michael@0: /*
michael@0: ******************************************************************************
michael@0: * Copyright (C) 2009-2012, International Business Machines Corporation and
michael@0: * others. All Rights Reserved.
michael@0: ******************************************************************************
michael@0: *   Date        Name        Description
michael@0: *   12/14/09    doug        Creation.
michael@0: ******************************************************************************
michael@0: */
michael@0: 
michael@0: #include "unicode/utypes.h"
michael@0: 
michael@0: #if !UCONFIG_NO_FORMATTING
michael@0: 
michael@0: #include "unicode/fpositer.h"
michael@0: #include "cmemory.h"
michael@0: #include "uvectr32.h"
michael@0: 
michael@0: U_NAMESPACE_BEGIN
michael@0: 
michael@0: FieldPositionIterator::~FieldPositionIterator() {
michael@0:   delete data;
michael@0:   data = NULL;
michael@0:   pos = -1;
michael@0: }
michael@0: 
michael@0: FieldPositionIterator::FieldPositionIterator()
michael@0:     : data(NULL), pos(-1) {
michael@0: }
michael@0: 
michael@0: FieldPositionIterator::FieldPositionIterator(const FieldPositionIterator &rhs)
michael@0:   : UObject(rhs), data(NULL), pos(rhs.pos) {
michael@0: 
michael@0:   if (rhs.data) {
michael@0:     UErrorCode status = U_ZERO_ERROR;
michael@0:     data = new UVector32(status);
michael@0:     data->assign(*rhs.data, status);
michael@0:     if (status != U_ZERO_ERROR) {
michael@0:       delete data;
michael@0:       data = NULL;
michael@0:       pos = -1;
michael@0:     }
michael@0:   }
michael@0: }
michael@0: 
michael@0: UBool FieldPositionIterator::operator==(const FieldPositionIterator &rhs) const {
michael@0:   if (&rhs == this) {
michael@0:     return TRUE;
michael@0:   }
michael@0:   if (pos != rhs.pos) {
michael@0:     return FALSE;
michael@0:   }
michael@0:   if (!data) {
michael@0:     return rhs.data == NULL;
michael@0:   }
michael@0:   return rhs.data ? data->operator==(*rhs.data) : FALSE;
michael@0: }
michael@0: 
michael@0: void FieldPositionIterator::setData(UVector32 *adopt, UErrorCode& status) {
michael@0:   // Verify that adopt has valid data, and update status if it doesn't.
michael@0:   if (U_SUCCESS(status)) {
michael@0:     if (adopt) {
michael@0:       if ((adopt->size() % 3) != 0) {
michael@0:         status = U_ILLEGAL_ARGUMENT_ERROR;
michael@0:       } else {
michael@0:         for (int i = 1; i < adopt->size(); i += 3) {
michael@0:           if (adopt->elementAti(i) >= adopt->elementAti(i+1)) {
michael@0:             status = U_ILLEGAL_ARGUMENT_ERROR;
michael@0:             break;
michael@0:           }
michael@0:         }
michael@0:       }
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   // We own the data, even if status is in error, so we need to delete it now
michael@0:   // if we're not keeping track of it.
michael@0:   if (!U_SUCCESS(status)) {
michael@0:     delete adopt;
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   delete data;
michael@0:   data = adopt;
michael@0:   pos = adopt == NULL ? -1 : 0;
michael@0: }
michael@0: 
michael@0: UBool FieldPositionIterator::next(FieldPosition& fp) {
michael@0:   if (pos == -1) {
michael@0:     return FALSE;
michael@0:   }
michael@0: 
michael@0:   fp.setField(data->elementAti(pos++));
michael@0:   fp.setBeginIndex(data->elementAti(pos++));
michael@0:   fp.setEndIndex(data->elementAti(pos++));
michael@0: 
michael@0:   if (pos == data->size()) {
michael@0:     pos = -1;
michael@0:   }
michael@0: 
michael@0:   return TRUE;
michael@0: }
michael@0: 
michael@0: U_NAMESPACE_END
michael@0: 
michael@0: #endif /* #if !UCONFIG_NO_FORMATTING */
michael@0: