xref: /aoo41x/main/i18npool/source/search/textsearch.hxx (revision 7f9f793f)

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#ifndef INCLUDED_I18NPOOL_TEXTSEARCH_HXX
#define INCLUDED_I18NPOOL_TEXTSEARCH_HXX


#include <com/sun/star/util/XTextSearch.hpp>
#include <com/sun/star/i18n/XBreakIterator.hpp>
#include <cppuhelper/implbase2.hxx>		// helper for implementations
#include <com/sun/star/i18n/XExtendedTransliteration.hpp>
#include <com/sun/star/i18n/XCharacterClassification.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>

#include <map>

#include <unicode/regex.h>
using namespace U_ICU_NAMESPACE;
typedef U_ICU_NAMESPACE::UnicodeString IcuUniString;

class WLevDistance;
typedef ::std::map< sal_Unicode, sal_Int32 > TextSearchJumpTable;

//	----------------------------------------------------
//	class TextSearch
//	----------------------------------------------------
class TextSearch: public cppu::WeakImplHelper2
<
	::com::sun::star::util::XTextSearch,
	::com::sun::star::lang::XServiceInfo
>
{
	::com::sun::star::uno::Reference < ::com::sun::star::lang::XMultiServiceFactory > xMSF;

	::com::sun::star::util::SearchOptions aSrchPara;
	::rtl::OUString sSrchStr;
	::rtl::OUString sSrchStr2;

    mutable com::sun::star::uno::Reference<
        com::sun::star::i18n::XCharacterClassification > xCharClass;

    com::sun::star::uno::Reference<
        com::sun::star::i18n::XExtendedTransliteration > xTranslit;
    com::sun::star::uno::Reference<
        com::sun::star::i18n::XExtendedTransliteration > xTranslit2;

	// define a function pointer for the different search nethods
    typedef ::com::sun::star::util::SearchResult
		(SAL_CALL TextSearch:: *FnSrch)( const ::rtl::OUString& searchStr,
								sal_Int32 startPos, sal_Int32 endPos );

	FnSrch fnForward;
	FnSrch fnBackward;

	// Members and methods for the normal (Boyer-Moore) search
	TextSearchJumpTable* pJumpTable;
	TextSearchJumpTable* pJumpTable2;
	bool bIsForwardTab;
	bool bUsePrimarySrchStr;
	void MakeForwardTab();
	void MakeForwardTab2();
	void MakeBackwardTab();
	void MakeBackwardTab2();
	sal_Int32 GetDiff( const sal_Unicode ) const;
	::com::sun::star::util::SearchResult SAL_CALL
		NSrchFrwrd( const ::rtl::OUString& searchStr,
								sal_Int32 startPos, sal_Int32 endPos )
							throw(::com::sun::star::uno::RuntimeException);
	::com::sun::star::util::SearchResult SAL_CALL
		NSrchBkwrd( const ::rtl::OUString& searchStr,
								sal_Int32 startPos, sal_Int32 endPos )
							throw(::com::sun::star::uno::RuntimeException);

	// Members and methods for the regular expression search
	RegexMatcher* pRegexMatcher;
	::com::sun::star::util::SearchResult SAL_CALL
		RESrchFrwrd( const ::rtl::OUString& searchStr,
								sal_Int32 startPos, sal_Int32 endPos )
							throw(::com::sun::star::uno::RuntimeException);
	::com::sun::star::util::SearchResult SAL_CALL
		RESrchBkwrd( const ::rtl::OUString& searchStr,
								sal_Int32 startPos, sal_Int32 endPos )
							throw(::com::sun::star::uno::RuntimeException);
	void RESrchPrepare( const ::com::sun::star::util::SearchOptions&);

	// Members and methods for the "Weight Levenshtein-Distance" search
	int nLimit;
	WLevDistance* pWLD;
	com::sun::star::uno::Reference < com::sun::star::i18n::XBreakIterator > xBreak;
	::com::sun::star::util::SearchResult SAL_CALL
		ApproxSrchFrwrd( const ::rtl::OUString& searchStr,
								sal_Int32 startPos, sal_Int32 endPos )
							throw(::com::sun::star::uno::RuntimeException);
	::com::sun::star::util::SearchResult SAL_CALL
		ApproxSrchBkwrd( const ::rtl::OUString& searchStr,
								sal_Int32 startPos, sal_Int32 endPos )
							throw(::com::sun::star::uno::RuntimeException);

	bool IsDelimiter( const ::rtl::OUString& rStr, sal_Int32 nPos ) const;

	sal_Bool checkCTLStart, checkCTLEnd;
	sal_Bool SAL_CALL isCellStart(const ::rtl::OUString& searchStr, sal_Int32 nPos)
							throw(::com::sun::star::uno::RuntimeException);

public:
	TextSearch(
		const ::com::sun::star::uno::Reference < ::com::sun::star::lang::XMultiServiceFactory >& rxMSF );

	virtual ~TextSearch();

    // Methods
    virtual void SAL_CALL
		setOptions( const ::com::sun::star::util::SearchOptions& options )
							throw(::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::util::SearchResult SAL_CALL
		searchForward( const ::rtl::OUString& searchStr,
						sal_Int32 startPos, sal_Int32 endPos )
							throw(::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::util::SearchResult SAL_CALL
		searchBackward( const ::rtl::OUString& searchStr,
						sal_Int32 startPos, sal_Int32 endPos )
							throw(::com::sun::star::uno::RuntimeException);

    //XServiceInfo
    virtual rtl::OUString SAL_CALL getImplementationName(void)
                throw( ::com::sun::star::uno::RuntimeException );
    virtual sal_Bool SAL_CALL supportsService(const rtl::OUString& ServiceName)
                throw( ::com::sun::star::uno::RuntimeException );
    virtual ::com::sun::star::uno::Sequence< rtl::OUString > SAL_CALL getSupportedServiceNames(void)
                throw( ::com::sun::star::uno::RuntimeException );
};

#endif