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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <com/sun/star/uno/Reference.h>
#include <cppuhelper/factory.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <com/sun/star/lang/XSingleServiceFactory.hpp>
#include <com/sun/star/registry/XRegistryKey.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/linguistic2/LinguServiceManager.hpp>
#include <com/sun/star/linguistic2/XLinguProperties.hpp>
#include <com/sun/star/linguistic2/XSpellChecker1.hpp>
#include <i18nlangtag/languagetag.hxx>
#include <tools/debug.hxx>
#include <comphelper/lok.hxx>
#include <comphelper/processfactory.hxx>
#include <comphelper/sequence.hxx>
#include <osl/mutex.hxx>
#include <osl/thread.h>
#include <unotools/pathoptions.hxx>
#include <unotools/lingucfg.hxx>
#include <unotools/resmgr.hxx>
#include <rtl/string.hxx>
#include <rtl/ustrbuf.hxx>
#include <rtl/textenc.h>
#include <svtools/strings.hrc>
#include "nthesimp.hxx"
#include <linguistic/misc.hxx>
#include <linguistic/lngprops.hxx>
#include "nthesdta.hxx"
#include <vector>
#include <numeric>
#include <set>
#include <string.h>
// XML-header to query SPELLML support
#define SPELLML_SUPPORT "<?xml?>"
using namespace osl;
using namespace com::sun::star;
using namespace com::sun::star::beans;
using namespace com::sun::star::lang;
using namespace com::sun::star::uno;
using namespace com::sun::star::linguistic2;
using namespace linguistic;
static uno::Reference< XLinguServiceManager2 > GetLngSvcMgr_Impl()
{
uno::Reference< XComponentContext > xContext( comphelper::getProcessComponentContext() );
uno::Reference< XLinguServiceManager2 > xRes = LinguServiceManager::create( xContext ) ;
return xRes;
}
Thesaurus::Thesaurus() :
aEvtListeners ( GetLinguMutex() ), pPropHelper(nullptr), bDisposing(false),
prevLocale(LANGUAGE_DONTKNOW)
{
}
Thesaurus::~Thesaurus()
{
mvThesInfo.clear();
if (pPropHelper)
{
pPropHelper->RemoveAsPropListener();
}
}
PropertyHelper_Thesaurus& Thesaurus::GetPropHelper_Impl()
{
if (!pPropHelper)
{
Reference< XLinguProperties > xPropSet = GetLinguProperties();
pPropHelper = new PropertyHelper_Thesaurus( static_cast<XThesaurus *>(this), xPropSet );
pPropHelper->AddAsPropListener(); //! after a reference is established
}
return *pPropHelper;
}
Sequence< Locale > SAL_CALL Thesaurus::getLocales()
{
MutexGuard aGuard( GetLinguMutex() );
// this routine should return the locales supported by the installed
// dictionaries.
if (mvThesInfo.empty())
{
SvtLinguConfig aLinguCfg;
// get list of dictionaries-to-use
std::vector< SvtLinguConfigDictionaryEntry > aDics;
uno::Sequence< OUString > aFormatList;
aLinguCfg.GetSupportedDictionaryFormatsFor( "Thesauri",
"org.openoffice.lingu.new.Thesaurus", aFormatList );
for (const auto& rFormat : std::as_const(aFormatList))
{
std::vector< SvtLinguConfigDictionaryEntry > aTmpDic(
aLinguCfg.GetActiveDictionariesByFormat( rFormat ) );
aDics.insert( aDics.end(), aTmpDic.begin(), aTmpDic.end() );
}
//!! for compatibility with old dictionaries (the ones not using extensions
//!! or new configuration entries, but still using the dictionary.lst file)
//!! Get the list of old style spell checking dictionaries to use...
std::vector< SvtLinguConfigDictionaryEntry > aOldStyleDics(
GetOldStyleDics( "THES" ) );
// to prefer dictionaries with configuration entries we will only
// use those old style dictionaries that add a language that
// is not yet supported by the list of new style dictionaries
MergeNewStyleDicsAndOldStyleDics( aDics, aOldStyleDics );
if (!aDics.empty())
{
// get supported locales from the dictionaries-to-use...
