From: "Iñaki Baz Castillo" <ibc@...>
Date: 2008-12-15T03:50:26+09:00
Subject: Re: Help with an "easy" regular expression substitution

El Domingo, 14 de Diciembre de 2008, David A. Black escribió:
> The first thing that comes to mind:
>
>    text.sub(/(X-Level: )(\*+)/) { $1 + 'X' * $2.size }
>
> or, in Oniguruma, using look-behind:
>
>   text.sub(/(?<=X-Level: )(\*+)/) { 'X' * $1.size }

Thanks, this is valid in Ruby, but I understand such a operation is not 
feasible with "sed" command, is it?
I'm not sure yet about if I'll need to do this script in Ruby or Shell.

Thanks a lot.

-- 
Iñaki Baz Castillo