90 lines
2.8 KiB
C++
90 lines
2.8 KiB
C++
/*
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**********************************************************************
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* Copyright (C) 1999-2000 IBM Corp. All rights reserved.
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**********************************************************************
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* Date Name Description
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* 12/1/99 rgillam Complete port from Java.
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* 01/13/2000 helena Added UErrorCode to ctors.
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**********************************************************************
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*/
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#ifndef DBBI_TBL_H
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#define DBBI_TBL_H
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#include "rbbi_tbl.h"
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#include "brkdict.h"
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#include "unicode/udata.h"
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U_NAMESPACE_BEGIN
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/* forward declaration */
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class DictionaryBasedBreakIterator;
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/**
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* This subclass of RuleBasedBreakIteratorTables contains the additional
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* static data that is used by DictionaryBasedBreakIterator. This comprises
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* the dictionary itself and an array of flags that indicate which characters
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* are in the dictionary.
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*
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* @author Richard Gillam
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*/
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class DictionaryBasedBreakIteratorTables : public RuleBasedBreakIteratorTables {
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private:
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/**
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* a list of known words that is used to divide up contiguous ranges of letters,
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* stored in a compressed, indexed, format that offers fast access
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*/
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BreakDictionary dictionary;
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/**
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* a list of flags indicating which character categories are contained in
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* the dictionary file (this is used to determine which ranges of characters
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* to apply the dictionary to)
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*/
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int8_t* categoryFlags;
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//=======================================================================
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// constructor
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//=======================================================================
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DictionaryBasedBreakIteratorTables(UDataMemory* tablesMemory,
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const char* dictionaryFilename,
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UErrorCode& status);
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/**
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* The copy constructor is declared private and not implemented.
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* THIS CLASS MAY NOT BE COPIED.
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*/
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DictionaryBasedBreakIteratorTables(const DictionaryBasedBreakIteratorTables& that);
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//=======================================================================
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// boilerplate
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//=======================================================================
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/**
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* Destructor
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*/
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virtual ~DictionaryBasedBreakIteratorTables();
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/**
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* The assignment operator is declared private and not implemented.
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* THIS CLASS MAY NOT BE COPIED.
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*/
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DictionaryBasedBreakIteratorTables& operator=(
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const DictionaryBasedBreakIteratorTables& that);
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protected:
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/**
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* Looks up a character's category (i.e., its category for breaking purposes,
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* not its Unicode category)
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*/
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virtual int32_t lookupCategory(UChar c, BreakIterator* bi) const;
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friend class DictionaryBasedBreakIterator;
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};
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U_NAMESPACE_END
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#endif
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