Perl Weekly - all the articles published by Flavio Poletti

http://polettix.it

PAUSE: POLETTIX

@polettix

2011.08.28 in #5 Quick note on character encoding and using the JSON module
Flavio Poletti goes into a detailed description on how strings are handled within Perl regarding bytes and characters and how you should handle them. Then he explains how to use the JSON module to avoid issues with Unicode.
2011.09.09 in #7 DotCloud::Environment
Flavio Poletti introduces his 'yet to be fully released' module to make it easy to handle the environment in DotCloud
2011.11.19 in #17 Dist::Zilla, Pod::Weaver and bin
Flavio Poletti fights Dist::Zilla and Pod::Weaver in public. And wins! There is a certain value when someone describes the path to the solution and not only the solution. That helps people accept, that they are not expected to come up with a solution out of the blue. It also helps people learning the fine art of problem solving.
2012.03.24 in #35 Sets operations
Flavio Poletti created a command line tool that can take files and act on their lines as elements of sets to find out union and intersect and even to subtract one from the other. It looks interesting though I'd like to see an explanation of the use case his co-worker had that prompted the creation of this tool.
2012.03.28 in #36 Logging in Dancer
Flavio Poletti writes about the use of Log4perl together with Dancer.
2012.04.06 in #37 Parse::RecDescent and number of elements read on the fly
Flavio Poletti explains how he parses some grammar that has parts that are declared dynamically. Sort of changing the rules as you go along. I have a feeling that there should be an easer way to solve this but have not checked it deeply. Maybe you could do it? Maybe using Marpa?
2012.08.07 in #55 How to create Origami envelopes using Perl
I love it when people do nice things with Perl. I don't mean nice code, but nice results. Like in this case Flavio Poletti took a nice images, manipulated it a bit and created a printable PDF. All that using Image::Magick.
2013.12.26 in #127 Graphics::Potrace
Potrace is a tool to transform bitmaps into vector graphics. Graphics::Potrace, written by Flavio Poletti provides the Perl binding to it.
2015.02.15 in #186 Parachuting Whatever
"deployable" is a handful of tools to help you with remote management of multiple servers. It was born when there was no Puppet or Chef in town.
2015.04.26 in #196 wrapperl
Flavio presents his wrapperl script, which is on github. It provides a mechanism for localising scripts to multiple different environments.
2015.04.27 in #197 A general profile photo that looks in the camera
Flavio reminds us all that when you put a picture of a person on a slide (or a blog post, or an e-mail), make sure the person does not look away from the text. Either the person on the side should look at the text, s/he should straight ahead. The latter will indicate that the person on the page is interested in the reader.
2015.09.02 in #215 Changes, nags and git hooks
Want Dist::Zilla to check that the Changelog of your module has been updated before releasing a new version? Flavio did, and discovered that he was naught but a configuration away of total bliss.
2015.12.27 in #231 TeePee
Flavio introduces teepee — a command-line tool that takes JSON or YAML (eg retrieved from some API using curl) and lets you slice and dice parts of it.
2016.01.23 in #235 Pure-Perl XML
2016.04.01 in #245 Data::Tubes
If I am not mistaken it is a templating engine using tags that resemble the tags of Template::Toolkit and input data in PSKV format. That might stand for Pipe Separated Keys and Values.
2016.05.19 in #252 Travis-CI and Perl
Notes from Flavio on using Travis-CI with perl projects.
2016.06.11 in #255 POD speculation
Do you document your functions as =headN or in a list as =item ? (Editor: I think POD should have semantic tags such as =function and =method)
2016.10.10 in #273 Dokku - Your Tiny PaaS
Flavio introduces Dokku, a tiny platform-as-a-service, which aims to make it easy to deploy a single service on a machine. The example he presents is a simple Mojolicious app.
2016.11.27 in #279 WebService::Fake - but still usable!
Working on something interfacing to a web service, but don't want to hit the real web service during development? Well, you know the saying: fake it till you can make it (build on production).
2017.03.01 in #293 Telegram Keyboard Button Encoding
Telegram is a messaging service, one of the best-known features of which is end-to-end encryption of your messages. In the client you can define custom buttons, and Flavio has used Perl to abuse this feature.
2018.01.06 in #337 Some Maths for Dobble
2018.01.14 in #338 A Simple Telegram Bot
Flavio gives us a great how-to for building bots with Bot::ChatBots::Telegram.
2018.04 in #352 Invent Stories
A tiny post about a small app to draw random pictures, I hope you will enjoy!
2019.04.08 in #403 Hi from dibs... and more
A collection of articles about dibs, the Docker image build system
2019.04.08 in #403 Dibs - Remote Packs
2020.01 in #444 Reading QR Codes from Perl
2020.01.07 in #442 A RANDOM Maze with Curses
A brilliant thought provoking blog by Flavio. Please checkout the blog to learn about Curses.
2020.01.14 in #444 Scrape a Thread of Tweets
2020.01.20 in #444 Quotes-O-Matic
2020.04 in #457 Euclid's Elements, illustrated
2020.04.07 in #455 More constraint programming
2020.04.12 in #455 Many articles by Flavio
I did not have his blog in my feed reader so now you just get a link to all his recent post, but from now on I hope I'll be able to include more of his posts.
2020.04.20 in #457 Allocating games in tournaments - 6 players matches, premium
also: Allocating games in tournaments - a program
2020.04.22 in #457 The Spatial Game of Ur
2020.04.23 in #457 Conway's Game of Life
Also: Conway's Game of Life - Sweeping counting
2020.04.25 in #457 Newlines
2020.04.28 in #458 Ouch in Mojolicious
Flavio shared how to use Ouch in Mojolicious.
2020.05.05 in #459 Sorting an incidence matrix
2020.05.08 in #459 Resolving a (Steiner) design - constraints and search
2020.05.08 in #459 Vue this blog
Getting started to convert a plain blog to use Vue.js
2020.05.10 in #459 Content negotiation in Mojolicious
2020.05.11 in #460 A 4-faces die from a 6-faces die
Flavio sharing ideas how to deal with 4-faces die.
2020.05.14 in #460 Counting tags in this blog
Flavio shared Perl solution for counting tags in blog.
2020.05.19 in #461 A Quiz from my past self
What is Ordeal::Model::ChaCha20 ?
2020.05.20 in #461 Global string matching quirks
Looking at the source code of Ordeal::Model::Parser
2020.05.21 in #461 A parser for Ordeal::Model
2020.05.22 in #461 Ordeal::Model::Parser: grammar
2020.05.25 in #462 Ordeal::Model::Parser: parsing generics
Flavio shared generics parsing function using Ordeal::Model::Parser.
2020.05.26 in #462 Ordeal::Model::Parser: parsing
Flavio shared domain parsing function using Ordeal::Model::Parser.
2020.05.28 in #462 Git::Wrapper
Flavio shared his experience with Git::Wrapper. Must Read.
2020.05.29 in #462 ETOOBUSY automated publishing
Falvio shared his fun with automated publishing.
2020.05.30 in #462 Post status on Mastodon
Falvio shared his work on Mastodon.
2020.06.01 in #463 Post status on Twitter
use MojoX::Twitter; that leverages the excellent Mojo toolkit that is shipped with Mojolicious.
2020.06.02 in #463 Notifications for busypub
busypub, a little Perl program to automate publishing blog posts that were written beforehand.
2020.06.08 in #464 Some CC0 images
Interesting facts about the change in licensing of images by Pixabay.
2020.06.09 in #464 pgal
Fun project similar to iGal. Worth checking out.
2020.06.10 in #464 Path::Tiny
Find out more about Path::Tiny.
2020.06.11 in #464 Rebase and retag
Find out more about busypub system.
2020.06.12 in #464 Rebase and retag, but manually
Interesting take on Git hooks.
2020.06.13 in #464 Multipath TCP - reminder to study
Have fun with Multipath TCP.
2020.06.20 in #465 Restart from skfold
I was wondering why have Flavio not posted for so long
2020.06.21 in #465 skfold is usable!
skfold is a universal scaffolding tool. It sounds like a very nice project. It could be extended to all kinds of non-Perl projects to provide an 'easy way to get started with X'. The question though how can you make skafold easily distributable? Asking the users to install Perl and on top of that install skafold would probably limit the reach of the project.
2020.06.22 in #466 skfold - getting started with simple files
Quick and short introduction to skfold by Flavio.
2020.06.23 in #466 skfold - repeated files
In this blog, Flavio dealing issues with skfold.
2020.06.24 in #466 skfold - one-off files
Flavio sharing tips to use dibs module.
2020.06.25 in #466 Today I Learned: fatpack and PERL5LIB
Flavio shared the issue and fix using PERL5LIB.
2020.06.26 in #466 Fatpacked skfold
Finally getting skfold fatpacked.
2020.06.27 in #466 Dice for Bargain Basement Bathysphere (of Beachside Bay)
Flavio shared dice game in this blog.
2020.06.28 in #466 skfold - documentation
Deal with skfold documentation.
2020.07 in #471 Benchmarking simplified implementations of NestedLoops
Iterative counterparts of recursive function are not always more efficient.
2020.07 in #471 Iterator from loop
A way to turn an exhaustive loop into an iterator.
2020.07.01 in #467 Docker base images for Perl
Check out ,perldi,the GitHub repository of Docker images for Perl developer
2020.07.02 in #467 SVG documentation cleanup proposal
There are several modules on CPAN dealing with SVG and some of them has issues with their documentation.
2020.07.04 in #467 SVG DOM tree visit
I have written about SVG extensively. I event maintained the SVG module for some time and now Manwar is the maintainer. So I am happy Flavio is playing with it.
2020.07.06 in #468 Bézier curves
What is Bézier curves? well read the short blog to find out more about it.
2020.07.07 in #468 Posts publishing routine in a script
In the blog, Flavio shared his automation script for publishing.
2020.07.08 in #468 Derivatives of Bézier curves
If you read the earlier blog about Bézier curves then you are going to find this interesting as well.
2020.07.09 in #468 Extremes for Bézier curves
In this blog, Flavio take us through the mathematic formula behind the derivative for Bézier curves.
2020.07.10 in #468 Encoding pitfall
This was fun reading, as it solved the encoding issue in one of Flavio script.
2020.07.11 in #468 Parsing toolkit in cglib
Find out about Parser for Object::Model. I am not sure if I understood the point behind it.
2020.07.12 in #468 Parsing SVG paths
A complete solution to parsing SVG path, pretty serious coding.
2020.07.14 in #469 SVG path bounding box: segments
Where Flavio start looking into the SVG path bounding box... starting simple.
