MESSAGE
| DATE | 2025-12-01 |
| FROM | Gabor Szabo
|
| SUBJECT | Subject: [Hangout - NYLXS] [Perlweekly] #749 - Design Patterns in Modern Perl
|
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Date: Mon, 01 Dec 2025 06:36:53 +0000 (UTC)
From: Gabor Szabo
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Subject: [Hangout - NYLXS] [Perlweekly] #749 - Design Patterns in Modern Perl
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Perl Weekly=20
https://perlweekly.com/
You can read the newsletter on the web, if you prefer.
https://perlweekly.com/archive/749.html
Hi there!
The big announcement is that Mohammad Sajid Anwar who runs The Weekly
Challenge ( https://theweeklychallenge.org/ ) and who is the other editor
of the Perl Weekly newsletter, has published his first book called Design
Patterns in Modern Perl ( https://perlschool.com/books/design-patterns/ ).
You can buy it both on Amazon and on Leanpub. Leanpub gives you the option
to change the price so you can also use this opportunity to give a one-time
donation to him. As far as I know, Leanpub also gives a much bigger part of
the price to the author than Amazon does. You can also ask them to send the
book to your Kindle or you can upload it yourself (
https://www.amazon.com/sendtokindle ). I already bought it and started to
read it. Now you go, buy the book! (
https://perlschool.com/books/design-patterns/ )
In just a few hours we are going to have the online meeting Perl
Code-reading and testing. You can still register here (
https://luma.com/perl-maven ).
Perl on WhatsApp: I am part of a lot of WhatsApp groups about Python and
Rust and other non-tech stuff. I figured I could create one for Perl as
well. If you are interested join here (
https://chat.whatsapp.com/LRrkZsSRDvGLLwppyLnKHy ). There are also two
groups on Telegram. One is called Perl 5 ( https://t.me/perlp ) that has
141 members and the other one is called Perl Maven community (
https://t.me/PerlMaven ) that I created, because I did not know about the
other one. The latter has 59 members. You are invited to join any or all of
these channels.
I started a poll (
https://www.facebook.com/groups/perlcommunity/posts/2104135043727444 ) in
the Perl Community Facebook group (
https://www.facebook.com/groups/perlcommunity ). There are already 63
votes. It would be nice if you answered too (
https://www.facebook.com/groups/perlcommunity/posts/2104135043727444 ).
Enjoy your week!
--
Your editor: Gabor Szabo.
Announcements
=20
Design Patterns in Modern Perl
https://perlschool.com/books/design-patterns/
=20
Manwar, congratulations! Everyone else, go buy the book! (comments (
https://www.reddit.com/r/perl/comments/1p9snhr/design_patterns_in_modern_
perl_perl_school/ ))
--------------
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Articles
=20
ANNOUNCE: Various updated wikis, including Perl.Wiki
https://blogs.perl.org/users/ron_savage/2025/12/announce-various-updated-=
wikis-including-perlwiki.html
=20
=20
--------------
=20
Dotcom Survivor Syndrome =E2=80=93 How Perl=E2=80=99s Early Success Creat=
ed the Seeds of Its Downfall
https://perlhacks.com/2025/11/dotcom-survivor-syndrome-how-perls-early-su=
ccess-created-the-seeds-of-its-downfall/
=20
I like the sentiment, but as one of the commenters (
https://www.reddit.com/r/perl/comments/1pall6h/dotcom_survivor_syndrome_h
ow_perls_early_success/ ) pointed out there was PHP as well.
--------------
=20
GitHub and the Perl License
https://blogs.perl.org/users/mikko_koivunalho/2025/11/github-and-the-perl=
-license.html
=20
In a nutshell, if you'd like to use 'the Perl license' you probably shoul=
d
include two separate license files. (comments (
https://www.reddit.com/r/perl/comments/1p8toyz/github_and_the_perl_licens
e_mikko_koivunalho/ ))
--------------
=20
Showcase: Localised JSON Schema validation in Perl + JavaScript (CodePen =
demo included!)
https://www.reddit.com/r/perl/comments/1p80dne/showcase_localised_json_sc=
hema_validation_in_perl/
=20
A small project that might interest anyone in dealing with form validatio=
n,
localisation, and JSON Schema in their Perl web applications / REST API.
