# /cat(?:(?!\s*dog))/

I don't understand why you wrap  (?!\s*dog) in a non-capturing group.

Give a man a fish:  <%-{-{-{-<

In reply to Re^2: search for 'cat' not followed by 'dog' by AnomalousMonk
in thread search for 'cat' not followed by 'dog' by b4swine

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