Retrieve the preferred tokenizer for use by this DTD.
|
|
* @update gess12/28/98
|
|
* @param none
|
|
* @return ptr to tokenizer
|
|
*/
|
|
nsresult COtherDTD::GetTokenizer(nsITokenizer*& aTokenizer) {
|
|
nsresult result=NS_OK;
|
|
if(!mTokenizer) {
|
|
result=NS_NewHTMLTokenizer(&mTokenizer,mDTDMode,mDocType,mParserCommand);
|
|
}
|
|
aTokenizer=mTokenizer;
|
|
return result;
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
* @update gess5/18/98
|
|
* @param
|
|
* @return
|
|
*/
|
|
nsresult COtherDTD::WillResumeParse(void) {
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: COtherDTD::WillResumeParse(), this=%p\n", this));
|
|
|
|
nsresult result=(mSink) ? mSink->WillResume() : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: COtherDTD::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 COtherDTD::WillInterruptParse(void){
|
|
|
|
STOP_TIMER();
|
|
MOZ_TIMER_DEBUGLOG(("Stop: Parse Time: COtherDTD::WillInterruptParse(), this=%p\n", this));
|
|
|
|
nsresult result=(mSink) ? mSink->WillInterrupt() : NS_OK;
|
|
|
|
MOZ_TIMER_DEBUGLOG(("Start: Parse Time: COtherDTD::WillInterruptParse(), this=%p\n", this));
|
|
START_TIMER();
|
|
|
|
return result;
|
|
}
|
|
|
|
// CTransitionalDTD is a subclass of COtherDTD that defaults to transitional mode.
|
|
// Used by the editor
|
|
|
|
CTransitionalDTD::CTransitionalDTD()
|
|
{
|
|
if (mBodyContext) mBodyContext->mFlags.mTransitional = PR_TRUE;
|
|
}
|
|
|
|
CTransitionalDTD::~CTransitionalDTD() {}
|
|
|