i18npool/source/search/textsearch.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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   9  * This file incorporates work covered by the following license notice:
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  14  *   ownership. The ASF licenses this file to you under the Apache
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  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 using namespace U_ICU_NAMESPACE;
  41 typedef U_ICU_NAMESPACE::UnicodeString IcuUniString;
  42
  43 class WLevDistance;
  44 typedef ::std::map< sal_Unicode, sal_Int32 > TextSearchJumpTable;
  45
  46 class TextSearch: public cppu::WeakImplHelper
  47 <
  48     css::util::XTextSearch2,
  49     css::lang::XServiceInfo
  50 >
  51 {
  52     osl::Mutex m_aMutex;
  53     css::uno::Reference < css::uno::XComponentContext > m_xContext;
  54
  55     css::util::SearchOptions2 aSrchPara;
  56     OUString sSrchStr;
  57     OUString sSrchStr2;
  58
  59     mutable css::uno::Reference< css::i18n::XCharacterClassification > xCharClass;
  60
  61     css::uno::Reference< css::i18n::XExtendedTransliteration > xTranslit;
  62     css::uno::Reference< css::i18n::XExtendedTransliteration > xTranslit2;
  63
  64     // define a function pointer for the different search methods
  65     typedef css::util::SearchResult
  66         (SAL_CALL TextSearch:: *FnSrch)( const OUString& searchStr,
  67                                 sal_Int32 startPos, sal_Int32 endPos );
  68
  69     FnSrch fnForward;
  70     FnSrch fnBackward;
  71
  72     // Members and methods for the normal (Boyer-Moore) search
  73     std::unique_ptr<TextSearchJumpTable> pJumpTable;
  74     std::unique_ptr<TextSearchJumpTable> pJumpTable2;
  75     bool bIsForwardTab;
  76     bool bUsePrimarySrchStr;
  77     void MakeForwardTab();
  78     void MakeForwardTab2();
  79     void MakeBackwardTab();
  80     void MakeBackwardTab2();
  81     sal_Int32 GetDiff( const sal_Unicode ) const;
  82     /// @throws css::uno::RuntimeException
  83     css::util::SearchResult SAL_CALL
  84         NSrchFrwrd( const OUString& searchStr,
  85                                 sal_Int32 startPos, sal_Int32 endPos );
  86     /// @throws css::uno::RuntimeException
  87     css::util::SearchResult SAL_CALL
  88         NSrchBkwrd( const OUString& searchStr,
  89                                 sal_Int32 startPos, sal_Int32 endPos );
  90
  91     // Members and methods for the regular expression search
  92     std::unique_ptr<RegexMatcher> pRegexMatcher;
  93     /// @throws css::uno::RuntimeException
  94     css::util::SearchResult SAL_CALL
  95         RESrchFrwrd( const OUString& searchStr,
  96                                 sal_Int32 startPos, sal_Int32 endPos );
  97     /// @throws css::uno::RuntimeException
  98     css::util::SearchResult SAL_CALL
  99         RESrchBkwrd( const OUString& searchStr,
 100                                 sal_Int32 startPos, sal_Int32 endPos );
 101     void RESrchPrepare( const css::util::SearchOptions2&);
 102
 103     // Members and methods for the "Weight Levenshtein-Distance" search
 104     int nLimit;
 105     std::unique_ptr<WLevDistance> pWLD;
 106     css::uno::Reference < css::i18n::XBreakIterator > xBreak;
 107     /// @throws css::uno::RuntimeException
 108     css::util::SearchResult SAL_CALL
 109         ApproxSrchFrwrd( const OUString& searchStr,
 110                                 sal_Int32 startPos, sal_Int32 endPos );
 111     /// @throws css::uno::RuntimeException
 112     css::util::SearchResult SAL_CALL
 113         ApproxSrchBkwrd( const OUString& searchStr,
 114                                 sal_Int32 startPos, sal_Int32 endPos );
 115
 116     // Members and methods for the wildcard search
 117     OUString    maWildcardReversePattern;
 118     OUString    maWildcardReversePattern2;
 119     sal_uInt32  mcWildcardEscapeChar;
 120     bool        mbWildcardAllowSubstring;
 121     /// @throws css::uno::RuntimeException
 122     css::util::SearchResult SAL_CALL
 123         WildcardSrchFrwrd( const OUString& searchStr,
 124                                 sal_Int32 startPos, sal_Int32 endPos );
 125     /// @throws css::uno::RuntimeException
 126     css::util::SearchResult SAL_CALL
 127         WildcardSrchBkwrd( const OUString& searchStr,
 128                                 sal_Int32 startPos, sal_Int32 endPos );
 129
 130     bool IsDelimiter( const OUString& rStr, sal_Int32 nPos ) const;
 131
 132     bool checkCTLStart, checkCTLEnd;
 133     /// @throws css::uno::RuntimeException
 134     bool isCellStart(const OUString& searchStr, sal_Int32 nPos);
 135
 136 public:
 137     explicit TextSearch(
 138         const css::uno::Reference < css::uno::XComponentContext >& rxContext );
 139
 140     virtual ~TextSearch() override;
 141
 142     // XTextSearch
 143     virtual void SAL_CALL
 144         setOptions( const css::util::SearchOptions& options ) override;
 145     virtual css::util::SearchResult SAL_CALL
 146         searchForward( const OUString& searchStr,
 147                         sal_Int32 startPos, sal_Int32 endPos ) override;
 148     virtual css::util::SearchResult SAL_CALL
 149         searchBackward( const OUString& searchStr,
 150                         sal_Int32 startPos, sal_Int32 endPos ) override;
 151
 152     // XTextSearch2
 153     virtual void SAL_CALL
 154         setOptions2( const css::util::SearchOptions2& options ) override;
 155
 156     //XServiceInfo
 157     virtual OUString SAL_CALL getImplementationName() override;
 158     virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
 159     virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
 160 };
 161
 162 #endif
 163
 164 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */