Re: Overlapping Extensions and UTIs in NSDocument
Re: Overlapping Extensions and UTIs in NSDocument
- Subject: Re: Overlapping Extensions and UTIs in NSDocument
- From: "Markus Müller" <email@hidden>
- Date: Thu, 29 May 2008 19:57:21 +0200
Thank you for your answer. I filled a radar describing this issue.
Best regards,
Markus Müller
On Thu, May 29, 2008 at 4:55 PM, Sean McBride <email@hidden>
wrote:
> On 5/29/08 3:20 PM, Markus Müller said:
>
> >Could it be that it's not allowed to have UTIs with overlapping
> extensions?
>
> Bingo. LaunchServices does a 1-to-1 mapping between a file and a UTI.
> That is, a file can have only 1 UTI. So if two UTI declarations claim
> the same extension you are screwed. See the quicklook-dev archives for
> more info. A workaround I tried was to use an HFS file type, but alas
> the system gives priority to extensions even in the case of conflict.
> So if you have 2 UTIs:
>
> 1) UTI: com.UTI1
> type: 'TEXT'
> ext: .mm
>
> 2) UTI: com.UTI2
> type: 'FOO '
> ext: .mm
>
> and ask LS for the UTI of a file that has extension .mm and type 'FOO '
> LS might return 'com.UTI1'.
>
> And please file a bug. Mine come back 'behaves as expected' so I think
> Apple needs convincing.
>
> --
> ____________________________________________________________
> Sean McBride, B. Eng email@hidden
> Rogue Research www.rogue-research.com
> Mac Software Developer Montréal, Québec, Canada
>
>
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