You probably want to take one additional step and sort each of the keys by length, doing the longest first. This would allow you to catch a link to "foo bar" as well as individual links to "foo" and "bar" without getting inconsistent results. 
foreach (sort { length($b) <=> length($a) } keys %keywords) {
   ...
}

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In reply to Re: Re: Auto linking to words in a text file by Fastolfe
in thread Auto linking to words in a text file by belize

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