2001-08-04 01:15:15 +04:00
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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 4/1/98
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*
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* This file contains the declarations for all the HTML specific token types that
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* our DTD's understand. In fact, the same set of token types are used for XML.
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* Currently we have tokens for text, comments, start and end tags, entities,
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* attributes, style, script and skipped content. Whitespace and newlines also
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* have their own token types, but don't count on them to stay forever.
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*
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* If you're looking for the html tags, they're in a file called nsHTMLTag.h/cpp.
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*
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* Most of the token types have a similar API. They have methods to get the type
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* of token (GetTokenType); those that represent HTML tags also have a method to
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* get type tag type (GetTypeID). In addition, most have a method that causes the
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* token to help in the parsing process called (Consume). We've also thrown in a
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* few standard debugging methods as well.
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*/
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#ifndef HTMLTOKENS_H
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#define HTMLTOKENS_H
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#include "nsToken.h"
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#include "nsHTMLTags.h"
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#include "nsParserError.h"
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#include "nsString.h"
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#include "nsSlidingString.h"
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class nsScanner;
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/*******************************************************************
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* This enum defines the set of token types that we currently support.
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*******************************************************************/
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enum eHTMLTokenTypes {
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eToken_unknown=0,
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eToken_start=1, eToken_end, eToken_comment, eToken_entity,
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eToken_whitespace, eToken_newline, eToken_text, eToken_attribute,
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eToken_script, eToken_style, eToken_skippedcontent, eToken_instruction,
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eToken_cdatasection, eToken_error, eToken_doctypeDecl, eToken_markupDecl,
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eToken_last //make sure this stays the last token...
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};
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enum eHTMLCategory {
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eHTMLCategory_unknown=0,
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eHTMLCategory_inline,
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eHTMLCategory_block,
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eHTMLCategory_blockAndInline,
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eHTMLCategory_list,
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eHTMLCategory_table,
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eHTMLCategory_tablepart,
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eHTMLCategory_tablerow,
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eHTMLCategory_tabledata,
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eHTMLCategory_head,
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eHTMLCategory_html,
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eHTMLCategory_body,
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eHTMLCategory_form,
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eHTMLCategory_options,
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eHTMLCategory_frameset,
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eHTMLCategory_text
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};
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nsresult ConsumeQuotedString(PRUnichar aChar,nsString& aString,nsScanner& aScanner);
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nsresult ConsumeAttributeText(PRUnichar aChar,nsString& aString,nsScanner& aScanner);
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2001-11-28 09:13:11 +03:00
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const PRUnichar* GetTagName(PRInt32 aTag);
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2001-08-04 01:15:15 +04:00
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//PRInt32 FindEntityIndex(nsString& aString,PRInt32 aCount=-1);
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/**
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* This declares the basic token type used in the HTML DTD's.
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* @update gess 3/25/98
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*/
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class CHTMLToken : public CToken {
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public:
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virtual ~CHTMLToken();
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CHTMLToken(eHTMLTags aTag);
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virtual eContainerInfo GetContainerInfo(void) const {return eFormUnknown;}
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virtual void SetContainerInfo(eContainerInfo aInfo) { }
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protected:
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};
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/**
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* This declares start tokens, which always take the form <xxxx>.
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* This class also knows how to consume related attributes.
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*
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* @update gess 3/25/98
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*/
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class CStartToken: public CHTMLToken {
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CTOKEN_IMPL_SIZEOF
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public:
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CStartToken(eHTMLTags aTag=eHTMLTag_unknown);
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CStartToken(const nsAReadableString& aString);
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CStartToken(const nsAReadableString& aName,eHTMLTags aTag);
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virtual nsresult Consume(PRUnichar aChar,nsScanner& aScanner,PRInt32 aMode);
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virtual PRInt32 GetTypeID(void);
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virtual const char* GetClassName(void);
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virtual PRInt32 GetTokenType(void);
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PRBool IsAttributed(void);
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void SetAttributed(PRBool aValue);
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PRBool IsEmpty(void);
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void SetEmpty(PRBool aValue);
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2001-10-16 09:31:36 +04:00
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#ifdef DEBUG
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2001-08-04 01:15:15 +04:00
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virtual void DebugDumpSource(nsOutputStream& out);
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2001-10-16 09:31:36 +04:00
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#endif
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2001-08-04 01:15:15 +04:00
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virtual const nsAReadableString& GetStringValue();
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virtual void GetSource(nsString& anOutputString);
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virtual void AppendSource(nsString& anOutputString);
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//the following info is used to set well-formedness state on start tags...
