Re: GNUstep-corebase to be released next week

[Eric Wasylishen]

Hi Stef, Fred,

Here's a little test I did on Mac OS 10.7, after setting the number formatting 
locale to French in System Preferences:

#import <Foundation/Foundation.h>
#import <CoreFoundation/CoreFoundation.h>

int main (int argc, const char * argv[])
{
        @autoreleasepool {          
                NSLog(@"%@", CFStringCreateWithFormat(NULL, NULL, CFSTR("%f"), 
4.34f));
                NSLog(@"%@", [NSString stringWithFormat: @"%f", 4.34f]);
                NSLog(@"%@", [NSString localizedStringWithFormat: @"%f", 
4.34f]);               
        }
    return 0;
}

and the result:

2012-07-18 22:32:10.981 testtool[58336:707] 4.340000
2012-07-18 22:32:10.985 testtool[58336:707] 4.340000
2012-07-18 22:32:10.991 testtool[58336:707] 4,340000

So it seems CFStringCreateWithFormat behaves the same as -[NSString 
stringWithFormat:], which is never affected by the current locale.


I had a look at CFStringFormat.c. I think what you want to change is the locale 
param passed to unum_open; ICU interprets null as the "ICU default locale", 
which is a locale that depends on the user's setting in their operating system. 
I /think/ you want to use "en_US_POSIX" instead of null (see 
http://userguide.icu-project.org/locale , there are also various shortcuts like 
"" or "C" which map to "en_US_POSIX".) 

Cheers,
Eric

On 2012-07-18, at 20:56, Stefan Bidi wrote:

> On Wed, Jul 18, 2012 at 3:39 PM, Fred Kiefer <fredkiefer@gmx.de> wrote:
>> For me (OpenSuse 64bit AMD) the only failing test is this one:
>> 
>> Failed test:     format.m:28 ... Float/Doubles are formatted correctly
>> expected 5.500000 5.5   3.000000e-06, but got 5,500000 5,5   3,000000e-06
>> 
>> This definitely is a problem of the locale, you should have a look at the
>> base test in NSNumberFormatter/basic10_4.m on how to ensure a specific
>> locale for the test.
> 
> Would this be correct, though?  According to the Apple documentation
> the formatOptions parameter (which is an "unimplemented feature") is
> what specifies the decimal separator, etc.  I think the problem here
> is that I use unum_formatDouble() instead of something else.
> 
> I don't have a mac, so I can't test how floats/doubles are formatted
> when the locale specifies a ',' for decimal separator.
> 
>> 
>> Fred
>> 
> 
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