From: Nobuyoshi Nakada <nobu@...>
Date: 2007-09-20T03:43:00+09:00
Subject: Re: special Array method about Unix pathes

Hi,

At Thu, 20 Sep 2007 03:24:58 +0900,
Stefano Crocco wrote in [ruby-talk:269890]:
> def select_toplevel_paths arg
>   a = arg.dup.sort_by{|i| i.size}                     
>   a.inject([]) do |res, i|                            
>     res.any?{|j| i.index(j) == 0 } ? res : (res << i) 

i.rindex(j, 0) is faster than i.index(j) == 0 when j matches in
the middle.

> * use start_with? instead of starts_with?. In the ruby standard library, there 
> are several cases in which both methods exist, with the ones ending in s being 
> obsolete (for example, File.exists? and File.exist?) For consistency, I think 
> it's better to follow the same convention.

And ruby 1.9 has String#start_with? already in fact.

-- 
Nobu Nakada