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122 lines
3.4 KiB
122 lines
3.4 KiB
15 years ago
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/* -*- c++ -*-
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kmime_codec_qp.h
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This file is part of KMime, the KDE internet mail/usenet news message library.
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Copyright (c) 2001-2002 Marc Mutz <mutz@kde.org>
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KMime is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License, version 2, as
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published by the Free Software Foundation.
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KMime is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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In addition, as a special exception, the copyright holders give
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permission to link the code of this library with any edition of
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the Qt library by Trolltech AS, Norway (or with modified versions
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of Qt that use the same license as Qt), and distribute linked
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combinations including the two. You must obey the GNU General
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Public License in all respects for all of the code used other than
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Qt. If you modify this file, you may extend this exception to
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your version of the file, but you are not obligated to do so. If
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you do not wish to do so, delete this exception statement from
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your version.
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*/
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#ifndef __KMIME_CODEC_QP__
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#define __KMIME_CODEC_QP__
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#include "kmime_codecs.h"
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namespace KMime {
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class QuotedPrintableCodec : public Codec {
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protected:
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friend class Codec;
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QuotedPrintableCodec() : Codec() {}
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public:
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virtual ~QuotedPrintableCodec() {}
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const char * name() const {
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return "quoted-printable";
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}
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int maxEncodedSizeFor( int insize, bool withCRLF=false ) const {
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// all chars encoded:
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int result = 3*insize;
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// then after 25 hexchars comes a soft linebreak: =(\r)\n
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result += (withCRLF ? 3 : 2) * (insize/25);
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return result;
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}
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int maxDecodedSizeFor( int insize, bool withCRLF=false ) const;
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Encoder * makeEncoder( bool withCRLF=false ) const;
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Decoder * makeDecoder( bool withCRLF=false ) const;
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};
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class Rfc2047QEncodingCodec : public Codec {
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protected:
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friend class Codec;
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Rfc2047QEncodingCodec() : Codec() {}
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public:
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virtual ~Rfc2047QEncodingCodec() {}
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const char * name() const {
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return "q";
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}
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int maxEncodedSizeFor( int insize, bool withCRLF=false ) const {
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(void)withCRLF; // keep compiler happy
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// this one is simple: We don't do linebreaking, so all that can
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// happen is that every char needs encoding, so:
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return 3*insize;
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}
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int maxDecodedSizeFor( int insize, bool withCRLF=false ) const;
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Encoder * makeEncoder( bool withCRLF=false ) const;
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Decoder * makeDecoder( bool withCRLF=false ) const;
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};
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class Rfc2231EncodingCodec : public Codec {
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protected:
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friend class Codec;
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Rfc2231EncodingCodec() : Codec() {}
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public:
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virtual ~Rfc2231EncodingCodec() {}
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const char * name() const {
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return "x-kmime-rfc2231";
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}
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int maxEncodedSizeFor( int insize, bool withCRLF=false ) const {
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(void)withCRLF; // keep compiler happy
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// same as for "q" encoding:
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return 3*insize;
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}
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int maxDecodedSizeFor( int insize, bool withCRLF=false ) const;
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Encoder * makeEncoder( bool withCRLF=false ) const;
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Decoder * makeDecoder( bool withCRLF=false ) const;
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};
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} // namespace KMime
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#endif // __KMIME_CODEC_QP__
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