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Re: Re: what's this loo code?

by Anonymous Monk
on Feb 06, 2003 at 15:07 UTC ( #233155=note: print w/ replies, xml ) Need Help??


in reply to Re: what's this loo code?
in thread what's this loo code?

that's interesting. how does that '}{die' thing work ? why doesn't perl complain of mismatched braces or something


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Re: Re: Re: what's this loo code?
by BrowserUk (Pope) on Feb 06, 2003 at 16:04 UTC

    Take a look at the documentation for the -p and -n switches in perlrun. In prasee er...short, it says

    -p causes Perl to assume the following loop around your program, which ma +kes it iterate over filename arguments somewhat like sed: LINE:while (<>) { # your program goes here } continue { print or die "-p destination: $!\n"; }

    If you substitute the 'program' eg. "}{die" where the comment above says " your program goes here", then you willl see how the thing works.


    Examine what is said, not who speaks.

    The 7th Rule of perl club is -- pearl clubs are easily damaged. Use a diamond club instead.

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