1e6fe5a7f5
Harishd's Changes: Fix for bugs 2749 - Tweaked strict comment handling, i.e., <!------> is now treated as an illegal comment in strict mode 16934 - Rectifed reporting of JS line error when a newline is found within a tag. 15204 - Made TEXTAREA content to reflect the source document. 11979, 16826 - Stoping the parser properly on receiving the stop-error message. 17594 - Added code to parse <!DOCTYPE> content correctly. 17496 - Building up the stack for orphaned OPTIONs r=rickg Rickg's Changes: rickg will be posting comments on his changes by 11/12/99. r=harishd git-svn-id: svn://10.0.0.236/trunk@53402 18797224-902f-48f8-a5cc-f745e15eee43
310 lines
9.0 KiB
C++
310 lines
9.0 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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/**
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* MODULE NOTES:
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* @update gess 4/8/98
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*
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*
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*/
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#ifndef __NS_EXPAT_DTD
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#define __NS_EXPAT_DTD
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#include "nsIDTD.h"
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#include "nsITokenizer.h"
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#include "nsISupports.h"
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#include "nsHTMLTokens.h"
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#include "nshtmlpars.h"
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#include "nsVoidArray.h"
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#include "nsDeque.h"
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#include "nsIContentSink.h"
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#include "xmlparse.h"
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#define NS_EXPAT_DTD_IID \
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{0x5ad4b431, 0xcabb, 0x11d2, \
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{0xab, 0xcb, 0x0, 0x10, 0x4b, 0x98, 0x3f, 0xd4}}
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class nsIDTDDebug;
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class nsIParserNode;
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class nsParser;
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class nsExpatDTD : public nsIDTD {
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public:
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NS_DECL_ISUPPORTS
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/**
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*
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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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nsExpatDTD();
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/**
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*
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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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virtual ~nsExpatDTD();
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virtual const nsIID& GetMostDerivedIID(void) const;
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/**
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* Call this method if you want the DTD to construct a clone 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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virtual nsresult CreateNewInstance(nsIDTD** aInstancePtrResult);
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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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virtual eAutoDetectResult CanParse(nsString& aContentType, nsString& aCommand, nsString& aBuffer, PRInt32 aVersion);
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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 gess5/18/98
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* @param aFilename is the name of the file being parsed.
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* @return error code (almost always 0)
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*/
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NS_IMETHOD WillBuildModel( nsString& aFilename,
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PRBool aNotifySink,
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nsString& aSourceType,
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eParseMode aParseMode,
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nsString& aString,
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nsIContentSink* aSink=0);
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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 gess5/18/98
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* @param aFilename is the name of the file being parsed.
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* @return error code (almost always 0)
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*/
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NS_IMETHOD BuildModel(nsIParser* aParser,nsITokenizer* aTokenizer,nsITokenObserver* anObserver=0,nsIContentSink* aSink=0);
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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 gess5/18/98
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* @param anErrorCode contans the last error that occured
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* @return error code
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*/
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NS_IMETHOD DidBuildModel(nsresult anErrorCode,PRBool aNotifySink,nsIParser* aParser,nsIContentSink* aSink=0);
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/**
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*
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* @update gess 3/25/98
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* @param aToken -- token object to be put into content model
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* @return 0 if all is well; non-zero is an error
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*/
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NS_IMETHOD HandleToken(CToken* aToken,nsIParser* aParser);
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/**
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* This method causes all tokens to be dispatched to the given tag handler.
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*
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* @update gess 3/25/98
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* @param aHandler -- object to receive subsequent tokens...
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* @return error code (usually 0)
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*/
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NS_IMETHOD CaptureTokenPump(nsITagHandler* aHandler);
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/**
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* This method releases the token-pump capture obtained in CaptureTokenPump()
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*
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* @update gess 3/25/98
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* @param aHandler -- object that received tokens...
