From: Robert Klemme <shortcutter@...>
Date: 2012-08-16T04:40:56+09:00
Subject: Re: string processing

On Wed, Aug 15, 2012 at 9:30 PM, Peter Hickman
<peterhickman386@googlemail.com> wrote:
> You need to also make sure that you get the right line, not just pick
> out the any digits
>
> DATA.each do |line|
>   if line =~ /^Success - new device-id: \((\d+)\)/
>     puts $1
>   end

Alternatively

num = line[/^Success - new device-id: \((\d+)\)/, 1] and puts num

I find the solution with String#[] very elegant. :-)

Btw, if there is always just one number this shorter solution will
work as well - but is not so robust against other inputs:

num = line[/\d+/]

Kind regards

robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/