i18npool/source/transliteration/transliteration_caseignore.cxx

   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 <com/sun/star/uno/XComponentContext.hpp>
  21 #include <rtl/ref.hxx>
  22
  23 #include <i18nutil/oneToOneMapping.hxx>
  24 #include <i18nutil/casefolding.hxx>
  25 #include <i18nutil/transliteration.hxx>
  26
  27 #include <transliteration_caseignore.hxx>
  28
  29 using namespace ::com::sun::star::uno;
  30 using namespace ::com::sun::star::i18n;
  31 using namespace ::com::sun::star::lang;
  32
  33 namespace i18npool {
  34
  35 Transliteration_caseignore::Transliteration_caseignore()
  36 {
  37     nMappingType = MappingType::FullFolding;
  38     moduleLoaded = TransliterationFlags::NONE;
  39     transliterationName = "case ignore (generic)";
  40     implementationName = "com.sun.star.i18n.Transliteration.Transliteration_caseignore";
  41 }
  42
  43 void SAL_CALL
  44 Transliteration_caseignore::loadModule( TransliterationModules modName, const Locale& rLocale )
  45 {
  46     moduleLoaded |= (TransliterationFlags)modName;
  47     aLocale = rLocale;
  48 }
  49
  50 sal_Int16 SAL_CALL Transliteration_caseignore::getType()
  51 {
  52     // It's NOT TransliterationType::ONE_TO_ONE because it's using casefolding
  53     return TransliterationType::IGNORE;
  54 }
  55
  56
  57 Sequence< OUString > SAL_CALL
  58 Transliteration_caseignore::transliterateRange( const OUString& str1, const OUString& str2 )
  59 {
  60     if (str1.getLength() != 1 || str2.getLength() != 1)
  61         throw RuntimeException();
  62
  63     static rtl::Reference< Transliteration_u2l > u2l(new Transliteration_u2l);
  64     static rtl::Reference< Transliteration_l2u > l2u(new Transliteration_l2u);
  65
  66     u2l->loadModule((TransliterationModules)0, aLocale);
  67     l2u->loadModule((TransliterationModules)0, aLocale);
  68
  69     OUString l1 = u2l->transliterateString2String(str1, 0, str1.getLength());
  70     OUString u1 = l2u->transliterateString2String(str1, 0, str1.getLength());
  71     OUString l2 = u2l->transliterateString2String(str2, 0, str2.getLength());
  72     OUString u2 = l2u->transliterateString2String(str2, 0, str2.getLength());
  73
  74     if ((l1 == u1) && (l2 == u2)) {
  75         Sequence< OUString > r(2);
  76         r[0] = l1;
  77         r[1] = l2;
  78         return r;
  79     } else {
  80         Sequence< OUString > r(4);
  81         r[0] = l1;
  82         r[1] = l2;
  83         r[2] = u1;
  84         r[3] = u2;
  85         return r;
  86     }
  87 }
  88
  89 sal_Bool SAL_CALL
  90 Transliteration_caseignore::equals(
  91     const OUString& str1, sal_Int32 pos1, sal_Int32 nCount1, sal_Int32& nMatch1,
  92     const OUString& str2, sal_Int32 pos2, sal_Int32 nCount2, sal_Int32& nMatch2)
  93 {
  94     return (compare(str1, pos1, nCount1, nMatch1, str2, pos2, nCount2, nMatch2) == 0);
  95 }
  96
  97 sal_Int32 SAL_CALL
  98 Transliteration_caseignore::compareSubstring(
  99     const OUString& str1, sal_Int32 off1, sal_Int32 len1,
 100     const OUString& str2, sal_Int32 off2, sal_Int32 len2)
 101 {
 102     sal_Int32 nMatch1, nMatch2;
 103     return compare(str1, off1, len1, nMatch1, str2, off2, len2, nMatch2);
 104 }
 105
 106
 107 sal_Int32 SAL_CALL
 108 Transliteration_caseignore::compareString(
 109     const OUString& str1,
 110     const OUString& str2)
 111 {
 112     sal_Int32 nMatch1, nMatch2;
 113     return compare(str1, 0, str1.getLength(), nMatch1, str2, 0, str2.getLength(), nMatch2);
 114 }
 115
 116 sal_Int32 SAL_CALL
 117 Transliteration_caseignore::compare(
 118     const OUString& str1, sal_Int32 pos1, sal_Int32 nCount1, sal_Int32& nMatch1,
 119     const OUString& str2, sal_Int32 pos2, sal_Int32 nCount2, sal_Int32& nMatch2)
 120 {
 121     const sal_Unicode *unistr1 = const_cast<sal_Unicode*>(str1.getStr()) + pos1;
 122     const sal_Unicode *unistr2 = const_cast<sal_Unicode*>(str2.getStr()) + pos2;
 123     sal_Unicode c1, c2;
 124     i18nutil::MappingElement e1, e2;
 125     nMatch1 = nMatch2 = 0;
 126
 127 #define NOT_END_OF_STR1 (nMatch1 < nCount1 || e1.current < e1.element.nmap)
 128 #define NOT_END_OF_STR2 (nMatch2 < nCount2 || e2.current < e2.element.nmap)
 129
 130     while (NOT_END_OF_STR1 && NOT_END_OF_STR2) {
 131         c1 = i18nutil::casefolding::getNextChar(unistr1, nMatch1, nCount1, e1, aLocale, nMappingType, moduleLoaded);
 132         c2 = i18nutil::casefolding::getNextChar(unistr2, nMatch2, nCount2, e2, aLocale, nMappingType, moduleLoaded);
 133         if (c1 != c2) {
 134         nMatch1--; nMatch2--;
 135         return c1 > c2 ? 1 : -1;
 136         }
 137     }
 138
 139     return (!NOT_END_OF_STR1 && !NOT_END_OF_STR2) ? 0
 140                 : (NOT_END_OF_STR1 ? 1 : -1);
 141 }
 142
 143 }
 144
 145 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface * SAL_CALL
 146 com_sun_star_i18n_Transliteration_IGNORE_CASE_get_implementation(
 147     css::uno::XComponentContext *,
 148     css::uno::Sequence<css::uno::Any> const &)
 149 {
 150     return cppu::acquire(new i18npool::Transliteration_caseignore());
 151 }
 152
 153 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */