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