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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 .
*/
#if defined(_WIN32)
#if !defined WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#endif
#include <osl/thread.h>
#include <osl/file.hxx>
#include <osl/process.h>
#include <tools/debug.hxx>
#include <tools/urlobj.hxx>
#include <i18nlangtag/languagetag.hxx>
#include <i18nlangtag/mslangid.hxx>
#include <unotools/bootstrap.hxx>
#include <unotools/lingucfg.hxx>
#include <unotools/pathoptions.hxx>
#include <rtl/bootstrap.hxx>
#include <rtl/ustring.hxx>
#include <rtl/string.hxx>
#include <rtl/tencinfo.h>
#include <linguistic/misc.hxx>
#include <set>
#include <vector>
#include <string.h>
#include "lingutil.hxx"
#include <sal/macros.h>
using namespace ::com::sun::star;
#if defined(_WIN32)
OString Win_AddLongPathPrefix( const OString &rPathName )
{
constexpr OStringLiteral WIN32_LONG_PATH_PREFIX = "\\\\?\\";
if (!rPathName.match(WIN32_LONG_PATH_PREFIX)) return WIN32_LONG_PATH_PREFIX + rPathName;
return rPathName;
}
#endif //defined(_WIN32)
#if defined SYSTEM_DICTS || defined IOS
// find old style dictionaries in system directories
static void GetOldStyleDicsInDir(
OUString const & aSystemDir, OUString const & aFormatName,
OUString const & aSystemSuffix, OUString const & aSystemPrefix,
std::set< OUString >& aDicLangInUse,
std::vector< SvtLinguConfigDictionaryEntry >& aRes )
{
osl::Directory aSystemDicts(aSystemDir);
if (aSystemDicts.open() != osl::FileBase::E_None)
return;
osl::DirectoryItem aItem;
osl::FileStatus aFileStatus(osl_FileStatus_Mask_FileURL);
while (aSystemDicts.getNextItem(aItem) == osl::FileBase::E_None)
{
aItem.getFileStatus(aFileStatus);
OUString sPath = aFileStatus.getFileURL();
if (sPath.endsWith(aSystemSuffix))
{
sal_Int32 nStartIndex = sPath.lastIndexOf('/') + 1;
if (!sPath.match(aSystemPrefix, nStartIndex))
continue;
OUString sChunk = sPath.copy(nStartIndex + aSystemPrefix.getLength(),
sPath.getLength() - aSystemSuffix.getLength() -
nStartIndex - aSystemPrefix.getLength());
if (sChunk.isEmpty())
continue;
// We prefer (now) to use language tags.
// Avoid feeding in the older LANG_REGION scheme to the BCP47
// ctor as that triggers use of liblangtag and initializes its
// database which we do not want during startup. Convert
// instead.
sChunk = sChunk.replace( '_', '-');
// There's a known exception to the rule, the dreaded
// hu_HU_u8.dic of the myspell-hu package, see
// http://packages.debian.org/search?arch=any&searchon=contents&keywords=hu_HU_u8.dic
// This was ignored because unknown in the old implementation,
// truncate to the known locale and either insert because hu_HU
// wasn't encountered yet, or skip because it was. It doesn't
// really matter because the proper new-style hu_HU dictionary
// will take precedence anyway if installed with a Hungarian
// languagepack. Again, this is only to not pull in all
// liblangtag and stuff during startup, the result would be
// !isValidBcp47() and the dictionary ignored.
if (sChunk == "hu-HU-u8")
sChunk = "hu-HU";
LanguageTag aLangTag(sChunk, true);
if (!aLangTag.isValidBcp47())
continue;
// Thus we first get the language of the dictionary
const OUString& aLocaleName(aLangTag.getBcp47());
if (aDicLangInUse.insert(aLocaleName).second)
{
// add the dictionary to the resulting vector
SvtLinguConfigDictionaryEntry aDicEntry;
aDicEntry.aLocations = { sPath };
aDicEntry.aLocaleNames = { aLocaleName };
aDicEntry.aFormatName = aFormatName;
aRes.push_back( aDicEntry );
}
}
}
}
#endif
// build list of old style dictionaries (not as extensions) to use.
// User installed dictionaries (the ones residing in the user paths)
// will get precedence over system installed ones for the same language.
