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Re: Beginners guide to File::Find

by rinceWind (Monsignor)
on Dec 03, 2002 at 10:57 UTC ( #217174=note: print w/replies, xml ) Need Help??


in reply to Beginners guide to File::Find

Excellent, spurperl, a good introduction to a very useful module. There's a couple of points I feel should be included though.

File::Find is cross-platform. It's one of the really handy ways for iterating directory trees on Windows - something Microsoft don't encourage you to do, with their 'hidden files' (File::Find X-rays through Windows hidden files mechanism nicely :-).

There's also a gotcha about the direction and number of the slashes. The value of $_ and $File::Find::name is not what you would expect in Windows.

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Re: Re: Beginners guide to File::Find
by spurperl (Priest) on Dec 03, 2002 at 11:14 UTC
    Thanks for the feedback rinceWind

    I will include a notice about the cross-platformness of Find.

    Also, the slashes thing - I assume it mostly applies to Windows ? If so, I've seen a nice explanation about these things in another tutorial - Paths in Perl, perhaps I can include a pointer to it

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[Discipulus]: good morning Corion!
[Corion]: I spent parts of yesterday digging into Filter::Simple to make it not change the line numbers of unfiltered code, but I think I need regex help (which will come in a SoPW I guess). I tried @lines = /((?:"...."|[^" \n]+)\n)/gs, but that matched on...
[Corion]: ... foo "\0\0\0\n" bar\n by matching the first \n instead of matching the four-bytes-in- double-quotes part
[Corion]: ... and I still don't understand why ;)
[Corion]: This is because Filter::Simple does some string-trickery, replacing all string literals with "quoted packed numbers"
[Corion]: I fear this might be a bug in the RE engine, but if it is a bug, even fixing won't help me because I need Filter::Simple for Filter::signatures , which provides signatures as a backwards compatibility feature for Perl <5.22 - and these ...
[Corion]: ... won't get a fix anyway ;) My plan B is to encode the string placeholders avoiding \r and \n

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