i18npool/source/ordinalsuffix/ordinalsuffix.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 <boost/scoped_ptr.hpp>
  22 #include <i18nlangtag/languagetag.hxx>
  23 #include <i18nlangtag/languagetagicu.hxx>
  24 #include <cppuhelper/supportsservice.hxx>
  25 #include <string.h>
  26 #include "ordinalsuffix.hxx"
  27
  28 #include <unicode/rbnf.h>
  29 #include <unicode/normlzr.h>
  30
  31 using namespace ::com::sun::star::i18n;
  32 using namespace ::com::sun::star::uno;
  33 using namespace ::com::sun::star;
  34
  35 namespace com { namespace sun { namespace star { namespace i18n {
  36
  37
  38 OrdinalSuffix::OrdinalSuffix()
  39 {
  40 }
  41
  42 OrdinalSuffix::~OrdinalSuffix()
  43 {
  44 }
  45
  46 namespace
  47 {
  48     OUString mungeUnicodeStringToOUString(const icu::UnicodeString &rIn, UErrorCode &rCode)
  49     {
  50         // Apply NFKC normalization to get normal letters
  51         icu::UnicodeString normalized;
  52         icu::Normalizer::normalize(rIn, UNORM_NFKC, 0, normalized, rCode);
  53         // Convert the normalized UnicodeString to OUString
  54         OUString sRet = (U_SUCCESS(rCode))
  55             ? OUString(reinterpret_cast<const sal_Unicode *>(normalized.getBuffer()), normalized.length())
  56             : OUString();
  57         // replace any minus signs with hyphen-minus so that negative numbers
  58         // from the simple number formatter and heavy-duty pattern formatter
  59         // agree as to their negative number sign
  60         return sRet.replace(0x2212, '-');
  61     }
  62 }
  63
  64 /*
  65  * For this method to properly return the ordinal suffix for other locales
  66  * than english ones, ICU 4.2+ has to be used.
  67  */
  68 uno::Sequence< OUString > SAL_CALL OrdinalSuffix::getOrdinalSuffix( sal_Int32 nNumber,
  69         const lang::Locale &rLocale ) throw( RuntimeException, std::exception )
  70 {
  71     uno::Sequence< OUString > retValue;
  72
  73     // Get the value from ICU
  74     UErrorCode nCode = U_ZERO_ERROR;
  75     const icu::Locale aIcuLocale( LanguageTagIcu::getIcuLocale( LanguageTag( rLocale)));
  76
  77     icu::RuleBasedNumberFormat formatter(icu::URBNF_ORDINAL, aIcuLocale, nCode);
  78     if (!U_SUCCESS(nCode))
  79         return retValue;
  80
  81     boost::scoped_ptr<NumberFormat> xNumberFormat(icu::NumberFormat::createInstance(aIcuLocale, nCode));
  82     if (!U_SUCCESS(nCode))
  83         return retValue;
  84
  85     icu::UnicodeString sFormatWithNoOrdinal;
  86     icu::Formattable ftmNumber((int32_t)nNumber);
  87     icu::FieldPosition icuPosA;
  88     xNumberFormat->format(ftmNumber, sFormatWithNoOrdinal, icuPosA, nCode);
  89     if (!U_SUCCESS(nCode))
  90         return retValue;
  91
  92     OUString sValueWithNoOrdinal = mungeUnicodeStringToOUString(sFormatWithNoOrdinal, nCode);
  93     if (!U_SUCCESS(nCode))
  94         return retValue;
  95
  96     int32_t nRuleSets = formatter.getNumberOfRuleSetNames( );
  97     for (int32_t i = 0; i < nRuleSets; ++i)
  98     {
  99         icu::UnicodeString ruleSet = formatter.getRuleSetName(i);
 100
 101         // format the string
 102         icu::UnicodeString sFormatWithOrdinal;
 103         icu::FieldPosition icuPosB;
 104         formatter.format((int32_t)nNumber, ruleSet, sFormatWithOrdinal, icuPosB, nCode);
 105
 106         if (!U_SUCCESS(nCode))
 107             continue;
 108
 109         OUString sValueWithOrdinal = mungeUnicodeStringToOUString(sFormatWithOrdinal, nCode);
 110         if (!U_SUCCESS(nCode))
 111             continue;
 112
 113         // fdo#54486 lets make sure that the ordinal format and the non-ordinal
 114         // format match at the start, so that the expectation can be verified
 115         // that there is some trailing "ordinal suffix" which can be extracted
 116         bool bSimpleOrdinalSuffix = sValueWithOrdinal.startsWith(sValueWithNoOrdinal);
 117
 118         SAL_WARN_IF(!bSimpleOrdinalSuffix, "i18npool", "ordinal " <<
 119             sValueWithOrdinal << " didn't start with expected " <<
 120             sValueWithNoOrdinal << " prefix");
 121
 122         if (!bSimpleOrdinalSuffix)
 123             continue;
 124
 125         // Remove the number to get the prefix
 126         sal_Int32 len = sValueWithNoOrdinal.getLength();
 127
 128         sal_Int32 newLength = retValue.getLength() + 1;
 129         retValue.realloc( newLength );
 130         retValue[ newLength - 1 ] = sValueWithOrdinal.copy( len );
 131     }
 132
 133     return retValue;
 134 }
 135
 136 const sal_Char cOrdinalSuffix[] = "com.sun.star.i18n.OrdinalSuffix";
 137
 138 OUString SAL_CALL OrdinalSuffix::getImplementationName(void) throw( RuntimeException, std::exception )
 139 {
 140     return OUString::createFromAscii(cOrdinalSuffix);
 141 }
 142
 143 sal_Bool SAL_CALL OrdinalSuffix::supportsService( const OUString& rServiceName) throw( RuntimeException, std::exception )
 144 {
 145     return cppu::supportsService(this, rServiceName);
 146 }
 147
 148 Sequence< OUString > SAL_CALL OrdinalSuffix::getSupportedServiceNames(void) throw( RuntimeException, std::exception )
 149 {
 150     Sequence< OUString > aRet(1);
 151     aRet[0] = OUString::createFromAscii(cOrdinalSuffix);
 152     return aRet;
 153 }
 154
 155 } } } }
 156
 157 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface * SAL_CALL
 158 com_sun_star_i18n_OrdinalSuffix_get_implementation(
 159     css::uno::XComponentContext *,
 160     css::uno::Sequence<css::uno::Any> const &)
 161 {
 162     return cppu::acquire(new css::i18n::OrdinalSuffix());
 163 }
 164
 165 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */