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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 2009-2015, International Business Machines Corporation and
* others. All Rights Reserved.
*******************************************************************************
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "fphdlimp.h"
#include "uvectr32.h"
U_NAMESPACE_BEGIN
// utility FieldPositionHandler
// base class, null implementation
FieldPositionHandler::~FieldPositionHandler() {
}
void FieldPositionHandler::setShift(int32_t delta) {
fShift = delta;
}
// utility subclass FieldPositionOnlyHandler
FieldPositionOnlyHandler::FieldPositionOnlyHandler(FieldPosition& _pos)
: pos(_pos) {
}
FieldPositionOnlyHandler::~FieldPositionOnlyHandler() {
}
void
FieldPositionOnlyHandler::addAttribute(int32_t id, int32_t start, int32_t limit) {
if (pos.getField() == id && (!acceptFirstOnly || !seenFirst)) {
seenFirst = true;
pos.setBeginIndex(start + fShift);
pos.setEndIndex(limit + fShift);
}
}
void
FieldPositionOnlyHandler::shiftLast(int32_t delta) {
if (delta != 0 && pos.getField() != FieldPosition::DONT_CARE && pos.getBeginIndex() != -1) {
pos.setBeginIndex(delta + pos.getBeginIndex());
pos.setEndIndex(delta + pos.getEndIndex());
}
}
UBool
FieldPositionOnlyHandler::isRecording() const {
return pos.getField() != FieldPosition::DONT_CARE;
}
void FieldPositionOnlyHandler::setAcceptFirstOnly(UBool acceptFirstOnly) {
this->acceptFirstOnly = acceptFirstOnly;
}
// utility subclass FieldPositionIteratorHandler
FieldPositionIteratorHandler::FieldPositionIteratorHandler(FieldPositionIterator* posIter,
UErrorCode& _status)
: iter(posIter), vec(nullptr), status(_status), fCategory(UFIELD_CATEGORY_UNDEFINED) {
if (iter && U_SUCCESS(status)) {
vec = new UVector32(status);
}
}
FieldPositionIteratorHandler::FieldPositionIteratorHandler(
UVector32* vec,
UErrorCode& status)
: iter(nullptr), vec(vec), status(status), fCategory(UFIELD_CATEGORY_UNDEFINED) {
}
FieldPositionIteratorHandler::~FieldPositionIteratorHandler() {
// setData adopts the vec regardless of status, so it's safe to null it
if (iter) {
iter->setData(vec, status);
}
// if iter is null, we never allocated vec, so no need to free it
vec = nullptr;
}
void
FieldPositionIteratorHandler::addAttribute(int32_t id, int32_t start, int32_t limit) {
if (vec && U_SUCCESS(status) && start < limit) {
int32_t size = vec->size();
vec->addElement(fCategory, status);
vec->addElement(id, status);
vec->addElement(start + fShift, status);
vec->addElement(limit + fShift, status);
if (!U_SUCCESS(status)) {
vec->setSize(size);
}
}
}
void
FieldPositionIteratorHandler::shiftLast(int32_t delta) {
if (U_SUCCESS(status) && delta != 0) {
int32_t i = vec->size();
if (i > 0) {
--i;
vec->setElementAt(delta + vec->elementAti(i), i);
--i;
vec->setElementAt(delta + vec->elementAti(i), i);
}
}
}
UBool
FieldPositionIteratorHandler::isRecording() const {
return U_SUCCESS(status);
}
U_NAMESPACE_END
#endif /* !UCONFIG_NO_FORMATTING */
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