Re: UTI in Lion
Re: UTI in Lion
- Subject: Re: UTI in Lion
- From: Sander Stoks <email@hidden>
- Date: Fri, 23 Sep 2011 17:44:33 +0200
On Sep 23, 2011, at 5:27 PM, Kyle Sluder wrote:
> On Fri, Sep 23, 2011 at 5:01 AM, Sander Stoks <email@hidden> wrote:
>> I think the way this was solved in BeOS was pretty nice. A file had a type/creator code there as a special attribute. A file "inherited" from a different platform would be sniffed by a low-priority background thread, which employed several heuristics to determine the file type - looking at magic bytes in the header, or looking at the file extension as a last resort. Files which already had the attributes were left alone.
>
> This is not all that different from how UTIs behave now. Launch
> Services employs a few extremely simple heuristics (file extension,
> creator code, MIME type) and assigns a UTI to the file.
>
> The big difference is that the detected UTI isn't recorded. If Launch
> Services recorded the last UTI it detected for the file in an xattr on
> that file, and if the user had the ability to change that recorded
> value, we'd have the system you're referring to, without losing ANY of
> the features of UTIs.
Exactly, that'd be cool. Actually, BeOS used MIME types too (couldn't think of the word so I called them type/creator codes). This addition (storing the UTI in an attribute of the file itself) could be added by Apple without breaking the current system, I think..._______________________________________________
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