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// © 2018 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
// Allow implicit conversion from char16_t* to UnicodeString for this file:
// Helpful in toString methods and elsewhere.
#define UNISTR_FROM_STRING_EXPLICIT
#include "numparse_types.h"
#include "number_decimalquantity.h"
#include "string_segment.h"
#include "putilimp.h"
#include <cmath>
using namespace icu;
using namespace icu::number;
using namespace icu::number::impl;
using namespace icu::numparse;
using namespace icu::numparse::impl;
ParsedNumber::ParsedNumber() {
clear();
}
void ParsedNumber::clear() {
quantity.bogus = true;
charEnd = 0;
flags = 0;
prefix.setToBogus();
suffix.setToBogus();
currencyCode[0] = 0;
}
void ParsedNumber::setCharsConsumed(const StringSegment& segment) {
charEnd = segment.getOffset();
}
void ParsedNumber::postProcess() {
if (!quantity.bogus && 0 != (flags & FLAG_NEGATIVE)) {
quantity.negate();
}
}
bool ParsedNumber::success() const {
return charEnd > 0 && 0 == (flags & FLAG_FAIL);
}
bool ParsedNumber::seenNumber() const {
return !quantity.bogus || 0 != (flags & FLAG_NAN) || 0 != (flags & FLAG_INFINITY);
}
double ParsedNumber::getDouble(UErrorCode& status) const {
bool sawNaN = 0 != (flags & FLAG_NAN);
bool sawInfinity = 0 != (flags & FLAG_INFINITY);
// Check for NaN, infinity, and -0.0
if (sawNaN) {
// Can't use NAN or std::nan because the byte pattern is platform-dependent;
// MSVC sets the sign bit, but Clang and GCC do not
return uprv_getNaN();
}
if (sawInfinity) {
if (0 != (flags & FLAG_NEGATIVE)) {
return -INFINITY;
} else {
return INFINITY;
}
}
if (quantity.bogus) {
status = U_INVALID_STATE_ERROR;
return 0.0;
}
if (quantity.isZeroish() && quantity.isNegative()) {
return -0.0;
}
if (quantity.fitsInLong()) {
return static_cast<double>(quantity.toLong());
} else {
return quantity.toDouble();
}
}
void ParsedNumber::populateFormattable(Formattable& output, parse_flags_t parseFlags) const {
bool sawNaN = 0 != (flags & FLAG_NAN);
bool sawInfinity = 0 != (flags & FLAG_INFINITY);
bool integerOnly = 0 != (parseFlags & PARSE_FLAG_INTEGER_ONLY);
// Check for NaN, infinity, and -0.0
if (sawNaN) {
// Can't use NAN or std::nan because the byte pattern is platform-dependent;
// MSVC sets the sign bit, but Clang and GCC do not
output.setDouble(uprv_getNaN());
return;
}
if (sawInfinity) {
if (0 != (flags & FLAG_NEGATIVE)) {
output.setDouble(-INFINITY);
return;
} else {
output.setDouble(INFINITY);
return;
}
}
U_ASSERT(!quantity.bogus);
if (quantity.isZeroish() && quantity.isNegative() && !integerOnly) {
output.setDouble(-0.0);
return;
}
// All other numbers
output.adoptDecimalQuantity(new DecimalQuantity(quantity));
}
bool ParsedNumber::isBetterThan(const ParsedNumber& other) {
// Favor results with strictly more characters consumed.
return charEnd > other.charEnd;
}
#endif /* #if !UCONFIG_NO_FORMATTING */
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