2020.07.15 in #469 SVG path bounding box: merge multiple boxes
Merging many bounding boxes together.
2020.07.20 in #470 Ellipses (for SVG): mapping to SVG representation
Flavio dealing with Ellipses in this short blog.
2020.07.21 in #470 Ellipses (for SVG): finding the center
Flavio continued playing with Ellipses finding the center.
2020.07.22 in #470 Ellipses (for SVG): parameter values
In this blog, Flavio trying to figure out parameter values.
2020.07.23 in #470 Ellipses (for SVG): transformation implementation
Time to de some transformation now in this blog.
2020.07.24 in #470 SVG path bounding box: arcs of ellipses
Exploring bounding box in this short blog.
2020.07.25 in #470 Trigger rebuild of blog in GitHub Pages
Interesting blog dealing with breakdown of GitHub services.
2020.07.26 in #470 Some Time Later
Flavio is having too much fun with SVG. Check it out yourself.
2020.07.27 in #471 Algorithm::Loops
NestedLoops from Algorithm::Loops
2020.07.28 in #471 A simplified recursive implementation of NestedLoops
A possible implementation that is compatible in interface but only offers a subset of the functionalities.
2020.07.29 in #467 skfold - a Docker image
Flavio responds to the question I asked 2 weeks ago about the ease of installation of skfold with 3 different answers. Which one do you like?
2020.07.30 in #467 suexec with user id 0
2020.08 in #475 A card layout - in Perl
2020.08.03 in #472 Support of dynamic dimensions for nested loops
Flavio nested lLoops implementation of the iterator solution.
2020.08.04 in #472 Deep clone of a data structure in Perl
Flavio shared various method of deep cloning.
2020.08.05 in #472 Encrypting with OpenSSL enc
Deep secret of openssl command is exposed in the blog.
2020.08.06 in #472 Log::Log4perl::Tiny
Find out the power of Log::Log4perl::Tiny as shared by Flavio.
2020.08.07 in #472 SVG path in a rectangle
Detailed SVG analysis with regard to dealing with rectangle.
2020.08.08 in #472 Term::ANSIColor and (lack of) the terminal
Did you ever want to have colourful terminal? Please checkout the blog for answer.
2020.08.09 in #472 JSON::PP - an unsung hero?
Flavio shared the little secret JSON::PP has been part of core Perl since May 2011.
2020.08.10 in #473 Module::Runtime
Module::Runtime helps you load modules whose name you don’t know beforehand.
2020.08.11 in #473 Digest and identifiers
Digest comes handy for generating quick and dirty identifiers.
2020.08.12 in #473 A couple thoughts about Perl 7
2020.08.14 in #473 Base64 in Perl
2020.08.15 in #473 Automated Mozart, by larsen
Larsen (aka. Stefano Rodighiero) used Markov chains to generate music automatically, starting from an example MIDI file. Alas, after some time his Automatic Music with Perl became a bit stale and the pointer to the code was lost...
2020.08.17 in #474 Rational numbers in Perl
Ever had to deal with rational numbers, please check out the blog for short introduction.
2020.08.18 in #474 Quick-and-dirty capturing of STDOUT in Perl
Another short and sweet introduction about capturing STDOUT.
2020.08.19 in #474 Capture::Tiny
Take it as a gentle reminder about the cool distribution.
2020.08.20 in #474 HMAC
Interesting take on hash-based message authentication code.
2020.08.21 in #474 HMAC in Perl
Flavio introduction to Digest::SHA.
2020.08.22 in #474 SVG Ellipses again: representing with NURBS
In this blog, Flavio shared the further discussion on SVG Ellipses.
2020.08.23 in #474 A card layout
Flavio playing with card layout in this blog.
2020.08.30 in #475 TechWorld with Nana
2020.09 in #477 Ordeal::Model gets a Raw backend
Ordeal::Model is a Perl module that basically serves the needs of ordeal, a small semi-public web application to randomly draw cards.
2020.09 in #479 Mojo::DOM
Another look at parsing XML... this time with more meat inside.
2020.09.02 in #480 PWC080 - Count Candies
Thoroughly discussed the task in great detail.
2020.09.04 in #476 Fixing an example in Mojolicious
Flavio fixed bug he found in a Cookbook for Mojolicious.
2020.09.08 in #477 EventSource and buffering
If your application serving the EventSource web service is behind a (reverse) proxy, you might want to know how to disable buffering.
2020.09.09 in #477 CORS quick note
Flavio writes: From time to time, I try to program a frontend/backend pair with a JavaScript-based part in the browser and a Perl-based backend on some server. And I regularly hit against the CORS wall. Yes, Cross-Origin Resource Sharing.
2020.09.10 in #477 Sending 204 'No Content' from Mojolicious
Set status to 204 AND pass an empty text/data too.
2020.09.11 in #477 New release of Bot::ChatBots::Telegram
Just upgrading the dependency.
2020.09.12 in #477 Trying Cairo: a Docker image
Cairo is a 2D graphics library with support for multiple output devices.
2020.09.13 in #477 Trying Cairo in Perl
2020.09.14 in #478 A wrapper for asciinema
It is nice introduction to Asciineme for me. Never heard of it before.
2020.09.18 in #478 Leader element
I loved the discussion of task. It is fun to see how others look at a particular problem. There is plenty to learn from it.
2020.09.19 in #478 PWC - Left Rotation
Flavio discussed various aspects of task. It is worth reading the discussion.
2020.09.21 in #479 CSS Sprites
CSS sprites can be cute
2020.09.22 in #479 PWC079 - Count Set Bits
Flavio made the blog to his daily blog routine. Cool attempt.
2020.09.23 in #479 PWC079 - Trapped Rain Water
A very interesting approach to Trapped Rain Water task. Nice work.
2020.09.24 in #479 Disabling autohistory in Term::ReadLine
It's possible to disable the autohistory feature in Term::ReadLine backends and take control of how to populate history.
2020.09.25 in #479 REX - Shallow XML parsing
Shallow parsing of XML with a regular expression.
2020.09.27 in #479 Monkey Patch
Looking at the internals of Mojolicious is always interesting.
2020.09.28 in #480 An update to quenv
Short blog post about quenv - quick environment
2020.09.29 in #480 One year of posting on ETOOBUSY
Finally completed one year of daily posting on ETOOBUSY.
2020.09.30 in #480 PWC080 - Smallest Positive Number
Nice and simple solution to the Smallest Positive Number task.
2020.10.01 in #480 Area of a triangle
Interesting way to figure out the area of a triangle.
2020.10.03 in #480 PDF::Reuse - deep diving in the past
Nice use of PDF::Reuse.
2020.10.04 in #480 Blog: align master to commit
Handy tips to align master.
2020.10.06 in #481 Area of a triangle, again
How the triangle's area should be really calculated.
2020.10.07 in #481 Stockpiling blog posts
Sometimes I can write a few posts ahead of time... but stockpile them for publishing when I run out of time. Git helps.
2020.10.08 in #481 PWC081 - Common Base String
Thorough analysis of Common Base String task.
2020.10.09 in #481 PWC081 - Frequency Sort
Interesting discussion about the Frequency Sort task.
2020.10.11 in #481 perl-c-ontinuos
A little shell script to keep a Perl program under check.
2020.10.13 in #482 PWC082 - Common Factors
Flavio continued fun with weekly challenge task Common Factors.
2020.10.14 in #482 PWC082 - Interleave String (but not really!)
Flavio discussing interleave string task with question.
2020.10.20 in #483 Stein's algorithm for GCD
Flavio read about Stein's algorithm for calculating the greatest common divisor between two integers and found it interesting.
2020.10.21 in #483 PWC083 - Words Length
Regex at its best, must read.
2020.10.22 in #483 PWC083 - Flip Array
Flavio shared detailed analysis of Flip Array task.
2020.10.28 in #484 PWC084 - Reverse Integer
Flavio continued his daily blog posts with yet another one sharing his solution to Reverse Integer.
2020.10.29 in #484 PWC084 - Find Square
Flavio discusses the Find Square task with great detail in this blog post.
2020.11.01 in #484 Add line numbers to code snippets
Flavio shared a tip to add line numbers to code snippets.
2020.11.03 in #485 Fantasy Name Generator - a parser
A parser for the grammar in Fantasy Name Generator
2020.11.04 in #485 Global matching in scalar context
2020.11.05 in #485 PWC085 - Triplet Sum
You don't want to miss this discussion on the subject. It is always fun to read Flavio's blog.
2020.11.06 in #485 PWC085 - Power of two integers
Flavio made the task look like a walk in the park. I loved this approach.
2020.11.08 in #485 Asciiquarium
Ascii fishes!
2020.11.11 in #486 PWC086 - Pair Difference
Flavio shared his solution to Pair Difference with a cool discussion.
2020.11.12 in #486 PWC086 - Sudoku Puzzle
Flavio made a difficult task look simple. Amazing blog post.
2020.11.13 in #486 Find fishy Pods in Kubernetes
Flavio was playing with Kubernetes in his blog post to figure out pods.
2020.11.14 in #486 Pointer to element
Flavio shared a gem of code to traverse a hash of hashes to get to a specific item.
2020.11.15 in #486 Hanging Persistent Volumes in Kubernetes
Flavio continued playing with Kubernetes with regard to Persistent Volumes.
2020.11.18 in #487 PWC087 - Longest Consecutive Sequence
Flavio took the discussion to another level. Highly Recommended.
2020.11.19 in #487 PWC087 - Largest Rectangle
Flavio once again shared nice ideas. Must Read.
2020.11.23 in #488 Variables, loops, and redirections
Interesting discussion about the very basics of variables, loops and redirections.
2020.11.24 in #488 Put a file in a Kubernetes Pod
Flavio has another gem of a blog post showing how to put a file in a Kubernetes pod.
2020.11.26 in #488 PWC088 - Array of Product
Flavio continued his weekly challenge journey, having so much fun.
2020.11.27 in #488 PWC088 - Spiral Matrix
Flavio's style of question and answer in his blog post makes me think again and again.
2020.11.29 in #488 Peek in containers
Take a peek into containers with this short blog post.
2020.12 in #481 A cheap trick to manipulate PERL5LIB
Manipulating PERL5LIB for locally installed programs.
2020.12.01 in #489 PWC089 - GCD Sum
I love Flavio in the same spirit as he mentioned me in this blog post. He is simply incredible.
2020.12.02 in #489 PWC089 - Magical Matrix
Flavio's engaging writing skill is very addictive. Please check it out yourself.
