office-gobmx/i18npool/inc/xdictionary.hxx

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 * $RCSfile: xdictionary.hxx,v $
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#ifndef _XDICTIONARY_H_
#define _XDICTIONARY_H_

#include <sal/types.h>
#include <osl/module.h>

#include <com/sun/star/i18n/Boundary.hpp>

namespace com { namespace sun { namespace star { namespace i18n {

// Whether to use cell boundary code, currently unused but prepared.
#define USE_CELL_BOUNDARY_CODE 0

#define CACHE_MAX 32        // max cache structure number
#define DEFAULT_SIZE 256    // for boundary size, to avoid alloc and release memory

// cache structure.
struct WordBreakCache {
    sal_Int32 length;       // contents length saved here.
    sal_Unicode *contents;      // seperated segment contents.
    sal_Int32* wordboundary;        // word boundaries in segments.
    sal_Int32 size;         // size of wordboundary

    WordBreakCache();
    sal_Bool equals(const sal_Unicode *str, Boundary& boundary);    // checking cached string
};

class xdictionary
{
private:
    const sal_uInt8  * existMark;
    const sal_Int16  * index1;
    const sal_Int32 * index2;
    const sal_Int32 * lenArray;
    const sal_Unicode* dataArea;
    oslModule hModule;
    Boundary boundary;
    sal_Bool japaneseWordBreak;

#if USE_CELL_BOUNDARY_CODE
    // For CTL breakiterator, where the word boundary should not be inside cell.
    sal_Bool useCellBoundary;
    sal_Int32* cellBoundary;
#endif

public:
    xdictionary(const sal_Char *lang);
    ~xdictionary();
    Boundary nextWord( const rtl::OUString& rText, sal_Int32 nPos, sal_Int16 wordType);
    Boundary previousWord( const rtl::OUString& rText, sal_Int32 nPos, sal_Int16 wordType);
    Boundary getWordBoundary( const rtl::OUString& rText, sal_Int32 nPos, sal_Int16 wordType, sal_Bool bDirection );
    void setJapaneseWordBreak();

#if USE_CELL_BOUNDARY_CODE
    void setCellBoundary(sal_Int32* cellArray);
#endif

private:
    WordBreakCache cache[CACHE_MAX];

    sal_Bool        seekSegment(const rtl::OUString& rText, sal_Int32 pos, Boundary& boundary);
    WordBreakCache& getCache(const sal_Unicode *text, Boundary& boundary);
    sal_Bool        exists(const sal_uInt32 u);
    sal_Int32       getLongestMatch(const sal_Unicode *text, sal_Int32 len);
};

} } } }

#endif