From: Dave Bass <davebass@...>
Date: 2008-06-11T03:58:14+09:00
Subject: Re: replacing a character in a string

James Gray wrote:
>    cal_name.tr("_", " ")

Coming recently from Perl, this looks very familiar to me. In Perl 
syntax:

  $cal_name =~ tr/_/ /;

In Ruby you'll need cal_name.tr!("_", " ") if you want to make the 
substitution permanent. (I keep getting caught by this!) Or 
cal_name.tr_s!("_", " ") if you want to squeeze multiple space 
characters down to a single space too.

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