[TxMt] Re: Tree structure bundle?

[Michael Gregoire]

Thanks for this. Unfortunately, it won't always be mp3s.

Peace
Mike



On Feb 11, 2007, at 11:08 PM, Rob Shearer wrote:

>> Michael Gregoire <mgee at ...> writes:
>>> Hi everyone... I catalog my external media using the 'tree' command
>>> and this generates a file such as the one attached.
>>> Does anyone know of a bundle developed to allow folding for this?
>>>
>>> .
>>> |-- a
>>> |   |-- AC_DC
>>> |   |   |-- AC_DC - Highway to Hell.mp3
>>> |   |   `-- AC_DC - You Shook Me All Night Long.mp3
>>> |   |-- Alan Parsons Project - Games People Play.mp3
>>> |   |-- Alt & The Lost Civilisation - Tequila.mp3
>>> |   `-- Archies - Sugar Sugar.mp3
>>
>> Hmm, I don't think this is possible given the current folding  
>> architecture.
>> Hopefully it will be possible with the new parser features being  
>> added for 2.0.
>
> To figure out whether a line should actually start a folding you  
> really need to be able to look ahead to the next line, and I think  
> you can't do that in TM. (yet?)
>
> But if your actual data is a bunch of directories of MP3 files, a  
> simple little language which sets
>
> 	foldingStartMarker = '^(\|   )*\|-- .*(?<!.mp3)$';
> 	foldingStopMarker = '^(\|   )*`--';
>
> does more or less the right thing. The "negative lookbehind" is the  
> hacky heuristic to decide whether a line starts a folding or not:  
> it will break if there are empty directories, if any file name  
> doesn't end with .mp3, or if any directory name does. Giving the -F  
> flag to `tree` will disambiguate the naming things (use "/$"  
> instead of "(?<!.mp3)$", but won't fix the problem with empty  
> directories.
>
> One of the things I really like about TextMate is that such  
> customizations are quick enough to be economic even for grotty  
> single-use "languages" like this one.
>
> -rob
>
>
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