From: "Peña, Botp" <botp@...>
Date: 2008-06-16T17:08:27+09:00
Subject: Re: how to stop gsub from returning nil

From: Tom Cloyd [mailto:tomcloyd@comcast.net] 
#     x.gsub!(y[0], y[1])

try,

    x=x.gsub(y[0], y[1])

kind regards -botp