I want to match "bar test" not preceded by "foo" and also account for multiple whitespace characters. 

my $regex = "(?<!foo)\\s+bar\\s+test";
my $txt = "foo    bar \ntest";

if($txt =~ /($regex)/i) {
   print "match";
} else {
   print "not a match";
}

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I would expect it to not match but it does. What is wrong with the regex?

In reply to look behind with multiple whitespace characters by RK

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