2020.12.03 in #489 The blessing of forgetting
Forgetting is good because you can enjoy the (re)discovery.
2020.12.11 in #490 PWC090 - DNA Sequence
One might say there is not much to talk about in DNA task. I would recommend Flavio's blog post to disprove that point.
2020.12.12 in #490 PWC090 - Ethiopian Multiplication
Straight to the solution without any discussion.
2020.12.15 in #491 PWC091 - Count Number
Flavio showing the power of Perl regexes. If that's not enough, then you also get non-regex solution as well.
2020.12.16 in #491 PWC091 - Jump Game
Flavio made the Jump Game task look like schoolboy job. Impressive.
2020.12.17 in #491 Advent of Code 2020 - Day 13
2020.12.18 in #491 Multidimensional Conway's Game of Life
Addressing Conway's Game of Life with a different approach for a multidimensional infinite space.
2020.12.20 in #491 Trying Marpa
Try Marpa to blow a mosquito with a cannon.
2020.12.22 in #492 PWC092 - Isomorphic Strings
Flavio knows the art of breaking task into pieces and then everything looks so simple and easy. Great job.
2020.12.23 in #492 PWC092 - Insert Interval
Flavio pictorial breakdown of Insert Interval task is really cool. Must Read.
2020.12.24 in #492 The Definitive Conway's Game of Life
Flavio introducing the Conway's Game of Life.
2020.12.26 in #492 Generalized Chinese Remainder Theorem
Flavio playing with Chinese Remainder Theorem. Nice trick with numbers.
2020.12.28 in #493 PWC093 - Max Points
As expected, Flavio took us to the another planet with great story line. Highly Recommended.
2020.12.29 in #493 PWC093 - Sum Path
Flavio dealt with 'Sum Path' task in a unique way. Interesting take, must read.
2020.12.31 in #493 2020 in retrospect
2021.01 in #497 AoC 2016/19 - Dynamic Josephus
I was very happy to get past puzzle 19 from the 2016 edition of Advent of Code, but let's admit two facts: I didn't demonstrate that the heuristic is actually a rule; This wouldn't help in some other general case.
2021.01 in #497 Permutations with Heap's Algorithm
All permutations over N objects can be generated by Heap's Algorithm.
2021.01.02 in #493 Dijkstra Algorithm - as functions only
2021.01.06 in #494 PWC094 - Group Anagrams
Flavio's style of blogging is very interesting. Reading his blog is a kind of magic; it always keeps you engaged.
2021.01.07 in #494 PWC094 - Binary Tree to Linked List
Flavio showing the power of code reuse and proving the point - 'Don't reinvent the wheel'.
2021.01.11 in #495 AoC 2016/11 - New algorithm: A*
On with Advent of Code puzzle 11 from 2016: moving to the A* algorithm.
2021.01.12 in #495 AoC 2016/11 - New representation
Adopting a new, more compact representation.
2021.01.13 in #495 PWC095 - Palindrome Number
Flavio is being a daily-blogging star. Please find yet another powerful discussion about 'Palindrome Number' task.
2021.01.14 in #495 PWC095 - Demo Stack
Before I read anything else, I check the section 'The questions' as it explains the technical errors in the task. It really scares me everytime.
2021.01.15 in #495 AoC 2016/11 - New parsing
Parsing inputs to fit the New representation.
2021.01.16 in #495 AoC 2016/11 - New identifier
A new identifier sub for the new representation.
2021.01.17 in #495 AoC 2016/11 - New heuristic
2021.01.18 in #495 AoC 2016/11 - New successors
2021.01.19 in #496 AoC 2016/11 - Part 2 solution
Setup search using AstarX.pm
2021.01.20 in #496 PWC096 - Reverse Words
Flavio using the power of regex to solve the "Reverse Words" task. Nice and easy to follow.
2021.01.21 in #496 PWC096 - Edit Distance
Straight implementation of pseudocode from Wikipedia. No fancy stuff. A pure Perl solution.
2021.01.22 in #496 AoC 2016/11 - Optimization
2021.01.23 in #496 AoC 2016/15 - Chinese Reminder Theorem - again!
Thank you Flavio for the refresher, it is always fun to revisit.
2021.01.24 in #496 AoC 2016/19 - Josephus problem
Never heard of it before, thanks to Flavio, I learnt something new today.
2021.01.25 in #497 AoC 2016/19 - Halving Josephus
Realizing the folly of their present-exchange rules, the Elves agree to instead steal presents from the Elf directly across the circle. If two Elves are across the circle, the one on the left (from the perspective of the stealer) is stolen from. The other rules remain unchanged: Elves with no presents are removed from the circle entirely, and the other elves move in slightly to keep the circle evenly spaced.
2021.01.27 in #497 PWC097 - Caesar Cipher
Flavio is not scared of an eval-based solution. Must Read.
2021.01.28 in #497 PWC097 - Binary Substrings
Flavio kept the binary substrings solution simple using just a for loop.
2021.01.30 in #497 Iterator-based implementation of Permutations
An iterator-based implementation of Permutations with Heap's Algorithm. You saw it coming.
2021.01.31 in #497 AoC 2016/24 - Brute-force for a Traveling-Salesman-like problem
On with Advent of Code puzzle 24 from 2016: a brute-force approach to a problem similar to the Traveling Salesman Problem.
2021.02 in #501 Line noise
How to make Perl much more readable by formatting the code. Though I am not sure having a variable called $star = '*'; is a good idea, neither do I easily understand multi-level ternary operators.
2021.02.02 in #498 AoC 2017/12 - Rediscovering Union-Find
Union-Find algorithm implemented in Perl.
2021.02.03 in #498 PWC098 - Read N-characters
You don't want to miss the Questions section followed by the solution. Great work.
2021.02.04 in #498 PWC098 - Search Insert Position
Flavio seems to have endless energy to carry on blogging on daily basis for months. The best part is that the quality is top of the range.
2021.02.05 in #498 xmpl - an example web application
A web application to demonstrate a persistent key-value store.
2021.02.06 in #498 xmpl - the key/value API
Explore the model behind the API for xmpl web application.
2021.02.08 in #499 xmpl - on-file key/value store
We will take a closer look at the implementation of an on-file key/value store in xmpl. This post is part of a series.
2021.02.09 in #499 xmpl - remote key/value store
We will take a closer look at the implementation of a remote key/value store in xmpl. This post is part of a series.
2021.02.10 in #499 PWC099 - Pattern Matching
Flavio made good use of Perl regexes to solve the "Pattern Match" task.
2021.02.11 in #499 PWC099 - Unique Subsequence
Flavio presented us two flavours: recursive and regex versions. Highly Recommended.
2021.02.12 in #499 xmpl - the API for browsers
We will take a closer look at the implementation of the API available to the browsers in xmpl. This post is part of a series.
2021.02.13 in #499 xmpl - the "healthz" API
A closer look at the implementation of the “healthz” API in xmpl. This is a series of posts.
2021.02.14 in #499 xmpl - the metrics API
A closer look at the implementation of the metrics API in xmpl. This is a series of posts.
2021.02.17 in #500 PWC100 - Fun Time
Flavio's beautifully laid out solution is very pleasing.
2021.02.18 in #500 PWC100 - Triangle Sum
I enjoy the story behind the solution. The solution itself is so trivial.
2021.02.22 in #501 Mojo::UserAgent introductory notes
Some notes about using Mojo as a web client.
2021.02.23 in #501 xmpl - remote key/value store healthz revisited
Changing approach to establish the health of a KVStore::Remote object for xmpl. With rationale.
2021.02.28 in #501 xmpl - visibility API
So you thought that the neverending series about xmpl was over, didn't you?!? Yet another little facility...
2021.02.28 in #501 IPC::Cmd considered harmful
I prefer to use Capture::Tiny, but it is not in the core. (Which is a whole separate discussion.) The post got extensive feedback on Reddit.
2021.03.03 in #502 PWC102 - Rare Numbers
For me, the section "The questions" is more important than "The solution". He explained in great detail.
2021.03.04 in #502 PWC102 - Hash-counting String
Flavio threw out a challenge to readers of his blog. Find out more about it.
2021.03.08 in #503 WebService::Fake update
One of the virtues of Perl is the long backward compatibility, but the developers of Mojolicious play by a different ruleset. They are ready to break backward compatibility to allow for development. It certainly has a disadvantage when it bites you, but maybe that's a better choice than being stuck with features that could be provided in a better way, or that were just plain wrong even when they were introduced. Perl has plenty of both. By being ready to pay the price of incompatible changes Mojolicious can clean up those issues.
2021.03.09 in #503 dibspack-basic enhancement for packages
2021.03.10 in #503 PWC103 - Chinese Zodiac
Flavio is on fire with his task analysis. Always pleasure to read his blog. Keep it up.
2021.03.11 in #503 PWC103 - What's playing?
The typo in the original task description seems to have confused him a lot. Anyway he got it in the end. Great.
2021.03.13 in #503 A path function in dibs
2021.03.15 in #504 Test::CLI
A very interesting find by Flavio that can make testing apps hassle-free.
2021.03.16 in #504 teepee
Quick introduction to teepee.
2021.03.17 in #504 PWC104 - FUSC Sequence
Flavio making good use of the bit operator to get the job done. Interesting.
2021.03.18 in #504 PWC104 - NIM Game
Interactive game by Flavio. Have fun.
2021.03.23 in #505 Mininet topology visualization with Graphviz
2021.03.24 in #505 PWC105 - Nth root
I am not sure if I understood the line "the exponentiation operator in Perl is right associative". I wish the was more discussion on this subject.
2021.03.25 in #505 PWC105 - The Name Game
I absolutely love "the questions" section and had a laugh. Keep up the humour.
2021.03.26 in #505 Poor man's sequence diagrams
2021.03.27 in #505 Mininet topology visualization with Graphviz from Perl
2021.03.28 in #505 Data::HexDump::XXD
... and at first I thought Flavio is talking about xkcd...
2021.03.29 in #505 Crypt::LE update
2021.03.30 in #506 A pull request for Crypt::LE
Flavio's contribution to Crypt::LE is very handy. Please check it out.
2021.03.31 in #506 PWC106 - Maximum Gap
Flavio's style of blogging is really cool as you don't just get a fine solution but also fun discussion as well.
2021.04 in #507 Rediscovering IPC::Exe
2021.04. in #506 Date::Parse
Flavio shared the power of Date::Parse. Find out the secret for yourself.
2021.04.01 in #506 PWC106 - Decimal String
Flavio went beyond what was expected in the task. I need to revisit hi blog post to get to the bottom of it.