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virtual eContainerInfo GetContainerInfo(void) const {return mContainerInfo;}
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virtual void SetContainerInfo(eContainerInfo aContainerInfo) {mContainerInfo=aContainerInfo;}
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virtual PRBool IsWellFormed(void) const {return PRBool(eWellFormed==mContainerInfo);}
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/*
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* Get and set the ID attribute atom for this element.
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* See http://www.w3.org/TR/1998/REC-xml-19980210#sec-attribute-types
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* for the definition of an ID attribute.
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*
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*/
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virtual nsresult GetIDAttributeAtom(nsIAtom** aResult);
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virtual nsresult SetIDAttributeAtom(nsIAtom* aID);
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nsString mTextValue;
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nsString mTrailingContent;
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PRInt32 mOrigin;
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protected:
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PRBool mAttributed;
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PRBool mEmpty;
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eContainerInfo mContainerInfo;
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nsCOMPtr<nsIAtom> mIDAttributeAtom;
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};
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/**
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* This declares end tokens, which always take the
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* form </xxxx>. This class also knows how to consume
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* related attributes.
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*
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* @update gess 3/25/98
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*/
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class CEndToken: public CHTMLToken {
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CTOKEN_IMPL_SIZEOF
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public:
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CEndToken(eHTMLTags aTag);
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CEndToken(const nsAReadableString& aString);
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CEndToken(const nsAReadableString& aName,eHTMLTags aTag);
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virtual nsresult Consume(PRUnichar aChar,nsScanner& aScanner,PRInt32 aMode);
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virtual PRInt32 GetTypeID(void);
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virtual const char* GetClassName(void);
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virtual PRInt32 GetTokenType(void);
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2001-10-16 09:31:36 +04:00
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#ifdef DEBUG
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2001-08-04 01:15:15 +04:00
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virtual void DebugDumpSource(nsOutputStream& out);
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2001-10-16 09:31:36 +04:00
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#endif
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2001-08-04 01:15:15 +04:00
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virtual const nsAReadableString& GetStringValue();
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virtual void GetSource(nsString& anOutputString);
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virtual void AppendSource(nsString& anOutputString);
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protected:
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nsString mTextValue;
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};
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/**
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* This declares comment tokens. Comments are usually
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* thought of as tokens, but we treat them that way
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* here so that the parser can have a consistent view
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* of all tokens.
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*
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* @update gess 3/25/98
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*/
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class CCommentToken: public CHTMLToken {
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CTOKEN_IMPL_SIZEOF
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public:
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CCommentToken();
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CCommentToken(const nsAReadableString& aString);
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virtual nsresult Consume(PRUnichar aChar,nsScanner& aScanner,PRInt32 aMode);
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virtual const char* GetClassName(void);
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virtual PRInt32 GetTokenType(void);
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virtual const nsAReadableString& GetStringValue(void);
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char mLeadingChar;
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protected:
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nsString mTextValue;
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};
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/**
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* This class declares entity tokens, which always take
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* the form &xxxx;. This class also offers a few utility
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* methods that allow you to easily reduce entities.
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*
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* @update gess 3/25/98
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*/
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class CEntityToken : public CHTMLToken {
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CTOKEN_IMPL_SIZEOF
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public:
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CEntityToken();
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CEntityToken(const nsAReadableString& aString);
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virtual const char* GetClassName(void);
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virtual PRInt32 GetTokenType(void);
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PRInt32 TranslateToUnicodeStr(nsString& aString);
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virtual nsresult Consume(PRUnichar aChar,nsScanner& aScanner,PRInt32 aMode);
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static nsresult ConsumeEntity(PRUnichar aChar,nsString& aString,nsScanner& aScanner);
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static PRInt32 TranslateToUnicodeStr(PRInt32 aValue,nsString& aString);
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2001-10-16 09:31:36 +04:00
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#ifdef DEBUG
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2001-08-04 01:15:15 +04:00
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virtual void DebugDumpSource(nsOutputStream& out);
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2001-10-16 09:31:36 +04:00
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#endif
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2001-08-04 01:15:15 +04:00
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virtual const nsAReadableString& GetStringValue(void);
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virtual void GetSource(nsString& anOutputString);
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virtual void AppendSource(nsString& anOutputString);
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protected:
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nsString mTextValue;
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};
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/**
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* Whitespace tokens are used where whitespace can be
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* detected as distinct from text. This allows us to
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* easily skip leading/trailing whitespace when desired.
