1a6701bd85
document to HTML to Text. The charset information is first encoded in XIF and then that information is used when interpretting the unicode for output. Added support to output character entity information which should address bug 4709 git-svn-id: svn://10.0.0.236/trunk@29162 18797224-902f-48f8-a5cc-f745e15eee43
148 lines
4.8 KiB
C++
148 lines
4.8 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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*
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* If you've been paying attention to our many content sink classes, you may be
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* asking yourself, "why do we need yet another one?" The answer is that this
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* implementation, unlike all the others, really sends its output a given stream
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* rather than to an actual content sink (as defined in our HTML document system).
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*
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* We use this class for a number of purposes:
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* 1) For actual document i/o using XIF (xml interchange format)
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* 2) For document conversions
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* 3) For debug purposes (to cause output to go to cout or a file)
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*
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* If no stream is declared in the constructor then all output goes to cout.
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* The file is pretty printed according to the pretty printing interface. subclasses
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* may choose to override this behavior or set runtime flags for desired results.
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*/
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#ifndef NS_HTMLTOTEXTSINK_STREAM
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#define NS_HTMLTOTEXTSINK_STREAM
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#include "nsIParserNode.h"
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#include "nsIHTMLContentSink.h"
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#include "nshtmlpars.h"
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#include "nsHTMLTokens.h"
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#define NS_HTMLTOTEXTSINK_STREAM_IID \
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{0xa39c6bff, 0x15f0, 0x11d2, \
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{0x80, 0x41, 0x0, 0x10, 0x4b, 0x98, 0x3f, 0xd4}}
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#ifndef XP_MAC
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class ostream;
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#endif
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class nsIUnicodeEncoder;
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class nsHTMLToTXTSinkStream : public nsIHTMLContentSink {
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public:
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/**
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* Standard constructor
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* @update gpk02/03/99
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*/
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nsHTMLToTXTSinkStream();
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nsHTMLToTXTSinkStream(ostream& aStream);
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/**
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* virtual destructor
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* @update gpk02/03/99
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*/
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virtual ~nsHTMLToTXTSinkStream();
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NS_IMETHOD_(void) SetOutputStream(ostream& aStream);
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NS_IMETHOD GetStringBuffer(nsString & aStrBuffer);
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// nsISupports
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NS_DECL_ISUPPORTS
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/*******************************************************************
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* The following methods are inherited from nsIContentSink.
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* Please see that file for details.
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*******************************************************************/
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NS_IMETHOD WillBuildModel(void);
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NS_IMETHOD DidBuildModel(PRInt32 aQualityLevel);
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NS_IMETHOD WillInterrupt(void);
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NS_IMETHOD WillResume(void);
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NS_IMETHOD SetParser(nsIParser* aParser);
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NS_IMETHOD OpenContainer(const nsIParserNode& aNode);
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NS_IMETHOD CloseContainer(const nsIParserNode& aNode);
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NS_IMETHOD AddLeaf(const nsIParserNode& aNode);
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NS_IMETHOD NotifyError(const nsParserError* aError);
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NS_IMETHOD AddComment(const nsIParserNode& aNode);
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NS_IMETHOD AddProcessingInstruction(const nsIParserNode& aNode);
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/*******************************************************************
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* The following methods are inherited from nsIHTMLContentSink.
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* Please see that file for details.
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*******************************************************************/
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NS_IMETHOD SetTitle(const nsString& aValue);
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NS_IMETHOD OpenHTML(const nsIParserNode& aNode);
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NS_IMETHOD CloseHTML(const nsIParserNode& aNode);
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NS_IMETHOD OpenHead(const nsIParserNode& aNode);
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NS_IMETHOD CloseHead(const nsIParserNode& aNode);
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NS_IMETHOD OpenBody(const nsIParserNode& aNode);
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NS_IMETHOD CloseBody(const nsIParserNode& aNode);
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NS_IMETHOD OpenForm(const nsIParserNode& aNode);
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NS_IMETHOD CloseForm(const nsIParserNode& aNode);
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NS_IMETHOD OpenMap(const nsIParserNode& aNode);
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NS_IMETHOD CloseMap(const nsIParserNode& aNode);
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NS_IMETHOD OpenFrameset(const nsIParserNode& aNode);
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NS_IMETHOD CloseFrameset(const nsIParserNode& aNode);
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NS_IMETHOD DoFragment(PRBool aFlag);
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NS_IMETHOD BeginContext(PRInt32 aPosition);
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NS_IMETHOD EndContext(PRInt32 aPosition);
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protected:
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nsresult AddLeaf(const nsIParserNode& aNode, ostream& aStream);
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void WriteAttributes(const nsIParserNode& aNode,ostream& aStream);
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void EnsureBufferSize(PRInt32 aNewSize);
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void UnicodeToTXTString(const nsString& aSrc);
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nsresult InitEncoder(const nsString& aCharset);
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protected:
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ostream* mOutput;
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PRInt32 mIndent;
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PRInt32 mColPos;
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PRBool mDoOutput;
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char* mBuffer;
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PRInt32 mBufferSize;
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nsString mStrBuffer;
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nsIUnicodeEncoder* mUnicodeEncoder;
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};
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extern NS_HTMLPARS nsresult
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NS_New_HTMLToTXT_SinkStream(nsIHTMLContentSink** aInstancePtrResult);
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#endif
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