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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 <sal/config.h>
21 :
22 : #include <sal/log.hxx>
23 : #include <unotools/transliterationwrapper.hxx>
24 : #include <i18nlangtag/languagetag.hxx>
25 :
26 : #include <com/sun/star/i18n/TransliterationModulesExtra.hpp>
27 : #include <com/sun/star/i18n/Transliteration.hpp>
28 :
29 : using namespace ::com::sun::star::lang;
30 : using namespace ::com::sun::star::i18n;
31 : using namespace ::com::sun::star::uno;
32 : using namespace ::utl;
33 :
34 323 : TransliterationWrapper::TransliterationWrapper(
35 : const Reference< XComponentContext > & rxContext,
36 : sal_uInt32 nTyp )
37 : : xTrans( Transliteration::create(rxContext) ),
38 323 : aLanguageTag( LANGUAGE_SYSTEM ), nType( nTyp ), bFirstCall( true )
39 : {
40 323 : }
41 :
42 250 : TransliterationWrapper::~TransliterationWrapper()
43 : {
44 250 : }
45 :
46 95 : OUString TransliterationWrapper::transliterate(const OUString& rStr, sal_uInt16 nLang,
47 : sal_Int32 nStart, sal_Int32 nLen,
48 : Sequence <sal_Int32>* pOffset )
49 : {
50 95 : OUString sRet;
51 95 : if( xTrans.is() )
52 : {
53 : try
54 : {
55 95 : loadModuleIfNeeded( nLang );
56 :
57 95 : if ( pOffset )
58 95 : sRet = xTrans->transliterate( rStr, nStart, nLen, *pOffset );
59 : else
60 0 : sRet = xTrans->transliterateString2String( rStr, nStart, nLen);
61 : }
62 0 : catch( Exception& )
63 : {
64 : SAL_WARN( "unotools.i18n", "transliterate: Exception caught!" );
65 : }
66 : }
67 95 : return sRet;
68 : }
69 :
70 2 : OUString TransliterationWrapper::transliterate( const OUString& rStr,
71 : sal_Int32 nStart, sal_Int32 nLen,
72 : Sequence <sal_Int32>* pOffset ) const
73 : {
74 2 : OUString sRet( rStr );
75 2 : if( xTrans.is() )
76 : {
77 : try
78 : {
79 2 : if ( pOffset )
80 0 : sRet = xTrans->transliterate( rStr, nStart, nLen, *pOffset );
81 : else
82 2 : sRet = xTrans->transliterateString2String( rStr, nStart, nLen);
83 : }
84 0 : catch( Exception& )
85 : {
86 : SAL_WARN( "unotools.i18n", "transliterate: Exception caught!" );
87 : }
88 : }
89 2 : return sRet;
90 : }
91 :
92 276 : bool TransliterationWrapper::needLanguageForTheMode() const
93 : {
94 550 : return TransliterationModules_UPPERCASE_LOWERCASE == nType ||
95 540 : TransliterationModules_LOWERCASE_UPPERCASE == nType ||
96 268 : TransliterationModules_IGNORE_CASE == nType ||
97 4 : (sal_uInt32) TransliterationModulesExtra::SENTENCE_CASE == (sal_uInt32) nType ||
98 280 : (sal_uInt32) TransliterationModulesExtra::TITLE_CASE == (sal_uInt32) nType ||
99 278 : (sal_uInt32) TransliterationModulesExtra::TOGGLE_CASE == (sal_uInt32) nType;
100 : }
101 :
102 370 : void TransliterationWrapper::setLanguageLocaleImpl( sal_uInt16 nLang )
103 : {
104 370 : if( LANGUAGE_NONE == nLang )
105 0 : nLang = LANGUAGE_SYSTEM;
106 370 : aLanguageTag.reset( nLang);
107 370 : }
108 :
109 908 : void TransliterationWrapper::loadModuleIfNeeded( sal_uInt16 nLang )
110 : {
111 908 : bool bLoad = bFirstCall;
112 908 : bFirstCall = false;
113 :
114 908 : if( static_cast< sal_Int32 >(nType) == TransliterationModulesExtra::SENTENCE_CASE )
115 : {
116 1 : if( bLoad )
117 1 : loadModuleByImplName(OUString("SENTENCE_CASE"), nLang);
118 : }
119 907 : else if( static_cast< sal_Int32 >(nType) == TransliterationModulesExtra::TITLE_CASE )
120 : {
121 1 : if( bLoad )
122 1 : loadModuleByImplName(OUString("TITLE_CASE"), nLang);
123 : }
124 906 : else if( static_cast< sal_Int32 >(nType) == TransliterationModulesExtra::TOGGLE_CASE )
125 : {