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*
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* @update gess 3/25/98
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*/
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class CWhitespaceToken: public CHTMLToken {
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CTOKEN_IMPL_SIZEOF
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public:
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CWhitespaceToken();
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CWhitespaceToken(const nsAReadableString& aString);
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virtual nsresult Consume(PRUnichar aChar,nsScanner& aScanner,PRInt32 aMode);
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virtual const char* GetClassName(void);
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virtual PRInt32 GetTokenType(void);
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virtual const nsAReadableString& GetStringValue(void);
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protected:
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nsString mTextValue;
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};
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/**
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* Text tokens contain the normalized form of html text.
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* These tokens are guaranteed not to contain entities,
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* start or end tags, or newlines.
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*
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* @update gess 3/25/98
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*/
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class CTextToken: public CHTMLToken {
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CTOKEN_IMPL_SIZEOF
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public:
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CTextToken();
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CTextToken(const nsAReadableString& aString);
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virtual nsresult Consume(PRUnichar aChar,nsScanner& aScanner,PRInt32 aMode);
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nsresult ConsumeUntil(PRUnichar aChar,PRBool aIgnoreComments,nsScanner& aScanner,
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nsString& aEndTagName,PRInt32 aMode,PRBool& aFlushTokens);
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virtual const char* GetClassName(void);
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virtual PRInt32 GetTokenType(void);
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virtual PRInt32 GetTextLength(void);
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virtual void CopyTo(nsAWritableString& aStr);
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virtual const nsAReadableString& GetStringValue(void);
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virtual void Bind(nsScanner* aScanner, nsReadingIterator<PRUnichar>& aStart, nsReadingIterator<PRUnichar>& aEnd);
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virtual void Bind(const nsAReadableString& aStr);
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protected:
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nsSlidingSubstring mTextValue;
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};
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/**
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* CDATASection tokens contain raw unescaped text content delimited by
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* a ![CDATA[ and ]].
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* XXX Not really a HTML construct - maybe we need a separation
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*
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* @update vidur 11/12/98
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*/
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class CCDATASectionToken : public CHTMLToken {
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CTOKEN_IMPL_SIZEOF
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public:
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CCDATASectionToken();
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CCDATASectionToken(const nsAReadableString& aString);
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virtual nsresult Consume(PRUnichar aChar,nsScanner& aScanner,PRInt32 aMode);
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virtual const char* GetClassName(void);
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virtual PRInt32 GetTokenType(void);
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virtual const nsAReadableString& GetStringValue(void);
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protected:
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nsString mTextValue;
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};
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/**
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* Declaration tokens contain raw unescaped text content (not really, but
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* right now we use this only for view source).
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* XXX Not really a HTML construct - maybe we need a separation
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*
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*/
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class CMarkupDeclToken : public CHTMLToken {
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CTOKEN_IMPL_SIZEOF
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public:
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CMarkupDeclToken();
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CMarkupDeclToken(const nsAReadableString& aString);
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virtual nsresult Consume(PRUnichar aChar,nsScanner& aScanner,PRInt32 aMode);
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virtual const char* GetClassName(void);
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virtual PRInt32 GetTokenType(void);
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virtual const nsAReadableString& GetStringValue(void);
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protected:
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nsSlidingSubstring mTextValue;
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};
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/**
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* Attribute tokens are used to contain attribute key/value
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* pairs whereever they may occur. Typically, they should
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* occur only in start tokens. However, we may expand that
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* ability when XML tokens become commonplace.
