brian d foy

• Website: www.theperlreview.com
• About: I'm the author of Mastering Perl, and the co-author of Learning Perl (6th Edition), Intermediate Perl, Programming Perl (4th Edition) and Effective Perl Programming (2nd Edition).

Recent Actions

• Commented on GitHub and the Perl License
  Thanks for figuring this out. Sometimes I think not even GitHub knows how these things work. For myself, I just use the Artistic License instead of the dual license, although there are some modules I adopted and have kept whatever...
• Commented on German Perl/Raku Workshop 2026 in Berlin - 16.03.2025-18.03.2025
  I messed up in the Reddit post because I read the English which has the start date as May, but it's correct in the German (if March is the actual month, as in the title): The new link: https://www.reddit.com/r/perl/comments/1otqhxo/german_perlraku_workshop_2026_in_berlin/...
• Commented on German Perl/Raku Workshop 2026 in Berlin - 16.03.2025-18.03.2025
  I put this in /r/perl but fixed up the dates in the title for what was in the body....
• Commented on Is it still worth adding installation instructions to a distribution?
  I think it's still worth it, and it's not causing problems to include it. I have this in my READMEs. You can install this module with a CPAN client, which will resolve and install the dependencies: % cpan Tie::Cycle %...
• Commented on A Quick Update on Dancer2 2.0.0
  And you just gave a talk about it: Dancer 2.0!...
• Commented on A pipe operator exists on perl v5.42?
  As for the pipe operator part of this post, the arrow is not going to do that. A proper pipe operator would feed all of the values from the left hand side to the right hand argument list. The arrow...
• Commented on A pipe operator exists on perl v5.42?
  This is just normal Perl 5 behavior, although your need v5.16 or later for CORE. Here's a demonstration that we build up in [Intermediate Perl](https://www.intermediateperl.com/) (and as a gist where I might expand this). The problem is that the arrow...
• Commented on MCE - How to?
  There's also David Farrell's Make your code run faster with Perl's secret turbo module....
• Commented on When Laziness Isn't
  Crap, this submitted when I was trying to change something. I had an `alias` example right before the `u 14` line. $ alias u="perl -le 'system q(uuidgen) for 1..$$ARGV[0]'"...
• Commented on When Laziness Isn't
  Heh, that's pretty clever to get to some number of values. However, you didn't need the reference: $ perl -le "system q(uuidgen) for 1..5" 76666A86-7155-4EBF-9ED4-F2625DE3CE55 CA1A8D82-467A-4682-8F96-FA0BE0800676 40850CBF-1A41-4803-BE9C-BD87B548826E 08DD5AB6-EBEC-40E9-B4AB-817708A0A584 8BCC70B1-4430-45C6-AF72-5A839EAE6DD5 There can even be a parameter in there: $ u 14...
• Commented on A deep dive into the Perl type systems
  Crosslink to /r/perl...
• Commented on Wide character (U+XXXX) in substitution (s///)
  Oh heck, I copied the error above the one I wanted. You can see in the (W locale) that this is a locale error: Wide character (U+%X) in %s (W locale) While in a single-byte locale (i.e., a non-UTF-8 one),...
• Commented on Wide character (U+XXXX) in substitution (s///)
  If you replace use warnings; with use diagnostics;, you get the longer error messages from perldiag: (S utf8) Perl met a wide character (ordinal >255) when it wasn't expecting one. This warning is by default on for I/O (like print)....
• Commented on London Perl & Raku Workshop 2024: Recordings & Thoughts
  Thanks for the videos! I empathize with the complexity of video, and it's why I don't do video. Changing a small mistake takes so much time compared to editing a text file. One of the YouTubers I follow did a...
• Commented on Weather::OWM released on CPAN
  +1 for weather APIs!...
• Commented on Let's add Git userdiff defaults for Perl and Perl 6
  This is over a decade later, but git now has this in core with many more patterns. See userdiff.c (which you already linked to). You still have to associate the file endings with a the perl driver as you show....
• Commented on Why does this not work
  You're trying to get a hash value, but you are using parens instead of braces. You get: he's barney (barney). he's fred (fred). Change your code to use braces for the single element access to the hash: $fn{"fred"} = "flintstone";...
• Commented on Carp::Object, an object-oriented replacement for Carp and Carp::Clan
  Very cool! And, someone remembered something I wrote almost 20 years ago. :)...
• Commented on System Thinking
  If you want to post anything to /r/perl, know that Reddit has some sort of filter on dev.to. If you message the mods we can approve the link. No idea why this is a thing, but it is in other...
• Commented on I just discovered Dev.to
  Note that Reddit filters out dev.to links that people submit, so if you have problems with that in /r/perl, contact the mods....
• Commented on ChatGPT for Perl Learning
  Reading might not be how younger generations consume info, but that's not the problem here. It has nothing to do with age or place in time. People have always looked for shortcuts and for ways to avoid learning. New technology...
• Commented on ChatGPT for Perl Learning
  I don't think we've had a hard time pumping out docs and examples. The bibliography of Perl books, including The Perl Cookbook, is long. If someone wants to learn Perl, everything they need is in some book....
• Commented on Ordering Your Tests
  Test::Manifest uses this feature to take the test order from a separate file (t/test_manifest)...
• Commented on Assert Your Environment
  This is brilliant and I must now delay everything I was going to do today to integrate it into everything. Seriously. This would have solved some problems from last week....
• Commented on Outstanding GitHub Items
  I had this problem a couple years ago. I was horrified that there were issues in my repos that I'd never seen because I thought I was good at responding to them even if I didn't have a fix. But,...
• Commented on Scalar Context: Lists Versus Arrays
  There's also the perlfaq4 answer to "What is the difference between a list and an array?" https://perldoc.perl.org/perlfaq4#What-is-the-difference-between-a-list-and-an-array?...
• Commented on Installing wxPerl for Strawberry Perl v5.32.0, or: Future of wxPerl?
  I've had this class of problem on macOS too. Raku's configure script would find a mix of tools from gcc and clang. Ah, I actually found the link: https://stackoverflow.com/questions/34781571/why-does-moarvm-complain-about-built-for-archive-which-is-not-the-architecture/35094347#35094347...
• Commented on Proposal for Perl Foundation Memberships
  What vital activities do you think TPF is funding? Conferences mostly raise their own money and TPF is a pass through. TPF is almost completely absent (or present in name only) for most things that keep working. Before you think...
• Commented on Reimagining perl5-porters email list for 2021 and beyond
  There are a few other solution issues aside from the functional aspects. If you look at p5p, a small number of people dominate conversations. It's not that they are more active, but they reply more and push their agenda more....
• Commented on Subject Verb Object notation; declarative Perl without the framework
  Generally, I try to hide all such technical details. A method can decide to do it's work any way it likes, including calling different packages. However, when you subvert all of that to make resolution specific, you now have to...

