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