From: dblack@...
Date: 2002-09-21T00:55:28+09:00
Subject: Re: Regexp question (newbie)

Hello --

On Sat, 21 Sep 2002, Johann Spies wrote:

> After playing a little bit with Ruby 3 years ago, I am trying to learn
> it now.
> Problem:
>
> a = ["aaa","abb","bbb","acc","bcc","ccc"]
>
> I want a regular expression which would extract something like ["acc",
> "ccc"] from a
>
> I want something like
>
> irb(main):023:0> for b in a
> irb(main):024:1> b.scan("#{(a||c)}cc") && print b
> irb(main):025:1> end
>
> but I am not sure how to approach it.

I would use #select, which filters based on a condition contained
in a code block:

  a = ["aaa","abb","bbb","acc","bcc","ccc"]
  puts a.select {|e| /(a|c)cc/.match(e)}

  =>
    acc
    ccc


David

-- 
David Alan Black                      | Register for RubyConf 2002!
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