From: Arlen Cuss <celtic@...>
Date: 2008-04-25T10:48:02+09:00
Subject: Re: pretty folder tree script

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Hi,

On Fri, Apr 25, 2008 at 11:35 AM, John <john.d.perkins@gmail.com> wrote:

> I think you killed a fly with a shotgun this time. I mean it's really
> appriciated, but I can't ride this horse.


Understood, but I think this is probably the simplest data structure you can
get for what you want.


> I was looking for more of a [migratus[app[views, models,
> controllers]]... etc] than a hash with empty symbols.
>

You can't use anything less than arrays *and* something else to do this,
unfortunately - since arrays can only contain other objects [and have no
`name' of their own], we need some other type of object used in conjunction
to actually be the `nodes' of this tree structure. You could do it entirely
with hashes, however, which renders what I think what you want:

result[:migratus][:app][:views], for example. Is this more what you'd be
looking for? My last question, though, is - what do you want at the `leaves'
of this tree? [i.e. what do you get at the very end? - the items under
`views', for example?] Something that produces such nested hashes would just
leave empty hashes (i.e. result[...][:views][:abc] == {}), but that wouldn't
impede your work.

The only thing with using hashes is that you lose any order you might've
had. But perhaps it's not a problem?

http://pastie.caboo.se/186549

The result is like this:

{"controllers"=>{},
 "views"=>{"projects"=>{}, "tasks"=>{}, "layouts"=>{}},
 "helpers"=>{},
 "models"=>{}}

Note that we're already "using" the data in some manipulated sense in that
pastie bit by asking for `result["."]["Migratus"]["app"]' specifically.

Hope this helps a bit. If I miss the point still, please let us know!

Arlen

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