in reply to Re^3: [bugs?] perldoc perlre, \G and pos()
in thread [bugs?] perldoc perlre, \G and pos()

And I said if it "*thinks* it hasn't matched yet" the while condition is false not true!

Cheers Rolf

  • Comment on Re^4: [bugs?] perldoc perlre, \G and pos()

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Re^5: [bugs?] perldoc perlre, \G and pos()
by ikegami (Patriarch) on Sep 29, 2009 at 15:31 UTC

    1st Pass: It thinks it hasn't matched yet because pos == 0, so it matches, setting pos = 0.
    2nd Pass: It thinks it hasn't matched yet because pos == 0, so it matches, setting pos = 0.
    3rd Pass: It thinks it hasn't matched yet because pos == 0, so it matches, setting pos = 0.
    ...

[reply]
      while() puts scalar context, so just _one_ try to match, and no match results in false!

      ...no repeated matches like in list context.

      Cheers Rolf

[reply]

        You clearly see that it does match, so why do you keep saying it doesn't match in response to my explanation?

        1st Pass: It thinks it hasn't matched yet because pos == 0, so it matches, setting pos = 0.
        2nd Pass: It thinks it hasn't matched yet because pos == 0, so it matches, setting pos = 0.
        3rd Pass: It thinks it hasn't matched yet because pos == 0, so it matches, setting pos = 0.
        ...

        ...no repeated matches like in list context.

        The while isn't there for decoration. It's the one doing the repeating.

[reply]
[d/l]

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