in reply to if fooled by pesky leading white space
I have found http://www.regular-expressions.info/quickstart.html very helpful working with regex's. Lots of good examples.Also I found tools like http://www.txt2re.com/ or Eclipses regex tool to be helpful in debugging my regex commands.
-- Grey Fox
"We are grey. We stand between the darkness and the light" B5
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Seekers of Perl Wisdom