From: Timothy Hunter <cyclists@...>
Date: 2005-12-24T00:02:52+09:00
Subject: Re: Quick Regex Query

Neowulf wrote:
> Hi all,
> 
> Really quick one for the regex gurus...
> 
> Anyone know of a regex string which will extract out the stuff between
> "from" and "not" without the spaces between?
> 
> User root from toronto-hs-216-138-233-211.s-ip.magma.ca not allowed
> because not listed in AllowUsers
> 
> I've found something which *almost* does the job...
> 
> \bfrom\W+(?:\w+\W+){1,6}not\b
> 
> This is limited however, as I can't know for certain how many "words"
> will make up the hostname.
> 
> I've got a non-regex solution already, but you don't want to know how
> that one works...
> 
> ... something to do with using split and relying on the fact that the
> host name field always end up at the same index.
> 
> Seems more than a little clunky.
> 
> Any advise appreciated.
> 
> Cheers
> 
> ~Neowulf
> 

str = "User root from toronto-hs-216-138-233-211.s-ip.magma.ca not 
allowed because not listed in AllowUsers"

m = /from (.*?) not/.match(str)
puts m[1]