Avoid potential negative array index access to cached text.
[LibreOffice.git] / tools / source / string / tenccvt.cxx
blob152200a353bfa391a691bba8042eb1c04d2046b2
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
9 * This file incorporates work covered by the following license notice:
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
20 #include <rtl/tencinfo.h>
21 #include <tools/tenccvt.hxx>
23 rtl_TextEncoding GetExtendedCompatibilityTextEncoding( rtl_TextEncoding eEncoding )
25 // Latin1
26 if ( eEncoding == RTL_TEXTENCODING_ISO_8859_1 )
27 return RTL_TEXTENCODING_MS_1252;
28 // Turkey
29 else if ( eEncoding == RTL_TEXTENCODING_ISO_8859_9 )
30 return RTL_TEXTENCODING_MS_1254;
31 else
32 return eEncoding;
35 rtl_TextEncoding GetExtendedTextEncoding( rtl_TextEncoding eEncoding )
37 // Cyr
38 if ( eEncoding == RTL_TEXTENCODING_ISO_8859_5 )
39 return RTL_TEXTENCODING_MS_1251;
40 // Greek (2 Characters different: A1 (0x2018/0x0385), A2 (0x2019/0x0386) -
41 // so it is handled in this function and not in GetExtendedCompatibilityTextEncoding)
42 else if ( eEncoding == RTL_TEXTENCODING_ISO_8859_7 )
43 return RTL_TEXTENCODING_MS_1253;
44 // East-Europe - Latin2
45 else if ( eEncoding == RTL_TEXTENCODING_ISO_8859_2 )
46 return RTL_TEXTENCODING_MS_1250;
47 // Latin-15 - Latin 1 with euro sign
48 else if ( eEncoding == RTL_TEXTENCODING_ISO_8859_15 )
49 return RTL_TEXTENCODING_MS_1252;
50 else
51 return GetExtendedCompatibilityTextEncoding( eEncoding );
54 rtl_TextEncoding GetOneByteTextEncoding( rtl_TextEncoding eEncoding )
56 rtl_TextEncodingInfo aTextEncInfo;
57 aTextEncInfo.StructSize = sizeof( aTextEncInfo );
58 if ( rtl_getTextEncodingInfo( eEncoding, &aTextEncInfo ) )
60 if ( aTextEncInfo.MaximumCharSize > 1 )
61 return RTL_TEXTENCODING_MS_1252;
62 else
63 return eEncoding;
65 else
66 return RTL_TEXTENCODING_MS_1252;
69 rtl_TextEncoding GetSOLoadTextEncoding( rtl_TextEncoding eEncoding )
71 return GetExtendedCompatibilityTextEncoding( GetOneByteTextEncoding( eEncoding ) );
74 rtl_TextEncoding GetSOStoreTextEncoding( rtl_TextEncoding eEncoding )
76 return GetExtendedTextEncoding( GetOneByteTextEncoding( eEncoding ) );
79 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */