From: Brian Candler <B.Candler@...>
Date: 2003-07-07T08:01:35+09:00
Subject: Re: Need regex to match "^\n"

On Mon, Jul 07, 2003 at 07:55:52AM +0900, Jim Freeze wrote:
> Hi:
> 
> I am looking for a regex that will match a line with a single
> carrot:

or caret :-)

>  line = "^\n"
> 
> However, the obvious does not seem to work:
> 
> 
> irb(main):001:0> line1 = "^\n"
> => "^\n"
> irb(main):002:0> line2 = "fred"
> => "fred"
> irb(main):003:0> /^^/ =~ line1
> => 0
> irb(main):004:0> /^^/ =~ line2
> => 0
> 
> Using /^\^/ gives an error.

This looks like an irb-ism. I get the same as you within irb, but within
real code:

$ cat x.rb
line1 = "^\n"
line2 = "fred"

p line1 =~ /^\^/
p line2 =~ /^\^/

$ ruby x.rb
0
nil
$ ruby -v
ruby 1.6.8 (2002-12-24) [i386-freebsd4.8]

Regards,

Brian.