Hi Stef,
Sorry, my bad, I didn't think of checking corebase first; in any case we should be able to share code. I implemented anchored forward/backward search, and just added a simple test suite in base/Tests/base/NSString/locale.m.
Eric
On 2012-03-02, at 7:02 AM, Stefan Bidi wrote:
I just wanted to mention that this has been implemented in corebase for some time. Should be able to use the code there if needed. I still need to really clean it up as I was kind of in a rush at the time, but the concept is there. That should go for any of the localized/normalization/etc string stuff and anything else requiring ICU support.
On Fri, Mar 2, 2012 at 1:03 AM, Eric Wasylishen
<ewasylishen@gmail.com> wrote:
Hey, I just committed a first attempt at implementing this with ICU (compare:options:range:locale:, and I also did rangeOfString:options:range:locale: since it was similar.)
It needs more careful testing, but this little toy example works:
NSLocale *german = [[NSLocale alloc] initWithLocaleIdentifier: @"de_DE"];
int i = (int)[@"ß" compare: @"ss" options: NSCaseInsensitiveSearch range: NSMakeRange(0, 1) locale: german];
NSLog(@"s-set vs 'ss': %d", i); // returns 0 - the strings are equal
NSRange r = [@"ßab" rangeOfString: @"sS" options: NSCaseInsensitiveSearch range: NSMakeRange(0, 3)
locale: german];
NSLog(@"range: %@", NSStringFromRange(r)); // returns {0, 1}
-Eric
On 2012-03-01, at 2:50 PM, David Chisnall wrote:
> On OS X and FreeBSD trunk, we have strcoll_l which can do this. I think it's in POSIX2008, so it should appear elsewhere soon. Otherwise, yes, ICU is the way to go.
>
> David
>
> On 1 Mar 2012, at 21:47, Jens Alfke wrote:
>
>> Looks like localized string comparison (-[NSString localizedCompare:], et al) isn’t implemented — NSString.m has various reminder comments like “Should implement full POSIX.2 collate” and "FIXME: This does only a normal compare, ignoring locale”.
>>
>> Unfortunately Unicode collation is kind of important for my app, as its data interchange format relies on a single cross-platform sort order for strings.
>>
>> How hard would it be to implement this? Does it mean calling into the scary innards of ICU, or is there some higher level collation API available?
>>
>> —Jens_______________________________________________
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>
> -- Sent from my PDP-11
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