std::set<OUString> aLocaleNamesSet;
for (auto const& dict : aDics)
{
for (const auto& rLocaleName : dict.aLocaleNames)
{
if (!comphelper::LibreOfficeKit::isWhitelistedLanguage(rLocaleName))
continue;
aLocaleNamesSet.insert( rLocaleName );
}
}
// ... and add them to the resulting sequence
std::vector<Locale> aLocalesVec;
aLocalesVec.reserve(aLocaleNamesSet.size());
std::transform(aLocaleNamesSet.begin(), aLocaleNamesSet.end(), std::back_inserter(aLocalesVec),
[](const OUString& localeName) -> Locale { return LanguageTag::convertToLocale(localeName); });
aSuppLocales = comphelper::containerToSequence(aLocalesVec);
//! For each dictionary and each locale we need a separate entry.
//! If this results in more than one dictionary per locale than (for now)
//! it is undefined which dictionary gets used.
//! In the future the implementation should support using several dictionaries
//! for one locale.
sal_Int32 numthes = std::accumulate(aDics.begin(), aDics.end(), 0,
[](const sal_Int32 nSum, const SvtLinguConfigDictionaryEntry& dict) {
return nSum + dict.aLocaleNames.getLength(); });
// add dictionary information
mvThesInfo.resize(numthes);
sal_Int32 k = 0;
for (auto const& dict : aDics)
{
if (dict.aLocaleNames.hasElements() &&
dict.aLocations.hasElements())
{
// currently only one language per dictionary is supported in the actual implementation...
// Thus here we work-around this by adding the same dictionary several times.
// Once for each of its supported locales.
for (const auto& rLocaleName : dict.aLocaleNames)
{
LanguageTag aLanguageTag(rLocaleName);
mvThesInfo[k].aEncoding = RTL_TEXTENCODING_DONTKNOW;
mvThesInfo[k].aLocale = aLanguageTag.getLocale();
mvThesInfo[k].aCharSetInfo.reset( new CharClass( aLanguageTag ) );
// also both files have to be in the same directory and the
// file names must only differ in the extension (.aff/.dic).
// Thus we use the first location only and strip the extension part.
OUString aLocation = dict.aLocations[0];
sal_Int32 nPos = aLocation.lastIndexOf( '.' );
aLocation = aLocation.copy( 0, nPos );
mvThesInfo[k].aName = aLocation;
++k;
}
}
}
DBG_ASSERT( k == numthes, "index mismatch?" );
}
else
{
/* no dictionary found so register no dictionaries */
mvThesInfo.clear();
aSuppLocales.realloc(0);
}
}
return aSuppLocales;
}
sal_Bool SAL_CALL Thesaurus::hasLocale(const Locale& rLocale)
{
MutexGuard aGuard( GetLinguMutex() );
if (!aSuppLocales.hasElements())
getLocales();
return comphelper::findValue(aSuppLocales, rLocale) != -1;
}
Sequence < Reference < css::linguistic2::XMeaning > > SAL_CALL Thesaurus::queryMeanings(
const OUString& qTerm, const Locale& rLocale,
const css::uno::Sequence< css::beans::PropertyValue >& rProperties)
{
MutexGuard aGuard( GetLinguMutex() );
uno::Sequence< Reference< XMeaning > > aMeanings( 1 );
uno::Sequence< Reference< XMeaning > > noMeanings( 0 );
uno::Reference< XLinguServiceManager2 > xLngSvcMgr( GetLngSvcMgr_Impl() );
uno::Reference< XSpellChecker1 > xSpell;
OUString aRTerm(qTerm);
OUString aPTerm(qTerm);
CapType ct = CapType::UNKNOWN;
sal_Int32 stem = 0;
sal_Int32 stem2 = 0;
LanguageType nLanguage = LinguLocaleToLanguage( rLocale );
