From: Dave Thomas <Dave@...>
Date: 2002-02-07T05:55:29+09:00
Subject: Re: Regexp::Parser ported to Ruby...?

Tobias Reif <tobiasreif@pinkjuice.com> writes:

> > In Perl, you can execute arbitrary code in a regex.
> > 
> >   "japhy" =~ /((.)(?{ print "<$2>" }))+/;
> >   # <j><a><p><h><y>
> > 
> > I guess that's not possible in Ruby?
> 
> 
> One way:
> 
> irb(main):003:0> "japhy".gsub(/./)do print "<#{$&}>" end
> <j><a><p><h><y>""

Or

   "japhy".scan(/./) { |ch| print "<#{ch}>" }