RetroZilla/mailnews/import/src/ImportOutFile.h
2015-10-20 23:03:22 -04:00

125 lines
3.8 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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 ImportOutFile_h___
#define ImportOutFile_h___
#include "nsImportTranslator.h"
#include "nsIFileSpec.h"
#define kMaxMarkers 10
class ImportOutFile;
class ImportOutFile {
public:
ImportOutFile();
ImportOutFile( nsIFileSpec *pFile, PRUint8 * pBuf, PRUint32 sz);
~ImportOutFile();
PRBool InitOutFile( nsIFileSpec *pFile, PRUint32 bufSz = 4096);
void InitOutFile( nsIFileSpec *pFile, PRUint8 * pBuf, PRUint32 sz);
inline PRBool WriteData( const PRUint8 * pSrc, PRUint32 len);
inline PRBool WriteByte( PRUint8 byte);
PRBool WriteStr( const char *pStr) {return( WriteU8NullTerm( (const PRUint8 *) pStr, PR_FALSE)); }
PRBool WriteU8NullTerm( const PRUint8 * pSrc, PRBool includeNull);
PRBool WriteEol( void) { return( WriteStr( "\x0D\x0A")); }
PRBool Done( void) {return( Flush());}
// Marker support
PRBool SetMarker( int markerID);
void ClearMarker( int markerID);
PRBool WriteStrAtMarker( int markerID, const char *pStr);
// 8-bit to 7-bit translation
PRBool Set8bitTranslator( nsImportTranslator *pTrans);
PRBool End8bitTranslation( PRBool *pEngaged, nsCString& useCharset, nsCString& encoding);
protected:
PRBool Flush( void);
protected:
nsIFileSpec * m_pFile;
PRUint8 * m_pBuf;
PRUint32 m_bufSz;
PRUint32 m_pos;
PRBool m_ownsFileAndBuffer;
// markers
PRUint32 m_markers[kMaxMarkers];
// 8 bit to 7 bit translations
nsImportTranslator * m_pTrans;
PRBool m_engaged;
PRBool m_supports8to7;
ImportOutFile * m_pTransOut;
PRUint8 * m_pTransBuf;
};
inline PRBool ImportOutFile::WriteData( const PRUint8 * pSrc, PRUint32 len) {
while ((len + m_pos) > m_bufSz) {
if ((m_bufSz - m_pos)) {
memcpy( m_pBuf + m_pos, pSrc, m_bufSz - m_pos);
len -= (m_bufSz - m_pos);
pSrc += (m_bufSz - m_pos);
m_pos = m_bufSz;
}
if (!Flush())
return( PR_FALSE);
}
if (len) {
memcpy( m_pBuf + m_pos, pSrc, len);
m_pos += len;
}
return( PR_TRUE);
}
inline PRBool ImportOutFile::WriteByte( PRUint8 byte) {
if (m_pos == m_bufSz) {
if (!Flush())
return( PR_FALSE);
}
*(m_pBuf + m_pos) = byte;
m_pos++;
return( PR_TRUE);
}
#endif /* ImportOutFile_h__ */