i18npool/source/collator/chaptercollator.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 // prevent internal compiler error with MSVC6SP3
  21 #include <utility>
  22
  23 #include <cppuhelper/supportsservice.hxx>
  24 #include <chaptercollator.hxx>
  25 #include <com/sun/star/i18n/KCharacterType.hpp>
  26 #include <com/sun/star/i18n/ParseResult.hpp>
  27 #include <com/sun/star/i18n/CharacterClassification.hpp>
  28
  29 using namespace ::com::sun::star::lang;
  30 using namespace ::com::sun::star::uno;
  31 using namespace ::com::sun::star::i18n;
  32 using namespace ::rtl;
  33
  34 ChapterCollator::ChapterCollator( const Reference < XComponentContext >& rxContext ) : CollatorImpl(rxContext)
  35 {
  36     cclass = CharacterClassification::create( rxContext );
  37 }
  38
  39 ChapterCollator::~ChapterCollator()
  40 {
  41 }
  42
  43 sal_Int32 SAL_CALL
  44 ChapterCollator::compareString( const OUString& s1, const OUString& s2) throw(RuntimeException, std::exception)
  45 {
  46     return compareSubstring(s1, 0, s1.getLength(),  s2, 0, s2.getLength());
  47 }
  48
  49 #define DIGIT KCharacterType::DIGIT
  50
  51 sal_Int32 SAL_CALL
  52 ChapterCollator::compareSubstring( const OUString& str1, sal_Int32 off1, sal_Int32 len1,
  53     const OUString& str2, sal_Int32 off2, sal_Int32 len2) throw(RuntimeException, std::exception)
  54 {
  55     if( len1 <= 1 || len2 <= 1 || ! cclass.is() )
  56         return CollatorImpl::compareSubstring( str1, off1,  len1, str2, off2, len2 );
  57
  58     sal_Int32 i1, i2;
  59     for (i1 = len1; i1 && (cclass->getCharacterType(str1, off1+i1-1, nLocale) & DIGIT); i1--) ;
  60     for (i2 = len2; i2 && (cclass->getCharacterType(str2, off2+i2-1, nLocale) & DIGIT); i2--) ;
  61
  62     sal_Int32 ans = CollatorImpl::compareSubstring(str1, off1, i1, str2, off2, i2);
  63     if( ans != 0 )
  64         return ans;
  65
  66     const OUString aAddAllowed("?");
  67     ParseResult res1, res2;
  68     // since parseAnyToken does not take length as parameter, we have to copy
  69     // it to a temp. string.
  70     OUString s1 = str1.copy(off1+i1, len1-i1), s2 = str2.copy(off2+i2, len2-i2);
  71     res1 = cclass->parseAnyToken( s1, 0, nLocale, DIGIT, aAddAllowed, DIGIT, aAddAllowed );
  72     res2 = cclass->parseAnyToken( s2, 0, nLocale, DIGIT, aAddAllowed, DIGIT, aAddAllowed );
  73
  74     return res1.Value == res2.Value ? 0 : res1.Value > res2.Value ? 1 : -1;
  75 }
  76
  77 const sal_Char *cChapCollator = "com.sun.star.i18n.ChapterCollator";
  78
  79 OUString SAL_CALL
  80 ChapterCollator::getImplementationName() throw( RuntimeException, std::exception )
  81 {
  82     return OUString::createFromAscii(cChapCollator);
  83 }
  84
  85 sal_Bool SAL_CALL
  86 ChapterCollator::supportsService(const OUString& rServiceName) throw( RuntimeException, std::exception )
  87 {
  88     return cppu::supportsService(this, rServiceName);
  89 }
  90
  91 Sequence< OUString > SAL_CALL
  92 ChapterCollator::getSupportedServiceNames() throw( RuntimeException, std::exception )
  93 {
  94     Sequence< OUString > aRet(1);
  95     aRet[0] = OUString::createFromAscii(cChapCollator);
  96     return aRet;
  97 }
  98
  99 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */