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.
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   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_TEXTSEARCH_HXX
  21 #define INCLUDED_I18NPOOL_TEXTSEARCH_HXX
  22
  23 #include <cppuhelper/implbase2.hxx>
  24 #include <com/sun/star/util/XTextSearch.hpp>
  25 #include <com/sun/star/i18n/XBreakIterator.hpp>
  26 #include <com/sun/star/i18n/XExtendedTransliteration.hpp>
  27 #include <com/sun/star/i18n/XCharacterClassification.hpp>
  28 #include <com/sun/star/lang/XServiceInfo.hpp>
  29 #include <com/sun/star/uno/XComponentContext.hpp>
  30
  31 #include <map>
  32
  33 #include <unicode/regex.h>
  34 using namespace U_ICU_NAMESPACE;
  35 typedef U_ICU_NAMESPACE::UnicodeString IcuUniString;
  36
  37 class WLevDistance;
  38 typedef ::std::map< sal_Unicode, sal_Int32 > TextSearchJumpTable;
  39
  40 class TextSearch: public cppu::WeakImplHelper2
  41 <
  42     ::com::sun::star::util::XTextSearch,
  43     ::com::sun::star::lang::XServiceInfo
  44 >
  45 {
  46     ::com::sun::star::uno::Reference < ::com::sun::star::uno::XComponentContext > m_xContext;
  47
  48     ::com::sun::star::util::SearchOptions aSrchPara;
  49     ::rtl::OUString sSrchStr;
  50     ::rtl::OUString sSrchStr2;
  51
  52     mutable com::sun::star::uno::Reference<
  53         com::sun::star::i18n::XCharacterClassification > xCharClass;
  54
  55     com::sun::star::uno::Reference<
  56         com::sun::star::i18n::XExtendedTransliteration > xTranslit;
  57     com::sun::star::uno::Reference<
  58         com::sun::star::i18n::XExtendedTransliteration > xTranslit2;
  59
  60     // define a function pointer for the different search nethods
  61     typedef ::com::sun::star::util::SearchResult
  62         (SAL_CALL TextSearch:: *FnSrch)( const ::rtl::OUString& searchStr,
  63                                 sal_Int32 startPos, sal_Int32 endPos );
  64
  65     FnSrch fnForward;
  66     FnSrch fnBackward;
  67
  68     // Members and methods for the normal (Boyer-Moore) search
  69     TextSearchJumpTable* pJumpTable;
  70     TextSearchJumpTable* pJumpTable2;
  71     bool bIsForwardTab;
  72     bool bUsePrimarySrchStr;
  73     void MakeForwardTab();
  74     void MakeForwardTab2();
  75     void MakeBackwardTab();
  76     void MakeBackwardTab2();
  77     sal_Int32 GetDiff( const sal_Unicode ) const;
  78     ::com::sun::star::util::SearchResult SAL_CALL
  79         NSrchFrwrd( const ::rtl::OUString& searchStr,
  80                                 sal_Int32 startPos, sal_Int32 endPos )
  81                             throw(::com::sun::star::uno::RuntimeException);
  82     ::com::sun::star::util::SearchResult SAL_CALL
  83         NSrchBkwrd( const ::rtl::OUString& searchStr,
  84                                 sal_Int32 startPos, sal_Int32 endPos )
  85                             throw(::com::sun::star::uno::RuntimeException);
  86
  87     // Members and methods for the regular expression search
  88     RegexMatcher* pRegexMatcher;
  89     ::com::sun::star::util::SearchResult SAL_CALL
  90         RESrchFrwrd( const ::rtl::OUString& searchStr,
  91                                 sal_Int32 startPos, sal_Int32 endPos )
  92                             throw(::com::sun::star::uno::RuntimeException);
  93     ::com::sun::star::util::SearchResult SAL_CALL
  94         RESrchBkwrd( const ::rtl::OUString& searchStr,
  95                                 sal_Int32 startPos, sal_Int32 endPos )
  96                             throw(::com::sun::star::uno::RuntimeException);
  97     void RESrchPrepare( const ::com::sun::star::util::SearchOptions&);
  98
  99     // Members and methods for the "Weight Levenshtein-Distance" search
 100     int nLimit;
 101     WLevDistance* pWLD;
 102     com::sun::star::uno::Reference < com::sun::star::i18n::XBreakIterator > xBreak;
 103     ::com::sun::star::util::SearchResult SAL_CALL
 104         ApproxSrchFrwrd( const ::rtl::OUString& searchStr,
 105                                 sal_Int32 startPos, sal_Int32 endPos )
 106                             throw(::com::sun::star::uno::RuntimeException);
 107     ::com::sun::star::util::SearchResult SAL_CALL
 108         ApproxSrchBkwrd( const ::rtl::OUString& searchStr,
 109                                 sal_Int32 startPos, sal_Int32 endPos )
 110                             throw(::com::sun::star::uno::RuntimeException);
 111
 112     bool IsDelimiter( const ::rtl::OUString& rStr, sal_Int32 nPos ) const;
 113
 114     sal_Bool checkCTLStart, checkCTLEnd;
 115     sal_Bool SAL_CALL isCellStart(const ::rtl::OUString& searchStr, sal_Int32 nPos)
 116                             throw(::com::sun::star::uno::RuntimeException);
 117
 118 public:
 119     TextSearch(
 120         const ::com::sun::star::uno::Reference < ::com::sun::star::uno::XComponentContext >& rxContext );
 121
 122     virtual ~TextSearch();
 123
 124     // Methods
 125     virtual void SAL_CALL
 126         setOptions( const ::com::sun::star::util::SearchOptions& options )
 127                             throw(::com::sun::star::uno::RuntimeException);
 128     virtual ::com::sun::star::util::SearchResult SAL_CALL
 129         searchForward( const ::rtl::OUString& searchStr,
 130                         sal_Int32 startPos, sal_Int32 endPos )
 131                             throw(::com::sun::star::uno::RuntimeException);
 132     virtual ::com::sun::star::util::SearchResult SAL_CALL
 133         searchBackward( const ::rtl::OUString& searchStr,
 134                         sal_Int32 startPos, sal_Int32 endPos )
 135                             throw(::com::sun::star::uno::RuntimeException);
 136
 137     //XServiceInfo
 138     virtual rtl::OUString SAL_CALL getImplementationName(void)
 139                 throw( ::com::sun::star::uno::RuntimeException );
 140     virtual sal_Bool SAL_CALL supportsService(const rtl::OUString& ServiceName)
 141                 throw( ::com::sun::star::uno::RuntimeException );
 142     virtual ::com::sun::star::uno::Sequence< rtl::OUString > SAL_CALL getSupportedServiceNames(void)
 143                 throw( ::com::sun::star::uno::RuntimeException );
 144 };
 145
 146 #endif
 147
 148 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */