gecko/parser/htmlparser/public/nsIDTD.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsIDTD_h___
#define nsIDTD_h___
/**
* MODULE NOTES:
* @update gess 7/20/98
*
* This interface defines standard interface for DTD's. Note that this
* isn't HTML specific. DTD's have several functions within the parser
* system:
* 1) To coordinate the consumption of an input stream via the
* parser
* 2) To serve as proxy to represent the containment rules of the
* underlying document
* 3) To offer autodetection services to the parser (mainly for doc
* conversion)
* */
#include "nsISupports.h"
#include "nsStringGlue.h"
#include "prtypes.h"
#include "nsITokenizer.h"
#define NS_IDTD_IID \
{ 0xcc374204, 0xcea2, 0x41a2, \
{ 0xb2, 0x7f, 0x83, 0x75, 0xe2, 0xcf, 0x97, 0xcf } }
enum eAutoDetectResult {
eUnknownDetect,
eValidDetect,
ePrimaryDetect,
eInvalidDetect
};
enum nsDTDMode {
eDTDMode_unknown = 0,
eDTDMode_quirks, //pre 4.0 versions
eDTDMode_almost_standards,
eDTDMode_full_standards,
eDTDMode_autodetect,
eDTDMode_fragment
};
class nsIParser;
class CToken;
class nsIURI;
class nsIContentSink;
class CParserContext;
class nsIDTD : public nsISupports
{
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_IDTD_IID)
NS_IMETHOD WillBuildModel(const CParserContext& aParserContext,
nsITokenizer* aTokenizer,
nsIContentSink* aSink) = 0;
/**
* Called by the parser after the parsing process has concluded
* @update gess5/18/98
* @param anErrorCode - contains error code resulting from parse process
* @return
*/
NS_IMETHOD DidBuildModel(nsresult anErrorCode) = 0;
/**
* Called (possibly repeatedly) by the parser to parse tokens and construct
* the document model via the sink provided to WillBuildModel.
*
* @param aTokenizer - tokenizer providing the token stream to be parsed
* @param aCanInterrupt - informs the DTD whether the parser can handle
* interruptions of the model building process
* @param aCountLines - informs the DTD whether to count newlines
* (not wanted, e.g., when handling document.write)
* @param aCharsetPtr - address of an nsCString containing the charset
* that the DTD should use (pointer in case the DTD
* opts to ignore this parameter)
*/
NS_IMETHOD BuildModel(nsITokenizer* aTokenizer,
PRBool aCanInterrupt,
PRBool aCountLines,
const nsCString* aCharsetPtr) = 0;
/**
* This method is called to determine whether or not a tag of one
* type can contain a tag of another type.
*
* @update gess 3/25/98
* @param aParent -- int tag of parent container
* @param aChild -- int tag of child container
* @return PR_TRUE if parent can contain child
*/
NS_IMETHOD_(PRBool) CanContain(PRInt32 aParent,PRInt32 aChild) const = 0;
/**
* This method gets called to determine whether a given
* tag is itself a container
*
* @update gess 3/25/98
* @param aTag -- tag to test for containership
* @return PR_TRUE if given tag can contain other tags
*/
NS_IMETHOD_(PRBool) IsContainer(PRInt32 aTag) const = 0;
/**
* Use this id you want to stop the building content model
* --------------[ Sets DTD to STOP mode ]----------------
* It's recommended to use this method in accordance with
* the parser's terminate() method.
*
* @update harishd 07/22/99
* @param
* @return
*/
NS_IMETHOD_(void) Terminate() = 0;
NS_IMETHOD_(PRInt32) GetType() = 0;
/**
* Call this method after calling WillBuildModel to determine what mode the
* DTD actually is using, as it may differ from aParserContext.mDTDMode.
*/
NS_IMETHOD_(nsDTDMode) GetMode() const = 0;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsIDTD, NS_IDTD_IID)
#define NS_DECL_NSIDTD \
NS_IMETHOD WillBuildModel( const CParserContext& aParserContext, nsITokenizer* aTokenizer, nsIContentSink* aSink);\
NS_IMETHOD DidBuildModel(nsresult anErrorCode);\
NS_IMETHOD BuildModel(nsITokenizer* aTokenizer, PRBool aCanInterrupt, PRBool aCountLines, const nsCString* aCharsetPtr);\
NS_IMETHOD_(PRBool) CanContain(PRInt32 aParent,PRInt32 aChild) const;\
NS_IMETHOD_(PRBool) IsContainer(PRInt32 aTag) const;\
NS_IMETHOD_(void) Terminate();\
NS_IMETHOD_(PRInt32) GetType();\
NS_IMETHOD_(nsDTDMode) GetMode() const;
#endif /* nsIDTD_h___ */