From: Leslie Viljoen <leslieviljoen@...>
Date: 2006-10-03T22:37:52+09:00
Subject: Re: regular expressions

On 10/3/06, Tom Allison <tallison@tacocat.net> wrote:
> I'm sorry if this has been done before, but I can't seem to find any good examples:
>
> I'm trying to search mail messages for headers based on the following:
>
> config = YAML.load_file('config.yaml')
>
> $stdin.each do |line|
>    puts line if line =~ /^Recevied:/ .. line =~ /by #{config['hostname']}/o
> end
>
> and guess what?  It doesn't work.
> If I hard code the hostname it works fine.
> But this and /by config['hostname']/ both fail to match.

To eliminate a possibility, do

p config['hostname']

just before the $stdin line there. I can't tell you how many times I
have forgotten about invisible newlines tacked onto my variables that
cause all sorts of matching to fail.


Les