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| -rw-r--r-- | i18npool/source/search/textsearch.hxx | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/i18npool/source/search/textsearch.hxx b/i18npool/source/search/textsearch.hxx new file mode 100644 index 000000000..43a643537 --- /dev/null +++ b/i18npool/source/search/textsearch.hxx @@ -0,0 +1,161 @@ +/* -*- 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_I18NPOOL_SOURCE_SEARCH_TEXTSEARCH_HXX +#define INCLUDED_I18NPOOL_SOURCE_SEARCH_TEXTSEARCH_HXX + +#include <cppuhelper/implbase.hxx> +#include <com/sun/star/util/XTextSearch2.hpp> +#include <com/sun/star/lang/XServiceInfo.hpp> + +#include <map> +#include <memory> +#include <mutex> + +#include <unicode/regex.h> +#include <unicode/unistr.h> +#include <unicode/uversion.h> + +namespace com::sun::star::i18n { class XBreakIterator; } +namespace com::sun::star::i18n { class XCharacterClassification; } +namespace com::sun::star::i18n { class XExtendedTransliteration; } +namespace com::sun::star::uno { class XComponentContext; } + + +class WLevDistance; +typedef ::std::map< sal_Unicode, sal_Int32 > TextSearchJumpTable; + +class TextSearch: public cppu::WeakImplHelper +< + css::util::XTextSearch2, + css::lang::XServiceInfo +> +{ + std::mutex m_aMutex; + css::uno::Reference < css::uno::XComponentContext > m_xContext; + + css::util::SearchOptions2 aSrchPara; + OUString sSrchStr; + OUString sSrchStr2; + + mutable css::uno::Reference< css::i18n::XCharacterClassification > xCharClass; + + css::uno::Reference< css::i18n::XExtendedTransliteration > xTranslit; + css::uno::Reference< css::i18n::XExtendedTransliteration > xTranslit2; + + // define a function pointer for the different search methods + typedef css::util::SearchResult + (SAL_CALL TextSearch::*FnSrch)( const OUString& searchStr, + sal_Int32 startPos, sal_Int32 endPos ); + + FnSrch fnForward; + FnSrch fnBackward; + + // to fix UX regression, U+0027 matches also U+2019 in non-regex search + bool bSearchApostrophe; + + // Members and methods for the normal (Boyer-Moore) search + std::unique_ptr<TextSearchJumpTable> pJumpTable; + std::unique_ptr<TextSearchJumpTable> pJumpTable2; + bool bIsForwardTab; + bool bUsePrimarySrchStr; + void MakeForwardTab(); + void MakeForwardTab2(); + void MakeBackwardTab(); + void MakeBackwardTab2(); + sal_Int32 GetDiff( const sal_Unicode ) const; + /// @throws css::uno::RuntimeException + css::util::SearchResult SAL_CALL + NSrchFrwrd( const OUString& searchStr, + sal_Int32 startPos, sal_Int32 endPos ); + /// @throws css::uno::RuntimeException + css::util::SearchResult SAL_CALL + NSrchBkwrd( const OUString& searchStr, + sal_Int32 startPos, sal_Int32 endPos ); + + // Members and methods for the regular expression search + std::unique_ptr<icu::RegexMatcher> pRegexMatcher; + /// @throws css::uno::RuntimeException + css::util::SearchResult SAL_CALL + RESrchFrwrd( const OUString& searchStr, + sal_Int32 startPos, sal_Int32 endPos ); + /// @throws css::uno::RuntimeException + css::util::SearchResult SAL_CALL + RESrchBkwrd( const OUString& searchStr, + sal_Int32 startPos, sal_Int32 endPos ); + void RESrchPrepare( const css::util::SearchOptions2&); + + // Members and methods for the "Weight Levenshtein-Distance" search + int nLimit; + std::unique_ptr<WLevDistance> pWLD; + css::uno::Reference < css::i18n::XBreakIterator > xBreak; + /// @throws css::uno::RuntimeException + css::util::SearchResult SAL_CALL + ApproxSrchFrwrd( const OUString& searchStr, + sal_Int32 startPos, sal_Int32 endPos ); + /// @throws css::uno::RuntimeException + css::util::SearchResult SAL_CALL + ApproxSrchBkwrd( const OUString& searchStr, + sal_Int32 startPos, sal_Int32 endPos ); + + // Members and methods for the wildcard search + OUString maWildcardReversePattern; + OUString maWildcardReversePattern2; + sal_uInt32 mcWildcardEscapeChar; + bool mbWildcardAllowSubstring; + /// @throws css::uno::RuntimeException + css::util::SearchResult SAL_CALL + WildcardSrchFrwrd( const OUString& searchStr, + sal_Int32 startPos, sal_Int32 endPos ); + /// @throws css::uno::RuntimeException + css::util::SearchResult SAL_CALL + WildcardSrchBkwrd( const OUString& searchStr, + sal_Int32 startPos, sal_Int32 endPos ); + + bool IsDelimiter( const OUString& rStr, sal_Int32 nPos ) const; + +public: + explicit TextSearch( + const css::uno::Reference < css::uno::XComponentContext >& rxContext ); + + virtual ~TextSearch() override; + + // XTextSearch + virtual void SAL_CALL + setOptions( const css::util::SearchOptions& options ) override; + virtual css::util::SearchResult SAL_CALL + searchForward( const OUString& searchStr, + sal_Int32 startPos, sal_Int32 endPos ) override; + virtual css::util::SearchResult SAL_CALL + searchBackward( const OUString& searchStr, + sal_Int32 startPos, sal_Int32 endPos ) override; + + // XTextSearch2 + virtual void SAL_CALL + setOptions2( const css::util::SearchOptions2& options ) override; + + //XServiceInfo + virtual OUString SAL_CALL getImplementationName() override; + virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override; + virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override; +}; + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |