From: Tim Hunter <TimHunter@...>
Date: 2007-12-16T08:59:49+09:00
Subject: Re: string to code?

Pavel Pvl wrote:
> is it possible to get user input, and put that in as a code. like lets
> say i ask for command and the user types types something like twice 3
> which would refer to to a method twice n??

Well, you can certainly use the eval method, which just executes a 
string as Ruby code, but there is some risk involved. You probably 
wouldn't want to allow somebody to type

system('del *.*')

for example.

Unless you're very smart and very careful (like _why: 
http://tryruby.hobix.com/) you shouldn't allow the user to type in real 
Ruby code.

-- 
RMagick: http://rmagick.rubyforge.org/