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 <boost/scoped_ptr.hpp>
  21 #include <comphelper/processfactory.hxx>
  22 #include <string.h>
  23 #include "ordinalsuffix.hxx"
  24
  25 #include <unicode/rbnf.h>
  26 #include <unicode/normlzr.h>
  27
  28 #define CSTR( ouStr ) rtl::OUStringToOString( ouStr, RTL_TEXTENCODING_UTF8 ).getStr( )
  29
  30 using namespace ::com::sun::star::i18n;
  31 using namespace ::com::sun::star::uno;
  32 using namespace ::com::sun::star;
  33 using namespace ::rtl;
  34
  35 namespace com { namespace sun { namespace star { namespace i18n {
  36
  37
  38 OrdinalSuffix::OrdinalSuffix(
  39         const com::sun::star::uno::Reference < com::sun::star::lang::XMultiServiceFactory >& rxMSF) :
  40     _xServiceManager( rxMSF )
  41 {
  42 }
  43
  44 OrdinalSuffix::~OrdinalSuffix()
  45 {
  46 }
  47
  48 namespace
  49 {
  50     OUString mungeUnicodeStringToOUString(const icu::UnicodeString &rIn, UErrorCode &rCode)
  51     {
  52         // Apply NFKC normalization to get normal letters
  53         icu::UnicodeString normalized;
  54         icu::Normalizer::normalize(rIn, UNORM_NFKC, 0, normalized, rCode);
  55         // Convert the normalized UnicodeString to OUString
  56         OUString sRet = (U_SUCCESS(rCode))
  57             ? OUString(reinterpret_cast<const sal_Unicode *>(normalized.getBuffer()), normalized.length())
  58             : OUString();
  59         // replace any minus signs with hyphen-minus so that negative numbers
  60         // from the simple number formatter and heavy-duty pattern formatter
  61         // agree as to their negative number sign
  62         return sRet.replace(0x2212, '-');
  63     }
  64 }
  65
  66 /*
  67  * For this method to properly return the ordinal suffix for other locales
  68  * than english ones, ICU 4.2+ has to be used.
  69  */
  70 uno::Sequence< OUString > SAL_CALL OrdinalSuffix::getOrdinalSuffix( sal_Int32 nNumber,
  71         const lang::Locale &aLocale ) throw( RuntimeException )
  72 {
  73     uno::Sequence< OUString > retValue;
  74
  75     // Get the value from ICU
  76     UErrorCode nCode = U_ZERO_ERROR;
  77     const icu::Locale rIcuLocale(
  78             CSTR( aLocale.Language ),
  79             CSTR( aLocale.Country ),
  80             CSTR( aLocale.Variant ) );
  81
  82     icu::RuleBasedNumberFormat formatter(icu::URBNF_ORDINAL, rIcuLocale, nCode);
  83     if (!U_SUCCESS(nCode))
  84         return retValue;
  85
  86     boost::scoped_ptr<NumberFormat> xNumberFormat(icu::NumberFormat::createInstance(rIcuLocale, nCode));
  87     if (!U_SUCCESS(nCode))
  88         return retValue;
  89
  90     icu::UnicodeString sFormatWithNoOrdinal;
  91     icu::Formattable ftmNumber((int32_t)nNumber);
  92     icu::FieldPosition icuPosA;
  93     xNumberFormat->format(ftmNumber, sFormatWithNoOrdinal, icuPosA, nCode);
  94     if (!U_SUCCESS(nCode))
  95         return retValue;
  96
  97     OUString sValueWithNoOrdinal = mungeUnicodeStringToOUString(sFormatWithNoOrdinal, nCode);
  98     if (!U_SUCCESS(nCode))
  99         return retValue;
 100
 101     int32_t nRuleSets = formatter.getNumberOfRuleSetNames( );
 102     for (int32_t i = 0; i < nRuleSets; ++i)
 103     {
 104         icu::UnicodeString ruleSet = formatter.getRuleSetName(i);
 105
 106         // format the string
 107         icu::UnicodeString sFormatWithOrdinal;
 108         icu::FieldPosition icuPosB;
 109         formatter.format((int32_t)nNumber, ruleSet, sFormatWithOrdinal, icuPosB, nCode);
 110
 111         if (!U_SUCCESS(nCode))
 112             continue;
 113
 114         OUString sValueWithOrdinal = mungeUnicodeStringToOUString(sFormatWithOrdinal, nCode);
 115         if (!U_SUCCESS(nCode))
 116             continue;
 117
 118         // fdo#54486 lets make sure that the ordinal format and the non-ordinal
 119         // format match at the start, so that the expectation can be verified
 120         // that there is some trailing "ordinal suffix" which can be extracted
 121         bool bSimpleOrdinalSuffix = sValueWithOrdinal.startsWith(sValueWithNoOrdinal);
 122
 123         SAL_WARN_IF(!bSimpleOrdinalSuffix, "i18npool", "ordinal " <<
 124             sValueWithOrdinal << " didn't start with expected " <<
 125             sValueWithNoOrdinal << " prefix");
 126
 127         if (!bSimpleOrdinalSuffix)
 128             continue;
 129
 130         // Remove the number to get the prefix
 131         sal_Int32 len = sValueWithNoOrdinal.getLength();
 132
 133         sal_Int32 newLength = retValue.getLength() + 1;
 134         retValue.realloc( newLength );
 135         retValue[ newLength - 1 ] = sValueWithOrdinal.copy( len );
 136     }
 137
 138     return retValue;
 139 }
 140
 141 const sal_Char cOrdinalSuffix[] = "com.sun.star.i18n.OrdinalSuffix";
 142
 143 OUString SAL_CALL OrdinalSuffix::getImplementationName(void) throw( RuntimeException )
 144 {
 145     return OUString::createFromAscii(cOrdinalSuffix);
 146 }
 147
 148 sal_Bool SAL_CALL OrdinalSuffix::supportsService( const OUString& rServiceName) throw( RuntimeException )
 149 {
 150     return !rServiceName.compareToAscii(cOrdinalSuffix);
 151 }
 152
 153 Sequence< OUString > SAL_CALL OrdinalSuffix::getSupportedServiceNames(void) throw( RuntimeException )
 154 {
 155     Sequence< OUString > aRet(1);
 156     aRet[0] = OUString::createFromAscii(cOrdinalSuffix);
 157     return aRet;
 158 }
 159
 160 } } } }
 161
 162 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */