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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 :
31 : //= OCharsetMap
32 :
33 :
34 29 : OCharsetMap::OCharsetMap()
35 : {
36 29 : }
37 :
38 :
39 29 : void OCharsetMap::lateConstruct()
40 : {
41 29 : const rtl_TextEncoding eFirstEncoding = RTL_TEXTENCODING_DONTKNOW;
42 29 : const rtl_TextEncoding eLastEncoding = 100; // TODO: a define in rtl/textenc.h would be fine here ...
43 : OSL_ENSURE( 0 == eFirstEncoding, "OCharsetMap::OCharsetMap: somebody changed the numbers!" );
44 :
45 29 : rtl_TextEncodingInfo aInfo; aInfo.StructSize = sizeof( rtl_TextEncodingInfo );
46 2929 : for ( rtl_TextEncoding eEncoding = eFirstEncoding; eEncoding < eLastEncoding; ++eEncoding )
47 : {
48 5800 : if ( ( RTL_TEXTENCODING_DONTKNOW == eEncoding ) // this is always allowed - it has the special meaning "system encoding"
49 4553 : || ( rtl_getTextEncodingInfo( eEncoding, &aInfo )
50 2494 : && approveEncoding( eEncoding, aInfo )
51 : )
52 : )
53 : {
54 1653 : m_aEncodings.insert( eEncoding );
55 : }
56 : }
57 :
58 : OSL_ENSURE( find( RTL_TEXTENCODING_MS_1252 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding ANSI!" );
59 : OSL_ENSURE( find( RTL_TEXTENCODING_APPLE_ROMAN ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding macintosh!" );
60 : OSL_ENSURE( find( RTL_TEXTENCODING_IBM_437 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM437!" );
61 : OSL_ENSURE( find( RTL_TEXTENCODING_IBM_850) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM850!" );
62 : OSL_ENSURE( find( RTL_TEXTENCODING_IBM_860 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM860!" );
63 : OSL_ENSURE( find( RTL_TEXTENCODING_IBM_861 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM861!" );
64 : OSL_ENSURE( find( RTL_TEXTENCODING_IBM_863 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM863!" );
65 : OSL_ENSURE( find( RTL_TEXTENCODING_IBM_865 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM865!" );
66 : OSL_ENSURE( find( RTL_TEXTENCODING_IBM_866 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM866!" );
67 : OSL_ENSURE( find( RTL_TEXTENCODING_DONTKNOW ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding SYSTEM!" );
68 : OSL_ENSURE( find( RTL_TEXTENCODING_UTF8 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding UTF-8!" );
69 : OSL_ENSURE( find( RTL_TEXTENCODING_BIG5_HKSCS ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding Big5-HKSCS!" );
70 29 : }
71 :
72 :
73 2494 : bool OCharsetMap::approveEncoding( const rtl_TextEncoding _eEncoding, const rtl_TextEncodingInfo& _rInfo ) const
74 : {
75 2494 : bool bIsMimeEncoding = 0 != ( _rInfo.Flags & RTL_TEXTENCODING_INFO_MIME );
76 : OSL_ENSURE( !bIsMimeEncoding || rtl_getMimeCharsetFromTextEncoding( _eEncoding ),
77 : "OCharsetMap::OCharsetMap: inconsistence in rtl!" );
78 : OSL_UNUSED( _eEncoding );
79 2494 : return bIsMimeEncoding;
80 : }
81 :
82 :
83 29 : OCharsetMap::~OCharsetMap()
84 : {
85 29 : }
86 :
87 :
88 0 : OCharsetMap::CharsetIterator OCharsetMap::begin() const
89 : {
90 0 : ensureConstructed( );
91 0 : return CharsetIterator(this, m_aEncodings.begin() );
92 : }
93 :
94 :
95 29 : OCharsetMap::CharsetIterator OCharsetMap::find(const rtl_TextEncoding _eEncoding) const
96 : {
97 29 : ensureConstructed( );
98 29 : return CharsetIterator( this, m_aEncodings.find( _eEncoding ) );
99 : }
100 :
101 :
102 29 : OCharsetMap::CharsetIterator OCharsetMap::find(const OUString& _rIanaName, const IANA&) const
103 : {
104 29 : ensureConstructed( );
105 :
106 29 : rtl_TextEncoding eEncoding = RTL_TEXTENCODING_DONTKNOW;
107 29 : if ( !_rIanaName.isEmpty() )
108 : {
109 : // byte string conversion
