gecko-dev/grendel/mime/encoder/MimeEncoder.java

57 строки
2.1 KiB
Java

/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 the Grendel mail/news client.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are
* Copyright (C) 1997 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Created: Jamie Zawinski <jwz@netscape.com>, 28 Aug 1997.
*/
package grendel.mime.encoder;
/** This abstract class is the parent of those classes which implement
MIME encoding and decoding: base64, quoted-printable, and uuencode.
@see MimeBase64Encoder
@see MimeBase64Decoder
@see MimeQuotedPrintableEncoder
@see MimeQuotedPrintableDecoder
@see MimeUUEncoder
@see MimeUUDecoder
*/
import calypso.util.ByteBuf;
public abstract class MimeEncoder {
/** Given a sequence of input bytes, produces a sequence of output bytes.
Note that some (small) amount of buffering may be necessary, if the
input byte stream didn't fall on an appropriate boundary. If there
are bytes in `out' already, the new bytes are appended, so the
caller should do `out.setLength(0)' first if that's desired.
*/
abstract public void translate(ByteBuf in, ByteBuf out);
/** Tell the decoder that no more input data will be forthcoming.
This may result in output, as a result of flushing the internal
buffer. This object must not be used again after calling eof().
If there are bytes in `out' already, the new bytes are appended,
so the caller should do `out.setLength(0)' first if that's desired.
*/
abstract public void eof(ByteBuf out);
}