--------------
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Web
=20
Catalyst::Request body issues with the file position pointer
https://dev.to/fleetfootmike/catalystrequest-body-issues-with-the-file-po=
sition-pointer-2k7l
=20
For those using the Perl Catalyst web framework in ways involving
structured request bodies (e.g. API POSTs)...
--------------
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
The Weekly Challenge
The Weekly Challenge ( https://theweeklychallenge.org ) by Mohammad Sajid
Anwar ( https://manwar.org ) will help you step out of your comfort-zone.
You can even win prize money of $50 by participating in the weekly
challenge. We pick one champion at the end of the month from among all of
the contributors during the month, thanks to the sponsor Lance Wicks.
=20
The Weekly Challenge - 350
https://theweeklychallenge.org/blog/perl-weekly-challenge-350
=20
Welcome to a new week with a couple of fun tasks "Good Substrings" and
"Shuffle Pairs". If you are new to the weekly challenge then why not join
us and have fun every week. For more information, please read the FAQ (
https://theweeklychallenge.org/faq ).
--------------
=20
RECAP - The Weekly Challenge - 349
https://theweeklychallenge.org/blog/recap-challenge-349
=20
Enjoy a quick recap of last week's contributions by Team PWC dealing with
the "Power String" and "Meeting Point" tasks in Perl and Raku. You will
find plenty of solutions to keep you busy.
--------------
=20
TWC349
https://deadmarshal.blogspot.com/2025/11/twc349.html
=20
Both solutions use a straightforward, single-pass approach that is
perfectly suited for the problem. They process the input string only
once, making them very efficient (O(n)) and demonstrating a solid grasp
of fundamental algorithmic thinking.
--------------
=20
Power Pointing
https://raku-musings.com/power-pointing.html
=20
The post is an excellent, practical demonstration of Raku's expressivenes=
s
and built-in functionality. It successfully showcases how Raku allows a
programmer to transition from a straightforward, imperative approach to a
concise, idiomatic, and highly readable functional solution.
--------------
=20
More complex than it has to be
https://dev.to/boblied/pwc-349-more-complex-than-it-has-to-be-2c7e
=20
The post presents a fascinating and honest case study of over-engineering=
.
Bob deliberately explores a complex, "enterprise-grade" solution to a
simple problem, contrasting it with the obvious simple solution.
--------------
=20
Meeting Strings
https://github.sommrey.de/the-bears-den/2025/11/28/ch-349.html
=20
This is an exceptionally well-crafted post. It demonstrates a deep
understanding of Raku's idioms and standard library, transforming simple
problems into masterclasses in concise, expressive, and functional
programming.
--------------
=20
moving and grepping
https://fluca1978.github.io/2025/11/24/PerlWeeklyChallenge349.html
=20
This is an exemplary post that demonstrates exceptional technical breadth=
,
deep practical knowledge, and a clear, effective pedagogical style. It
transcends being a mere solution set and serves as a masterclass in
polyglot programming and database extensibility.
--------------
=20
Perl Weekly Challenge 349
https://wlmb.github.io/2025/11/24/PWC349/
=20
The post demonstrates both deep Perl knowledge and strong pedagogical
skills, making complex solutions accessible while showcasing advanced
language features.
--------------
=20
Power Meets Points
https://github.com/MatthiasMuth/perlweeklychallenge-club/tree/muthm-349/c=
hallenge-349/matthias-muth#readme
=20
This post demonstrates expert-level Perl programming with deep language
knowledge and thoughtful engineering considerations. Matthias combines
elegant solutions with practical performance analysis.
--------------
=20
The Power of String
https://packy.dardan.com/b/eZ
=20
This is a high-quality technical post that successfully demonstrates how =
to
solve the same problems in multiple programming languages while
maintaining algorithmic consistency.
--------------
=20
Powering to the origin
http://ccgi.campbellsmiths.force9.co.uk/challenge/349
=20
This post demonstrates creative problem-solving with elegant regex
decrementing for Task 1 and a clever eval-based dispatch system for Task
2. Peter shows strong analytical thinking by carefully distinguishing
between final-position and intermediate-position checks, and makes
practical engineering trade-offs between cleverness and performance.
