If you're going to split and use a hash to check for uniqueness, its still possible to retain the original order (first occurances only, of course) 
my %seen;
$text = join(' ', grep !$seen{$_}++, split(' ',$text));

[download]
Though, this removes all the newlines as well....

-Blake

In reply to Re2: remove duplicates by blakem
in thread remove duplicates by cruelty

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