From: Anders Vesterberg <anders1@...>
Date: 2006-08-08T17:31:17+09:00
Subject: value of $1is retained

Hi
I am using regexp in a loop to extract a value from a
string. I have noticed that when string is nil $1 keeps its
old value, which means that the expression after regexp
does not get the correct value (which should be nil). The
code looks like this

(0..key_colnames.length-1).each do |i|
  person_data[key_colnames[i]] =~ /\"?([\w\-: ]*)\"?/	
  # assigning $1 to something
end

Shouldn't the $-variables be reset after each regexp? Or is
it a better way to do this?

/Anders Vesterberg
http://www.vesterberg.se