--------------
=20
The Weekly Challenge #349
https://hatley-software.blogspot.com/2025/11/robbie-hatleys-solutions-in-=
perl-for_26.html
=20
This is a well-structured, professional-grade solution with excellent
documentation and robust code organization. Robbie demonstrates strong
analytical thinking by carefully addressing potential ambiguities in the
problem statement and explicitly warning against common algorithmic
pitfalls.
--------------
=20
Power Meeting
https://blog.firedrake.org/archive/2025/11/The_Weekly_Challenge_349__Powe=
r_Meeting.html
=20
Roger demonstrates strong analytical skills by questioning the problem
statement itself and providing robust solutions for different
interpretations, showing both practical implementation skills and deeper
algorithmic thinking.
--------------
=20
Power Meeting
https://dev.to/simongreennet/weekly-challenge-power-meeting-21m0
=20
This is a clean, practical, and well-explained approach to the weekly
challenges. Simon demonstrates strong fundamentals with a clear,
step-by-step problem-solving methodology.
--------------
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Weekly collections
=20
NICEPERL's lists
http://niceperl.blogspot.com/
=20
Great CPAN modules released last week (
https://niceperl.blogspot.com/2025/11/dlxxvi-8-great-cpan-modules-release
d.html ).
--------------
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Events
=20
Perl Maven online: Code-reading and testing
https://luma.com/perl-maven
=20
December 1, 2025
--------------
=20
Toronto.pm - online - How SUSE is using Perl
https://lu.ma/v90mkqj5
=20
December 6, 2025
--------------
=20
Paris.pm monthly meeting
https://paris.mongueurs.net/
=20
December 10, 2025
--------------
=20
German Perl/Raku Workshop 2026 in Berlin
https://act.yapc.eu/gpw2026/
=20
March 16-18, 2025
--------------
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
You joined the Perl Weekly to get weekly e-mails about the Perl programming=
language and related topics.
Want to see more? See the archives ( https://perlweekly.com/archive/ ) of a=
ll the issues.
Reading this as a non-subscriber? Join us free of charge. https://perlweekl=
y.com/
(C) Copyright Gabor Szabo https://szabgab.com/
The articles are copyright the respective authors.
You can freely redistribute this message if
you keep the whole message intact, including
the Copyright notice and this text.
If you don't want to receive mails any more
you can unsubscribe here: https://perlweekly.com/unsubscribe.html
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1.0, user-scalable=3Dyes">
Perl Weekly Issue #749 - 2025-12-01 - Design Patterns in Modern Pe=<BR>rl
--68698902004532b992e5573619fbb2863c4a660dd8462ebb5a1f76996f1e--
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Hangout-at-nylxs.com
http://lists.mrbrklyn.com/mailman/listinfo/hangout
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Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain; charset=utf-8
Mime-Version: 1.0
Perl Weekly=20
https://perlweekly.com/
You can read the newsletter on the web, if you prefer.
https://perlweekly.com/archive/749.html
Hi there!
The big announcement is that Mohammad Sajid Anwar who runs The Weekly
Challenge ( https://theweeklychallenge.org/ ) and who is the other editor
of the Perl Weekly newsletter, has published his first book called Design
Patterns in Modern Perl ( https://perlschool.com/books/design-patterns/ ).
You can buy it both on Amazon and on Leanpub. Leanpub gives you the option
to change the price so you can also use this opportunity to give a one-time
donation to him. As far as I know, Leanpub also gives a much bigger part of
the price to the author than Amazon does. You can also ask them to send the
book to your Kindle or you can upload it yourself (
https://www.amazon.com/sendtokindle ). I already bought it and started to
read it. Now you go, buy the book! (
https://perlschool.com/books/design-patterns/ )
In just a few hours we are going to have the online meeting Perl
Code-reading and testing. You can still register here (
https://luma.com/perl-maven ).
Perl on WhatsApp: I am part of a lot of WhatsApp groups about Python and
Rust and other non-tech stuff. I figured I could create one for Perl as
well. If you are interested join here (
https://chat.whatsapp.com/LRrkZsSRDvGLLwppyLnKHy ). There are also two
groups on Telegram. One is called Perl 5 ( https://t.me/perlp ) that has
141 members and the other one is called Perl Maven community (
https://t.me/PerlMaven ) that I created, because I did not know about the
other one. The latter has 59 members. You are invited to join any or all of
these channels.
