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