linguistic/source/spelldta.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/Reference.h>
  21 #include <com/sun/star/linguistic2/SpellFailure.hpp>
  22 #include <com/sun/star/linguistic2/XSearchableDictionaryList.hpp>
  23 #include <osl/mutex.hxx>
  24 #include <i18nlangtag/languagetag.hxx>
  25
  26 #include <algorithm>
  27 #include <utility>
  28 #include <vector>
  29
  30 #include <linguistic/misc.hxx>
  31 #include <linguistic/spelldta.hxx>
  32 #include <rtl/ref.hxx>
  33
  34
  35 using namespace osl;
  36 using namespace com::sun::star;
  37 using namespace com::sun::star::beans;
  38 using namespace com::sun::star::lang;
  39 using namespace com::sun::star::uno;
  40 using namespace com::sun::star::linguistic2;
  41
  42
  43 namespace linguistic
  44 {
  45
  46 #define MAX_PROPOSALS   40
  47
  48 static bool SeqHasEntry(
  49         const std::vector< OUString > &rSeq,
  50         std::u16string_view rTxt)
  51 {
  52     bool bRes = false;
  53     sal_Int32 nLen = rSeq.size();
  54     for (sal_Int32 i = 0;  i < nLen && !bRes;  ++i)
  55     {
  56         if (rTxt == rSeq[i])
  57             bRes = true;
  58     }
  59     return bRes;
  60 }
  61
  62
  63 void SearchSimilarText( const OUString &rText, LanguageType nLanguage,
  64         Reference< XSearchableDictionaryList > const &xDicList,
  65         std::vector< OUString > & rDicListProps )
  66 {
  67     if (!xDicList.is())
  68         return;
  69
  70     const uno::Sequence< Reference< XDictionary > >
  71             aDics( xDicList->getDictionaries() );
  72     const Reference< XDictionary >
  73             *pDic = aDics.getConstArray();
  74     sal_Int32 nDics = xDicList->getCount();
  75
  76     for (sal_Int32 i = 0;  i < nDics;  i++)
  77     {
  78         Reference< XDictionary > xDic = pDic[i];
  79
  80         LanguageType nLang = LinguLocaleToLanguage( xDic->getLocale() );
  81
  82         if ( xDic.is() && xDic->isActive()
  83             && (nLang == nLanguage  ||  LinguIsUnspecified( nLang)) )
  84         {
  85 #if OSL_DEBUG_LEVEL > 0
  86             DictionaryType  eType = xDic->getDictionaryType();
  87             (void) eType;
  88             assert( eType != DictionaryType_MIXED && "unexpected dictionary type" );
  89 #endif
  90             const Sequence< Reference< XDictionaryEntry > > aEntries = xDic->getEntries();
  91             for (const Reference<XDictionaryEntry>& rEntry : aEntries)
  92             {
  93                 OUString aEntryTxt;
  94                 if (rEntry.is())
  95                 {
  96                     // remove characters used to determine hyphenation positions
  97                     aEntryTxt = rEntry->getDictionaryWord().replaceAll("=", "");
  98                 }
  99                 if (!aEntryTxt.isEmpty()  &&  aEntryTxt.getLength() > 1  &&  LevDistance( rText, aEntryTxt ) <= 2)
 100                     rDicListProps.push_back( aEntryTxt );
 101             }
 102         }
 103     }
 104 }
 105
 106
 107 void SeqRemoveNegEntries( std::vector< OUString > &rSeq,
 108         Reference< XSearchableDictionaryList > const &rxDicList,
 109         LanguageType nLanguage )
 110 {
 111     bool bSthRemoved = false;
 112     sal_Int32 nLen = rSeq.size();
 113     for (sal_Int32 i = 0;  i < nLen;  ++i)
 114     {
 115         Reference< XDictionaryEntry > xNegEntry( SearchDicList( rxDicList,
 116                     rSeq[i], nLanguage, false, true ) );
 117         if (xNegEntry.is())
 118         {
 119             rSeq[i].clear();
 120             bSthRemoved = true;
 121         }
 122     }
 123     if (bSthRemoved)
 124     {
 125         std::vector< OUString > aNew;
 126         // merge sequence without duplicates and empty strings in new empty sequence
 127         rSeq = MergeProposalSeqs( aNew, rSeq );
 128     }
 129 }
 130
 131
 132 std::vector< OUString > MergeProposalSeqs(
