From: Hal Fulton <hal9000@...>
Date: 2006-04-06T08:18:21+09:00
Subject: Re: Copying $1.. A loop with two regular expressions

Oky wrote:
> Hi, sorry if this is a stupid question.. i've only been programming ruby 
> for about six hours.
> 
> I'm trying to white a loop to parse through a webpage and get all the 
> links to other pages. This loop depends on a regular expression to find 
> all the <a href tags.. but inside the loop there is another regular 
> expression which looks to see if the link is relative or static. The 
> problem is the inner regular expression changes the $1 variable so the 
> loop just fails on the first iteration. I've tried making a copy of the 
> $1 variable but the result just ends up containing nil.

Are you trying to use a command line argument? If so, try ARGV[1]
instead of $1 (which is a global variable storing the text of the
first subexpression in the most recent match.


Hal