From: Mauricio Fernandez <mfp@...>
Date: 2006-08-08T17:40:00+09:00
Subject: Re: How to make objects that can set $1 when obj =~ /(.)/ is called ?

On Tue, Aug 08, 2006 at 02:51:37PM +0900, Tomasz Wegrzanowski wrote:
> class Foo
>  def initialize(t)
>    @text = t
>  end
>  def =~(x)
>    @text =~ x
>  end
> end
> 
> And it works for non-capturing regexps,
> but when we want to capture something
> $1 etc. are bound only within the =~ method,
> and when the method returns they are
> restored to their previous values.
> 
> Foo.new("Hello") =~ /(e)/ # => 1
> $1 # => nil
> 
> Is it possible to somehow get =~ like that work,
> even if it takes heavy metaprogramming hackery ?

[ruby-talk:202600]

-- 
Mauricio Fernandez  -   http://eigenclass.org   -  singular Ruby