126 1 : if( bLoad )
127 1 : loadModuleByImplName(OUString("TOGGLE_CASE"), nLang);
128 : }
129 : else
130 : {
131 905 : if( aLanguageTag.getLanguageType() != nLang )
132 : {
133 365 : setLanguageLocaleImpl( nLang );
134 365 : if( !bLoad )
135 270 : bLoad = needLanguageForTheMode();
136 : }
137 905 : if( bLoad )
138 585 : loadModuleImpl();
139 : }
140 908 : }
141 :
142 585 : void TransliterationWrapper::loadModuleImpl() const
143 : {
144 585 : if ( bFirstCall )
145 0 : const_cast<TransliterationWrapper*>(this)->setLanguageLocaleImpl( LANGUAGE_SYSTEM );
146 :
147 : try
148 : {
149 585 : if ( xTrans.is() )
150 585 : xTrans->loadModule( (TransliterationModules)nType, aLanguageTag.getLocale() );
151 : }
152 0 : catch ( const Exception& e )
153 : {
154 : SAL_WARN( "unotools.i18n", "loadModuleImpl: Exception caught " << e.Message );
155 : }
156 :
157 585 : bFirstCall = false;
158 585 : }
159 :
160 5 : void TransliterationWrapper::loadModuleByImplName(const OUString& rModuleName,
161 : sal_uInt16 nLang )
162 : {
163 : try
164 : {
165 5 : setLanguageLocaleImpl( nLang );
166 5 : com::sun::star::lang::Locale aLocale( aLanguageTag.getLocale());
167 : // Reset LanguageTag, so the next call to loadModuleIfNeeded() forces
168 : // new settings.
169 5 : aLanguageTag.reset( LANGUAGE_DONTKNOW);
170 5 : if ( xTrans.is() )
171 5 : xTrans->loadModuleByImplName( rModuleName, aLocale );
172 : }
173 0 : catch ( const Exception& e )
174 : {
175 : SAL_WARN( "unotools.i18n", "loadModuleByImplName: Exception caught " << e.Message );
176 : }
177 :
178 5 : bFirstCall = false;
179 5 : }
180 :
181 32493 : bool TransliterationWrapper::equals(
182 : const OUString& rStr1, sal_Int32 nPos1, sal_Int32 nCount1, sal_Int32& nMatch1,
183 : const OUString& rStr2, sal_Int32 nPos2, sal_Int32 nCount2, sal_Int32& nMatch2 ) const
184 : {
185 : try
186 : {
187 32493 : if( bFirstCall )
188 0 : loadModuleImpl();
189 32493 : if ( xTrans.is() )
190 32493 : return xTrans->equals( rStr1, nPos1, nCount1, nMatch1, rStr2, nPos2, nCount2, nMatch2 );
191 : }
192 0 : catch ( const Exception& e )
193 : {
194 : SAL_WARN( "unotools.i18n", "equals: Exception caught " << e.Message );
195 : }
196 0 : return false;
197 : }
198 :
199 87 : sal_Int32 TransliterationWrapper::compareString( const OUString& rStr1, const OUString& rStr2 ) const
200 : {
201 : try
202 : {
203 87 : if( bFirstCall )
204 0 : loadModuleImpl();
205 87 : if ( xTrans.is() )
206 87 : return xTrans->compareString( rStr1, rStr2 );
207 : }
208 0 : catch (const Exception& e)
209 : {
210 : SAL_WARN( "unotools.i18n", "compareString: Exception caught " << e.Message );
211 : }
212 0 : return 0;
213 : }
214 :
215 : // --- helpers --------------------------------------------------------
216 :
217 14939 : bool TransliterationWrapper::isEqual( const OUString& rStr1, const OUString& rStr2 ) const
218 : {
219 14939 : sal_Int32 nMatch1(0), nMatch2(0);
220 : bool bMatch = equals(
221 : rStr1, 0, rStr1.getLength(), nMatch1,
222 14939 : rStr2, 0, rStr2.getLength(), nMatch2 );
223 14939 : return bMatch;
224 : }
225 :
226 17466 : bool TransliterationWrapper::isMatch( const OUString& rStr1, const OUString& rStr2 ) const
227 : {
228 17466 : sal_Int32 nMatch1(0), nMatch2(0);
229 : equals(
230 : rStr1, 0, rStr1.getLength(), nMatch1,
231 17466 : rStr2, 0, rStr2.getLength(), nMatch2 );
232 17466 : return (nMatch1 <= nMatch2) && (nMatch1 == rStr1.getLength());
233 : }
234 :
235 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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