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Re^3: Chapter 8 of intermediate perl

by brian_d_foy (Abbot)
on Jun 26, 2008 at 05:43 UTC ( #694108=note: print w/ replies, xml ) Need Help??


in reply to Re^2: Chapter 8 of intermediate perl
in thread Chapter 8 of intermediate perl

Chapter 8 in Intermediate Perl is about "Filehandle References", and it's current up to 5.8. We cover lexical filehandles and the three argument open, but we also cover the IO::Handle modules too. We have three exercises for that chapter, so we use a different technique for each answer.

As with all of our answers, it's only one way to do it. And, as with any teaching environment, you don't necessarily do things as you would in real life. Once you know the technique, you can forget it and use the one you like best. In this case, it would be the three-argument open in the section "An Even Better Way" :)

--
brian d foy <brian@stonehenge.com>
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Comment on Re^3: Chapter 8 of intermediate perl
Re^4: Chapter 8 of intermediate perl
by actualize (Monk) on Jun 28, 2008 at 05:09 UTC

    Wow, I never thought I would get a response from one of the authors. Thanks. Anyway, I was hoping to get more visibility into this specific technique.

    I like how file handles are created on the fly in this code. I was thinking that all the filehandles are created through autovivification and that a new update of that specific module closed some security holes by forcing stricter programming practices

    I am thinking the next step is to explicitly create the object with "new" if the islander hash key isn't present yet. Is there anything I can do to get the current code to run? Can I only do it by modifying the module itself?

    -actualize

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