2021.04.06 in #507 Fatpacking fatpack
Fatpack makes it easy to create a single-file distribution from your perl-only application. So how can you distribute Fatpack itself as a Fatpack?
2021.04.07 in #507 PWC107 - Self-descriptive Numbers
Flavio was curious to know the reason behind the weekly challenge. Well, the motto is to have fun and share knowledge. Thanks for your participation.
2021.04.08 in #507 PWC107 - List Methods
Flavio's fun story around the task is very creative. You don't want to miss it either.
2021.04.09 in #507 Readonly::Tiny
Readonly::Tiny is better than constant.
2021.04.14 in #508 PWC108 - Locate Memory
Flavio makes good use of the core Perl library. Nice interpretaion.
2021.04.15 in #508 PWC108 - Bell Numbers
Flavio shares the power of state variables. Please check it out yourself.
2021.04.17 in #508 Another trick for PERL5LIB
Flavio shared a really useful trick dealing with PERL5LIB.
2021.04.19 in #509 All positive integer sums, as an iterator
2021.04.20 in #509 All partitions of a set - preliminary considerations
2021.04.21 in #509 PWC109 - Chowla Numbers
Very nicely organised one-line subroutines. Looks elegant and clean. Great work.
2021.04.22 in #509 PWC109 - Four Squares Puzzle
Flavio never just solves the task but also gives us more than just solution. You don't want to miss out.
2021.04.23 in #509 All partitions of a set - rearranging addends
2021.04.25 in #509 All partitions of a set into same-sized subsets
2021.04.28 in #510 PWC110 - Valid Phone Numbers
Flavio never misses the opportunity to surprise us. Thanks for the short and sweet discussion on the subject.
2021.04.29 in #510 PWC110 - Transpose File
Flavio shared a special use of open(). Thanks for sharing the knowledge.
2021.04.30 in #510 Heail - head and tail together
Flavio once again created a very handy tool, Heail, in this blog post.
2021.05 in #511 xmpl - the page configuration API
xmpl allows you to set up a quick webbish example application that provides, at its basic level, a key-value store. With time, it has grown to support a few additional integrations, e.g. it supports Prometheus-compatible metrics and Kubernetes-compatible 'healtz' endpoints.
2021.05.01 in #510 JSONify a string
Flavio continued with his daily blogging series and presents how to stringify CSS as JSON.
2021.05.05 in #511 PWC111 - Search Matrix
I am amazed how algorithm complexity is calculated. I still don't understand it, sorry.
2021.05.06 in #511 PWC111 - Ordered Letters
Flavio always surprises me with his analysis. This time we get a Unicode lesson.
2021.05.07 in #511 All partitions of a set - W. Luis Mochán style
2021.05.08 in #511 Avoid the 'butterfly operator' with command-line options
2021.05.09 in #511 Substring DWIMmery
2021.05.12 in #512 PWC112 - Canonical Path
Flavio presented a very concise regex solution to the Canonical Path task. Thanks for sharing.
2021.05.13 in #512 PWC112 - Climb Stairs
Flavio shared a very interesting story and a unique algorithm. Well done. Keep it up.
2021.05.14 in #512 Complexity ramblings
Thank you Flavio for a detailed discussion on this subject.
2021.05.17 in #513 Killing spiders - a fresh look on Chowla Numbers
2021.05.19 in #513 PWC113 - Represent Integer
Flavio shared the mathematical expression for the task. Lot to learn from his work. Keep up the great work.
2021.05.20 in #513 PWC113 - Recreate Binary Tree
I have a high regard for those who present the tree like structure. Although it is not part of the task, some did it on their own. Thank you.
2021.05.25 in #514 Term::Twiddle
Flavio continued with his daily blog series and introduced Term::Twiddle with a nice short video.
2021.05.26 in #514 PWC114 - Next Palindrome Number
When I see no questions being asked in the blog post, it means a lot. It reminds me of my early days with Raku.
2021.05.27 in #514 PWC114 - Higher Integer Set Bits
Flavio used brute force method to get the desired result. Small and compact solution.
2021.06 in #517 The real PAUSE workaround
2021.06 in #517 Plot data on the terminal
2021.06.01 in #515 Open, sysopen, read, sysread... oh my!
open and read are usually fine
2021.06.04 in #515 Crypt::URandom
Crypt::URandom might come handy for portability.
2021.06.05 in #515 Crypt::Argon2
Using Crypt::Argon2 is probably a better alternative to Bcrypt password hashing.
2021.06.06 in #515 Mojolicious::Plugin::Authentication
Notes/tutorial for using Mojolicious::Plugin::Authentication.
2021.06.07 in #516 Mojolicious::Plugin::Authentication example
A practical use case showing the power of Mojolicious::Plugin::Authentication.
2021.06.09 in #516 PWC116 - Number Sequence
I enjoyed Raku solution more as it reminds me how I started using Raku. Brilliant job.
2021.06.10 in #516 PWC116 - Sum of Squares
Flavio's commentary on Raku features in interesting. Once again, the Raku solution wins the race for me. Thanks for sharing.
2021.06.12 in #516 use VERSION - but how?
Flavio sharing an interesting use of VERSION.
2021.06.13 in #516 EPAN - Exclusive Perl Archive Nook
Flavio's 10-year-old code is finally out in public.
2021.06.14 in #517 PAUSE workaround
PAUSE parses the text in your code to see which modules you provide. Unfortunately that means it also includes names that are only mentioned in the documentation or in strings that never get executed. This can lead to unpleasant side-effects. How can you avoid these?
2021.06.16 in #517 PWC117 - Missing Row
Flavio's regex magic for the Missing Rows task is mindblowing. It took me some time to understand it. Thanks for sharing.
2021.06.17 in #517 PWC117 - Find Possible Paths
Flavio's extensive discussion of the Find Possible Paths task is something you don't want to miss. It is the kind of discussion I always look for in a PWC blog. Thank you Flavio.
2021.06.18 in #517 More robust self-recursion
2021.06.20 in #517 One complete year, yay!
Only one year? It feels as if Flavio has been posting for ages... Congratulations!
2021.06.23 in #518 PWC118 - Binary Palindrome
Bitwise operations are rare these day.s Thank you Flavio for reminding us of them.
2021.06.24 in #518 PWC118 - Adventure of Knight
Usually Flavio keeps his blog posts short and sweet but for this task he went into more detail to share a behind the scenes story.
2021.06.28 in #519 A block... blocks
Unsurprisingly, a BLOCK in Perl blocks a lot of things, including a package statement.
2021.06.30 in #519 PWC119 - Swap Nibbles
2021.06.31 in #515 Random bytes and co.
Generating some randomness for seeds, using some salt for flavoring.
2021.07.01 in #519 PWC119 - Sequence without 1 on 1
2021.07.03 in #519 App::Easer
To write a CLI with a hierarchy of sub-commands. Something like the Git command-line interface client.
2021.07.04 in #519 App::Easer example
2021.07.05 in #520 App::Easer "multilevel" example
Cool example of App::Easer for you to try.
2021.07.07 in #520 PWC120 - Swap Odd/Even bits
Flavio explained the bit operations so brilliantly that any layperson can understand. Thank you for sharing the knowledge.
2021.07.08 in #520 PWC120 - Clock Angle
The highlight of Flavio's post is not limited to Perl but also Raku. You will find lots of magic from both world.
2021.07.09 in #520 App::Easer
App::Easer finally uploaded to CPAN.
2021.07.13 in #521 Finding Vim snippets in Bash
A little Bash program (with completions) to show Vim snippets.
2021.07.14 in #521 PWC121 - Invert Bit
Flavio seems to be enjoying Raku lot more than Perl these days. You have made good progress, good luck.
2021.07.15 in #521 PWC121 - The Travelling Salesman
Flavio is one of the few selected members who attempted to solve The Travelling Salesman task. His solution is well documented for anyone to read. Thanks.
2021.07.17 in #521 Web nostalgia: MojoX::Mechanize
Back when the web was simpler, the clients were dumb and Perl ruled as the server frontend, interfaces were IMHO more clearly defined and somehow standardized.
2021.07.18 in #521 More commenting... maybe?
My code might use some more commenting, maybe? - A reflection on The Weekly Challenge
2021.07.19 in #522 Brute forcing a puzzle
Flavio came up nice little puzzle and showed the fun behind the scenes. Nice puzzle, could be a nice easy task for the weekly challenge.
2021.07.20 in #522 A toy RSA implementation
Although it says toy, in my opinion it is a serious talk. Thanks Flavio for sharing it with us. You made it look so easy.
2021.07.21 in #522 PWC122 - Average of Stream
2021.07.22 in #522 PWC122 - Basketball Points
2021.07.24 in #522 Brute forcing "The monkey and the coconuts"
Flavio is in a puzzle mood this week. It is always pleasure to read his blog. Enjoy.
2021.07.25 in #522 More on monkeys and coconuts
More on the monkey and coconut puzzle. More fun and laughs.
2021.07.28 in #523 PWC123 - Ugly Numbers
You can never get bored of reading blog posts by Flavio. I most enjoyed the discussion of the task itself which was then followed up with code. Keep up the great work.
2021.07.29 in #523 PWC123 - Square Points
Flavio touched on a bit that I hadn't even thought of when I proposed the task. At times, I doubt my ability to analyze a task. I am learning every week from Flavio. Thanks for sharing.
2021.08.01 in #523 International Space Station passage
2021.08.03 in #524 Think Bayes
Well, in the blog, Flavio promoting a book, Think Bayes, that he is reading at the moment. Nice introduction, I must say. Bookmarking it for later reading.
2021.08.04 in #524 PWC124 - Happy Women Day
Flavio also took the task seriously and presented a really cool solution.
2021.08.05 in #524 PWC124 - Tug of War
Keeping up his tradition, Flavio, presents solutions in Perl and Raku. I loved the reasoning behind his approach.
2021.08.10 in #525 Trying Object::Pad
Newbies luck hitting a bug on the first try.
2021.08.11 in #525 PWC125 - Pythagorean Triples
Flavio's love for Raku shows in his daily blog posts. Nice read for someone new to Raku.
2021.08.12 in #525 PWC125 - Binary Tree Diameter
Flavio gave Perl the first preference and shared a well-documented solution. Keep up the great work.
2021.08.15 in #525 ClouDNS CLI
2021.08.16 in #526 App::Easer enhancement
Patched the inconsistency in how default-child and children behave.
2021.08.17 in #526 Template::Perlish enhancement
binmode option added and utf8 option is documented now.
