/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* vim: set ts=2 sw=2 et tw=78: */ /* ***** 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 NS_IPARSER___ #define NS_IPARSER___ /** * MODULE NOTES: * * This class defines the iparser interface. This XPCOM * inteface is all that parser clients ever need to see. * **/ #include "nsISupports.h" #include "nsIStreamListener.h" #include "nsIDTD.h" #include "nsStringGlue.h" #include "nsTArray.h" #include "nsIAtom.h" #define NS_IPARSER_IID \ { 0x3db442c2, 0x8a4d, 0x4ce4, \ { 0x86, 0x58, 0x48, 0xee, 0x55, 0x4b, 0xbb, 0xd4 } } // {41421C60-310A-11d4-816F-000064657374} #define NS_IDEBUG_DUMP_CONTENT_IID \ { 0x41421c60, 0x310a, 0x11d4, \ { 0x81, 0x6f, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74 } } class nsIContentSink; class nsIRequestObserver; class nsIParserFilter; class nsString; class nsIURI; class nsIChannel; enum eParserCommands { eViewNormal, eViewSource, eViewFragment, eViewErrors }; enum eParserDocType { ePlainText = 0, eXML, eHTML_Quirks, eHTML_Strict }; // define Charset source constants // note: the value order defines the priority; higher numbers take priority #define kCharsetUninitialized 0 #define kCharsetFromWeakDocTypeDefault 1 #define kCharsetFromUserDefault 2 #define kCharsetFromDocTypeDefault 3 #define kCharsetFromCache 4 #define kCharsetFromParentFrame 5 #define kCharsetFromBookmarks 6 #define kCharsetFromAutoDetection 7 #define kCharsetFromHintPrevDoc 8 #define kCharsetFromMetaPrescan 9 // this one and smaller: HTML5 Tentative #define kCharsetFromMetaTag 10 // this one and greater: HTML5 Confident #define kCharsetFromByteOrderMark 11 #define kCharsetFromChannel 12 #define kCharsetFromOtherComponent 13 // Levels below here will be forced onto childframes too #define kCharsetFromParentForced 14 #define kCharsetFromUserForced 15 #define kCharsetFromPreviousLoading 16 enum eStreamState {eNone,eOnStart,eOnDataAvail,eOnStop}; /** * FOR DEBUG PURPOSE ONLY * * Use this interface to query objects that contain content information. * Ex. Parser can trigger dump content by querying the sink that has * access to the content. * * @update harishd 05/25/00 */ class nsIDebugDumpContent : public nsISupports { public: NS_DECLARE_STATIC_IID_ACCESSOR(NS_IDEBUG_DUMP_CONTENT_IID) NS_IMETHOD DumpContentModel()=0; }; NS_DEFINE_STATIC_IID_ACCESSOR(nsIDebugDumpContent, NS_IDEBUG_DUMP_CONTENT_IID) /** * This class defines the iparser interface. This XPCOM * inteface is all that parser clients ever need to see. */ class nsIParser : public nsISupports { public: NS_DECLARE_STATIC_IID_ACCESSOR(NS_IPARSER_IID) /** * Select given content sink into parser for parser output * @update gess5/11/98 * @param aSink is the new sink to be used by parser * @return */ NS_IMETHOD_(void) SetContentSink(nsIContentSink* aSink)=0; /** * retrieve the sink set into the parser * @update gess5/11/98 * @return current sink */ NS_IMETHOD_(nsIContentSink*) GetContentSink(void)=0; /** * Call this method once you've created a parser, and want to instruct it * about the command which caused the parser to be constructed. For example, * this allows us to select a DTD which can do, say, view-source. * * @update gess 3/25/98 * @param aCommand -- ptrs to string that contains command * @return nada */ NS_IMETHOD_(void) GetCommand(nsCString& aCommand)=0; NS_IMETHOD_(void) SetCommand(const char* aCommand)=0; NS_IMETHOD_(void) SetCommand(eParserCommands aParserCommand)=0; /** * Call this method once you've created a parser, and want to instruct it * about what charset to load * * @update ftang 4/23/99 * @param aCharset- the charest of a document * @param aCharsetSource- the soure of the chares * @return nada */ NS_IMETHOD_(void) SetDocumentCharset(const nsACString& aCharset, PRInt32 aSource)=0; NS_IMETHOD_(void) GetDocumentCharset(nsACString& oCharset, PRInt32& oSource)=0; NS_IMETHOD_(void) SetParserFilter(nsIParserFilter* aFilter) = 0; /** * Get the channel associated with this parser * @update harishd,gagan 07/17/01 * @param aChannel out param that will contain the result * @return NS_OK if successful */ NS_IMETHOD GetChannel(nsIChannel** aChannel) = 0; /** * Get the DTD associated with this parser * @update vidur 9/29/99 * @param aDTD out param that will contain the result * @return NS_OK if successful, NS_ERROR_FAILURE for runtime error */ NS_IMETHOD GetDTD(nsIDTD** aDTD) = 0; /** * Get the