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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
**********************************************************************
* Copyright (c) 2004-2014, International Business Machines
* Corporation and others. All Rights Reserved.
**********************************************************************
* Author: Alan Liu
* Created: April 26, 2004
* Since: ICU 3.0
**********************************************************************
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "unicode/currunit.h"
#include "unicode/ustring.h"
#include "unicode/uchar.h"
#include "cstring.h"
#include "uinvchar.h"
#include "charstr.h"
#include "ustr_imp.h"
#include "measunit_impl.h"
U_NAMESPACE_BEGIN
CurrencyUnit::CurrencyUnit(ConstChar16Ptr _isoCode, UErrorCode& ec) {
// The constructor always leaves the CurrencyUnit in a valid state (with a 3-character currency code).
// Note: in ICU4J Currency.getInstance(), we check string length for 3, but in ICU4C we allow a
// non-NUL-terminated string to be passed as an argument, so it is not possible to check length.
// However, we allow a NUL-terminated empty string, which should have the same behavior as nullptr.
// Consider NUL-terminated strings of length 1 or 2 as invalid.
bool useDefault = false;
if (U_FAILURE(ec) || _isoCode == nullptr || _isoCode[0] == 0) {
useDefault = true;
} else if (_isoCode[1] == 0 || _isoCode[2] == 0) {
useDefault = true;
ec = U_ILLEGAL_ARGUMENT_ERROR;
} else if (!uprv_isInvariantUString(_isoCode, 3)) {
// TODO: Perform a more strict ASCII check like in ICU4J isAlpha3Code?
useDefault = true;
ec = U_INVARIANT_CONVERSION_ERROR;
} else {
for (int32_t i=0; i<3; i++) {
isoCode[i] = u_asciiToUpper(_isoCode[i]);
}
isoCode[3] = 0;
}
if (useDefault) {
uprv_memcpy(isoCode, kDefaultCurrency, sizeof(char16_t) * 4);
}
char simpleIsoCode[4];
u_UCharsToChars(isoCode, simpleIsoCode, 4);
initCurrency(simpleIsoCode);
}
CurrencyUnit::CurrencyUnit(StringPiece _isoCode, UErrorCode& ec) {
// Note: unlike the old constructor, reject empty arguments with an error.
char isoCodeBuffer[4];
const char* isoCodeToUse;
// uprv_memchr checks that the string contains no internal NULs
if (_isoCode.length() != 3 || uprv_memchr(_isoCode.data(), 0, 3) != nullptr) {
isoCodeToUse = kDefaultCurrency8;
ec = U_ILLEGAL_ARGUMENT_ERROR;
} else if (!uprv_isInvariantString(_isoCode.data(), 3)) {
// TODO: Perform a more strict ASCII check like in ICU4J isAlpha3Code?
isoCodeToUse = kDefaultCurrency8;
ec = U_INVARIANT_CONVERSION_ERROR;
} else {
// Have to use isoCodeBuffer to ensure the string is NUL-terminated
for (int32_t i=0; i<3; i++) {
isoCodeBuffer[i] = uprv_toupper(_isoCode.data()[i]);
}
isoCodeBuffer[3] = 0;
isoCodeToUse = isoCodeBuffer;
}
u_charsToUChars(isoCodeToUse, isoCode, 4);
initCurrency(isoCodeToUse);
}
CurrencyUnit::CurrencyUnit(const CurrencyUnit& other) : MeasureUnit(other) {
u_strcpy(isoCode, other.isoCode);
}
CurrencyUnit::CurrencyUnit(const MeasureUnit& other, UErrorCode& ec) : MeasureUnit(other) {
// Make sure this is a currency.
// OK to hard-code the string because we are comparing against another hard-coded string.
if (uprv_strcmp("currency", getType()) != 0) {
ec = U_ILLEGAL_ARGUMENT_ERROR;
isoCode[0] = 0;
} else {
// Get the ISO Code from the subtype field.
u_charsToUChars(getSubtype(), isoCode, 4);
isoCode[3] = 0; // make 100% sure it is NUL-terminated
}
}
CurrencyUnit::CurrencyUnit() : MeasureUnit() {
u_strcpy(isoCode, kDefaultCurrency);
char simpleIsoCode[4];
u_UCharsToChars(isoCode, simpleIsoCode, 4);
initCurrency(simpleIsoCode);
}
CurrencyUnit& CurrencyUnit::operator=(const CurrencyUnit& other) {
if (this == &other) {
return *this;
}
MeasureUnit::operator=(other);
u_strcpy(isoCode, other.isoCode);
return *this;
}
CurrencyUnit* CurrencyUnit::clone() const {
return new CurrencyUnit(*this);
}
CurrencyUnit::~CurrencyUnit() {
}
UOBJECT_DEFINE_RTTI_IMPLEMENTATION(CurrencyUnit)
U_NAMESPACE_END
#endif // !UCONFIG_NO_FORMATTING
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