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