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Diffstat (limited to 'sc/source/core/tool/cellkeytranslator.cxx')
-rw-r--r-- | sc/source/core/tool/cellkeytranslator.cxx | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/sc/source/core/tool/cellkeytranslator.cxx b/sc/source/core/tool/cellkeytranslator.cxx new file mode 100644 index 000000000..1192e3c04 --- /dev/null +++ b/sc/source/core/tool/cellkeytranslator.cxx @@ -0,0 +1,232 @@ +/* -*- 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 <memory> +#include <global.hxx> +#include <cellkeytranslator.hxx> +#include <comphelper/processfactory.hxx> +#include <i18nlangtag/lang.h> +#include <i18nutil/transliteration.hxx> +#include <rtl/ustring.hxx> +#include <unotools/syslocale.hxx> +#include <com/sun/star/uno/Sequence.hxx> + +using ::com::sun::star::uno::Sequence; + +using namespace ::com::sun::star; + +namespace { + +enum LocaleMatch +{ + LOCALE_MATCH_NONE = 0, + LOCALE_MATCH_LANG, + LOCALE_MATCH_LANG_SCRIPT, + LOCALE_MATCH_LANG_SCRIPT_COUNTRY, + LOCALE_MATCH_ALL +}; + +} + +static LocaleMatch lclLocaleCompare(const lang::Locale& rLocale1, const LanguageTag& rLanguageTag2) +{ + LocaleMatch eMatchLevel = LOCALE_MATCH_NONE; + LanguageTag aLanguageTag1( rLocale1); + + if ( aLanguageTag1.getLanguage() == rLanguageTag2.getLanguage() ) + eMatchLevel = LOCALE_MATCH_LANG; + else + return eMatchLevel; + + if ( aLanguageTag1.getScript() == rLanguageTag2.getScript() ) + eMatchLevel = LOCALE_MATCH_LANG_SCRIPT; + else + return eMatchLevel; + + if ( aLanguageTag1.getCountry() == rLanguageTag2.getCountry() ) + eMatchLevel = LOCALE_MATCH_LANG_SCRIPT_COUNTRY; + else + return eMatchLevel; + + if (aLanguageTag1 == rLanguageTag2) + return LOCALE_MATCH_ALL; + + return eMatchLevel; +} + +ScCellKeyword::ScCellKeyword(const char* pName, OpCode eOpCode, const lang::Locale& rLocale) : + mpName(pName), + meOpCode(eOpCode), + mrLocale(rLocale) +{ +} + +::std::unique_ptr<ScCellKeywordTranslator> ScCellKeywordTranslator::spInstance; + +static void lclMatchKeyword(OUString& rName, const ScCellKeywordHashMap& aMap, + OpCode eOpCode, const lang::Locale* pLocale) +{ + ScCellKeywordHashMap::const_iterator itrEnd = aMap.end(); + ScCellKeywordHashMap::const_iterator itr = aMap.find(rName); + + if ( itr == itrEnd || itr->second.empty() ) + // No candidate strings exist. Bail out. + return; + + if ( eOpCode == ocNone && !pLocale ) + { + // Since no locale nor opcode matching is needed, simply return + // the first item on the list. + rName = OUString::createFromAscii( itr->second.front().mpName ); + return; + } + + LanguageTag aLanguageTag( pLocale ? *pLocale : lang::Locale("","","")); + const char* aBestMatchName = itr->second.front().mpName; + LocaleMatch eLocaleMatchLevel = LOCALE_MATCH_NONE; + bool bOpCodeMatched = false; + + for (auto const& elem : itr->second) + { + if ( eOpCode != ocNone && pLocale ) + { + if (elem.meOpCode == eOpCode) + { + LocaleMatch eLevel = lclLocaleCompare(elem.mrLocale, aLanguageTag); + if ( eLevel == LOCALE_MATCH_ALL ) + { + // Name with matching opcode and locale found. + rName = OUString::createFromAscii( elem.mpName ); + return; + } + else if ( eLevel > eLocaleMatchLevel ) + { + // Name with a better matching locale. + eLocaleMatchLevel = eLevel; + aBestMatchName = elem.mpName; + } + else if ( !bOpCodeMatched ) + // At least the opcode matches. + aBestMatchName = elem.mpName; + + bOpCodeMatched = true; + } + } + else if ( eOpCode != ocNone && !pLocale ) + { + if ( elem.meOpCode == eOpCode ) + { + // Name with a matching opcode preferred. + rName = OUString::createFromAscii( elem.mpName ); + return; + } + } + else if ( pLocale ) + { + LocaleMatch eLevel = lclLocaleCompare(elem.mrLocale, aLanguageTag); + if ( eLevel == LOCALE_MATCH_ALL ) + { + // Name with matching locale preferred. + rName = OUString::createFromAscii( elem.mpName ); + return; + } + else if ( eLevel > eLocaleMatchLevel ) + { + // Name with a better matching locale. + eLocaleMatchLevel = eLevel; + aBestMatchName = elem.mpName; + } + } + } + + // No preferred strings found. Return the best matching name. + rName = OUString::createFromAscii(aBestMatchName); +} + +void ScCellKeywordTranslator::transKeyword(OUString& rName, const lang::Locale* pLocale, OpCode eOpCode) +{ + if (!spInstance) + spInstance.reset( new ScCellKeywordTranslator ); + + LanguageType nLang = pLocale ? + LanguageTag(*pLocale).makeFallback().getLanguageType() : ScGlobal::oSysLocale->GetLanguageTag().getLanguageType(); + Sequence<sal_Int32> aOffsets; + rName = spInstance->maTransWrapper.transliterate(rName, nLang, 0, rName.getLength(), &aOffsets); + lclMatchKeyword(rName, spInstance->maStringNameMap, eOpCode, pLocale); +} + +ScCellKeywordTranslator::ScCellKeywordTranslator() : + maTransWrapper( ::comphelper::getProcessComponentContext(), + TransliterationFlags::LOWERCASE_UPPERCASE ) +{ + init(); +} + +ScCellKeywordTranslator::~ScCellKeywordTranslator() +{ +} + +struct TransItem +{ + const sal_Unicode* from; + const char* to; + OpCode func; +}; + +void ScCellKeywordTranslator::init() +{ + ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); + + // The file below has been autogenerated by sc/workben/celltrans/parse.py. + // To add new locale keywords, edit sc/workben/celltrans/keywords_utf16.txt + // and re-run the parse.py script. + // + // All keywords must be uppercase, and the mapping must be from the + // localized keyword to the English keyword. + // + // Make sure that the original keyword file (keywords_utf16.txt) is + // encoded in UCS-2/UTF-16! + + #include "cellkeywords.inl" +} + +void ScCellKeywordTranslator::addToMap(const OUString& rKey, const char* pName, const lang::Locale& rLocale, OpCode eOpCode) +{ + ScCellKeyword aKeyItem( pName, eOpCode, rLocale ); + + ScCellKeywordHashMap::iterator itrEnd = maStringNameMap.end(); + ScCellKeywordHashMap::iterator itr = maStringNameMap.find(rKey); + + if ( itr == itrEnd ) + { + // New keyword. + std::vector<ScCellKeyword> aVector { aKeyItem }; + maStringNameMap.emplace(rKey, aVector); + } + else + itr->second.push_back(aKeyItem); +} + +void ScCellKeywordTranslator::addToMap(const TransItem* pItems, const lang::Locale& rLocale) +{ + for (sal_uInt16 i = 0; pItems[i].from != nullptr; ++i) + addToMap(OUString(pItems[i].from), pItems[i].to, rLocale, pItems[i].func); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |