1 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is Mozilla Communicator client code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Netscape Communications Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 1998
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
25 : * either of the GNU General Public License Version 2 or later (the "GPL"),
26 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
27 : * in which case the provisions of the GPL or the LGPL are applicable instead
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31 : * decision by deleting the provisions above and replace them with the notice
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33 : * the provisions above, a recipient may use your version of this file under
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35 : *
36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : #ifndef nsUTF7ToUnicode_h___
39 : #define nsUTF7ToUnicode_h___
40 :
41 : #include "nsUCSupport.h"
42 :
43 : //----------------------------------------------------------------------
44 : // Class nsBasicUTF7Decoder [declaration]
45 :
46 : /**
47 : * Basic class for a character set converter from UTF-7 to Unicode.
48 : *
49 : * @created 03/Jun/1999
50 : * @author Catalin Rotaru [CATA]
51 : */
52 : class nsBasicUTF7Decoder : public nsBufferDecoderSupport
53 24 : {
54 : public:
55 :
56 : /**
57 : * Class constructor.
58 : */
59 : nsBasicUTF7Decoder(char aLastChar, char aEscChar);
60 :
61 : protected:
62 :
63 : PRInt32 mEncoding; // current encoding
64 : PRUint32 mEncBits;
65 : PRInt32 mEncStep;
66 : char mLastChar;
67 : char mEscChar;
68 : bool mFreshBase64;
69 :
70 : nsresult DecodeDirect(const char * aSrc, PRInt32 * aSrcLength,
71 : PRUnichar * aDest, PRInt32 * aDestLength);
72 : nsresult DecodeBase64(const char * aSrc, PRInt32 * aSrcLength,
73 : PRUnichar * aDest, PRInt32 * aDestLength);
74 : PRUint32 CharToValue(char aChar);
75 :
76 : //--------------------------------------------------------------------
77 : // Subclassing of nsBufferDecoderSupport class [declaration]
78 :
79 : NS_IMETHOD ConvertNoBuff(const char * aSrc, PRInt32 * aSrcLength,
80 : PRUnichar * aDest, PRInt32 * aDestLength);
81 : NS_IMETHOD Reset();
82 : };
83 :
84 : //----------------------------------------------------------------------
85 : // Class nsUTF7ToUnicode [declaration]
86 :
87 : /**
88 : * A character set converter from Modified UTF7 to Unicode.
89 : *
90 : * @created 18/May/1999
91 : * @author Catalin Rotaru [CATA]
92 : */
93 : class nsUTF7ToUnicode : public nsBasicUTF7Decoder
94 48 : {
95 : public:
96 :
97 : /**
98 : * Class constructor.
99 : */
100 : nsUTF7ToUnicode();
101 :
102 : };
103 :
104 : #endif /* nsUTF7ToUnicode_h___ */
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