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Dana Jacobsen

  • About: I've been using Perl since 1991 (4.010 or so). At some point I realized that while I have used many languages, I enjoy using Perl more than any others.
  • Commented on Factoring integers in Perl
    For clarification, this is looking at prime factors. A table for modules and prime factors vs. divisors: Module prime factors divisors ------------------ ------------- ----------- Math::Big::Factors factors_wheel - Math::Factor::XS prime_factors factors Math::Factoring factor - Math::Prime::Util factor all_factors Math::Pari factorint divisors Pari...
  • Posted Factoring integers in Perl to Dana Jacobsen

    Recently I've been working on factoring and primality proofs (with certificates) for Math::Prime::Util. I thought I'd give a brief summary and comparison of the modules I know of for factoring integers from Perl.

  • Commented on I love CPANtesters and Travis-CI
    I’ll second this. I love CPANTesters, and thanks to LETO for turning me onto Travis-CI....
  • Commented on A couple of ideas for improving commenting/reviewing CPAN modules
    I just added a review (thanks for the push), and perhaps will add a few more. Many of the modules I use and feel like I have a review of are related to modules I've written. This makes me nervous...
  • Posted Crypt::RSA without Pari to Dana Jacobsen

    Crypt::RSA is a module that's been around since 2001, when Vipul Ved Prakash put it on CPAN. It's had only very minor updates since then, and gets used by a few other modules. However, it's had one big problem: it uses

  • Commented on Zotero/Perl integration
    Fantastic! I let all my bibliography software lapse years ago, but I'd be all over this if I wasn't doing other work. I used Zotero when I did my last degree and recommend it highly. Especially for storing not only...
  • Commented on Identifying CPAN distributions you could help out with
    OK, so you shamed me into submitting patches. Well done! :) Based on the comments on Crypt::RSA I'm not sure if the author is still around however. Overall, I like the idea of something like this list. I like most...
  • Commented on Identifying CPAN distributions you could help out with
    Hmm, I just submitted two bugs for Crypt::Primes, which probably made it go to the top. One would be pretty easy to fix, the other is a critical breakage and would require more thought, but isn't huge. But I already...
  • Commented on Perl 5 Porters Weekly: November 26-December 2, 2012
    I would love it if we would move rand() to a standard RNG like MT or ISAAC, and then configuration would handle how to do a good default seed (O/S specific). Keep the srand interface. Randbits could be 53 everywhere....
  • Commented on Have Lunch with a Perl Celebrity
    I'll look after talks. There absolutely was nothing there during lunchtime today. I walked the whole area multiple times...
  • Commented on Have Lunch with a Perl Celebrity
    If only the poster boards were visible......
  • Commented on Perl 5.16.0 installed
    I can't imagine why you'd have an old perlbrew, but just in case -- parallel testing was added in 0.18. Going into ~/perl5/perlbrew/dists, untarring perl-5.16.0 and going into that directory: 2 processor Core2 6400: 38s sh ./Configure -des 2m 14s...
  • Commented on Mo Moo Moose
    That is neat. Don't forget Mouse in the hierarchy. You get a bunch more of Moose, but quite a bit faster than all of Moose (my current project runs 2x faster with Mouse vs. Moose, and it looks like a...
  • Commented on How to remove a carriage return (\r\n)
    See man pages for perlre, perlrecharclass, and perlrebackslash. \v matches vertical whitespace, which are the characters shown above as of Unicode 6.0: [\x0A-\x0D\x85\x{2028}\x{2029}] \R matches these and multi-character newline sequences. This means it can't be used inside bracket character matches...
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