From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2012-06-27T16:35:59+09:00
Subject: Re: help for a little regexp

On Wed, Jun 27, 2012 at 9:24 AM, Quentin R-G <lists@ruby-forum.com> wrote:
> Hi everyone,
>
> So I am new to ruby, and I need help for a regexp.
> I want to stock the letter and the number in this sting "e = 11.1607"
>
> I tried with this regexp:
>
> /(?<letter>^\w+)\/(?<frequency>\d{1,2}.\d+)/
>
> But it does not match anything... But I tried separatly and it returns
> me the good things. I do not understand what's the problem ^^'
>
> Thank you to everyone who gonna help me ! :)

This works for me. Note that the start anchor "^" is outside of the
group, and that between both groups you need to match spaces and "=".
Also the "." has to be escaped to be matched exactly, otherwise it's
any character:

1.9.2p290 :026 > m = string.match
/^(?<letter>\w+)\s*=\s*(?<frequency>\d{1,2}\.\d+)/
 => #<MatchData "e = 11.1607" letter:"e" frequency:"11.1607">
1.9.2p290 :030 > m.names
 => ["letter", "frequency"]
1.9.2p290 :031 > m["letter"]
 => "e"
1.9.2p290 :032 > m["frequency"]
 => "11.1607"

Jesus.