126 lines
3.3 KiB
C++
126 lines
3.3 KiB
C++
// © 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) 2009-2015, 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/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#include "fphdlimp.h"
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#include "uvectr32.h"
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U_NAMESPACE_BEGIN
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// utility FieldPositionHandler
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// base class, null implementation
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FieldPositionHandler::~FieldPositionHandler() {
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}
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void FieldPositionHandler::setShift(int32_t delta) {
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fShift = delta;
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}
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// utility subclass FieldPositionOnlyHandler
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FieldPositionOnlyHandler::FieldPositionOnlyHandler(FieldPosition& _pos)
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: pos(_pos) {
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}
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FieldPositionOnlyHandler::~FieldPositionOnlyHandler() {
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}
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void
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FieldPositionOnlyHandler::addAttribute(int32_t id, int32_t start, int32_t limit) {
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if (pos.getField() == id && (!acceptFirstOnly || !seenFirst)) {
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seenFirst = TRUE;
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pos.setBeginIndex(start + fShift);
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pos.setEndIndex(limit + fShift);
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}
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}
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void
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FieldPositionOnlyHandler::shiftLast(int32_t delta) {
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if (delta != 0 && pos.getField() != FieldPosition::DONT_CARE && pos.getBeginIndex() != -1) {
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pos.setBeginIndex(delta + pos.getBeginIndex());
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pos.setEndIndex(delta + pos.getEndIndex());
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}
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}
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UBool
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FieldPositionOnlyHandler::isRecording(void) const {
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return pos.getField() != FieldPosition::DONT_CARE;
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}
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void FieldPositionOnlyHandler::setAcceptFirstOnly(UBool acceptFirstOnly) {
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this->acceptFirstOnly = acceptFirstOnly;
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}
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// utility subclass FieldPositionIteratorHandler
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FieldPositionIteratorHandler::FieldPositionIteratorHandler(FieldPositionIterator* posIter,
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UErrorCode& _status)
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: iter(posIter), vec(NULL), status(_status), fCategory(UFIELD_CATEGORY_UNDEFINED) {
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if (iter && U_SUCCESS(status)) {
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vec = new UVector32(status);
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}
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}
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FieldPositionIteratorHandler::FieldPositionIteratorHandler(
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UVector32* vec,
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UErrorCode& status)
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: iter(nullptr), vec(vec), status(status), fCategory(UFIELD_CATEGORY_UNDEFINED) {
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}
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FieldPositionIteratorHandler::~FieldPositionIteratorHandler() {
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// setData adopts the vec regardless of status, so it's safe to null it
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if (iter) {
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iter->setData(vec, status);
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}
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// if iter is null, we never allocated vec, so no need to free it
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vec = NULL;
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}
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void
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FieldPositionIteratorHandler::addAttribute(int32_t id, int32_t start, int32_t limit) {
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if (vec && U_SUCCESS(status) && start < limit) {
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int32_t size = vec->size();
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vec->addElement(fCategory, status);
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vec->addElement(id, status);
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vec->addElement(start + fShift, status);
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vec->addElement(limit + fShift, status);
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if (!U_SUCCESS(status)) {
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vec->setSize(size);
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}
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}
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}
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void
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FieldPositionIteratorHandler::shiftLast(int32_t delta) {
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if (U_SUCCESS(status) && delta != 0) {
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int32_t i = vec->size();
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if (i > 0) {
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--i;
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vec->setElementAt(delta + vec->elementAti(i), i);
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--i;
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vec->setElementAt(delta + vec->elementAti(i), i);
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}
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}
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}
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UBool
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FieldPositionIteratorHandler::isRecording(void) const {
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return U_SUCCESS(status);
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}
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U_NAMESPACE_END
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#endif /* !UCONFIG_NO_FORMATTING */
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