98 lines
3.3 KiB
C++
98 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) 2004-2014, International Business Machines
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* Corporation and others. All Rights Reserved.
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**********************************************************************
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* Author: Alan Liu
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* Created: April 26, 2004
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* Since: ICU 3.0
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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 "unicode/currunit.h"
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#include "unicode/ustring.h"
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#include "cstring.h"
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#include "uinvchar.h"
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static constexpr char16_t kDefaultCurrency[] = u"XXX";
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U_NAMESPACE_BEGIN
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CurrencyUnit::CurrencyUnit(ConstChar16Ptr _isoCode, UErrorCode& ec) {
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// The constructor always leaves the CurrencyUnit in a valid state (with a 3-character currency code).
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// Note: in ICU4J Currency.getInstance(), we check string length for 3, but in ICU4C we allow a
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// non-NUL-terminated string to be passed as an argument, so it is not possible to check length.
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// However, we allow a NUL-terminated empty string, which should have the same behavior as nullptr.
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// Consider NUL-terminated strings of length 1 or 2 as invalid.
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const char16_t* isoCodeToUse;
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if (U_FAILURE(ec) || _isoCode == nullptr || _isoCode[0] == 0) {
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isoCodeToUse = kDefaultCurrency;
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} else if (_isoCode[1] == 0 || _isoCode[2] == 0) {
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isoCodeToUse = kDefaultCurrency;
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ec = U_ILLEGAL_ARGUMENT_ERROR;
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} else if (!uprv_isInvariantUString(_isoCode, 3)) {
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// TODO: Perform a more strict ASCII check like in ICU4J isAlpha3Code?
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isoCodeToUse = kDefaultCurrency;
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ec = U_INVARIANT_CONVERSION_ERROR;
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} else {
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isoCodeToUse = _isoCode;
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}
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// TODO: Perform uppercasing here like in ICU4J Currency.getInstance()?
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uprv_memcpy(isoCode, isoCodeToUse, sizeof(UChar) * 3);
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isoCode[3] = 0;
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char simpleIsoCode[4];
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u_UCharsToChars(isoCode, simpleIsoCode, 4);
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initCurrency(simpleIsoCode);
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}
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CurrencyUnit::CurrencyUnit(const CurrencyUnit& other) : MeasureUnit(other) {
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u_strcpy(isoCode, other.isoCode);
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}
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CurrencyUnit::CurrencyUnit(const MeasureUnit& other, UErrorCode& ec) : MeasureUnit(other) {
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// Make sure this is a currency.
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// OK to hard-code the string because we are comparing against another hard-coded string.
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if (uprv_strcmp("currency", getType()) != 0) {
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ec = U_ILLEGAL_ARGUMENT_ERROR;
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isoCode[0] = 0;
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} else {
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// Get the ISO Code from the subtype field.
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u_charsToUChars(getSubtype(), isoCode, 4);
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isoCode[3] = 0; // make 100% sure it is NUL-terminated
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}
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}
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CurrencyUnit::CurrencyUnit() : MeasureUnit() {
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u_strcpy(isoCode, kDefaultCurrency);
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char simpleIsoCode[4];
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u_UCharsToChars(isoCode, simpleIsoCode, 4);
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initCurrency(simpleIsoCode);
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}
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CurrencyUnit& CurrencyUnit::operator=(const CurrencyUnit& other) {
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if (this == &other) {
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return *this;
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}
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MeasureUnit::operator=(other);
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u_strcpy(isoCode, other.isoCode);
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return *this;
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}
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UObject* CurrencyUnit::clone() const {
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return new CurrencyUnit(*this);
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}
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CurrencyUnit::~CurrencyUnit() {
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}
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UOBJECT_DEFINE_RTTI_IMPLEMENTATION(CurrencyUnit)
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U_NAMESPACE_END
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#endif // !UCONFIG_NO_FORMATTING
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