2021.08.18 in #526 PWC126 - Count Numbers
The best part of this blog post is the performance matrix at the end showing two different approaches. Smart approach.
2021.08.19 in #526 PWC126 - Minesweeper Game
Well-documented solution to the Minesweeper Game task. Bonus you get a Raku version as well.
2021.08.24 in #527 Pod::Markdown and Pod::Markdown::Github for the win!
Convert POD documentation to Markdown with one (or two) command-line tools.
2021.08.25 in #527 PWC127 - Disjoint Sets
Flavio plays with Raku consistently and it shows in the quality of his contributions. Keep it up.
2021.08.26 in #527 PWC127 - Conflict Intervals
Great example to help you learn Raku. Cool translation of Perl code. Thanks for sharing.
2021.08.27 in #527 unit sub MAIN (...);
How to define command line options in Raku
2021.09.01 in #528 PWC128 - Maximum Sub-Matrix
Flavio once again shares bonus Raku magic along with Perl. You don't want to miss it.
2021.09.02 in #528 PWC128 - Minimum Platforms
Flavio went into the finer details of the Minimum Platforms task. I wonder at times, how did I miss the point.
2021.09.05 in #528 Today I Learned: Portable Grayscale Map
Flavio discusses something I have never touched before. Thanks for sharing.
2021.09.06 in #529 Advent of Code 2018, puzzle 6: get the job done!
2021.09.07 in #529 Fun with Advent of Code 2018
If you’re looking for some diversion or something to do some exercising (e.g. learning some Raku), Flavio suggests you giving Advent of Code a try.
2021.09.08 in #529 PWC129 - Root Distance
Flavio continued his fun with Raku, There are plenty to learn every week by just reading his blog. You don't want to miss the fun ride.
2021.09.09 in #529 PWC129 - Add Linked Lists
Flavio being very kind in his observation about the task. Thanks for sharing the knowledge with us every week.
2021.09.10 in #529 Crop an image with ImageMagick
ImageMagick is an amazing set of command-line tools for doing image manipulation.
2021.09.11 in #529 No voids, please
A small filtering program to rename files removing spaces and tabs.
2021.09.15 in #530 PWC130 - Odd Number
I love the fact that the Perl solution looks like Raku and not the other way. Nice attempt.
2021.09.15 in #531 PWC130 - Odd Number
Cool use of hashes to solve the task in both Perl and Raku. Keep it up great work.
2021.09.16 in #530 PWC130 - Binary Search Tree
For a change, we have the Perl solution first followed by Raku.
2021.09.16 in #531 PWC130 - Binary Search Tree
Flavio used a recursive function to solve the task. Implementation is really simple and easy to follow.
2021.09.21 in #531 perl-builder
2021.09.21 in #531 Wider List::Util
... and List::MoreUtils
2021.09.22 in #531 Term::QRCode
Term::QRCode generates QR Codes on the terminal.
2021.09.23 in #531 Terminal QR Code with Unicode characters
2021.09.28 in #532 Sub::Util
Flavio continued his research on import-related CPAN distributions.
2021.09.29 in #532 PWC132 - Mirror Dates
Flavio continued his fun with Raku and Perl showing the power of a Date library is each language. Keep it up.
2021.09.30 in #532 PWC132 - Hash Join
Flavio shared the complexity aspect of the Hash Join task. It is something I find very interesting. Thanks for sharing.
2021.10.01 in #532 XML::Twig
Work with XML files with ease as shown by Flavio in this blog post.
2021.10.02 in #532 A pull request for Path::Tiny
Flavio talking about an issue related to Path::Tiny and his workaround.
2021.10.04 in #533 Hacktoberfest 2021
Waiting with pull-requests till October arrives.
2021.10.05 in #533 Configuration for tmux
2021.10.06 in #533 PWC133 - Integer Square Root
Flavio solved the Integer Square Root task with the help of a bit operation to make it compact. Keep it up great work.
2021.10.07 in #533 PWC133 - Smith Numbers
Flavio's solution to the Smith Number task is also very simple and easy to follow. Thanks for sharing the knowledge.
2021.10.08 in #533 Email::Stuffer
2021.10.09 in #533 Image::ExifTool
2021.10.10 in #533 Git Forest
2021.10.11 in #534 Resuming Data::Tubes
Great example of a CPAN distribution and how it can be useful to solve a day-to-day task.
2021.10.13 in #534 PWC134 - Pandigital Numbers
Flavio's smooth handling of Perl and Raku makes his blog fun to read. Thanks for the contributions.
2021.10.14 in #534 PWC134 - Distinct Terms Count
Not sure about others, but I enjoyed the reading Raku solution. Keep sharing the knowledge.
2021.10.18 in #535 Looking at Beancount
After doubting about Accounting::Kitty, I had to look more in depth into the alternatives. Inside the Ledger and co. heap I chose Beancount, which is supposed to be stricter in doing checks.
2021.10.19 in #535 Beancount for Kitty, simple model
After laying down the needs in looking at Beancount, I went for a direct mapping of the different accounts, setting most of them as Assets and the External one as an Equity.
2021.10.20 in #535 PWC135 - Middle 3-digits
This is an ideal for Perl programmers to learn Raku. You get to compare the two next to each other. Easy to follow style. Thank you for your contributions.
2021.10.21 in #535 PWC135 - Validate SEDOL
Yet another cool solution in both Perl and Raku. Not too difficult to read Raku code even for Perl developer. Thanks for sharing.
2021.10.22 in #535 Graphics::Potrace
It seems that about 9 years ago I started working on Graphics::Potrace
2021.10.27 in #536 PWC136 - Two Friendly
Flavio's compact solutions are very impressive. He has done it in both Perl and Raku. Thank you.
2021.10.28 in #536 PWC136 - Fibonacci Sequence
Flavio presented a handful of choices to pick from. You pick your favourite. Thank you Flavio.
2021.11.01 in #537 Reinventing Netcat in Perl
2021.11.02 in #537 Proxy setup for Netcat in Perl
2021.11.03 in #537 PWC137 - Long Year
I enjoyed the Raku solution more than the Perl one. It is so obviously written by a Perl developer. Great piece of work as always.
2021.11.04 in #537 PWC137 - Lychrel Number
The discussion made reading the code so easy that anyone can follow it. Thanks for sharing your knowledge with us.
2021.11.05 in #537 AnyEvent for Netcat?
2021.11.06 in #537 Cross-posting considered harmful?
2021.11.08 in #538 Perl OpenAPI with Mojolicious
Find out the power of OpenAPI.
2021.11.09 in #538 DBD::Oracle
Installing DBD::Oracle in Perl
2021.11.10 in #538 PWC138 - Workdays
Flavio using a 'subset' of Raku is nice and clean. Nice mathematical hack to get the end result. You are a great storyteller too. Thanks for entertaining us every week.
2021.11.11 in #538 PWC138 - Split Number
A very interesting approach to the 'Split Number' task. I had to read the text twice to understand the flow. I loved the logic - something to keep in mind.
2021.11.13 in #538 Perl LDAP
Cool mix of LDAP and Perl.
2021.11.16 in #539 LDAP program: eldap
2021.11.16 in #539 encode_json does encoding
2021.11.17 in #539 PWC139 - JortSort
Nice and easy solutions in Perl and Raku to deal with the JortSort task. Raku seems to be the winner this week.
2021.11.18 in #539 PWC139 - Long Primes
I liked the Raku solution more than the Perl one. Raku rocks. Keep up the great work.
2021.11.19 in #539 Remove objects from an array with jq
2021.11.21 in #539 Perl OpenAPI with Mojolicious - an update!
2021.11.22 in #540 Trying Kerberos
2021.11.23 in #540 A bare-bones kinit in Perl
Implementing a very basic kinit functionality using Authen::Krb5 in Perl.
2021.11.24 in #540 PWC140 - Add Binary
Nice attempt to show the operator overloading feature of Raku with the help of the task. Well done.
2021.11.25 in #540 PWC140 - Multiplication Table
I like how Flavio always pushes the limit higher up and then deals with it. I am pleasantly surprised to see the end result. Great work, keep it up.
2021.11.26 in #540 Perl GSSAPI options
Passing options to Perl's GSSAPI module is a bit clunky but doable.
2021.11.27 in #540 Example LDAP with on-the-fly Kerberos authentication
An example of how to do Kerberos authentication in memory, i.e. without needing to use [kinit][] beforehand or to save anything on the disk.
2021.11.30 in #541 Feature creep in App::Easer
2021.12.01 in #541 PWC141 - Number Divisors
Thank you Flavio for educating us with your task analysis. I find it very useful. Thanks for your continuous support.
2021.12.02 in #541 PWC141 - Like Numbers
I enjoy reading the Question section. It raises an interesting point that I miss most of the time. Thanks for being soft and kind in your response. I loved how you approach the task. Keep it up; great work.
2021.12.03 in #541 Advent of Code 2021 is onto us!
2021.12.04 in #541 A (possible) bug in RRDTool
2021.12.08 in #542 PWC142 - Divisor Last Digit
Loved the Raku solution with all the type constraints. Raku Rocks.
2021.12.09 in #542 PWC142 - Sleep Sort
Thanks for introducing Raku's Promise feature. Nice example to learn new tricks in Raku. Thanks for sharing.
2021.12.13 in #543 AoC 2021/09 - Flood fill
The Advent of Code puzzle 9 from 2021: using the flood fill algorithm.
2021.12.14 in #543 AoC 2021/10 - Syntax scoring
Playing with parentheses.
2021.12.15 in #543 PWC143 - Calculator
Another cool example of Raku Grammars. Well organised blog, worth keeping it bookmarked. Thanks for sharing.
2021.12.16 in #543 PWC143 - Stealthy Number
Looking at the quality Raku solutions, I feel like start contributing in Raku again. Thanks for the motivation.
2021.12.17 in #543 AoC 2021/11 - Calm Dumbo Octopuses
On with Advent of Code puzzle 11 from 2021: taking it with calmness.
2021.12.18 in #543 AoC 2021/12 - A trip in the caves
2021.12.20 in #544 AoC 2021/13 - Transparent origami
On with Advent of Code puzzle 13 from 2021: folding transparent paper, origami style.
2021.12.21 in #544 AoC 2021/14 - Exponential polymerization
On with Advent of Code puzzle 14 from 2021: taming exponential growth in the evolution mechanism.
2021.12.22 in #544 PWC144 - Semiprime
Flavio has been kind and shared multiple approaches to solve the task. Hard to pick one; thanks for sharing.