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*
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* @update gess 3/25/98
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*/
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class CAttributeToken: public CHTMLToken {
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CTOKEN_IMPL_SIZEOF
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public:
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CAttributeToken();
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CAttributeToken(const nsAReadableString& aString);
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CAttributeToken(const nsAReadableString& aKey, const nsAReadableString& aString);
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~CAttributeToken() {}
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virtual nsresult Consume(PRUnichar aChar,nsScanner& aScanner,PRInt32 aMode);
|
|
|
|
virtual const char* GetClassName(void);
|
|
|
|
virtual PRInt32 GetTokenType(void);
|
|
|
|
virtual const nsAReadableString& GetKey(void) {return mTextKey;}
|
|
|
|
virtual void SetKey(const nsAReadableString& aKey);
|
|
|
|
virtual void BindKey(nsScanner* aScanner, nsReadingIterator<PRUnichar>& aStart, nsReadingIterator<PRUnichar>& aEnd);
|
|
|
|
virtual const nsString& GetValue(void) {return mTextValue;}
|
|
|
|
virtual void SanitizeKey();
|
2001-10-16 09:31:36 +04:00
|
|
|
#ifdef DEBUG
|
2001-08-04 01:15:15 +04:00
|
|
|
virtual void DebugDumpToken(nsOutputStream& out);
|
2001-10-16 09:31:36 +04:00
|
|
|
#endif
|
2001-08-04 01:15:15 +04:00
|
|
|
virtual const nsAReadableString& GetStringValue(void);
|
|
|
|
virtual void GetSource(nsString& anOutputString);
|
|
|
|
virtual void AppendSource(nsString& anOutputString);
|
2001-10-16 09:31:36 +04:00
|
|
|
#ifdef DEBUG
|
2001-08-04 01:15:15 +04:00
|
|
|
virtual void DebugDumpSource(nsOutputStream& out);
|
2001-10-16 09:31:36 +04:00
|
|
|
#endif
|
2001-08-04 01:15:15 +04:00
|
|
|
PRBool mLastAttribute;
|
|
|
|
|
|
|
|
PRBool mHasEqualWithoutValue;
|
|
|
|
protected:
|
|
|
|
nsAutoString mTextValue;
|
|
|
|
nsSlidingSubstring mTextKey;
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Newline tokens contain, you guessed it, newlines.
|
|
|
|
* They consume newline (CR/LF) either alone or in pairs.
|
|
|
|
*
|
|
|
|
* @update gess 3/25/98
|
|
|
|
*/
|
|
|
|
class CNewlineToken: public CHTMLToken {
|
|
|
|
CTOKEN_IMPL_SIZEOF
|
|
|
|
|
|
|
|
public:
|
|
|
|
CNewlineToken();
|
|
|
|
virtual nsresult Consume(PRUnichar aChar,nsScanner& aScanner,PRInt32 aMode);
|
|
|
|
virtual const char* GetClassName(void);
|
|
|
|
virtual PRInt32 GetTokenType(void);
|
|
|
|
virtual const nsAReadableString& GetStringValue(void);
|
|
|
|
|
|
|
|
static void AllocNewline();
|
|
|
|
static void FreeNewline();
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Script tokens contain sequences of javascript (or, gulp,
|
|
|
|
* any other script you care to send). We don't tokenize
|
|
|
|
* it here, nor validate it. We just wrap it up, and pass
|
|
|
|
* it along to the html parser, who sends it (later on)
|
|
|
|
* to the scripting engine.
|
|
|
|
*
|
|
|
|
* @update gess 3/25/98
|
|
|
|
*/
|
|
|
|
class CScriptToken: public CHTMLToken {
|
|
|
|
CTOKEN_IMPL_SIZEOF
|
|
|
|
|
|
|
|
public:
|
|
|
|
CScriptToken();
|
|
|
|
CScriptToken(const nsAReadableString& aString);
|
|
|
|
virtual const char* GetClassName(void);
|
|
|
|
virtual PRInt32 GetTokenType(void);
|
|
|
|
virtual const nsAReadableString& GetStringValue(void);
|
|
|
|
|
|
|
|
protected:
|
|
|
|
nsString mTextValue;
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Style tokens contain sequences of css style. We don't
|
|
|
|
* tokenize it here, nor validate it. We just wrap it up,
|
|
|
|
* and pass it along to the html parser, who sends it
|
|
|
|
* (later on) to the style engine.