nsIStreamListener for this parser * @param aDTD out param that will contain the result * @return NS_OK if successful */ NS_IMETHOD GetStreamListener(nsIStreamListener** aListener) = 0; /************************************************************************** * Parse methods always begin with an input source, and perform * conversions until you wind up being emitted to the given contentsink * (which may or may not be a proxy for the NGLayout content model). ************************************************************************/ // Call this method to resume the parser from an unblocked state. // This can happen, for example, if parsing was interrupted and then the // consumer needed to restart the parser without waiting for more data. // This also happens after loading scripts, which unblock the parser in // order to process the output of document.write() and then need to // continue on with the page load on an enabled parser. NS_IMETHOD ContinueInterruptedParsing() = 0; // Stops parsing temporarily. NS_IMETHOD_(void) BlockParser() = 0; // Open up the parser for tokenization, building up content // model..etc. However, this method does not resume parsing // automatically. It's the callers' responsibility to restart // the parsing engine. NS_IMETHOD_(void) UnblockParser() = 0; NS_IMETHOD_(PRBool) IsParserEnabled() = 0; NS_IMETHOD_(PRBool) IsComplete() = 0; NS_IMETHOD Parse(nsIURI* aURL, nsIRequestObserver* aListener = nsnull, void* aKey = 0, nsDTDMode aMode = eDTDMode_autodetect) = 0; NS_IMETHOD Parse(const nsAString& aSourceBuffer, void* aKey, const nsACString& aMimeType, PRBool aLastCall, nsDTDMode aMode = eDTDMode_autodetect) = 0; // Return a key, suitable for passing into one of the Parse methods above, // that will cause this parser to use the root context. NS_IMETHOD_(void *) GetRootContextKey() = 0; NS_IMETHOD Terminate(void) = 0; /** * This method gets called when you want to parse a fragment of HTML or XML * surrounded by the context |aTagStack|. It requires that the parser have * been given a fragment content sink. * * @param aSourceBuffer The XML or HTML that hasn't been parsed yet. * @param aKey The key used by the parser. * @param aTagStack The context of the source buffer. * @param aXMLMode Whether this is XML or HTML * @param aContentType The content-type of this document. * @param aMode The DTDMode that the parser should parse this fragment in. * @return Success or failure. */ NS_IMETHOD ParseFragment(const nsAString& aSourceBuffer, void* aKey, nsTArray& aTagStack, PRBool aXMLMode, const nsACString& aContentType, nsDTDMode aMode = eDTDMode_autodetect) = 0; NS_IMETHOD ParseFragment(const nsAString& aSourceBuffer, nsISupports* aTargetNode, nsIAtom* aContextLocalName, PRInt32 aContextNamespace, PRBool aQuirks) = 0; /** * This method gets called when the tokens have been consumed, and it's time * to build the model via the content sink. * @update gess5/11/98 * @return error code -- 0 if model building went well . */ NS_IMETHOD BuildModel(void) = 0; /** * Call this method to cancel any pending parsing events. * Parsing events may be pending if all of the document's content * has been passed to the parser but the parser has been interrupted * because processing the tokens took too long. * * @update kmcclusk 05/18/01 * @return NS_OK if succeeded else ERROR. */ NS_IMETHOD CancelParsingEvents() = 0; virtual void Reset() = 0; /** * True if the parser can currently be interrupted. Returns false when * parsing for example document.write or innerHTML. */ virtual PRBool CanInterrupt() = 0; /** * True if the insertion point (per HTML5) is defined. */ virtual PRBool IsInsertionPointDefined() = 0; /** * Call immediately before starting to evaluate a parser-inserted script. */ virtual void BeginEvaluatingParserInsertedScript() = 0; /** * Call immediately after having evaluated a parser-inserted script. */ virtual void EndEvaluatingParserInsertedScript() = 0; /** * Marks the HTML5 parser as not a script-created parser. */ virtual void MarkAsNotScriptCreated() = 0; /** * True if this is a script-created HTML5 parser. */ virtual PRBool IsScriptCreated() = 0; }; NS_DEFINE_STATIC_IID_ACCESSOR(nsIParser, NS_IPARSER_IID) /* ===========================================================* Some useful constants... * ===========================================================*/ #include "prtypes.h" #include "nsError.h" #define