2021.12.23 in #544 PWC144 - Ulam Sequence
The questions section of this blog post brought a big smile to my face. I didn't plan it, honestly. Raku solution is my favourite this week.
2021.12.24 in #544 AoC 2021/15 - A* in the sea
On with Advent of Code puzzle 15 from 2021: using A*.
2021.12.26 in #544 AoC 2021/16 - Bitstream decoding
On with Advent of Code puzzle 16 from 2021: good old bit stream decoding
2021.12.27 in #545 AoC 2021/17 - Ballistic
This day's puzzle is about throwing stuff around. It involves some physics models.
2021.12.28 in #545 AoC 2021/18 - Fishy accordion
Something about balancing binary trees.
2021.12.29 in #541 Tutorials for modules
Some thoughts about writing tutorials for Perl modules.
2021.12.29 in #545 PWC145 - Dot Product
Flavio gave us a flavour of Raku classes in this blog post. You should check it out if you want to know more.
2021.12.30 in #545 AoC 2021/19 - GPS is smarter
2021.12.30 in #545 PWC145 - Palindromic Tree
I am glad Flavio didn't have any questions about the Palindromic Tree task. Also we got real graphs using Raku. Thanks for sharing with us.
2022.01.01 in #545 Happy 2022! And a reflection
Why and how can Flavio write so many blog posts? How could you also do it?
2022.01.02 in #545 AoC 2021/19 - GPS is smarter - part 2
2022.01.05 in #546 PWC146 - 10001st Prime Number
Flavio continued showing the power of his Raku skills with a compact solution. Great work, keep it up.
2022.01.06 in #546 PWC146 - Curious Fraction Tree
Flavio is very clever; sharing the finer details. The best solution IMHO so far. Thank you.
2022.01.10 in #547 AoC 2021/23 - Then came amphipods...
Advent has been over for almost 3 weeks now, but Flavio just continues, and continues. We can only envy his persistence. (We could also follow it, but that's much harder.)
2022.01.11 in #547 AoC 2021/24 - Blockchain under the sea
The fun of processing some assembly code in Perl
2022.01.12 in #547 PWC147 - Truncatable Prime
These days, Flavio's blog is mostly filled with Raku knowledge. Nice promotion of the language. Keep it up.
2022.01.13 in #547 PWC147 - Pentagon Numbers
Thank you Flavio for sharing the maths behind the Pentagon Numbers task. It makes it easy to follow the code.
2022.01.14 in #547 AoC 2021/25 - Sea traffic jam
Wow, it seems we arrived at the end of the Advent of Code. I am not worried, but OMG, what will Flavio write about now?
2022.01.15 in #547 AoC 2021/01 - Up and down
Oh, I thought the AoC is over. But no, this is a Raku solution.
2022.01.16 in #547 AoC 2021/02 - Ready, set, go!
Another Raku solution
2022.01.18 in #548 Data::Tubes release and... how cool is CPAN Testers?!?
Find out more about the recent release of Data::Tubes by Flavio.
2022.01.19 in #548 PWC148 - Eban Numbers
Flavio shared two flavours this week, and they were both in Perl and Raku. Keep it up; great work.
2022.01.20 in #548 PWC148 - Cardano Triplets
Flavio's lazy solution to the Cardano Triplets task is very cool. Thanks for your contributions, as always.
2022.01.22 in #548 Paste around
Ever wanted to share code, then this is your friend.
2022.01.23 in #548 App::Easer guides
Thanks to Flavio for sharing tutorials on App::Easer.
2022.01.24 in #549 Ticket to Write
2022.01.25 in #549 Ticket to Write - chart
2022.01.26 in #549 PWC149 - Fibonacci Digit Sum
Flavio has more Raku features and is sharing the power of the language. Keep it up; great work.
2022.01.27 in #549 PWC149 - Largest Square
Flavio presented two different approaches to solving the largest square task. Highly recommended.
2022.01.28 in #549 /dev/full
For most people I know their disk is always full, but if you are not one of those then this advice about the /dev/full device from Su-Shee via Flavio can help.
2022.01.29 in #549 Ticket to Write - playable!
2022.01.30 in #549 LDAP filter to search for absence of an attribute
2022.02.01 in #550 ProtoWebz
A very short and sweet introduction to ProtoWebz
2022.02.02 in #550 PWC150 - Fibonacci Words
I love Raku classes. Lots of Raku magic presented in the blog post. Thanks for sharing.
2022.02.03 in #550 PWC150 - Square-free Integer
Once again lots of pretty Raku code, easy to follow. Cool promotion of the language. Thank you.
2022.02.06 in #550 Augmenting Exporter
Flavio shared the widely-discussed topic 'import' and how he visualises the feature.
2022.02.07 in #551 Role-like augmentation
One way to add methods in a class, similar to how roles would work.
2022.02.08 in #551 So pleased to use Perl
It is easy to make Flavio happy. You just need give him a -r flag.
2022.02.09 in #551 PWC151 - Binary Tree Depth
The question section is the highlight for me every week. This is where I get to know the gaps in the task description. The solution itself is a masterpiece. Highly Recommended.
2022.02.10 in #551 PWC151 - Rob The House
I found the Raku solution more compact than the Perl solution, although they are identical in nature. Keep it up great work.
2022.02.12 in #551 Active Directory time thing
Converting from and to the Active Directory way of representing time.
2022.02.13 in #551 App::Easer V2 - let's start!
2022.02.16 in #552 PWC152 - Triangle Sum Path
Flavio show off his Raku skill with one liner, I am impressed. Thanks for sharing.
2022.02.17 in #552 PWC152 - Rectangle Area
Lots of calculation with the power of Raku is the right mix. Keep it up great work.
2022.02.18 in #552 Ticket to Write - thoughts
Only Flavio can do it, he has shown it time and again. I love his story telling quality.
2022.02.19 in #552 Gitolite
Nice introduction to Gitolite. I must confess, I didn't knew about it before. Thanks for sharing.
2022.02.22 in #553 Gitolite image - Helm chart
2022.02.23 in #553 PWC153 - Left Factorials
Checking out Flavio blog always brought smile with his approach. Found more Raku magic than Perl, well done.
2022.02.24 in #553 PWC153 - Factorions
Cool hack shared in the blog to solve the task. Thanks for sharing the knowledge.
2022.02.28 in #553 GeoIP database from MaxMind
2022.02.28 in #554 GeoIP database from MaxMind
Cool use of IP::Geolocation::MMDB and a free database from MaxMind to create magic.
2022.03.01 in #554 Fail2ban2geo
Short demo of Fail2ban2geo tool.
2022.03.02 in #554 PWC154 - Missing Permutation
The best part is a home-grown solution for permutation in Perl. Cool attempt. Keep it up great work.
2022.03.03 in #554 PWC154 - Padovan Prime
I liked the order of solution, Perl first then Raku. It gives better comparison how Raku behaves. Thank you for your effort.
2022.03.05 in #554 App::Easer - tree auto-command
Introduction of tree sub-command to the automatically available ones.
2022.03.07 in #555 App::Easer and Moo
2022.03.08 in #555 App::Easer - more tests for V2
2022.03.09 in #555 PWC155 - Fortunate Numbers
Flavio's blog seems to be more Raku-centric than Perl, and I am not complaining. In fact, I enjoy it thoroughly.
2022.03.10 in #555 PWC155 - Pisano Period
The detailed analysis of the task makes it easy to follow the code. Keep it up, great work.
2022.03.12 in #555 The Monty Hall problem
2022.03.16 in #556 PWC156 - Pernicious Numbers
I liked how easily Flavio used the bit operator. It did make the end result sleek. Thanks for sharing the knowledge.
2022.03.17 in #556 PWC156 - Weird Number
Kudos to Flavio for the poetry in the middle of the blog. Keep surprising us every week.
2022.03.20 in #556 Log::Log4perl::Tiny
It is aimed to fix issue and allow intermix text parts in the messages to log with sub references.
2022.03.21 in #557 Tricked by __PACKAGE__
__PACKAGE__ (and __LINE__ and __FILE__) cannot be treated like a sub in versions of Perl prior to 5.16.
2022.03.22 in #557 Local to remote port forwarding with socat
You may wish to view a site that is only accessible within a VM on the host machine. In this post, Flavio demonstrates how to use socat to listen on a local port and send the traffic to a remote host/port.
2022.03.23 in #557 PWC157 - Pythagorean Means
I loved the re-use of arithmetic mean in the calculation of harmonic mean - you must check it out!
2022.03.24 in #557 PWC157 - Brazilian Number
The generalization of determining Brazilian Numbers from an initial brute-force approach is really cool. Worth checking out!
2022.03.25 in #557 Corkscrew in Perl
Corkscrew is a tool to set up SSH connectivity through a web proxy that supports the CONNECT verb.
2022.03.26 in #557 OpenAPI with Mojolicious - using name for default_response
Mojolicious::Plugin::OpenAPI author Jan Henning Thorsen provides Flavio with a handy short-circuit trick to avoid loading an API specification twice.
2022.03.27 in #557 Minion
Minion is a high-performance job queue for Perl that integrates with Mojolicious applications and leading databases.
2022.03.29 in #558 PWC158 - Additive Primes
Don't you like 'The questions' section? I liked it personally. Raku one-liners are really cool. Thanks for sharing your knowledge with us!
2022.03.30 in #558 PWC158 - First Series Cuban Primes
Flavio has been sharing Perl and Raku magic every week. Thank you for being so supportive of the Weekly Challenge!
2022.04.01 in #558 Split a PDF into individual pages
Using PDF::API2 to split a PDF into separate pages.
2022.04.02 in #558 Email::Stuffer
A quick introduction to sending email with Email::Stuffer.
2022.04.05 in #559 PWC159 - Farey Sequence
Use of method signature in Perl solution makes it very similar to Raku. It would be nice to see it become part of core Perl. Thanks for sharing.
2022.04.06 in #559 PWC159 - Moebius Number
Raku method name with Unicode character. Really cool, never seen before. Thanks for sharing the knowledge.
2022.04.10 in #559 Using ongoing developed libraries
2022.04.12 in #560 PWC160 - Four Is Magic
I noticed something new in this Raku solution '.tclc', which I'd never seen before. Keep it up!
2022.04.13 in #560 PWC160 - Equilibrium Index
I liked the compact solution in Raku, taking full advantage of the language. Very smart. Thank you!
2022.04.15 in #560 Echoes from the past: LavaRnd
Flavio delves into his past and remembers random number generation using LavaRnd.
2022.04.16 in #560 Imager::QRCode
A short and sweet introduction to Imager::QRCode.