if (LinguIsUnspecified( nLanguage) || aRTerm.isEmpty())
return noMeanings;
if (!hasLocale( rLocale ))
#ifdef LINGU_EXCEPTIONS
throw( IllegalArgumentException() );
#else
return noMeanings;
#endif
if (prevTerm == qTerm && prevLocale == nLanguage)
return prevMeanings;
mentry * pmean = nullptr;
sal_Int32 nmean = 0;
PropertyHelper_Thesaurus &rHelper = GetPropHelper();
rHelper.SetTmpPropVals( rProperties );
MyThes * pTH = nullptr;
rtl_TextEncoding eEnc = RTL_TEXTENCODING_DONTKNOW;
CharClass * pCC = nullptr;
// find the first thesaurus that matches the locale
for (size_t i =0; i < mvThesInfo.size(); i++)
{
if (rLocale == mvThesInfo[i].aLocale)
{
// open up and initialize this thesaurus if need be
if (!mvThesInfo[i].aThes)
{
OUString datpath = mvThesInfo[i].aName + ".dat";
OUString idxpath = mvThesInfo[i].aName + ".idx";
OUString ndat;
OUString nidx;
osl::FileBase::getSystemPathFromFileURL(datpath,ndat);
osl::FileBase::getSystemPathFromFileURL(idxpath,nidx);
#if defined(_WIN32)
// MyThes waits UTF-8 encoded paths with \\?\ long path prefix.
OString aTmpidx = Win_AddLongPathPrefix(OUStringToOString(nidx, RTL_TEXTENCODING_UTF8));
OString aTmpdat = Win_AddLongPathPrefix(OUStringToOString(ndat, RTL_TEXTENCODING_UTF8));
#else
OString aTmpidx(OU2ENC(nidx,osl_getThreadTextEncoding()));
OString aTmpdat(OU2ENC(ndat,osl_getThreadTextEncoding()));
#endif
mvThesInfo[i].aThes.reset( new MyThes(aTmpidx.getStr(),aTmpdat.getStr()) );
mvThesInfo[i].aEncoding = getTextEncodingFromCharset(mvThesInfo[i].aThes->get_th_encoding());
}
pTH = mvThesInfo[i].aThes.get();
eEnc = mvThesInfo[i].aEncoding;
pCC = mvThesInfo[i].aCharSetInfo.get();
if (pTH)
break;
}
}
// we don't want to work with a default text encoding since following incorrect
// results may occur only for specific text and thus may be hard to notice.
// Thus better always make a clean exit here if the text encoding is in question.
// Hopefully something not working at all will raise proper attention quickly. ;-)
DBG_ASSERT( eEnc != RTL_TEXTENCODING_DONTKNOW, "failed to get text encoding! (maybe incorrect encoding string in file)" );
if (eEnc == RTL_TEXTENCODING_DONTKNOW)
return noMeanings;
while (pTH)
{
// convert word to all lower case for searching
if (!stem)
ct = capitalType(aRTerm, pCC);
OUString nTerm(makeLowerCase(aRTerm, pCC));
OString aTmp( OU2ENC(nTerm, eEnc) );
nmean = pTH->Lookup(aTmp.getStr(),aTmp.getLength(),&pmean);
if (nmean)
aMeanings.realloc( nmean );
mentry * pe = pmean;
OUString codeTerm = qTerm;
Reference< XSpellAlternatives > xTmpRes2;
if (stem)
{
xTmpRes2 = xSpell->spell( "<?xml?><query type='analyze'><word>" +
aPTerm + "</word></query>", static_cast<sal_uInt16>(nLanguage), rProperties );
if (xTmpRes2.is())
{
Sequence<OUString>seq = xTmpRes2->getAlternatives();
if (seq.hasElements())
{
codeTerm = seq[0];
stem2 = 1;
}
}
}
for (int j = 0; j < nmean; j++)
{
int count = pe->count;
if (count)
{
Sequence< OUString > aStr( count );
OUString *pStr = aStr.getArray();
for (int i=0; i < count; i++)
{
OUString sTerm(pe->psyns[i],strlen(pe->psyns[i]),eEnc );
sal_Int32 catpos = sTerm.indexOf('(');
OUString catst;
if (catpos > 2)
{
// remove category name for affixation and casing