std::vector< SvtLinguConfigDictionaryEntry > GetOldStyleDics( const char *pDicType )
{
std::vector< SvtLinguConfigDictionaryEntry > aRes;
if (!pDicType)
return aRes;
OUString aFormatName;
OUString aDicExtension;
#if defined SYSTEM_DICTS || defined IOS
OUString aSystemDir;
OUString aSystemPrefix;
OUString aSystemSuffix;
#endif
if (strcmp( pDicType, "DICT" ) == 0)
{
aFormatName = "DICT_SPELL";
aDicExtension = ".dic";
#ifdef SYSTEM_DICTS
aSystemDir = DICT_SYSTEM_DIR;
aSystemSuffix = aDicExtension;
#elif defined IOS
aSystemDir = "$BRAND_BASE_DIR/share/spell";
rtl::Bootstrap::expandMacros(aSystemDir);
aSystemSuffix = ".dic";
#endif
}
else if (strcmp( pDicType, "HYPH" ) == 0)
{
aFormatName = "DICT_HYPH";
aDicExtension = ".dic";
#ifdef SYSTEM_DICTS
aSystemDir = HYPH_SYSTEM_DIR;
aSystemPrefix = "hyph_";
aSystemSuffix = aDicExtension;
#endif
}
else if (strcmp( pDicType, "THES" ) == 0)
{
aFormatName = "DICT_THES";
aDicExtension = ".dat";
#ifdef SYSTEM_DICTS
aSystemDir = THES_SYSTEM_DIR;
aSystemPrefix = "th_";
aSystemSuffix = "_v2.dat";
#elif defined IOS
aSystemDir = "$BRAND_BASE_DIR/share/thes";
rtl::Bootstrap::expandMacros(aSystemDir);
aSystemPrefix = "th_";
aSystemSuffix = "_v2.dat";
#endif
}
if (aFormatName.isEmpty() || aDicExtension.isEmpty())
return aRes;
#if defined SYSTEM_DICTS || defined IOS
// set of languages to remember the language where it is already
// decided to make use of the dictionary.
std::set< OUString > aDicLangInUse;
#ifndef IOS
// follow the hunspell tool's example and check DICPATH for preferred dictionaries
rtl_uString * pSearchPath = nullptr;
osl_getEnvironment(OUString("DICPATH").pData, &pSearchPath);
if (pSearchPath)
{
OUString aSearchPath(pSearchPath);
rtl_uString_release(pSearchPath);
sal_Int32 nIndex = 0;
do
{
OUString aSystem( aSearchPath.getToken(0, ':', nIndex) );
OUString aCWD;
OUString aRelative;
OUString aAbsolute;
if (!utl::Bootstrap::getProcessWorkingDir(aCWD))
continue;
if (osl::FileBase::getFileURLFromSystemPath(aSystem, aRelative)
!= osl::FileBase::E_None)
continue;
if (osl::FileBase::getAbsoluteFileURL(aCWD, aRelative, aAbsolute)
!= osl::FileBase::E_None)
continue;
// GetOldStyleDicsInDir will make sure the dictionary is the right
// type based on its prefix, that way hyphen, mythes and regular
// dictionaries can live in one directory
GetOldStyleDicsInDir(aAbsolute, aFormatName, aSystemSuffix,
aSystemPrefix, aDicLangInUse, aRes);
}
while (nIndex != -1);
}
#endif
// load system directories last so that DICPATH prevails
GetOldStyleDicsInDir(aSystemDir, aFormatName, aSystemSuffix, aSystemPrefix,
aDicLangInUse, aRes);
#endif
return aRes;
}
void MergeNewStyleDicsAndOldStyleDics(
std::vector< SvtLinguConfigDictionaryEntry > &rNewStyleDics,
const std::vector< SvtLinguConfigDictionaryEntry > &rOldStyleDics )
{
// get list of languages supported by new style dictionaries
std::set< OUString > aNewStyleLanguages;
for (auto const& newStyleDic : rNewStyleDics)
{
const uno::Sequence< OUString > aLocaleNames(newStyleDic.aLocaleNames);
sal_Int32 nLocaleNames = aLocaleNames.getLength();
for (sal_Int32 k = 0; k < nLocaleNames; ++k)
{
aNewStyleLanguages.insert( aLocaleNames[k] );
}
}
// now check all old style dictionaries if they will add a not yet
// added language. If so add them to the resulting vector
for (auto const& oldStyleDic : rOldStyleDics)
{
sal_Int32 nOldStyleDics = oldStyleDic.aLocaleNames.getLength();
// old style dics should only have one language listed...
DBG_ASSERT( nOldStyleDics, "old style dictionary with more than one language found!");
if (nOldStyleDics > 0)
{
if (linguistic::LinguIsUnspecified( oldStyleDic.aLocaleNames[0]))
{
OSL_FAIL( "old style dictionary with invalid language found!" );
continue;
}
// language not yet added?
if (aNewStyleLanguages.find( oldStyleDic.aLocaleNames[0] ) == aNewStyleLanguages.end())
rNewStyleDics.push_back(oldStyleDic);
}
else
{
OSL_FAIL( "old style dictionary with no language found!" );
}
}
}
rtl_TextEncoding getTextEncodingFromCharset(const char* pCharset)
{
// default result: used to indicate that we failed to get the proper encoding
rtl_TextEncoding eRet = RTL_TEXTENCODING_DONTKNOW;
if (pCharset)
{
eRet = rtl_getTextEncodingFromMimeCharset(pCharset);
if (eRet == RTL_TEXTENCODING_DONTKNOW)
eRet = rtl_getTextEncodingFromUnixCharset(pCharset);
if (eRet == RTL_TEXTENCODING_DONTKNOW)
{
if (strcmp("ISCII-DEVANAGARI", pCharset) == 0)
eRet = RTL_TEXTENCODING_ISCII_DEVANAGARI;
}
}
return eRet;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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