Comment Threads

• ysth commented on GitHub and the Perl License

  The CopyFilesFromBuild plugin can be used to include build files in the repo. But for something static like licenses probably easier to not create them during build.

• Tom Wyant commented on GitHub and the Perl License

  So that's how you make it work. I have had two license files for several years because it made it easier to test for obsolete license text. But I use LICENSES/Artistic and LICENSES/Copying (which is the name of the file the FSF puts the GPL in). Looks like I need to rearrange my licenses. Again.

  Thanks for figuring this out.

• Tom Wyant commented on GitHub and the Perl License

  Update: under CPAN Licensing Guidelines, The Perl and Raku Foundation recommends that dual-licensed packages put each license in a separate file in a LICENSES/ directory. Does this recommendation need to change?

• Mikko Koivunalho commented on GitHub and the Perl License

  For certain other policy files, such as CONTRIBUTING and CODE_OF_CONDUCT, GitHub allows three different locations:

  - The .github folder
  - The root of the repository
  - The docs folder

  But this DOES NOT APPLY to LICENSE-* files!

  https://docs.github.com/en/communities/setting-up-your-project-for-healthy-contributions/creating-a-default-community-health-file

  As for GitLab and other repository hosting providers…

• raf commented on GitHub and the Perl License

  It seems a bit flaky. It didn't work for me with LICENSE-Artistic-1.0 and LICENSE-GPL-1 ("the same terms as the Perl 5 programming language system itself"). Github only recognized the Artistic. Replacing LICENSE-GPL-1 with LICENSE-GPL-2 made github only recognize GPL-2. It only recognizes both when there is Artistic-2.0 and GPL-3.

  And github ignores the LICENSES directory.

  I use the REUSE Specification for licenses:

  REUSE - Make licensing easy for everyone
  https://reuse.software/

  I don't know if it's well-sup…