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