82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/********************************************************************
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* COPYRIGHT:
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* Copyright (c) 1997-2001, International Business Machines Corporation and
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* others. All Rights Reserved.
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********************************************************************/
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#ifndef SFDWCHIT_H
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#define SFDWCHIT_H
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#include "unicode/chariter.h"
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class SimpleFwdCharIterator : public ForwardCharacterIterator {
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public:
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SimpleFwdCharIterator(const UnicodeString& s);
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SimpleFwdCharIterator(UChar *s, int32_t len, UBool adopt = FALSE);
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virtual ~SimpleFwdCharIterator();
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/**
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* Returns true when both iterators refer to the same
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* character in the same character-storage object.
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* @stable
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*/
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virtual UBool operator==(const ForwardCharacterIterator& that) const;
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/**
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* Generates a hash code for this iterator.
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* @stable
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*/
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virtual int32_t hashCode(void) const;
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/**
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* Returns a UClassID for this ForwardCharacterIterator ("poor man's
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* RTTI").<P> Despite the fact that this function is public,
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* DO NOT CONSIDER IT PART OF CHARACTERITERATOR'S API!
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* @stable
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*/
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virtual UClassID getDynamicClassID(void) const;
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/**
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* Gets the current code unit for returning and advances to the next code unit
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* in the iteration range
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* (toward endIndex()). If there are
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* no more code units to return, returns DONE.
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* @draft
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*/
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virtual UChar nextPostInc(void);
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/**
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* Gets the current code point for returning and advances to the next code point
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* in the iteration range
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* (toward endIndex()). If there are
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* no more code points to return, returns DONE.
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* @draft
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*/
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virtual UChar32 next32PostInc(void);
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/**
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* Returns FALSE if there are no more code units or code points
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* at or after the current position in the iteration range.
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* This is used with nextPostInc() or next32PostInc() in forward
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* iteration.
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*/
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virtual UBool hasNext();
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protected:
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SimpleFwdCharIterator() {}
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SimpleFwdCharIterator(const SimpleFwdCharIterator &other)
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: ForwardCharacterIterator(other) {}
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SimpleFwdCharIterator &operator=(const SimpleFwdCharIterator&) { return *this; }
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private:
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static const int32_t kInvalidHashCode;
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static const int32_t kEmptyHashCode;
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UChar *fStart, *fEnd, *fCurrent;
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int32_t fLen;
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UBool fBogus;
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int32_t fHashCode;
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};
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#endif
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