Re: NSScanner troubles
Re: NSScanner troubles
- Subject: Re: NSScanner troubles
- From: Ron Fleckner <email@hidden>
- Date: Sat, 11 Dec 2010 19:03:23 +1100
On 11/12/2010, at 3:54 PM, Ken Thomases wrote:
> On Dec 10, 2010, at 9:38 PM, WT wrote:
>
>> thank you both for the very fast response.
>
> You're welcome.
>
>> Is that behavior of NSScanner documented anywhere? I read the docs but don't remember coming across it. I'm a bit stunned. What's the point of having a scanner if it ignores certain key aspects of the locale?
>
> It's not ignoring the locale. There are just different ways of formatting numbers, and NSScanner just wasn't designed to understand some of them. Group separators are more relevant to human-readable numbers than computer-readable ones.
>
> I would venture to say that NSScanner is an object-oriented analog to the scanf family of functions from the standard C library. Those do not understand group separators, either. It's pretty much the norm for number-scanning library routines. It's also the norm for library routines to not include group separators when formatting numbers for output. (e.g. -[NSNumber stringValue])
>
> Regards,
> Ken
Hi,
sorry if I'm way off the mark here, but wouldn't the best thing to use be NSScanner *scanner = [NSScanner localizedScannerWithString:[sender stringValue]];? Then you don't have to worry about the specifics of number formatting in various locales. Please let me know if I've missed the point.
Ron
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden