265 lines
8.0 KiB
C++
265 lines
8.0 KiB
C++
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/* -*- 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_WELLFORMED_DTD
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#define __NS_WELLFORMED_DTD
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#include "nsIDTD.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 "nsIContentSink.h"
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#define NS_WELLFORMED_DTD_IID \
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{0xa39c6bfd, 0x15f0, 0x11d2, \
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{0x80, 0x41, 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 nsHTMLTokenizer;
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class CWellFormedDTD : 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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CWellFormedDTD();
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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 ~CWellFormedDTD();
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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(CParserContext& aParserContext,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 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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NS_IMETHOD WillBuildModel( const CParserContext& aParserContext,nsIContentSink* aSink);
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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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*
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* @update gess 12/20/99
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* @param ptr-ref to (out) tokenizer
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* @return nsresult
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*/
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NS_IMETHOD GetTokenizer(nsITokenizer*& aTokenizer);
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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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* 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 nsTokenAllocator* GetTokenAllocator(void);
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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(nsIParser* aParser=nsnull);
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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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virtual PRBool IsBlockElement(PRInt32 aTagID,PRInt32 aParentID) const {return PR_FALSE;}
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virtual PRBool IsInlineElement(PRInt32 aTagID,PRInt32 aParentID) const {return PR_FALSE;}
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protected:
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/*
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NS_IMETHODIMP ConsumeTag(PRUnichar aChar,nsScanner& aScanner,CToken*& aToken);
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NS_IMETHODIMP ConsumeStartTag(PRUnichar aChar,nsScanner& aScanner,CToken*& aToken);
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NS_IMETHODIMP ConsumeText(const nsString& aString,nsScanner& aScanner,CToken*& aToken);
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NS_IMETHODIMP ConsumeNewline(PRUnichar aChar,nsScanner& aScanner,CToken*& aToken);
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NS_IMETHODIMP ConsumeWhitespace(PRUnichar aChar,nsScanner& aScanner,CToken*& aToken);
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NS_IMETHODIMP ConsumeEscapedContent(PRUnichar aChar,nsScanner& aScanner,CToken*& aToken);
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NS_IMETHODIMP ConsumeComment(PRUnichar aChar,nsScanner& aScanner,CToken*& aToken);
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NS_IMETHODIMP ConsumeEntity(PRUnichar aChar,nsScanner& aScanner,CToken*& aToken);
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NS_IMETHODIMP ConsumeAttributes(PRUnichar aChar,nsScanner& aScanner,CStartToken* aToken);
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*/
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nsresult HandleStartToken(CToken* aToken);
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nsresult HandleEndToken(CToken* aToken);
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nsresult HandleCommentToken(CToken* aToken);
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nsresult HandleErrorToken(CToken* aToken);
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nsresult HandleDocTypeDeclToken(CToken* aToken);
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nsresult HandleLeafToken(CToken* aToken);
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nsresult HandleProcessingInstructionToken(CToken* aToken);
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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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nsHTMLTokenizer* mTokenizer;
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nsresult mDTDState;
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};
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extern NS_HTMLPARS nsresult NS_NewWellFormed_DTD(nsIDTD** aInstancePtrResult);
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#endif
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