From: Charles Oliver Nutter <headius@...>
Date: 2009-06-17T08:31:44+09:00
Subject: Re: How to set $_ in a method?

On Fri, Jun 12, 2009 at 8:55 AM, Daniel Berger<djberg96@gmail.com> wrote:
> The rb_lastline_set() call sets $_. What's the equivalent in pure Ruby? If
> it's possible to do within a C extension, it ought to be possible to do in
> pure Ruby.

It is not possible, which is why backref and lastline should be
banned. $_ and $~ are treated specially and can only be set across
calls from C code (or Java code in JRuby).

- Charlie