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All the Perl that's Practical to Extract and Report

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  • It's harder to read code than to write it.

    This is why code reuse is so hard. This is why everybody on your team has a different function they like to use for splitting strings into arrays of strings. They write their own function because it's easier and more fun than figuring out how the old function works.

    Like most of what Joel has written, there is a lot of truth to this, but many of these observations are not as universal as he would have you believe.

    First off, I strongly disagree that any princ

    • When I first read that piece a couple of years ago, I had similar thoughts, that Joel went a bit overboard. However, I agreed with him in the general sense. Later that year when we decided to rewrite Perl, they were brought to mind again. Frankly, I've never been able to think too deeply about the purpose of Perl 6 without thinking about that Joel Spolsky piece. Thanks for the link, Nat. :-)
      • It's almost 2 years later, and I can say with conviction that Perl6 isn't a rewrite of Perl5 as much as it's a rethinking of Perl.

        Perhaps that's why it's causing The Fear in so many people...

      • Yup, I thought of perl6 too. But the basic problem I have with his article is how unscientific the premise is. There have been some spectacular "rewrite from scratch" failures. And some spectacular "rewrite from scratch" successes (NT, .NET, perl5). Therefore rewriting isn't always bad, therefore Spolsky's hardline is full of shit. And, even worse, useless. If rewriting from scratch isn't the only variable to consider, what are the others? He doesn't say.


        • Yeah. He says a lot of things that are great to keep in mind when deciding what to do with your old code, but you gotta take it with a grain of salt.