catst = " " + sTerm.copy(catpos);
sTerm = sTerm.copy(0, catpos);
sTerm = sTerm.trim();
}
// generate synonyms with affixes
if (stem && stem2)
{
Reference< XSpellAlternatives > xTmpRes = xSpell->spell( "<?xml?><query type='generate'><word>" +
sTerm + "</word>" + codeTerm + "</query>", static_cast<sal_uInt16>(nLanguage), rProperties );
if (xTmpRes.is())
{
Sequence<OUString>seq = xTmpRes->getAlternatives();
if (seq.hasElements())
sTerm = seq[0];
}
}
CapType ct1 = capitalType(sTerm, pCC);
if (CapType::MIXED == ct1)
ct = ct1;
OUString cTerm;
switch (ct)
{
case CapType::ALLCAP:
cTerm = makeUpperCase(sTerm, pCC);
break;
case CapType::INITCAP:
cTerm = makeInitCap(sTerm, pCC);
break;
default:
cTerm = sTerm;
break;
}
OUString aAlt( cTerm + catst);
pStr[i] = aAlt;
}
Meaning * pMn = new Meaning(aRTerm);
OUString dTerm(pe->defn,strlen(pe->defn),eEnc );
pMn->SetMeaning(dTerm);
pMn->SetSynonyms(aStr);
Reference<XMeaning>* pMeaning = aMeanings.getArray();
pMeaning[j] = pMn;
}
pe++;
}
pTH->CleanUpAfterLookup(&pmean,nmean);
if (nmean)
{
prevTerm = qTerm;
prevMeanings = aMeanings;
prevLocale = nLanguage;
return aMeanings;
}
if (stem || !xLngSvcMgr.is())
return noMeanings;
stem = 1;
xSpell.set( xLngSvcMgr->getSpellChecker(), UNO_QUERY );
if (!xSpell.is() || !xSpell->isValid( SPELLML_SUPPORT, static_cast<sal_uInt16>(nLanguage), rProperties ))
return noMeanings;
Reference< XSpellAlternatives > xTmpRes = xSpell->spell( "<?xml?><query type='stem'><word>" +
aRTerm + "</word></query>", static_cast<sal_uInt16>(nLanguage), rProperties );
if (xTmpRes.is())
{
Sequence<OUString>seq = xTmpRes->getAlternatives();
if (seq.hasElements())
{
aRTerm = seq[0]; // XXX Use only the first stem
continue;
}
}
// stem the last word of the synonym (for categories after affixation)
aRTerm = aRTerm.trim();
sal_Int32 pos = aRTerm.lastIndexOf(' ');
if (!pos)
return noMeanings;
xTmpRes = xSpell->spell( "<?xml?><query type='stem'><word>" +
aRTerm.copy(pos + 1) + "</word></query>", static_cast<sal_uInt16>(nLanguage), rProperties );
if (xTmpRes.is())
{
Sequence<OUString>seq = xTmpRes->getAlternatives();
if (seq.hasElements())
{
aPTerm = aRTerm.copy(pos + 1);
aRTerm = aRTerm.copy(0, pos + 1) + seq[0];
#if 0
for (int i = 0; i < seq.getLength(); i++)
{
OString o = OUStringToOString(seq[i], RTL_TEXTENCODING_UTF8);
fprintf(stderr, "%d: %s\n", i + 1, o.pData->buffer);
}
#endif
continue;
}
}
break;
}
return noMeanings;
}
/// @throws Exception
static Reference< XInterface > Thesaurus_CreateInstance(
const Reference< XMultiServiceFactory > & /*rSMgr*/ )
{
Reference< XInterface > xService = static_cast<cppu::OWeakObject*>(new Thesaurus);
return xService;
}
OUString SAL_CALL Thesaurus::getServiceDisplayName(const Locale& rLocale)
{
std::locale loc(Translate::Create("svt", LanguageTag(rLocale)));
return Translate::get(STR_DESCRIPTION_MYTHES, loc);
}
void SAL_CALL Thesaurus::initialize( const Sequence< Any >& rArguments )
{
MutexGuard aGuard( GetLinguMutex() );
if (pPropHelper)
return;
sal_Int32 nLen = rArguments.getLength();
if (1 == nLen)
{
Reference< XLinguProperties > xPropSet;
rArguments.getConstArray()[0] >>= xPropSet;
//! Pointer allows for access of the non-UNO functions.
//! And the reference to the UNO-functions while increasing
//! the ref-count and will implicitly free the memory
//! when the object is no longer used.
pPropHelper = new PropertyHelper_Thesaurus( static_cast<XThesaurus *>(this), xPropSet );
pPropHelper->AddAsPropListener(); //! after a reference is established
}
else
OSL_FAIL( "wrong number of arguments in sequence" );
}
OUString Thesaurus::makeLowerCase(const OUString& aTerm, CharClass const * pCC)
{
if (pCC)
return pCC->lowercase(aTerm);
return aTerm;
}
OUString Thesaurus::makeUpperCase(const OUString& aTerm, CharClass const * pCC)
{
if (pCC)
return pCC->uppercase(aTerm);
return aTerm;
}
OUString Thesaurus::makeInitCap(const OUString& aTerm, CharClass const * pCC)
{
sal_Int32 tlen = aTerm.getLength();
if (pCC && tlen)
{
OUString bTemp = aTerm.copy(0,1);
if (tlen > 1)
{
return ( pCC->uppercase(bTemp, 0, 1)
+ pCC->lowercase(aTerm,1,(tlen-1)) );
}
return pCC->uppercase(bTemp, 0, 1);
}
return aTerm;
}
void SAL_CALL Thesaurus::dispose()
{
MutexGuard aGuard( GetLinguMutex() );
if (!bDisposing)
{
bDisposing = true;
EventObject aEvtObj( static_cast<XThesaurus *>(this) );
aEvtListeners.disposeAndClear( aEvtObj );
if (pPropHelper)
{
pPropHelper->RemoveAsPropListener();
delete pPropHelper;
pPropHelper = nullptr;
}
}
}
void SAL_CALL Thesaurus::addEventListener( const Reference< XEventListener >& rxListener )
{
MutexGuard aGuard( GetLinguMutex() );
if (!bDisposing && rxListener.is())
aEvtListeners.addInterface( rxListener );
}
void SAL_CALL Thesaurus::removeEventListener( const Reference< XEventListener >& rxListener )
{
MutexGuard aGuard( GetLinguMutex() );
if (!bDisposing && rxListener.is())
aEvtListeners.removeInterface( rxListener );
}
// Service specific part
OUString SAL_CALL Thesaurus::getImplementationName()
{
return getImplementationName_Static();
}
sal_Bool SAL_CALL Thesaurus::supportsService( const OUString& ServiceName )
{
return cppu::supportsService(this, ServiceName);
}
Sequence< OUString > SAL_CALL Thesaurus::getSupportedServiceNames()
{
return getSupportedServiceNames_Static();
}
Sequence< OUString > Thesaurus::getSupportedServiceNames_Static()
throw()
{
Sequence< OUString > aSNS { SN_THESAURUS };
return aSNS;
}
extern "C"
{
SAL_DLLPUBLIC_EXPORT void * lnth_component_getFactory(
const char * pImplName, void * pServiceManager, void * /*pRegistryKey*/ )
{
void * pRet = nullptr;
if ( Thesaurus::getImplementationName_Static().equalsAscii( pImplName ) )
{
Reference< XSingleServiceFactory > xFactory =
cppu::createOneInstanceFactory(
static_cast< XMultiServiceFactory * >( pServiceManager ),
Thesaurus::getImplementationName_Static(),
Thesaurus_CreateInstance,
Thesaurus::getSupportedServiceNames_Static());
// acquire, because we return an interface pointer instead of a reference
xFactory->acquire();
pRet = xFactory.get();
}
return pRet;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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