/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: NPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Netscape 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/NPL/ * * 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 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 NPL, 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 NPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ /** * MODULE NOTES: * @update gess 4/1/98 * */ #ifndef __nsExpatTokenizer #define __nsExpatTokenizer #include "nsISupports.h" #include "nsHTMLTokenizer.h" #include "prtypes.h" // Enable unicode characters in expat. #define UNICODE #include "xmlparse.h" #define NS_EXPATTOKENIZER_IID \ {0x483836aa, 0xcabe, 0x11d2, { 0xab, 0xcb, 0x0, 0x10, 0x4b, 0x98, 0x3f, 0xd4 }} // {575C063A-AE9C-11d3-B9FD-001083023C0E} #define NS_EXPATTOKENIZER_CID \ { 0x575c063a, 0xae9c, 0x11d3, \ {0xb9, 0xfd, 0x0, 0x10, 0x83, 0x2, 0x3c, 0xe}} typedef struct _XMLParserState XMLParserState; /*************************************************************** Notes: ***************************************************************/ #if defined(XP_PC) #pragma warning( disable : 4275 ) #endif #ifdef __cplusplus extern "C" { #endif /* The callback handlers that get called from the expat parser */ void Tokenizer_HandleStartElement(void *userData, const XML_Char *name, const XML_Char **atts); void Tokenizer_HandleEndElement(void *userData, const XML_Char *name); void Tokenizer_HandleCharacterData(void *userData, const XML_Char *s, int len); void Tokenizer_HandleComment(void *userData, const XML_Char *name); void Tokenizer_HandleProcessingInstruction(void *userData, const XML_Char *target, const XML_Char *data); void Tokenizer_HandleDefault(void *userData, const XML_Char *s, int len); void Tokenizer_HandleStartCdataSection(void *userData); void Tokenizer_HandleEndCdataSection(void *userData); void Tokenizer_HandleUnparsedEntityDecl(void *userData, const XML_Char *entityName, const XML_Char *base, const XML_Char *systemId, const XML_Char *publicId, const XML_Char *notationName); void Tokenizer_HandleNotationDecl(void *userData, const XML_Char *notationName, const XML_Char *base, const XML_Char *systemId, const XML_Char *publicId); int Tokenizer_HandleExternalEntityRef(XML_Parser parser, const XML_Char *openEntityNames, const XML_Char *base, const XML_Char *systemId, const XML_Char *publicId); int Tokenizer_HandleUnknownEncoding(void *encodingHandlerData, const XML_Char *name, XML_Encoding *info); void Tokenizer_HandleStartDoctypeDecl(void *userData, const XML_Char *doctypeName); void Tokenizer_HandleEndDoctypeDecl(void *userData); #ifdef __cplusplus } #endif class nsExpatTokenizer : public nsHTMLTokenizer { public: nsExpatTokenizer(nsString* aURL = nsnull); virtual ~nsExpatTokenizer(); virtual const nsIID& GetCID(); static const nsIID& GetIID(); NS_DECL_ISUPPORTS /* nsITokenizer methods */ virtual nsresult WillTokenize(PRBool aIsFinalChunk,nsTokenAllocator* aTokenAllocator); virtual nsresult ConsumeToken(nsScanner& aScanner,PRBool& aFlushTokens); virtual nsresult DidTokenize(PRBool aIsFinalChunk); virtual void FrontloadMisplacedContent(nsDeque& aDeque); protected: /** * Parse an XML buffer using expat * @update nra 2/29/99 * @return NS_ERROR_FAILURE if expat encounters an error, else NS_OK */ nsresult ParseXMLBuffer(const char *aBuffer, PRUint32 aLength, PRBool aIsFinal=PR_FALSE); /** * Sets up the callbacks and user data for the expat parser * @update nra 2/24/99 * @param none * @return none */ void SetupExpatParser(void); // Propagate XML errors to the content sink nsresult PushXMLErrorTokens(const char *aBuffer, PRUint32 aLength, PRBool aIsFinal); nsresult AddErrorMessageTokens(nsParserError* aError); void GetLine(const char* aSourceBuffer, PRUint32 aLength, PRUint32 aByteIndex, nsString& aLine); // Load up an external stream to get external entity information static nsresult OpenInputStream(const XML_Char* aURLStr, const XML_Char* aBaseURL, nsIInputStream** in, nsString* aAbsURL); static nsresult LoadStream(nsIInputStream* in, PRUnichar* &uniBuf, PRUint32 &retLen); /* The callback handlers that get called from the expat parser */ friend void Tokenizer_HandleStartElement(void *userData, const XML_Char *name, const XML_Char **atts); friend void Tokenizer_HandleEndElement(void *userData, const XML_Char *name); friend void Tokenizer_HandleCharacterData(void *userData, const XML_Char *s, int len); friend void Tokenizer_HandleComment(void *userData, const XML_Char *name); friend void Tokenizer_HandleProcessingInstruction(void *userData, const XML_Char *target, const XML_Char *data); friend void Tokenizer_HandleDefault(void *userData, const XML_Char *s, int len); friend void Tokenizer_HandleStartCdataSection(void *userData); friend void Tokenizer_HandleEndCdataSection(void *userData); friend void Tokenizer_HandleUnparsedEntityDecl(void *userData, const XML_Char *entityName, const XML_Char *base, const XML_Char *systemId, const XML_Char *publicId, const XML_Char *notationName); friend void Tokenizer_HandleNotationDecl(void *userData, const XML_Char *notationName, const XML_Char *base, const XML_Char *systemId, const XML_Char *publicId); friend int Tokenizer_HandleExternalEntityRef(XML_Parser parser, const XML_Char *openEntityNames, const XML_Char *base, const XML_Char *systemId, const XML_Char *publicId); friend int Tokenizer_HandleUnknownEncoding(void *encodingHandlerData, const XML_Char *name, XML_Encoding *info); friend void Tokenizer_HandleStartDoctypeDecl(void *userData, const XML_Char *doctypeName); friend void Tokenizer_HandleEndDoctypeDecl(void *userData); XML_Parser mExpatParser; PRUint32 mBytesParsed; nsString mLastLine; XMLParserState* mState; }; #endif