161 lines
3.0 KiB
C++
161 lines
3.0 KiB
C++
/*
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*******************************************************************************
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* Copyright (C) 1998-1999, International Business Machines Corporation and *
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* others. All Rights Reserved. *
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*******************************************************************************
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*/
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#include "unicode/uchriter.h"
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UCharCharacterIterator::UCharCharacterIterator(const UChar* text,
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int32_t textLength)
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: CharacterIterator(),
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text(text),
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pos(0),
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begin(0),
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end(textLength)
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{
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}
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UCharCharacterIterator::UCharCharacterIterator(const UCharCharacterIterator& that)
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: CharacterIterator(that),
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text(that.text),
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pos(that.pos),
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begin(that.begin),
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end(that.end)
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{
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}
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UCharCharacterIterator&
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UCharCharacterIterator::operator=(const UCharCharacterIterator& that)
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{
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text = that.text;
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pos = that.pos;
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begin = that.begin;
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end = that.end;
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return *this;
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}
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UCharCharacterIterator::~UCharCharacterIterator()
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{}
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bool_t
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UCharCharacterIterator::operator==(const CharacterIterator& that) const
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{
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if (this == &that)
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return TRUE;
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if (getDynamicClassID() != that.getDynamicClassID())
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return FALSE;
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UCharCharacterIterator& realThat = (UCharCharacterIterator&)that;
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return text == realThat.text
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&& pos == realThat.pos
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&& begin == realThat.begin
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&& end == realThat.end;
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}
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int32_t
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UCharCharacterIterator::hashCode() const
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{
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return pos ^ begin ^ end;
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}
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CharacterIterator*
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UCharCharacterIterator::clone() const
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{
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return new UCharCharacterIterator(*this);
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}
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UChar
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UCharCharacterIterator::first()
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{
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pos = begin;
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return text[pos];
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}
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UChar
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UCharCharacterIterator::last()
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{
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pos = end - 1;
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return text[pos];
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}
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UChar
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UCharCharacterIterator::setIndex(UTextOffset pos)
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{
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// should check "pos" here and return an error code, but changing this
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// function would have significant impact across TIFC, so we decided to hold off
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this->pos = pos;
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return text[pos];
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}
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UChar
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UCharCharacterIterator::current() const
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{
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if (pos >= begin && pos < end)
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return text[pos];
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else
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return CharacterIterator::DONE;
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}
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UChar
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UCharCharacterIterator::next()
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{
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if (pos < end - 1)
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{
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pos += 1;
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return text[pos];
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}
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else
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{
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pos = end;
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return CharacterIterator::DONE;
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}
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}
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UChar
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UCharCharacterIterator::previous()
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{
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if (pos > begin)
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return text[--pos];
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else
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return DONE;
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}
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UTextOffset
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UCharCharacterIterator::startIndex() const
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{
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return begin;
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}
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UTextOffset
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UCharCharacterIterator::endIndex() const
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{
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return end;
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}
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UTextOffset
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UCharCharacterIterator::getIndex() const
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{
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return pos;
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}
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void UCharCharacterIterator::setText(const UChar* newText,
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int32_t newTextLength)
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{
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text = newText;
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begin = 0;
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end = newTextLength;
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pos = begin;
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}
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void
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UCharCharacterIterator::getText(UnicodeString& result)
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{
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result = UnicodeString(text, end);
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}
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char UCharCharacterIterator::fgClassID = 0;
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