I started a poll (
https://www.facebook.com/groups/perlcommunity/posts/2104135043727444 ) in
the Perl Community Facebook group (
https://www.facebook.com/groups/perlcommunity ). There are already 63
votes. It would be nice if you answered too (
https://www.facebook.com/groups/perlcommunity/posts/2104135043727444 ).
Enjoy your week!
--
Your editor: Gabor Szabo.
Announcements
=20
Design Patterns in Modern Perl
https://perlschool.com/books/design-patterns/
=20
Manwar, congratulations! Everyone else, go buy the book! (comments (
https://www.reddit.com/r/perl/comments/1p9snhr/design_patterns_in_modern_
perl_perl_school/ ))
--------------
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Articles
=20
ANNOUNCE: Various updated wikis, including Perl.Wiki
https://blogs.perl.org/users/ron_savage/2025/12/announce-various-updated-=
wikis-including-perlwiki.html
=20
=20
--------------
=20
Dotcom Survivor Syndrome =E2=80=93 How Perl=E2=80=99s Early Success Creat=
ed the Seeds of Its Downfall
https://perlhacks.com/2025/11/dotcom-survivor-syndrome-how-perls-early-su=
ccess-created-the-seeds-of-its-downfall/
=20
I like the sentiment, but as one of the commenters (
https://www.reddit.com/r/perl/comments/1pall6h/dotcom_survivor_syndrome_h
ow_perls_early_success/ ) pointed out there was PHP as well.
--------------
=20
GitHub and the Perl License
https://blogs.perl.org/users/mikko_koivunalho/2025/11/github-and-the-perl=
-license.html
=20
In a nutshell, if you'd like to use 'the Perl license' you probably shoul=
d
include two separate license files. (comments (
https://www.reddit.com/r/perl/comments/1p8toyz/github_and_the_perl_licens
e_mikko_koivunalho/ ))
--------------
=20
Showcase: Localised JSON Schema validation in Perl + JavaScript (CodePen =
demo included!)
https://www.reddit.com/r/perl/comments/1p80dne/showcase_localised_json_sc=
hema_validation_in_perl/
=20
A small project that might interest anyone in dealing with form validatio=
n,
localisation, and JSON Schema in their Perl web applications / REST API.
--------------
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Web
=20
Catalyst::Request body issues with the file position pointer
https://dev.to/fleetfootmike/catalystrequest-body-issues-with-the-file-po=
sition-pointer-2k7l
=20
For those using the Perl Catalyst web framework in ways involving
structured request bodies (e.g. API POSTs)...
--------------
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
The Weekly Challenge
The Weekly Challenge ( https://theweeklychallenge.org ) by Mohammad Sajid
Anwar ( https://manwar.org ) will help you step out of your comfort-zone.
You can even win prize money of $50 by participating in the weekly
challenge. We pick one champion at the end of the month from among all of
the contributors during the month, thanks to the sponsor Lance Wicks.
=20
The Weekly Challenge - 350
https://theweeklychallenge.org/blog/perl-weekly-challenge-350
=20
Welcome to a new week with a couple of fun tasks "Good Substrings" and
"Shuffle Pairs". If you are new to the weekly challenge then why not join
us and have fun every week. For more information, please read the FAQ (
https://theweeklychallenge.org/faq ).
--------------
=20
RECAP - The Weekly Challenge - 349
https://theweeklychallenge.org/blog/recap-challenge-349
=20
Enjoy a quick recap of last week's contributions by Team PWC dealing with
the "Power String" and "Meeting Point" tasks in Perl and Raku. You will
find plenty of solutions to keep you busy.
--------------
=20
TWC349
https://deadmarshal.blogspot.com/2025/11/twc349.html
=20
Both solutions use a straightforward, single-pass approach that is
perfectly suited for the problem. They process the input string only
once, making them very efficient (O(n)) and demonstrating a solid grasp
of fundamental algorithmic thinking.
