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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
**********************************************************************
* Copyright (C) 1999-2011, International Business Machines
* Corporation and others. All Rights Reserved.
**********************************************************************
*/
#include "unicode/chariter.h"
U_NAMESPACE_BEGIN
ForwardCharacterIterator::~ForwardCharacterIterator() {}
ForwardCharacterIterator::ForwardCharacterIterator()
: UObject()
{}
ForwardCharacterIterator::ForwardCharacterIterator(const ForwardCharacterIterator &other)
: UObject(other)
{}
CharacterIterator::CharacterIterator()
: textLength(0), pos(0), begin(0), end(0) {
}
CharacterIterator::CharacterIterator(int32_t length)
: textLength(length), pos(0), begin(0), end(length) {
if(textLength < 0) {
textLength = end = 0;
}
}
CharacterIterator::CharacterIterator(int32_t length, int32_t position)
: textLength(length), pos(position), begin(0), end(length) {
if(textLength < 0) {
textLength = end = 0;
}
if(pos < 0) {
pos = 0;
} else if(pos > end) {
pos = end;
}
}
CharacterIterator::CharacterIterator(int32_t length, int32_t textBegin, int32_t textEnd, int32_t position)
: textLength(length), pos(position), begin(textBegin), end(textEnd) {
if(textLength < 0) {
textLength = 0;
}
if(begin < 0) {
begin = 0;
} else if(begin > textLength) {
begin = textLength;
}
if(end < begin) {
end = begin;
} else if(end > textLength) {
end = textLength;
}
if(pos < begin) {
pos = begin;
} else if(pos > end) {
pos = end;
}
}
CharacterIterator::~CharacterIterator() {}
CharacterIterator::CharacterIterator(const CharacterIterator &that) :
ForwardCharacterIterator(that),
textLength(that.textLength), pos(that.pos), begin(that.begin), end(that.end)
{
}
CharacterIterator &
CharacterIterator::operator=(const CharacterIterator &that) {
ForwardCharacterIterator::operator=(that);
textLength = that.textLength;
pos = that.pos;
begin = that.begin;
end = that.end;
return *this;
}
// implementing first[32]PostInc() directly in a subclass should be faster
// but these implementations make subclassing a little easier
char16_t
CharacterIterator::firstPostInc() {
setToStart();
return nextPostInc();
}
UChar32
CharacterIterator::first32PostInc() {
setToStart();
return next32PostInc();
}
U_NAMESPACE_END
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