Seems to me that everything to the right of the grep (or rather, the regex that is passed to grep) is evaluated as an expression to be passed in to grep. Without the parens, you're really doing: 
grep( /regex/, @array ? 1 : 2 );

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Randal will disagree, I'm sure, but I always say "when in doubt, use parens".

xoxo,
Andy
--
<megaphone> Throw down the gun and tiara and come out of the float! </megaphone>

In reply to Re: Precedence of grep vs. ?: by petdance
in thread Precedence of grep vs. ?: by blackjudas

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