|
|
|
|
*
|
|
|
|
* @update gess 3/25/98
|
|
|
|
*/
|
|
|
|
class CStyleToken: public CHTMLToken {
|
|
|
|
CTOKEN_IMPL_SIZEOF
|
|
|
|
|
|
|
|
public:
|
|
|
|
CStyleToken();
|
|
|
|
CStyleToken(const nsAReadableString& aString);
|
|
|
|
virtual const char* GetClassName(void);
|
|
|
|
virtual PRInt32 GetTokenType(void);
|
|
|
|
virtual const nsAReadableString& GetStringValue(void);
|
|
|
|
|
|
|
|
protected:
|
|
|
|
nsString mTextValue;
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Whitespace tokens are used where whitespace can be
|
|
|
|
* detected as distinct from text. This allows us to
|
|
|
|
* easily skip leading/trailing whitespace when desired.
|
|
|
|
*
|
|
|
|
* @update gess 3/25/98
|
|
|
|
*/
|
|
|
|
class CInstructionToken: public CHTMLToken {
|
|
|
|
CTOKEN_IMPL_SIZEOF
|
|
|
|
|
|
|
|
public:
|
|
|
|
CInstructionToken();
|
|
|
|
CInstructionToken(const nsAReadableString& aString);
|
|
|
|
virtual nsresult Consume(PRUnichar aChar,nsScanner& aScanner,PRInt32 aMode);
|
|
|
|
virtual const char* GetClassName(void);
|
|
|
|
virtual PRInt32 GetTokenType(void);
|
|
|
|
virtual const nsAReadableString& GetStringValue(void);
|
|
|
|
|
|
|
|
protected:
|
|
|
|
nsString mTextValue;
|
|
|
|
};
|
|
|
|
|
|
|
|
class CErrorToken : public CHTMLToken {
|
|
|
|
CTOKEN_IMPL_SIZEOF
|
|
|
|
|
|
|
|
public:
|
|
|
|
CErrorToken(nsParserError* aError=0);
|
|
|
|
~CErrorToken();
|
|
|
|
virtual const char* GetClassName(void);
|
|
|
|
virtual PRInt32 GetTokenType(void);
|
|
|
|
|
|
|
|
void SetError(nsParserError* aError); // CErrorToken takes ownership of aError
|
|
|
|
|
|
|
|
// The nsParserError object returned by GetError is still owned by CErrorToken.
|
|
|
|
// DO NOT use the delete operator on it. Should we change this so that a copy
|
|
|
|
// of nsParserError is returned which needs to be destroyed by the consumer?
|
|
|
|
const nsParserError* GetError(void);
|
|
|
|
|
|
|
|
virtual const nsAReadableString& GetStringValue(void);
|
|
|
|
protected:
|
|
|
|
nsString mTextValue;
|
|
|
|
nsParserError* mError;
|
|
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
|
|
* This token is generated by the HTML and Expat tokenizers
|
|
|
|
* when they see the doctype declaration ("<!DOCTYPE ... >")
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
class CDoctypeDeclToken: public CHTMLToken {
|
|
|
|
CTOKEN_IMPL_SIZEOF
|
|
|
|
|
|
|
|
public:
|
|
|
|
CDoctypeDeclToken(eHTMLTags aTag=eHTMLTag_unknown);
|
|
|
|
CDoctypeDeclToken(const nsAReadableString& aString,eHTMLTags aTag=eHTMLTag_unknown);
|
|
|
|
virtual nsresult Consume(PRUnichar aChar,nsScanner& aScanner,PRInt32 aMode);
|
|
|
|
virtual const char* GetClassName(void);
|
|
|
|
virtual PRInt32 GetTokenType(void);
|
|
|
|
virtual const nsAReadableString& GetStringValue(void);
|
|
|
|
virtual void SetStringValue(const nsAReadableString& aStr);
|
|
|
|
|
|
|
|
protected:
|
|
|
|
nsString mTextValue;
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif
|