From: nobu.nokada@...
Date: 2002-03-16T15:27:49+09:00
Subject: Re: Some potential RCRs

Hi,

At Sat, 16 Mar 2002 06:16:40 +0900,
<bbense+comp.lang.ruby.Mar.15.02@telemark.stanford.edu>; wrote:
> >
> >As Guy posted, Dir[dirname + '*'] will do the same, except it includes the
> >directory name in each entry.
> >
> >Maybe these sort of functions would be good additions to ftools.rb?
> >
> 
> - - I did some more thinking about this and it seems to me that a 
> good name would be Dir::slice. Somewhat similar in concept to 
> Array::slice. Or perhaps Dir::collect. Hmm, does Dir implement
> Emunerable? 

# Array doesn't have class method `slice'.

Dir includes Enumerable not but extend it.  So you can use
Dir#grep, Dir#collect and so on.

> Here's a simple minded implementation. 
> 
> # This implements the method 
> # Dir::slice(dirname,test, proc ) 
> # It returns an array of names that pass the test and 
> # if proc is available runs that on them and returns
> # that resulting array.  

It looks like Dir.entries except for the test, but the name
`slice' may cause confusion?  It's not close to Array#slice.

-- 
Nobu Nakada