110 7 : OString sMimeByteString( _rIanaName.getStr(), _rIanaName.getLength(), RTL_TEXTENCODING_ASCII_US );
111 : // look up
112 7 : eEncoding = rtl_getTextEncodingFromMimeCharset( sMimeByteString.getStr() );
113 :
114 7 : if ( RTL_TEXTENCODING_DONTKNOW == eEncoding )
115 : { // if we're here, the name is not empty, but unknown -> this is an invalid name
116 0 : return end();
117 7 : }
118 : }
119 :
120 29 : return find( eEncoding );
121 : }
122 :
123 :
124 29 : OCharsetMap::CharsetIterator OCharsetMap::end() const
125 : {
126 29 : ensureConstructed( );
127 :
128 29 : return CharsetIterator( this, m_aEncodings.end() );
129 : }
130 :
131 :
132 : //= CharsetIteratorDerefHelper
133 :
134 :
135 0 : CharsetIteratorDerefHelper::CharsetIteratorDerefHelper( const CharsetIteratorDerefHelper& _rSource )
136 : :m_eEncoding( _rSource.m_eEncoding )
137 0 : ,m_aIanaName( _rSource.m_aIanaName )
138 : {
139 0 : }
140 :
141 :
142 29 : CharsetIteratorDerefHelper:: CharsetIteratorDerefHelper(const rtl_TextEncoding _eEncoding, const OUString& _rIanaName )
143 : :m_eEncoding( _eEncoding )
144 29 : ,m_aIanaName( _rIanaName )
145 : {
146 29 : }
147 :
148 :
149 : //= OCharsetMap::CharsetIterator
150 :
151 :
152 58 : OCharsetMap::CharsetIterator::CharsetIterator(const OCharsetMap* _pContainer, OCharsetMap::TextEncBag::const_iterator _aPos )
153 : :m_pContainer( _pContainer )
154 58 : ,m_aPos( _aPos )
155 : {
156 : OSL_ENSURE( m_pContainer, "OCharsetMap::CharsetIterator::CharsetIterator : invalid container!" );
157 58 : }
158 :
159 :
160 0 : OCharsetMap::CharsetIterator::CharsetIterator(const CharsetIterator& _rSource)
161 : :m_pContainer( _rSource.m_pContainer )
162 0 : ,m_aPos( _rSource.m_aPos )
163 : {
164 0 : }
165 :
166 :
167 58 : OCharsetMap::CharsetIterator::~CharsetIterator()
168 : {
169 58 : }
170 :
171 :
172 29 : CharsetIteratorDerefHelper OCharsetMap::CharsetIterator::operator*() const
173 : {
174 : OSL_ENSURE( m_aPos != m_pContainer->m_aEncodings.end(), "OCharsetMap::CharsetIterator::operator*: invalid position!");
175 :
176 29 : rtl_TextEncoding eEncoding = *m_aPos;
177 29 : OUString sIanaName;
178 :
179 29 : if ( RTL_TEXTENCODING_DONTKNOW != eEncoding )
180 : { // it's not the virtual "system charset"
181 7 : const char* pIanaName = rtl_getMimeCharsetFromTextEncoding( eEncoding );
182 : OSL_ENSURE( pIanaName, "OCharsetMap::CharsetIterator: invalid mime name!" );
183 7 : if ( pIanaName )
184 7 : sIanaName = OUString::createFromAscii( pIanaName );
185 : }
186 29 : return CharsetIteratorDerefHelper( eEncoding, sIanaName );
187 : }
188 :
189 :
190 0 : const OCharsetMap::CharsetIterator& OCharsetMap::CharsetIterator::operator++()
191 : {
192 : OSL_ENSURE( m_aPos != m_pContainer->m_aEncodings.end(), "OCharsetMap::CharsetIterator::operator++ : invalid position!" );
193 0 : if ( m_aPos != m_pContainer->m_aEncodings.end())
194 0 : ++m_aPos;
195 0 : return *this;
196 : }
197 :
198 :
199 0 : const OCharsetMap::CharsetIterator& OCharsetMap::CharsetIterator::operator--()
200 : {
201 : OSL_ENSURE( m_aPos != m_pContainer->m_aEncodings.begin(), "OCharsetMap::CharsetIterator::operator-- : invalid position!" );
202 0 : if ( m_aPos != m_pContainer->m_aEncodings.begin() )
203 0 : --m_aPos;
204 0 : return *this;
205 : }
206 :
207 :
208 29 : bool operator==(const OCharsetMap::CharsetIterator& lhs, const OCharsetMap::CharsetIterator& rhs)
209 : {
210 29 : return ( lhs.m_pContainer == rhs.m_pContainer ) && ( lhs.m_aPos == rhs.m_aPos );
211 : }
212 :
213 :
214 : } // namespace dbtools
215 :
216 :
217 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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