From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2012-04-12T16:21:45+09:00
Subject: Re: Regular expression help

On Thu, Apr 12, 2012 at 4:21 AM, Alex Sweps <lists@ruby-forum.com> wrote:
> Hello all
>
> I have written a script to search the current directories and grab the
> file path for a set of filtered files. Example of what it returns:
> c:/Documents and Settings/Administrator/Desktop/version3/test_files/apserver1.int-APACHE.gz
> c:/Documents and
> Settings/Administrator/Desktop/version3/test_files/apserver2.int-APACHE.gz
> c:/Documents and
> Settings/Administrator/Desktop/version3/test_files/apserver3.int-APACHE.gz
>
> What I am trying to do is extract only the server names. So apserver1,
> apserver2 and apserver3. I need a regular expression that will grab
> everything after the last forward slash and then the text before the
> first "."

First, I'd use File#basename to get the filename. Then you can use the
String#[] method with a regex that gets everything up to the first
point, like this:

1.9.2p290 :009 > s = "c:/Documents and
Settings/Administrator/Desktop/version3/test_files/apserver1.int-APACHE.gz"
 => "c:/Documents and
Settings/Administrator/Desktop/version3/test_files/apserver1.int-APACHE.gz"
1.9.2p290 :010 > File.basename(s)[/[^.]*/]
=> "apserver1"

Jesus.