--------------
=20
Power Pointing
https://raku-musings.com/power-pointing.html
=20
The post is an excellent, practical demonstration of Raku's expressivenes=
s
and built-in functionality. It successfully showcases how Raku allows a
programmer to transition from a straightforward, imperative approach to a
concise, idiomatic, and highly readable functional solution.
--------------
=20
More complex than it has to be
https://dev.to/boblied/pwc-349-more-complex-than-it-has-to-be-2c7e
=20
The post presents a fascinating and honest case study of over-engineering=
.
Bob deliberately explores a complex, "enterprise-grade" solution to a
simple problem, contrasting it with the obvious simple solution.
--------------
=20
Meeting Strings
https://github.sommrey.de/the-bears-den/2025/11/28/ch-349.html
=20
This is an exceptionally well-crafted post. It demonstrates a deep
understanding of Raku's idioms and standard library, transforming simple
problems into masterclasses in concise, expressive, and functional
programming.
--------------
=20
moving and grepping
https://fluca1978.github.io/2025/11/24/PerlWeeklyChallenge349.html
=20
This is an exemplary post that demonstrates exceptional technical breadth=
,
deep practical knowledge, and a clear, effective pedagogical style. It
transcends being a mere solution set and serves as a masterclass in
polyglot programming and database extensibility.
--------------
=20
Perl Weekly Challenge 349
https://wlmb.github.io/2025/11/24/PWC349/
=20
The post demonstrates both deep Perl knowledge and strong pedagogical
skills, making complex solutions accessible while showcasing advanced
language features.
--------------
=20
Power Meets Points
https://github.com/MatthiasMuth/perlweeklychallenge-club/tree/muthm-349/c=
hallenge-349/matthias-muth#readme
=20
This post demonstrates expert-level Perl programming with deep language
knowledge and thoughtful engineering considerations. Matthias combines
elegant solutions with practical performance analysis.
--------------
=20
The Power of String
https://packy.dardan.com/b/eZ
=20
This is a high-quality technical post that successfully demonstrates how =
to
solve the same problems in multiple programming languages while
maintaining algorithmic consistency.
--------------
=20
Powering to the origin
http://ccgi.campbellsmiths.force9.co.uk/challenge/349
=20
This post demonstrates creative problem-solving with elegant regex
decrementing for Task 1 and a clever eval-based dispatch system for Task
2. Peter shows strong analytical thinking by carefully distinguishing
between final-position and intermediate-position checks, and makes
practical engineering trade-offs between cleverness and performance.
--------------
=20
The Weekly Challenge #349
https://hatley-software.blogspot.com/2025/11/robbie-hatleys-solutions-in-=
perl-for_26.html
=20
This is a well-structured, professional-grade solution with excellent
documentation and robust code organization. Robbie demonstrates strong
analytical thinking by carefully addressing potential ambiguities in the
problem statement and explicitly warning against common algorithmic
pitfalls.
--------------
=20
Power Meeting
https://blog.firedrake.org/archive/2025/11/The_Weekly_Challenge_349__Powe=
r_Meeting.html
=20
Roger demonstrates strong analytical skills by questioning the problem
statement itself and providing robust solutions for different
interpretations, showing both practical implementation skills and deeper
algorithmic thinking.
--------------
=20
Power Meeting
https://dev.to/simongreennet/weekly-challenge-power-meeting-21m0
=20
This is a clean, practical, and well-explained approach to the weekly
challenges. Simon demonstrates strong fundamentals with a clear,
step-by-step problem-solving methodology.
--------------
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Weekly collections
=20
NICEPERL's lists
http://niceperl.blogspot.com/
=20
Great CPAN modules released last week (
https://niceperl.blogspot.com/2025/11/dlxxvi-8-great-cpan-modules-release
d.html ).
--------------
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Events
=20
Perl Maven online: Code-reading and testing
https://luma.com/perl-maven
=20
December 1, 2025
--------------
=20
Toronto.pm - online - How SUSE is using Perl
https://lu.ma/v90mkqj5
=20
December 6, 2025
--------------
=20
Paris.pm monthly meeting
https://paris.mongueurs.net/
=20
December 10, 2025
--------------
=20
German Perl/Raku Workshop 2026 in Berlin
https://act.yapc.eu/gpw2026/
=20
March 16-18, 2025
--------------
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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