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* @return error code (usually 0)
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*/
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NS_IMETHOD ReleaseTokenPump(nsITagHandler* aHandler);
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/**
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*
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* @update gess12/28/98
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* @param
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* @return
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*/
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nsITokenizer* GetTokenizer(void);
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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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NS_IMETHOD WillResumeParse(void);
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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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NS_IMETHOD WillInterruptParse(void);
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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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virtual PRBool Verify(nsString& aURLRef,nsIParser* aParser);
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/**
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* Set this to TRUE if you want the DTD to verify its
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* 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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virtual void SetVerification(PRBool aEnable);
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/**
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* This method is called to determine whether or not a tag
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* of one type can contain a tag of another type.
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*
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* @update gess 3/25/98
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* @param aParent -- int tag of parent container
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* @param aChild -- int tag of child container
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* @return PR_TRUE if parent can contain child
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*/
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virtual PRBool CanContain(PRInt32 aParent,PRInt32 aChild) const;
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/**
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* This method gets called to determine whether a given
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* tag is itself a container
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*
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* @update gess 3/25/98
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* @param aTag -- tag to test for containership
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* @return PR_TRUE if given tag can contain other tags
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*/
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virtual PRBool IsContainer(PRInt32 aTag) const;
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/**
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* Use this id you want to stop the building content model
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* --------------[ Sets DTD to STOP mode ]----------------
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* It's recommended to use this method in accordance with
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* the parser's terminate() method.
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*
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* @update harishd 07/22/99
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* @param
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* @return
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*/
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virtual nsresult Terminate(void);
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/**
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* Give rest of world access to our tag enums, so that CanContain(), etc,
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* become useful.
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*/
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NS_IMETHOD StringTagToIntTag(nsString &aTag, PRInt32* aIntTag) const;
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NS_IMETHOD IntTagToStringTag(PRInt32 aIntTag, nsString& aTag) const;
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NS_IMETHOD ConvertEntityToUnicode(const nsString& aEntity, PRInt32* aUnicode) const;
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/**
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* Retrieve a ptr to the global token recycler...
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* @update gess8/4/98
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* @return ptr to recycler (or null)
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*/
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virtual nsITokenRecycler* GetTokenRecycler(void);
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/**
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* Parse an XML buffer using expat
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* @update nra 2/29/99
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* @return NS_ERROR_FAILURE if expat encounters an error, else NS_OK
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*/
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nsresult ParseXMLBuffer(const char *buffer);
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protected:
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/**
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* Sets up the callbacks for the expat parser
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* @update nra 2/24/99
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* @param none
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* @return none
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*/
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void SetupExpatCallbacks(void);
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/* The callback handlers that get called from the expat parser */
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static void HandleStartElement(void *userData, const XML_Char *name, const XML_Char **atts);
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static void HandleEndElement(void *userData, const XML_Char *name);
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static void HandleCharacterData(void *userData, const XML_Char *s, int len);
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static void HandleProcessingInstruction(void *userData,
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const XML_Char *target,
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const XML_Char *data);
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static void HandleDefault(void *userData, const XML_Char *s, int len);
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static void HandleUnparsedEntityDecl(void *userData,
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const XML_Char *entityName,
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const XML_Char *base,
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const XML_Char *systemId,
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const XML_Char *publicId,
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const XML_Char *notationName);
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static void HandleNotationDecl(void *userData,
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const XML_Char *notationName,
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const XML_Char *base,
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const XML_Char *systemId,
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const XML_Char *publicId);
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static void HandleExternalEntityRef(XML_Parser parser,
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const XML_Char *openEntityNames,
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const XML_Char *base,
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const XML_Char *systemId,
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const XML_Char *publicId);
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static void HandleUnknownEncoding(void *encodingHandlerData,
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const XML_Char *name,
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XML_Encoding *info);
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XML_Parser mExpatParser;
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nsParser* mParser;
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nsIContentSink* mSink;
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nsString mFilename;
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PRInt32 mLineNumber;
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nsITokenizer* mTokenizer;
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};
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extern NS_HTMLPARS nsresult NS_New_Expat_DTD(nsIDTD** aInstancePtrResult);
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#endif
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