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Postings from February 2012
Hello porters, if memory serves, it has always been the case that Perl 5 could easily allow arbitrarily stacked statement modifiers, but Larry consciously chose to forbid this, with an eye toward the readability of code. For Perl 6, he has recanted very slightly. Arbitrary stacking is still forbidden in Perl 6, but two modifiers can be stacked as long as one is a conditional (if, unless, when) and the other a loop (while, until, for/-each). I like this solution a lot. It covers all of the cases in which I’ve ever had a reasonable (to me!) hankering for stackable modifiers, while preventing almost all the abuse caught by the stricter, older rule. Would it be hard to steal this for Perl 5? Would it cause any problems? Regards, -- Aristotle Pagaltzis // <http://plasmasturm.org/>Thread Next