in reply to Regex being stupid

In addition to what others have pointed out, the '@' in the regex needs escaping. @( is a valid variable name in perl (that happens to have zero elements in it normally).

Dave.

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Re^2: Regex being stupid
by Grimy (Pilgrim) on Sep 19, 2013 at 08:53 UTC
    While it is true that @( is a valid variable name, it doesn’t interpolate: 
    @( = (42, 12);  # valid statement
print "@(";     # doesn’t print '4212' but '@('
print '@(';     # same as above (obviously)

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    Thus, the @ in the regex doesn’t need escaping, strictly speaking. I’d still recommend escaping it, for clarity and maintainability.
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