From: Alex Young <alex@...>
Date: 2007-08-02T07:08:53+09:00
Subject: Re: oddity with RegExp

Russell Fulton wrote:
> I'm clearly missing something!  I have a log analysis application that
> is written in Ruby and which uses REs to decide how to process log
> records.
> 
> I entered a pattern into one of my rules and it always failed to match
> so I fired up irb and set about reducing the pattern to something
> minimal:
> 
> [rful011@pateke selms-svn]$ irb
> irb(main):001:0> a = 'NT AUTHORITY\SYSTEM'
> => "NT AUTHORITY\\SYSTEM"
> irb(main):004:0> a =~ /AUTHORITY/
> => 3
> irb(main):005:0> a =~ /NT AUTHORITY/
> => 0
> irb(main):006:0> a =~ / AUTHORITY/
> => 2
> irb(main):007:0> a =~ /^NT /
> => 0
> irb(main):008:0> a =~ /NT /
> => 0
> irb(main):009:0> a =~ /NT/
> => 0
> irb(main):010:0> a =~ /N/
> => 0
> irb(main):011:0> a =~ /T/
> => 1
I'm not sure what you're expecting here - all these patterns are 
matching.  Have you got a failing pattern?

-- 
Alex