NS_ERROR_HTMLPARSER_EOF NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1000) #define NS_ERROR_HTMLPARSER_UNKNOWN NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1001) #define NS_ERROR_HTMLPARSER_CANTPROPAGATE NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1002) #define NS_ERROR_HTMLPARSER_CONTEXTMISMATCH NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1003) #define NS_ERROR_HTMLPARSER_BADFILENAME NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1004) #define NS_ERROR_HTMLPARSER_BADURL NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1005) #define NS_ERROR_HTMLPARSER_INVALIDPARSERCONTEXT NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1006) #define NS_ERROR_HTMLPARSER_INTERRUPTED NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1007) #define NS_ERROR_HTMLPARSER_BLOCK NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1008) #define NS_ERROR_HTMLPARSER_BADTOKENIZER NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1009) #define NS_ERROR_HTMLPARSER_BADATTRIBUTE NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1010) #define NS_ERROR_HTMLPARSER_UNRESOLVEDDTD NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1011) #define NS_ERROR_HTMLPARSER_MISPLACEDTABLECONTENT NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1012) #define NS_ERROR_HTMLPARSER_BADDTD NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1013) #define NS_ERROR_HTMLPARSER_BADCONTEXT NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1014) #define NS_ERROR_HTMLPARSER_STOPPARSING NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1015) #define NS_ERROR_HTMLPARSER_UNTERMINATEDSTRINGLITERAL NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1016) #define NS_ERROR_HTMLPARSER_HIERARCHYTOODEEP NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1017) #define NS_ERROR_HTMLPARSER_FAKE_ENDTAG NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1018) #define NS_ERROR_HTMLPARSER_INVALID_COMMENT NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_HTMLPARSER,1019) #define NS_ERROR_HTMLPARSER_CONTINUE NS_OK const PRUint32 kEOF = NS_ERROR_HTMLPARSER_EOF; const PRUint32 kUnknownError = NS_ERROR_HTMLPARSER_UNKNOWN; const PRUint32 kCantPropagate = NS_ERROR_HTMLPARSER_CANTPROPAGATE; const PRUint32 kContextMismatch = NS_ERROR_HTMLPARSER_CONTEXTMISMATCH; const PRUint32 kBadFilename = NS_ERROR_HTMLPARSER_BADFILENAME; const PRUint32 kBadURL = NS_ERROR_HTMLPARSER_BADURL; const PRUint32 kInvalidParserContext = NS_ERROR_HTMLPARSER_INVALIDPARSERCONTEXT; const PRUint32 kBlocked = NS_ERROR_HTMLPARSER_BLOCK; const PRUint32 kBadStringLiteral = NS_ERROR_HTMLPARSER_UNTERMINATEDSTRINGLITERAL; const PRUint32 kHierarchyTooDeep = NS_ERROR_HTMLPARSER_HIERARCHYTOODEEP; const PRUint32 kFakeEndTag = NS_ERROR_HTMLPARSER_FAKE_ENDTAG; const PRUint32 kNotAComment = NS_ERROR_HTMLPARSER_INVALID_COMMENT; const PRUnichar kNewLine = '\n'; const PRUnichar kCR = '\r'; const PRUnichar kLF = '\n'; const PRUnichar kTab = '\t'; const PRUnichar kSpace = ' '; const PRUnichar kQuote = '"'; const PRUnichar kApostrophe = '\''; const PRUnichar kLessThan = '<'; const PRUnichar kGreaterThan = '>'; const PRUnichar kAmpersand = '&'; const PRUnichar kForwardSlash = '/'; const PRUnichar kBackSlash = '\\'; const PRUnichar kEqual = '='; const PRUnichar kMinus = '-'; const PRUnichar kPlus = '+'; const PRUnichar kExclamation = '!'; const PRUnichar kSemicolon = ';'; const PRUnichar kHashsign = '#'; const PRUnichar kAsterisk = '*'; const PRUnichar kUnderbar = '_'; const PRUnichar kComma = ','; const PRUnichar kLeftParen = '('; const PRUnichar kRightParen = ')'; const PRUnichar kLeftBrace = '{'; const PRUnichar kRightBrace = '}'; const PRUnichar kQuestionMark = '?'; const PRUnichar kLeftSquareBracket = '['; const PRUnichar kRightSquareBracket = ']'; const PRUnichar kNullCh = '\0'; #define NS_IPARSER_FLAG_UNKNOWN_MODE 0x00000000 #define NS_IPARSER_FLAG_QUIRKS_MODE 0x00000002 #define NS_IPARSER_FLAG_STRICT_MODE 0x00000004 #define NS_IPARSER_FLAG_AUTO_DETECT_MODE 0x00000010 #define NS_IPARSER_FLAG_VIEW_NORMAL 0x00000020 #define NS_IPARSER_FLAG_VIEW_SOURCE 0x00000040 #define NS_IPARSER_FLAG_VIEW_ERRORS 0x00000080 #define NS_IPARSER_FLAG_PLAIN_TEXT 0x00000100 #define NS_IPARSER_FLAG_XML 0x00000200 #define NS_IPARSER_FLAG_HTML 0x00000400 #define NS_IPARSER_FLAG_SCRIPT_ENABLED 0x00000800 #define NS_IPARSER_FLAG_FRAMES_ENABLED 0x00001000 #endif