i18npool/source/search/textsearch.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_I18NPOOL_SOURCE_SEARCH_TEXTSEARCH_HXX
  21 #define INCLUDED_I18NPOOL_SOURCE_SEARCH_TEXTSEARCH_HXX
  22
  23 #include <cppuhelper/implbase.hxx>
  24 #include <com/sun/star/util/XTextSearch2.hpp>
  25 #include <com/sun/star/lang/XServiceInfo.hpp>
  26
  27 #include <map>
  28 #include <memory>
  29
  30 #include <unicode/regex.h>
  31 #include <unicode/unistr.h>
  32 #include <unicode/uversion.h>
  33
  34 namespace com::sun::star::i18n { class XBreakIterator; }
  35 namespace com::sun::star::i18n { class XCharacterClassification; }
  36 namespace com::sun::star::i18n { class XExtendedTransliteration; }
  37 namespace com::sun::star::uno { class XComponentContext; }
  38
  39
  40 typedef U_ICU_NAMESPACE::UnicodeString IcuUniString;
  41
  42 class WLevDistance;
  43 typedef ::std::map< sal_Unicode, sal_Int32 > TextSearchJumpTable;
  44
  45 class TextSearch: public cppu::WeakImplHelper
  46 <
  47     css::util::XTextSearch2,
  48     css::lang::XServiceInfo
  49 >
  50 {
  51     osl::Mutex m_aMutex;
  52     css::uno::Reference < css::uno::XComponentContext > m_xContext;
  53
  54     css::util::SearchOptions2 aSrchPara;
  55     OUString sSrchStr;
  56     OUString sSrchStr2;
  57
  58     mutable css::uno::Reference< css::i18n::XCharacterClassification > xCharClass;
  59
  60     css::uno::Reference< css::i18n::XExtendedTransliteration > xTranslit;
  61     css::uno::Reference< css::i18n::XExtendedTransliteration > xTranslit2;
  62
  63     // define a function pointer for the different search methods
  64     typedef css::util::SearchResult
  65         (SAL_CALL TextSearch::*FnSrch)( const OUString& searchStr,
  66                                 sal_Int32 startPos, sal_Int32 endPos );
  67
  68     FnSrch fnForward;
  69     FnSrch fnBackward;
  70
  71     // to fix UX regression, U+0027 matches also U+2019 in non-regex search
  72     bool bSearchApostrophe;
  73
  74     // Members and methods for the normal (Boyer-Moore) search
  75     std::unique_ptr<TextSearchJumpTable> pJumpTable;
  76     std::unique_ptr<TextSearchJumpTable> pJumpTable2;
  77     bool bIsForwardTab;
  78     bool bUsePrimarySrchStr;
  79     void MakeForwardTab();
  80     void MakeForwardTab2();
  81     void MakeBackwardTab();
  82     void MakeBackwardTab2();
  83     sal_Int32 GetDiff( const sal_Unicode ) const;
  84     /// @throws css::uno::RuntimeException
  85     css::util::SearchResult SAL_CALL
  86         NSrchFrwrd( const OUString& searchStr,
  87                                 sal_Int32 startPos, sal_Int32 endPos );
  88     /// @throws css::uno::RuntimeException
  89     css::util::SearchResult SAL_CALL
  90         NSrchBkwrd( const OUString& searchStr,
  91                                 sal_Int32 startPos, sal_Int32 endPos );
  92
  93     // Members and methods for the regular expression search
  94     std::unique_ptr<icu::RegexMatcher> pRegexMatcher;
  95     /// @throws css::uno::RuntimeException
  96     css::util::SearchResult SAL_CALL
  97         RESrchFrwrd( const OUString& searchStr,
  98                                 sal_Int32 startPos, sal_Int32 endPos );
  99     /// @throws css::uno::RuntimeException
 100     css::util::SearchResult SAL_CALL
 101         RESrchBkwrd( const OUString& searchStr,
 102                                 sal_Int32 startPos, sal_Int32 endPos );
 103     void RESrchPrepare( const css::util::SearchOptions2&);
 104
 105     // Members and methods for the "Weight Levenshtein-Distance" search
 106     int nLimit;
 107     std::unique_ptr<WLevDistance> pWLD;
 108     css::uno::Reference < css::i18n::XBreakIterator > xBreak;
 109     /// @throws css::uno::RuntimeException
 110     css::util::SearchResult SAL_CALL
 111         ApproxSrchFrwrd( const OUString& searchStr,
 112                                 sal_Int32 startPos, sal_Int32 endPos );
 113     /// @throws css::uno::RuntimeException
 114     css::util::SearchResult SAL_CALL
 115         ApproxSrchBkwrd( const OUString& searchStr,
 116                                 sal_Int32 startPos, sal_Int32 endPos );
 117
 118     // Members and methods for the wildcard search
 119     OUString    maWildcardReversePattern;
 120     OUString    maWildcardReversePattern2;
 121     sal_uInt32  mcWildcardEscapeChar;
 122     bool        mbWildcardAllowSubstring;
 123     /// @throws css::uno::RuntimeException
 124     css::util::SearchResult SAL_CALL
 125         WildcardSrchFrwrd( const OUString& searchStr,
 126                                 sal_Int32 startPos, sal_Int32 endPos );
 127     /// @throws css::uno::RuntimeException
 128     css::util::SearchResult SAL_CALL
 129         WildcardSrchBkwrd( const OUString& searchStr,
 130                                 sal_Int32 startPos, sal_Int32 endPos );
 131
 132     bool IsDelimiter( const OUString& rStr, sal_Int32 nPos ) const;
 133
 134     bool checkCTLStart, checkCTLEnd;
 135     /// @throws css::uno::RuntimeException
 136     bool isCellStart(const OUString& searchStr, sal_Int32 nPos);
 137
 138 public:
 139     explicit TextSearch(
 140         const css::uno::Reference < css::uno::XComponentContext >& rxContext );
 141
 142     virtual ~TextSearch() override;
 143
 144     // XTextSearch
 145     virtual void SAL_CALL
 146         setOptions( const css::util::SearchOptions& options ) override;
 147     virtual css::util::SearchResult SAL_CALL
 148         searchForward( const OUString& searchStr,
 149                         sal_Int32 startPos, sal_Int32 endPos ) override;
 150     virtual css::util::SearchResult SAL_CALL
 151         searchBackward( const OUString& searchStr,
 152                         sal_Int32 startPos, sal_Int32 endPos ) override;
 153
 154     // XTextSearch2
 155     virtual void SAL_CALL
 156         setOptions2( const css::util::SearchOptions2& options ) override;
 157
 158     //XServiceInfo
 159     virtual OUString SAL_CALL getImplementationName() override;
 160     virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
 161     virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
 162 };
 163
 164 #endif
 165
 166 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */