2018.02 FOSDEM Nearing

With only a few weeks to go, the schedule of the Perl Programming Languages devroom at FOSDEM 2018 (on 3 and 4 February) has been finalized. These are the Rakudo Perl 6 related presentations:

• Perl 6 on Jupyter by Brian Duggan.
• The Dynamo After Diffie
  Extending Disco-Era Crypto For Ubiquitous Secure Frameworking With Integral Mathematics (with Perl 6) by James Ellis Osborne III.
• Recycle Parsers With Grammar::Common in Perl 6 by Jeff Goff.

Of course, there will also be a Perl booth at FOSDEM 2018 with all sorts of free goodies such as stickers, tuits and promo leaflets. And Perl books, both Perl 5 and Perl 6, available to you at cost. Please come and visit FOSDEM, it’s big, it’s crowded, it’s in Brussels and it’s free!

Core Developments

• Zoffix Znet has been doing a lot in the past week. He made coercers of the type Int:D() (aka type-smileys) parse correctly, so they now work. He also fixed issues when hypering over a Blob or Buf, and made chainable operators 2.6x faster (42 < $a < 666 used to be slower than 42 < $a && $a < 666).
• Itsuki Toyota made sure that the type-smileys were immediately used in a lot of the Rakudo Perl 6 source code to improve error messaging on faulty input with type objects.
• Bart Wiegmans fixed some memory leaks in MoarVM.
• Nick Logan improved the .perl of CompUnit::Repository::FileSystem (aka CURFS) and CompUnit::Repository::Installation (aka CURI) objects.
• Moritz Lenz made Proc.status a read-only attribute, which it should have been from the beginning. He also improved the LTA error message when trying to interpolate a hash into a Regex.
• Jeremy Studer made sure that negated chained operators work correctly.
• Elizabeth Mattijsen made creation of Date and DateTime objects 1.6x faster. She also fixed .skip(*-3), which was documented to work, but didn’t.
• And many other smaller fixes and improvements.

Blog Posts

• Assuming roles by JJ Merelo.
• The Beginnings of the Grammar by Andrew Shitov.
• Let 1 + 2 * 3 = 9 by Andrew Shitov.
• Tracking down the say calls by Andrew Shitov.
• Tree Surgery by Jeff Goff.
• Variants of say by Andrew Shitov.
• Unifying the implementation of say by Andrew Shitov.
• Hidden gems of Perl.com by David Farrell.
• Parameterised roles by Andrew Shitov.
• Implementing negative array subscripts by Andrew Shitov.

Meanwhile on Twitter

• Catching Up by brian d foy.
• Regexes can have arguments by brian d foy.
• LEAVE dead handy by Zoffix Znet.
• if blocks can take signatures by Zoffix Znet.
• GitHub Perl 6 highlighting by Zoffix Znet.
• Poor man’s logger, anyone? by Zoffix Znet.
• 2018 StackOverflow Developer Survey by brian d foy.

Meanwhile on StackOverflow

• Cannot install Readline with zef by Eugene Barsky.
• Clear screen while using Readline module by Eugene Barsky.
• Not able to serve jupyter notebooks in binder by Suman Khanal.
• How to pass a class method as argument to another method of the class by BhaskarS.
• Passing methods as arguments by BhaskarS.
• Why do unicode quotes appear around a regex capture? by Betta George.
• Grammar a bit too greedy by JJ Merelo.
• Mixed-in object variables available in mixed-in role declaration by JJ Merelo.
• Using role signature in mixins by JJ Merelo.

Meanwhile on FaceBook

• Suman Khanal:
  

  Now Code-runner supports executing Perl 6 scripts in Visual Studio Code. Write a script and execute with the shortcut: Ctr+Alt+N

Winding Down

It was a week with a lot of people on well deserved holidays. But still a lot happened in the Rakudo Perl 6 world. So this is promising for the coming week. See you then again? And be safe!