From: "Peña, Botp" <botp@...>
Date: 2008-12-08T18:21:50+09:00
Subject: Re: A quetion about ruby string

From: Zhao Yi [mailto:youhaodeyi@gmail.com] 
# How can I change a string to regular expression? Take this 
# method for an
# example:

>qri Regexp#new
-----------
 Regexp.new(string [, options [, lang]])       => regexp
     Regexp.new(regexp)                            => regexp
     Regexp.compile(string [, options [, lang]])   => regexp
     Regexp.compile(regexp)                        => regexp
-----------
Constructs a new regular expression from pattern, which can be
either a String or a Regexp (in which case that regexp's options
are propagated, and new options may not be specified (a change as
of Ruby 1.8). If options is a Fixnum, it should be one or more of
the constants Regexp::EXTENDED, Regexp::IGNORECASE, and Regexp::MULTILINE, or-ed together....