101 lines
2.5 KiB
C++
101 lines
2.5 KiB
C++
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// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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**********************************************************************
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* Copyright (C) 1999-2011, International Business Machines
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* Corporation and others. All Rights Reserved.
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**********************************************************************
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*/
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#include "unicode/chariter.h"
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U_NAMESPACE_BEGIN
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ForwardCharacterIterator::~ForwardCharacterIterator() {}
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ForwardCharacterIterator::ForwardCharacterIterator()
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: UObject()
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{}
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ForwardCharacterIterator::ForwardCharacterIterator(const ForwardCharacterIterator &other)
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: UObject(other)
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{}
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CharacterIterator::CharacterIterator()
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: textLength(0), pos(0), begin(0), end(0) {
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}
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CharacterIterator::CharacterIterator(int32_t length)
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: textLength(length), pos(0), begin(0), end(length) {
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if(textLength < 0) {
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textLength = end = 0;
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}
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}
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CharacterIterator::CharacterIterator(int32_t length, int32_t position)
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: textLength(length), pos(position), begin(0), end(length) {
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if(textLength < 0) {
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textLength = end = 0;
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}
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if(pos < 0) {
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pos = 0;
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} else if(pos > end) {
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pos = end;
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}
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}
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CharacterIterator::CharacterIterator(int32_t length, int32_t textBegin, int32_t textEnd, int32_t position)
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: textLength(length), pos(position), begin(textBegin), end(textEnd) {
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if(textLength < 0) {
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textLength = 0;
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}
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if(begin < 0) {
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begin = 0;
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} else if(begin > textLength) {
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begin = textLength;
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}
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if(end < begin) {
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end = begin;
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} else if(end > textLength) {
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end = textLength;
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}
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if(pos < begin) {
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pos = begin;
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} else if(pos > end) {
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pos = end;
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}
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}
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CharacterIterator::~CharacterIterator() {}
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CharacterIterator::CharacterIterator(const CharacterIterator &that) :
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ForwardCharacterIterator(that),
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textLength(that.textLength), pos(that.pos), begin(that.begin), end(that.end)
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{
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}
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CharacterIterator &
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CharacterIterator::operator=(const CharacterIterator &that) {
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ForwardCharacterIterator::operator=(that);
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textLength = that.textLength;
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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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// implementing first[32]PostInc() directly in a subclass should be faster
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// but these implementations make subclassing a little easier
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UChar
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CharacterIterator::firstPostInc(void) {
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setToStart();
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return nextPostInc();
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}
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UChar32
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CharacterIterator::first32PostInc(void) {
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setToStart();
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return next32PostInc();
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}
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U_NAMESPACE_END
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