 133             std::vector< OUString > &rAlt1,
 134             std::vector< OUString > &rAlt2 )
 135 {
 136     std::vector< OUString > aMerged;
 137
 138     size_t nAltCount1 = rAlt1.size();
 139     size_t nAltCount2 = rAlt2.size();
 140
 141     sal_Int32 nCountNew = std::min<sal_Int32>( nAltCount1 + nAltCount2, sal_Int32(MAX_PROPOSALS) );
 142     aMerged.resize( nCountNew );
 143
 144     sal_Int32 nIndex = 0;
 145     sal_Int32 i = 0;
 146     for (int j = 0;  j < 2;  j++)
 147     {
 148         sal_Int32        nCount  = j == 0 ? nAltCount1 : nAltCount2;
 149         std::vector< OUString >& rAlt   = j == 0 ? rAlt1 : rAlt2;
 150         for (i = 0;  i < nCount  &&  nIndex < MAX_PROPOSALS;  i++)
 151         {
 152             if (!rAlt[i].isEmpty() &&
 153                 !SeqHasEntry(aMerged, rAlt[i] ))
 154                 aMerged[ nIndex++ ] = rAlt[ i ];
 155         }
 156     }
 157     aMerged.resize( nIndex );
 158
 159     return aMerged;
 160 }
 161
 162
 163 SpellAlternatives::SpellAlternatives()
 164 {
 165     nLanguage   = LANGUAGE_NONE;
 166     nType       = SpellFailure::IS_NEGATIVE_WORD;
 167 }
 168
 169
 170 SpellAlternatives::SpellAlternatives(
 171         OUString aWord_, LanguageType nLang,
 172         const Sequence< OUString > &rAlternatives ) :
 173     aAlt        (rAlternatives),
 174     aWord       (std::move(aWord_)),
 175     nType       (SpellFailure::IS_NEGATIVE_WORD),
 176     nLanguage   (nLang)
 177 {
 178 }
 179
 180
 181 SpellAlternatives::~SpellAlternatives()
 182 {
 183 }
 184
 185
 186 OUString SAL_CALL SpellAlternatives::getWord()
 187 {
 188     MutexGuard  aGuard( GetLinguMutex() );
 189     return aWord;
 190 }
 191
 192
 193 Locale SAL_CALL SpellAlternatives::getLocale()
 194 {
 195     MutexGuard  aGuard( GetLinguMutex() );
 196     return LanguageTag::convertToLocale( nLanguage );
 197 }
 198
 199
 200 sal_Int16 SAL_CALL SpellAlternatives::getFailureType()
 201 {
 202     MutexGuard  aGuard( GetLinguMutex() );
 203     return nType;
 204 }
 205
 206
 207 sal_Int16 SAL_CALL SpellAlternatives::getAlternativesCount()
 208 {
 209     MutexGuard  aGuard( GetLinguMutex() );
 210     return static_cast<sal_Int16>(aAlt.getLength());
 211 }
 212
 213
 214 Sequence< OUString > SAL_CALL SpellAlternatives::getAlternatives()
 215 {
 216     MutexGuard  aGuard( GetLinguMutex() );
 217     return aAlt;
 218 }
 219
 220
 221 void SAL_CALL SpellAlternatives::setAlternatives( const uno::Sequence< OUString >& rAlternatives )
 222 {
 223     MutexGuard  aGuard( GetLinguMutex() );
 224     aAlt = rAlternatives;
 225 }
 226
 227
 228 void SAL_CALL SpellAlternatives::setFailureType( sal_Int16 nFailureType )
 229 {
 230     MutexGuard  aGuard( GetLinguMutex() );
 231     nType = nFailureType;
 232 }
 233
 234
 235 void SpellAlternatives::SetWordLanguage(const OUString &rWord, LanguageType nLang)
 236 {
 237     MutexGuard  aGuard( GetLinguMutex() );
 238     aWord = rWord;
 239     nLanguage = nLang;
 240 }
 241
 242
 243 void SpellAlternatives::SetFailureType(sal_Int16 nTypeP)
 244 {
 245     MutexGuard  aGuard( GetLinguMutex() );
 246     nType = nTypeP;
 247 }
 248
 249
 250 void SpellAlternatives::SetAlternatives( const Sequence< OUString > &rAlt )
 251 {
 252     MutexGuard  aGuard( GetLinguMutex() );
 253     aAlt = rAlt;
 254 }
 255
 256
 257 css::uno::Reference < css::linguistic2::XSpellAlternatives > SpellAlternatives::CreateSpellAlternatives(
 258         const OUString &rWord, LanguageType nLang, sal_Int16 nTypeP, const css::uno::Sequence< OUString > &rAlt )
 259 {
 260     rtl::Reference<SpellAlternatives> pAlt = new SpellAlternatives;
 261     pAlt->SetWordLanguage( rWord, nLang );
 262     pAlt->SetFailureType( nTypeP );
 263     pAlt->SetAlternatives( rAlt );
 264     return pAlt;
 265 }
 266
 267
 268 }   // namespace linguistic
 269
 270 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */