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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
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/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
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 .
18 : */
19 :
20 : #include <connectivity/dbcharset.hxx>
21 : #include "diagnose_ex.h"
22 : #include <osl/diagnose.h>
23 : #include <rtl/tencinfo.h>
24 :
25 :
26 : namespace dbtools
27 : {
28 :
29 30 : OCharsetMap::OCharsetMap()
30 : {
31 30 : }
32 :
33 :
34 30 : void OCharsetMap::lateConstruct()
35 : {
36 30 : const rtl_TextEncoding eFirstEncoding = RTL_TEXTENCODING_DONTKNOW;
37 30 : const rtl_TextEncoding eLastEncoding = 100; // TODO: a define in rtl/textenc.h would be fine here ...
38 : OSL_ENSURE( 0 == eFirstEncoding, "OCharsetMap::OCharsetMap: somebody changed the numbers!" );
39 :
40 30 : rtl_TextEncodingInfo aInfo; aInfo.StructSize = sizeof( rtl_TextEncodingInfo );
41 3030 : for ( rtl_TextEncoding eEncoding = eFirstEncoding; eEncoding < eLastEncoding; ++eEncoding )
42 : {
43 6000 : if ( ( RTL_TEXTENCODING_DONTKNOW == eEncoding ) // this is always allowed - it has the special meaning "system encoding"
44 4710 : || ( rtl_getTextEncodingInfo( eEncoding, &aInfo )
45 2580 : && approveEncoding( eEncoding, aInfo )
46 : )
47 : )
48 : {
49 1710 : m_aEncodings.insert( eEncoding );
50 : }
51 : }
52 :
53 : OSL_ENSURE( find( RTL_TEXTENCODING_MS_1252 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding ANSI!" );
54 : OSL_ENSURE( find( RTL_TEXTENCODING_APPLE_ROMAN ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding macintosh!" );
55 : OSL_ENSURE( find( RTL_TEXTENCODING_IBM_437 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM437!" );
56 : OSL_ENSURE( find( RTL_TEXTENCODING_IBM_850) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM850!" );
57 : OSL_ENSURE( find( RTL_TEXTENCODING_IBM_860 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM860!" );
58 : OSL_ENSURE( find( RTL_TEXTENCODING_IBM_861 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM861!" );
59 : OSL_ENSURE( find( RTL_TEXTENCODING_IBM_863 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM863!" );
60 : OSL_ENSURE( find( RTL_TEXTENCODING_IBM_865 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM865!" );
61 : OSL_ENSURE( find( RTL_TEXTENCODING_IBM_866 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM866!" );
62 : OSL_ENSURE( find( RTL_TEXTENCODING_DONTKNOW ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding SYSTEM!" );
63 : OSL_ENSURE( find( RTL_TEXTENCODING_UTF8 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding UTF-8!" );
64 : OSL_ENSURE( find( RTL_TEXTENCODING_BIG5_HKSCS ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding Big5-HKSCS!" );
65 30 : }
66 :
67 :
68 2580 : bool OCharsetMap::approveEncoding( const rtl_TextEncoding _eEncoding, const rtl_TextEncodingInfo& _rInfo ) const
69 : {
70 2580 : bool bIsMimeEncoding = 0 != ( _rInfo.Flags & RTL_TEXTENCODING_INFO_MIME );
71 : OSL_ENSURE( !bIsMimeEncoding || rtl_getMimeCharsetFromTextEncoding( _eEncoding ),
72 : "OCharsetMap::OCharsetMap: inconsistence in rtl!" );
73 : OSL_UNUSED( _eEncoding );
74 2580 : return bIsMimeEncoding;
75 : }
76 :
77 :
78 30 : OCharsetMap::~OCharsetMap()
79 : {
80 30 : }
81 :
82 :
83 1 : OCharsetMap::CharsetIterator OCharsetMap::begin() const
84 : {
85 1 : ensureConstructed( );
86 1 : return CharsetIterator(this, m_aEncodings.begin() );
87 : }
88 :
89 :
90 29 : OCharsetMap::CharsetIterator OCharsetMap::find(const rtl_TextEncoding _eEncoding) const
91 : {
92 29 : ensureConstructed( );
93 29 : return CharsetIterator( this, m_aEncodings.find( _eEncoding ) );
94 : }
95 :
96 :
97 29 : OCharsetMap::CharsetIterator OCharsetMap::find(const OUString& _rIanaName, const IANA&) const
98 : {
99 29 : ensureConstructed( );
100 :
101 29 : rtl_TextEncoding eEncoding = RTL_TEXTENCODING_DONTKNOW;
102 29 : if ( !_rIanaName.isEmpty() )
103 : {
104 : // byte string conversion
105 7 : OString sMimeByteString( _rIanaName.getStr(), _rIanaName.getLength(), RTL_TEXTENCODING_ASCII_US );
106 : // look up
107 7 : eEncoding = rtl_getTextEncodingFromMimeCharset( sMimeByteString.getStr() );
108 :
109 7 : if ( RTL_TEXTENCODING_DONTKNOW == eEncoding )
110 : { // if we're here, the name is not empty, but unknown -> this is an invalid name
111 0 : return end();
112 7 : }
113 : }
114 :
115 29 : return find( eEncoding );
116 : }
117 :
118 :
119 30 : OCharsetMap::CharsetIterator OCharsetMap::end() const
120 : {
121 30 : ensureConstructed( );
122 :
123 30 : return CharsetIterator( this, m_aEncodings.end() );
124 : }
125 :
126 :
127 0 : CharsetIteratorDerefHelper::CharsetIteratorDerefHelper( const CharsetIteratorDerefHelper& _rSource )
128 : :m_eEncoding( _rSource.m_eEncoding )
129 0 : ,m_aIanaName( _rSource.m_aIanaName )
130 : {
131 0 : }
132 :
133 :
134 86 : CharsetIteratorDerefHelper:: CharsetIteratorDerefHelper(const rtl_TextEncoding _eEncoding, const OUString& _rIanaName )
135 : :m_eEncoding( _eEncoding )
136 86 : ,m_aIanaName( _rIanaName )
137 : {
138 86 : }
139 :
140 60 : OCharsetMap::CharsetIterator::CharsetIterator(const OCharsetMap* _pContainer, OCharsetMap::TextEncBag::const_iterator _aPos )
141 : :m_pContainer( _pContainer )
142 60 : ,m_aPos( _aPos )
143 : {
144 : OSL_ENSURE( m_pContainer, "OCharsetMap::CharsetIterator::CharsetIterator : invalid container!" );
145 60 : }
146 :
147 :
148 0 : OCharsetMap::CharsetIterator::CharsetIterator(const CharsetIterator& _rSource)
149 : :m_pContainer( _rSource.m_pContainer )
150 0 : ,m_aPos( _rSource.m_aPos )
151 : {
152 0 : }
153 :
154 :
155 60 : OCharsetMap::CharsetIterator::~CharsetIterator()
156 : {
157 60 : }
158 :
159 :
160 86 : CharsetIteratorDerefHelper OCharsetMap::CharsetIterator::operator*() const
161 : {
162 : OSL_ENSURE( m_aPos != m_pContainer->m_aEncodings.end(), "OCharsetMap::CharsetIterator::operator*: invalid position!");
163 :
164 86 : rtl_TextEncoding eEncoding = *m_aPos;
165 86 : OUString sIanaName;
166 :
167 86 : if ( RTL_TEXTENCODING_DONTKNOW != eEncoding )
168 : { // it's not the virtual "system charset"
169 63 : const char* pIanaName = rtl_getMimeCharsetFromTextEncoding( eEncoding );
170 : OSL_ENSURE( pIanaName, "OCharsetMap::CharsetIterator: invalid mime name!" );
171 63 : if ( pIanaName )
172 63 : sIanaName = OUString::createFromAscii( pIanaName );
173 : }
174 86 : return CharsetIteratorDerefHelper( eEncoding, sIanaName );
175 : }
176 :
177 :
178 57 : const OCharsetMap::CharsetIterator& OCharsetMap::CharsetIterator::operator++()
179 : {
180 : OSL_ENSURE( m_aPos != m_pContainer->m_aEncodings.end(), "OCharsetMap::CharsetIterator::operator++ : invalid position!" );
181 57 : if ( m_aPos != m_pContainer->m_aEncodings.end())
182 57 : ++m_aPos;
183 57 : return *this;
184 : }
185 :
186 :
187 0 : const OCharsetMap::CharsetIterator& OCharsetMap::CharsetIterator::operator--()
188 : {
189 : OSL_ENSURE( m_aPos != m_pContainer->m_aEncodings.begin(), "OCharsetMap::CharsetIterator::operator-- : invalid position!" );
190 0 : if ( m_aPos != m_pContainer->m_aEncodings.begin() )
191 0 : --m_aPos;
192 0 : return *this;
193 : }
194 :
195 :
196 87 : bool operator==(const OCharsetMap::CharsetIterator& lhs, const OCharsetMap::CharsetIterator& rhs)
197 : {
198 87 : return ( lhs.m_pContainer == rhs.m_pContainer ) && ( lhs.m_aPos == rhs.m_aPos );
199 : }
200 :
201 :
202 : } // namespace dbtools
203 :
204 :
205 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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