From: Eric Hodel <drbrain@...7.net>
Date: 2012-06-13T05:39:37+09:00
Subject: Re: Need simple Reg exp

On Jun 12, 2012, at 13:24, cyber c. wrote:
> i have a string,
> 
> str = "afp://XYZ/a/b/c/d"
> 
> i need to extract "afp://XYZ" . Can anyone suggest a simple reg
> expression?


URI can do this.

$ ruby -ruri -e 'u = URI("afp://XYZ/a/b/c/d"); p u.scheme, u.host'
"afp"
"XYZ"

and:

$ ruby -ruri -e 'u = URI("afp://XYZ/a/b/c/d"); puts u + "/"'
afp://XYZ/