Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

2 files changed, 359 insertions, 0 deletions

diff --git a/lingucomponent/source/lingutil/lingutil.cxx b/lingucomponent/source/lingutil/lingutil.cxx
new file mode 100644
index 000000000..f0ab84026
--- /dev/null
+++ b/lingucomponent/source/lingutil/lingutil.cxx
@@ -0,0 +1,304 @@
+/* -*- 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: */
diff --git a/lingucomponent/source/lingutil/lingutil.hxx b/lingucomponent/source/lingutil/lingutil.hxx
new file mode 100644
index 000000000..4c4fe15ec
--- /dev/null
+++ b/lingucomponent/source/lingutil/lingutil.hxx
@@ -0,0 +1,55 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_LINGUCOMPONENT_SOURCE_LINGUTIL_LINGUTIL_HXX
+#define INCLUDED_LINGUCOMPONENT_SOURCE_LINGUTIL_LINGUTIL_HXX
+
+#include <rtl/string.hxx>
+
+#include <vector>
+
+#define OU2ENC(rtlOUString, rtlEncoding) \
+    OString((rtlOUString).getStr(), (rtlOUString).getLength(), \
+    rtlEncoding, RTL_UNICODETOTEXT_FLAGS_UNDEFINED_QUESTIONMARK).getStr()
+
+struct SvtLinguConfigDictionaryEntry;
+
+#if defined(_WIN32)
+
+// to be use to get a path name with long path prefix
+// under Windows for Hunspell, Hyphen and MyThes libraries
+OString Win_AddLongPathPrefix( const OString &rPathName );
+#endif
+
+
+// temporary function, to be removed when new style dictionaries
+// using configuration entries are fully implemented and provided
+std::vector< SvtLinguConfigDictionaryEntry > GetOldStyleDics( const char * pDicType );
+void MergeNewStyleDicsAndOldStyleDics( std::vector< SvtLinguConfigDictionaryEntry > &rNewStyleDics, const std::vector< SvtLinguConfigDictionaryEntry > &rOldStyleDics );
+
+//Find an encoding from a charset string, using
+//rtl_getTextEncodingFromMimeCharset and falling back to
+//rtl_getTextEncodingFromUnixCharset with the addition of
+//ISCII-DEVANAGARI. On failure will return final fallback of
+//RTL_TEXTENCODING_ISO_8859_1
+rtl_TextEncoding getTextEncodingFromCharset(const char* pCharset);
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */