From: Sebastian Hungerecker <sepp2k@...>
Date: 2007-12-19T05:07:51+09:00
Subject: Re: New to ruby

Drew Olson wrote:
> Sebastian Hungerecker wrote:
> > Drew Olson wrote:
> >> user = line.scan(/US=(\w+)/).flatten.first
> >
> > user = line[/US=(\w+)/, 1]
>
> Thanks for posting that. I'm always finding myself needing something
> similar and had a feeling there was an easier syntax.

You're welcome. There also Regexp#match if String#[] is not enough (e.g. if 
you need to access the values more than one capturing group), but you still 
only need one match:
md="I have 100 dollars for you.".match(/(\d+) (dollars|euros)/)
md[0] #=> "100 dollars"
md[1] #=> "100"
md[2] #=> "dollars"

You only need scan when a match can occur multiple times in a string.


HTH,
Sebastian
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