LocalizedNumberMac.mm   [plain text]

/*
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 *
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#include "config.h"
#include "LocalizedNumber.h"

#include <limits>
#import <Foundation/NSNumberFormatter.h>
#include <wtf/RetainPtr.h>
#include <wtf/text/CString.h>

using namespace std;

namespace WebCore {

static RetainPtr<NSNumberFormatter> createFormatterForCurrentLocale()
{
    RetainPtr<NSNumberFormatter> formatter(AdoptNS, [[NSNumberFormatter alloc] init]);
    [formatter.get() setLocalizesFormat:YES];
    [formatter.get() setNumberStyle:NSNumberFormatterDecimalStyle];
    return formatter;
}

static NSNumberFormatter *numberFormatter()
{
    ASSERT(isMainThread());
    static NSNumberFormatter *formatter = createFormatterForCurrentLocale().leakRef();
    return formatter;
}

double parseLocalizedNumber(const String& numberString)
{
    if (numberString.isEmpty())
        return numeric_limits<double>::quiet_NaN();
    NSNumber *number = [numberFormatter() numberFromString:numberString];
    if (!number)
        return numeric_limits<double>::quiet_NaN();
    return [number doubleValue];
}

String formatLocalizedNumber(double inputNumber, unsigned fractionDigits)
{
    RetainPtr<NSNumber> number(AdoptNS, [[NSNumber alloc] initWithDouble:inputNumber]);
    RetainPtr<NSNumberFormatter> formatter = numberFormatter();
    [formatter.get() setMaximumFractionDigits:fractionDigits];
    return String([formatter.get() stringFromNumber:number.get()]);
}

} // namespace WebCore