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Re: Re: Barstool Trivia

by saucepan (Scribe)
on Dec 15, 2000 at 09:11 UTC ( #46792=note: print w/ replies, xml ) Need Help??


in reply to Re: Barstool Trivia
in thread Barstool Trivia

Were you thinking of creating a file boundary with do or require? Or does that not count? What about fork? :)


Comment on Re: Re: Barstool Trivia
Re: Barstool Trivia
by Dominus (Parson) on Dec 15, 2000 at 21:37 UTC
    Says saucepan:
    > Were you thinking of creating a file boundary with do or require?
    Yes, that's the only other one I could think of.

    Dan, what are we missing?

      Well, I warned you that it was an intentionally ambiguous question. My answers are from what the source considers different ways to start a scope, because I was playing around with that sort of stuff recently.

      So, so far we've got three correct answers. `eval STRING', a block, and a loop. Remember that `do' and `require' are really special cases of `eval STRING'. And yes, the source does distinguish between a loop and a block.

      There are four left which have yet to be named. I'll give you one more. This one is the last "easy" one, in that it's not completely surprising: `sub' starts a scope, and the source considers that different from a block.

      So there are three more out there. These ones, especially two of them, are completely obscure ways to start scopes.

      P.S. I too once knew the answer to the baseball question, but it's been too long. Base hit, walk, hit by pitch, dropped third strike, catcher's interference, fielder's choice, error. That's all I can think of, which is seven. My memory wants to say that a catcher's balk counts, but I think a catcher's balk has the same effect as a pitcher's balk. Hmm...

      -dlc

        Do you count the fact that a loop starts two scopes, not one?
        for (my $x = 0; $x < 10; ++$x) { # stuff my $y = $x; # more stuff }
        Note that $x and $y are in different scopes. $y is local to the body of the loop. $x is global to the loop.

        Also for some definition of scope, <package> starts a new scope.

        And if we want the source differing, an if starts a scope and is different from either a block or a loop - try to do redo and it ignores the enclosing if for the enclosing block or loop.

        I have also had occasion to run Perl code in a different process by opening a pipe to it, writing my code on the pipe, and then sending __END__. Does that count?

        What about running code using reval from Safe? Does that count as different from eval?

        Says dchetlin:
        > ...catcher's balk...
        There's no such thing as a catcher's balk; you made it up. A balk is when the pitcher deceives the base runners by interrupting his pitching motion so that he can throw to one of the bases instead. The penalty is that the base runners are each awarded an extra base. But the batter never advances to first on a balk.

        The seven you listed is the same as what I came up with. a referred me to a web page that purported to list ten, but I decided that three of them were no good. (The best of the lot was that the batted ball might hit a runner, but I believe that's scored as a hit regardless.)

        I guess this has nothing to do with Perl. Maybe I'll get on the worst nodes list!

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