2022.04.17 in #560 PerlMagick PDF pages
Flavio picked up the most complicated topic this week: PerlMagick and PDF. Very happy to see the solution in the end!
2022.04.18 in #561 QRate
Flavio is working on QRate, a tool to backup stuff as QR codes in a PDF that can be printed.
2022.04.19 in #561 PWC161 - Abecedarian Words
No question as far as the task 'Abecedarian Words' is concerned. Mission accomplished. Enjoy Perl and Raku solutions. Thanks for sharing.
2022.04.20 in #561 PWC161 - Pangrams
Not so luck for the task 'Pangrams'. Better luck next time, Ryan Thompson. A very thorough solution in Perl, I must admit. Keep it up great work.
2022.04.21 in #561 QRate - High Level Design (provisional)
2022.04.22 in #561 QRate - encoding
2022.04.23 in #561 QRate - iterators for encoding
2022.04.24 in #561 QRate - decoding
2022.04.25 in #562 QRate - complete program
finally we got the complete program. I would recommend you checkout earlier post first.
2022.04.26 in #562 PWC162 - ISBN-13
Compact solution in Perl and Raku, loved the hack. Thanks for sharing.
2022.04.27 in #562 PWC162 - Wheatstone-Playfair
Comparison of Perl and Raku solution is fun. Plenty to learn from. Thank you.
2022.04.28 in #562 App::Easer options collection
Please checkout how to collect options using App:Easier.
2022.04.29 in #562 App::Easer help as (command line) option
Please find out various ways to get the full text for hep
2022.05.02 in #563 Random thought about "a year" (or two)
2022.05.03 in #563 PWC163 - Sum Bitwise Operator
Comparison of multi sub of Raku and counterpart in Perl. Fun analysis. Thanks for sharing the knowledge.
2022.05.05 in #563 August 1970
It was funny to see these two posts - the random thoughts about the 'year' and about the specific year of 1970 - together.
2022.05.05 in #563 PWC163 - Summations
The headline has typo, rare event. Just loved the compact solution in Perl. Keep it up great work.
2022.05.06 in #563 App::Easer - moving ahead with tests
App::Easer was created to simplify writing (hierarchical) CLI applications
2022.05.07 in #563 Read YAML front-matter with teepee
The power of being able to add your own flags to an open source project.
2022.05.08 in #563 Getopt::Long long options are case-insensitive
In other words: test the command line options with incorrect values as well!
2022.05.10 in #564 PWC164 - Prime Palindrome
Cool one-liner in Perl using home grown subroutines makes it attractive. Well done. Thanks for sharing.
2022.05.11 in #564 PWC164 - Happy Numbers
Flavio showing off Raku power using Unicode operator. Keep it up great work.
2022.05.12 in #564 Getopt::Long long options can be case-sensitive
It is something that I didn't know before. How can I miss it? Thank you for keeping the daily blog alive.
2022.05.16 in #565 ActiveDirectory password encoding in Perl and shell
2022.05.17 in #565 PWC165 - Scalable Vector Graphics (SVG)
Nice representation of SVG in Raku makes it look simple and easy to follow. Beauty, thanks.
2022.05.18 in #565 PWC165 - Line of Best Fit
Too much maths involved but the end result looks not that bad. Nice work, keep it up.
2022.05.20 in #565 Adding functions in Template::Perlish
'As any average Perl hacker, ...' Flavio opens his post. On the second reading I understood that he means that many Perl hackers do it, but first I thought he think of himself as being average. If that was the case, Perl would not be declining and we would have so many articles for the Perl weekly that we would not be able to include even 10% of them. Anyway, who does not want to maintain a templating system?
2022.05.21 in #565 Curses::UI and signatures
2022.05.22 in #565 Curses::UI callbacks
2022.05.23 in #566 Perl's pos
Interesting subject discussed in the post about how pos() influence regex match.
2022.05.24 in #566 PWC166 - Hexadecimal Words
Making good use of Raku power dealing with I/O and finally getting a compact solution. Keep it up great work.
2022.05.25 in #566 PWC166 - K-Directory Diff
I loved the fact Falvio making use of method signatures is really cool. I encourage everyone to follow up. Great work as always.
2022.05.29 in #566 Perl v5.36 is out
Flavio's take on features introduced in Perl v5.36.
2022.05.31 in #567 PWC167 - Circular Prime
Flavio is holding the Raku flag very tight. For Perl, the good old friend CPAN came handy. Thanks for sharing the knowledge.
2022.06.01 in #567 PWC167 - Gamma Function
Flavio is one of few, who attempted the Gamma function task. Raku and Perl solutions look very identical. Keep it up great work.
2022.06.02 in #567 Caching with CHI
2022.06.03 in #567 Short flight over Tickit
Tickit is Terminal Interface Construction KIT by Paul Evans. A few notes by Flavio.
2022.06.05 in #567 Curses::UI data viewer
An example application with Curses::UI
2022.06.07 in #568 Curses::UI data viewer becomes dew
Structure data viewer got new home. Nice demo of Perl power.
2022.06.08 in #568 PWC168 - Perrin Prime
Flavio mostly blog about Perl but for weekly challenge he makes sure to contribute in Raku as well. Keep it up great work.
2022.06.09 in #568 PWC168 - Home Prime
I love 'The questions' section more than the solution itself to be honest. I know, too many prime number related tasks, being served in recent weeks. Thank you for support and contribution.
2022.06.13 in #569 A long due interface change in skfold
Apparently this is the 900th post by Flavio. Congratulations!
2022.06.14 in #569 Adopting Shame Driven Development for App::Easer
2022.06.15 in #569 PWC169 - Brilliant Numbers
Lucky to have Perl and Raku solutions as always every week. It is nice refresher for me personally. Keep it up great work.
2022.06.16 in #569 PWC169 - Achilles Numbers
Structured and organised solution in Raku. It makes so easy to follow. Well done and keep sharing.
2022.06.17 in #569 The Foo::Bar mystery in Strawberry Perl
2022.06.18 in #569 A builtin::readonly?
Wondering whether builtin::readonly will ever appear.
2022.06.19 in #569 App::Easer V2 is out... and can be improved!
2022.06.22 in #570 PWC170 - Primorial Numbers
Just loved how Flavio get the end result building block by block. Elegant looking solution at the end. Well done.
2022.06.23 in #570 PWC170 - Kronecker Product
Good use of CPAN module, Math::Matrix. Nice example showing the clean interface. Keep it up great work.
2022.06.24 in #570 A skfold module for Mojolicious applications
Cool introduction to skfold for all Mojolicious fan. Thank you Flavio.
2022.06.28 in #571 OATH Toolkit
Flavio discovered that there are a couple of CPAN modules to help with OATH stuff... like App::OATH and Authen::OATH, which are worth investigating.
2022.06.29 in #571 PWC171 - Abundant Number
If you are new to Raku then I would highly recommend this post. Keep it up great work.
2022.06.30 in #567 Rendering trees in the terminal
The tree command in Linux would show a directory structure as a tree, but what if you have some in-memory tree-like data-structure? How can you visualize that?
2022.06.30 in #571 PWC171 - First-class Function
Short and sweet solutions in both Perl and Raku. Thank you for sharing the knowledge.
2022.07.01 in #571 Reverse printing the QR Code in the terminal
2022.07.03 in #571 Private git repos (some thoughts)
2022.07.05 in #572 Codeberg
Nice and easy tutorial on Git hosting service Codeberg.
2022.07.06 in #572 PWC172 - Prime Partition
I was spared in the Question section. Breakdown of task is interesting. Keep it up great work.
2022.07.07 in #572 PWC172 - Five-number Summary
Raku version seems more fun than Perl one. You don't want to miss it.
2022.07.08 in #572 Codeberg - signing up
Flavio sharing his signup process to Codeberg.
2022.07.09 in #572 Codeberg Pagesp
If you are GitHub page fan then you are going to love this. I would definitely have a closer look.
2022.07.10 in #572 Cryptopals
For all crypto fans, this should be a good read.
2022.07.12 in #573 ETOOBUSY on Codeberg
You know, you can create a static blog on GitHub pages or Codeberg and you hardly need to do anything. And it is fun.
2022.07.13 in #573 PWC173 - Esthetic Number
Elegant mix of Perl and Raku like always, you don't want to skip it. Highly recommended.
2022.07.14 in #573 PWC173 - Sylvester's Sequence
Interesting use of Raku class. Always fun reading the blog. Keep it up great work.
2022.07.16 in #573 App::Easer validations
Why did I think that this is about Easter? Anyway, Falvio thought that he could get away with sloppyness, but could not. You see that's the problem with open source :-)
2022.07.18 in #573 Codeberg Pages - Custom domains
2022.07.19 in #574 Cryptopals 1 - Convert hex to base64
Nice use of pack and unpack for cryptopaks. Thanks for sharing the knowledge.
2022.07.21 in #574 PWC174 - Disarium Numbers
The caching and parallelisation are key factors when dealing with such tasks. Thanks for sharing.
2022.07.22 in #574 PWC174 - Permutation Ranking
Translation of Python to Perl, not a bad chocce. Good decision. Keep it up great work.
2022.07.24 in #574 Cryptopals 2 - Fixed XOR
Clever hack using Perl latest feature, always fun. Keep it up great work.
2022.07.25 in #575 Cryptopals 3 - Single-byte XOR cipher
2022.07.26 in #575 Cryptopals 4 - Detect single-character XOR
2022.07.27 in #575 PWC175 - Last Sunday
Raku version gets my vote this time. I simply loved it. Thank you for everything.
2022.07.28 in #575 PWC175 - Perfect Totient Numbers
For this task, Flavio went a bit more and shared his creative mind. Well done.
2022.07.29 in #575 Cryptopals 5 - Implementing repeated-key XOR
2022.07.30 in #575 Cryptopals 6 - Break repeated-key XOR
2022.07.31 in #575 AES is doable
AES is Advanced Encryption Standard
2022.08.01 in #576 AES - SubBytes
2022.08.02 in #576 AES - ShiftRows
2022.08.03 in #576 PWC176 - Permuted Multiples
Nice comparative solutions in Perl and Raku. Plenty to learn, thanks for sharing.
2022.08.04 in #576 PWC176 - Reversible Numbers
Use of fun mathematical formula is very clever. Keep it up great work.
2022.08.05 in #576 AES - multiplications in GF(256)
2022.08.06 in #576 AES - MixColumns
2022.08.07 in #576 AES - Key stuff
2022.08.08 in #577 AES - Cipher
At this point, we have all the moving parts we need to assemble the Cipher function, let's go!
