125 lines
3.9 KiB
C++
125 lines
3.9 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 License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/**
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* MODULE NOTES:
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* @update gess 4/1/98
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*
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*/
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#ifndef __nsExpatTokenizer
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#define __nsExpatTokenizer
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#include "nsISupports.h"
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#include "nsHTMLTokenizer.h"
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#include "prtypes.h"
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// Enable unicode characters in expat.
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#define UNICODE
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#include "xmlparse.h"
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#define NS_EXPATTOKENIZER_IID \
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{0x483836aa, 0xcabe, 0x11d2, { 0xab, 0xcb, 0x0, 0x10, 0x4b, 0x98, 0x3f, 0xd4 }}
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/***************************************************************
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Notes:
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***************************************************************/
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#if defined(XP_PC)
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#pragma warning( disable : 4275 )
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#endif
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CLASS_EXPORT_HTMLPARS nsExpatTokenizer : public nsHTMLTokenizer {
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public:
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nsExpatTokenizer();
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virtual ~nsExpatTokenizer();
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NS_DECL_ISUPPORTS
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/* nsITokenizer methods */
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virtual nsresult ConsumeToken(nsScanner& aScanner);
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virtual void FrontloadMisplacedContent(nsDeque& aDeque);
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protected:
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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 *aBuffer, PRUint32 aLength);
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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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void PushXMLErrorToken(const char *aBuffer, PRUint32 aLength);
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void SetErrorContextInfo(nsParserError* aError, PRUint32 aByteIndex,
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const char* aSourceBuffer, PRUint32 aLength);
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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 HandleComment(void *userData, const XML_Char *name);
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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 int 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 int HandleUnknownEncoding(void *encodingHandlerData,
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const XML_Char *name,
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XML_Encoding *info);
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static nsresult OpenInputStream(nsString2& aURLStr,
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nsIInputStream*& in);
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static nsresult LoadStream(nsIInputStream* in,
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PRUnichar* &uniBuf, PRUint32 &retLen);
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XML_Parser mExpatParser;
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PRUint32 mBytesParsed;
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PRBool mSeenError;
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};
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extern NS_HTMLPARS nsresult NS_Expat_Tokenizer(nsIDTD** aInstancePtrResult);
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#endif
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