Issue #361 - 2018-06-25 - Perl 5.28.0 is now available!

latest | archive | edited by Gabor Szabo
This edition was made possible by the supporters of our cause.
Don't miss the next issue!

Hi there!

I hope you'll have a few minutes between two World Cup games to check out some of the articles.

A new version of Perl has been released. Go play with that.

Also today is the date that will shut down and redirect everything to Let's thank Graham Barr and all the other people who helped him build it and maintain it for almost 20 years.

Let's also wish good luck to the developers and maintainers of MetaCPAN who will now receive all the traffic. Give them a hand improving and supporting this application!

Enjoy your week!

Gabor Szabo

Sponsors offers a 10% discount to the Perl Weekly community

As a proud supporter of the Perl community, StickerYou is happy to offer a lifetime 10% discount on all custom stickers, business labels, roll labels, vinyl lettering, custom decals, badges and more. is your one-stop shop to make your business stick! Use code PERL10 at checkout to apply your discount.

Announcements - A new way to perldoc

by Dan Book (DBOOK)

A new site that shows the documentation of Perl. Very nice! I'd love it to be part of MetaCPAN though as I don't think people (especially beginners) should need to know what is part of Perl and what is an external module.


Marpa and combinator parsing

by Jeffrey Kegler (JKEGL)

In the post on procedural parsing, the subparsers were like combinators, in that they could be called recursively, so that a parse could be built up from components. Like combinators, each child could return, not just a parse, but a set of parses. And, as in combinators, once a child combinator returned its value, the parent parser could resume parsing at a location specified by the child combinator.


by Neil Bowers (NEILB)

A one-day conference on ethics for developers and technologists in London on July 13th. A few Perl-related companies are also among the sponsors.

Parsing left recursions

by Jeffrey Kegler (JKEGL)

A lot has been written about parsing left recursion. Unfortunately, much of it simply adds to the mystery. In this post, I hope to frame the subject clearly and briefly.


Swat v. 0.2.0

by Alexey Melezhik (MELEZHIK)

Simple Web Application Test is a Web testing framework using Outthentic::DSL. This version has some -minor- breaking changes.



Perl Tutorial

A section for newbies and for people who need some refreshing of their Perl knowledge. If you have questions or suggestions about the articles, let me know and I'll try to make the necessary changes. The included articles are from the Perl Maven Tutorial and are part of the Perl Maven eBook.

Useless use of private variable in void context

by Gabor Szabo (SZABGAB)

The Useless use of hash element in void context warning that you might get if you follow my suggestion and turn on warnings in Perl.

Perl 6


The history of CPAN

by Neil Bowers (NEILB)

While trying to find the date when was created I bumped into this GitHub repository. Fascinating.

Weekly collections

Event reports


NLPW - Dutch Perl Workshop 2018

July 7, 2018, Arnhem, The Netherlands

The Perl Conference in Europe

August 15-17, 2018, Glasgow. The Call for Papers is open.

Nordic Perl Workshop and MojoConf 2018

September 6-7, 2018, Oslo.

Swiss Perl Workshop

September 7-8, 2018 Bern.

London Perl Workshop 2018

Saturday 3rd November 2018 London

Perl Jobs by Perl Careers

Perl for High Performance; Senior Developer, London

Household name in the UK looking for an excellent problem solver

Do some good in the world – Perl developers required for a charity and giving-focused team in Kent, UK

Join the Kickstarter of the charity world, supporting activists and causes around the world

Largest Perl team in London with beautiful Docklands offices

Run by a Perl-loving CTO in beautiful offices with a great view over Canary Wharf, the company manages one legacy Perl codebase and a whole bunch of very new, very shiny, and very modern codebases

You know, you could get the Perl Weekly right in your mailbox. Every Week.
Free of charge!

Just ONE e-mail each Monday. Easy to unsubscribe. No spam. Your e-mail address is safe.
Perl Weekly on Twitter RSS Feed of the Perl Weekly. Updated once a week