2022.08.09 in #577 AES - Higher level functions
Our implementation now has a useable way to encrypt and decrypt stuff according to the AES standard, although it’s not very straightforward. We can do better from a useability point of view.
2022.08.10 in #577 PWC177 - Damm Algorithm
I noticed the blog post is more about Raku solution than the Perl. Anyway I enjoy it. Thanks for sharing.
2022.08.11 in #577 PWC177 - Palindromic Prime Cyclops
Blog post style is like 2-way communications. You never get bored reading. Great work.
2022.08.12 in #577 Cryptopals 7 - AES in ECB mode
After a little detour to build our own AES toy implementation, we're finally ready for addressing Challenge 7.
2022.08.13 in #577 Cryptopals 8 - Detect AES in ECB mode
This challenge is about sifting through a bunch of lines in a provided file and see which represents something encrypted with AES-ECB. There is, apparently, exactly one such line.
2022.08.14 in #577 Cryptopals 9 - Implement PKCS#7 padding
2022.08.15 in #578 Cryptopals 10 - Implement CBC mode
Cipher Block Chaining (CBC) implementation in easy to follow blog post.
2022.08.16 in #578 Cryptopals 11 - An ECB/CBC detection oracle
Code oracle machine when dealing with ECB/CBC.
2022.08.17 in #578 PWC178 - Quater-imaginary Base
Interesting use of regex for parsing, makes it fun. Thanks for sharing the knowledge.
2022.08.18 in #578 PWC178 - Business Date
Using the power of Raku DateTime made the solution compact and easy to follow. Well done.
2022.08.19 in #578 Cryptopals 12 - Byte-at-a-time ECB decryption (Simple)
ECB decryption in action for all.
2022.08.20 in #578 Cryptopals 13 - ECB cut-and-paste
2022.08.21 in #578 Cryptopals 14 - Byte-at-a-time ECB decryption (Harder)
2022.08.22 in #579 Cryptopals 15 - PKCS#7 padding violation
2022.08.23 in #579 Cryptopals 16 - CBC bitflipping attacks
2022.08.24 in #579 PWC179 - Ordinal Number Spelling
Building up Raku solution ground up is worth checking. Great attempt. Keep it up cool work.
2022.08.25 in #579 PWC179 - Unicode Sparkline
Smart sparkline solutions in Perl and Raku. So easy to follow, well done. Thanks for sharing.
2022.08.26 in #579 Cryptopals 17 - The CBC padding oracle
As they say ... "This is the best-known attack on modern block-cipher cryptography."
2022.08.27 in #579 Cryptopals Diversion 1 - A counter
2022.08.28 in #579 Cryptopals 18 - Implement CTR, the stream cipher mode
2022.08.29 in #579 Cryptopals 19 - Break fixed-nonce CTR mode using substitutions (part 1)
2022.08.29 in #580 Cryptopals 19 - Break fixed-nonce CTR mode using substitutions (part 1)
2022.08.30 in #580 Cryptopals 19 - Break fixed-nonce CTR mode using substitutions (part 2)
2022.08.31 in #580 Cryptopals 19 - Break fixed-nonce CTR mode using substitutions (part 3)
2022.09.01 in #580 PWC180 - First Unique Character
Double Linked List? Yes, you read it correct. For more information you must checkout his coolest blog.
2022.09.02 in #580 PWC180 - Trim List
Cool definition of sub trim() in Perl. Very impressed with the Perl solution. Thanks for sharing.
2022.09.03 in #580 Cryptopals 20 - Break fixed-nonce CTR statistically
2022.09.04 in #580 Cryptopals 21 - Implement the MT19937 Mersenne Twister RNG
2022.09.05 in #581 Cryptopals 22 - Crack an MT19937 seed
2022.09.06 in #581 Cryptopals 23 - Clone an MT19937 RNG from its output
2022.09.07 in #581 Cryptopals 24 - Create the MT19937 stream cipher and break it
2022.09.08 in #581 PWC181 - Sentence Order
Raku method chaining in action. I just love it. Thanks for sharing.
2022.09.09 in #581 PWC181 - Hot Day
Clever use of split, map, sort and grep. Very brave attempt. Keep it up great work.
2022.09.10 in #581 Cryptopals 25 - Break "random access read/write" AES CTR
2022.09.11 in #581 Cryptopals 26 - CTR bitflipping
2022.09.12 in #582 Cryptopals 27 - Recover the key from CBC with IV=Key
2022.09.13 in #582 Cryptopals 28 - Implement a SHA-1 keyed MAC
2022.09.14 in #582 Cryptopals 29 - Break a SHA-1 keyed MAC using length extension
2022.09.15 in #582 PWC182 - Max Index
Descriptive solutions in Perl and Raku with a touch of sweet history. Well done.
2022.09.16 in #582 PWC182 - Common Path
Use of CPAN module for Perl solution makes it compact. For Raku, everything is part of the core language. Thanks for sharing.
2022.09.17 in #582 Cryptopals 30 - Break an MD4 keyed MAC using length extension
2022.09.18 in #582 Cryptopals Diversion 2 - Simulating Time Leaks
2022.09.19 in #583 Cryptopals 31 - Implement and break HMAC-SHA1 with an artificial timing leak
2022.09.20 in #583 Cryptopals 32 - Break HMAC-SHA1 with a slightly less artificial timing leak
2022.09.21 in #583 ETOOBUSY turns 1000
Congratulations!
2022.09.22 in #583 PWC183 - Unique Array
Special use of JSON::PP is really new to me. Thanks for sharing the knowledge.
2022.09.23 in #583 PWC183 - Date Difference
Thanks for doing it for me. I will try to keep you engage in future. Keep it up great work.
2022.09.24 in #583 Cryptopals 33 - Implement Diffie-Hellman
2022.09.25 in #583 Cryptopals 34 - Implement a MITM key-fixing attack on Diffie-Hellman...
2022.09.26 in #584 Cryptopals 35 - Implement DH with negotiated groups...
2022.09.27 in #584 Cryptopals 36 - Implement Secure Remote Password (SRP)
2022.09.28 in #584 Cryptopals Diversion 3 - SRP server and client
2022.09.29 in #584 PWC184 - Sequence Number
Nice catch of exception use case. Thanks for the detailed analysis in Perl and Raku.
2022.09.30 in #584 PWC184 - Split Array
Glad, the example clears the doubt. To the point discussion, highly recommended.
2022.10.01 in #584 Cryptopals 37 - Break SRP with a zero key
2022.10.02 in #584 Cryptopals 38 - Offline dictionary attack on simplified SRP
2022.10.03 in #585 Hacktoberfest 2022
Flavio does not seem to be impressed. I like the concept of Hacktoberfest, but in recent years it seems the useless PRs have gotten out of hand and the whole project is less fun.
2022.10.04 in #585 Cryptopals 39 - Implement RSA
2022.10.05 in #585 Cryptopals 40 - Implement an E=3 RSA Broadcast attack
2022.10.06 in #585 PWC185 - MAC Address
One-liner subroutine in Perl and Raku, very impressive. Thank you.
2022.10.07 in #585 PWC185 - Mask Code
I can't ignore the questions section. It raises some interesting questions. Thanks for sharing cool solutions.
2022.10.08 in #585 Newlines
2022.10.10 in #586 Passphrases
After a long time, I found the subject is explained in detail. All your questions answered in this blog post.
2022.10.11 in #586 Diceware
Another ineresting topic discussed. I really enjoyed it. Lots of informations to process.
2022.10.12 in #586 On the review for The Weekly Challenge 179...
Flavio response to the review of weekly challenge 179 by Colin Crain. Interesting points raised and discussed.
2022.10.13 in #586 PWC186 - Zip List
Nice twist and turn. In the end we get a cool solution. Keep it up great work.
2022.10.14 in #586 PWC186 - Unicode Makeover
Cool use of CPAN module to get the job done in Perl but for Raku, it is pure magic. Thanks for your contributions.
2022.10.17 in #587 Expanding words in NVdB
2022.10.18 in #587 Expanding verbs in NVdB
2022.10.19 in #587 Expanding nouns and adjectives in NVdB
2022.10.20 in #587 PWC187 - Days Together
Great show of Perl and Raku solutions side by side. Much better to learn the new tricks. Keep it up great work.
2022.10.21 in #587 PWC187 - Magical Triplets
Breaking down of the task into smaller actions makes it easy to follow. Excellent work, thanks for sharing.
2022.10.22 in #587 Grouping in NVdB
2022.10.23 in #587 Compactification in NVdB
2022.10.24 in #588 Pass4me
Interesting discusion to engage with. I thoroughly enjoyed it.
2022.10.25 in #588 Cryptopals 38 - New insights from a kind reader
2022.10.26 in #588 Light Git repository checkout
A very handy tutorial for those dealing with large git repository. Highly Recommended.
2022.10.27 in #588 PWC188 - Divisible Pairs
Nice attempt to bring the maths behind the task. Loved it. Thanks for sharing.
2022.10.28 in #588 PWC188 - Total Zero
I love the story telling style of blogging, it makes the blog fun to read. Great work, keep it up.
2022.10.29 in #588 Certificates expiration
Have you ever dealt with certificate? If yes then you must read this post.
2022.10.30 in #588 Blaming past self
Fun post and it is the story of every developer in my opinion. I found a subtle bug in one of my own CPAN module after 10 years. I don't want to name and shame it, though.
2022.10.31 in #589 Software Tools for Hobby-Scale Projects
2022.11.02 in #589 A possible SYNOPSIS for a MyJSONs module
2022.11.03 in #589 PWC189 - Greater Character
Near identical solutions in Perl and Raku, anyone can easily follow it. Thanks for sharing,
2022.11.04 in #589 PWC189 - Array Degree
Interesting points raised and discussed, you don't want to miss it. Thanks for your contributions.
2022.11.05 in #589 WebService::MyJSONs
2022.11.06 in #589 A PDF void
2022.11.07 in #590 A PDF workaround
Nice little introduction to PDF::Builder, worth checking it out.
2022.11.09 in #590 pdfunnel
pdfunnel, A poor man's PDF manipulator by Flavio.
2022.11.10 in #590 PWC190 - Capital Detection
Great show of regex in Perl and Raku to get the job done. Keep it up great work.
2022.11.11 in #590 PWC190 - Decoded List
Don't you love the questions section. I will try to do better next time.
2022.11.14 in #591 Template::Perlish: added functions injection
2022.11.15 in #591 Lured by overengineering
Working on a little website for helping people getting started and up to speed in using The GNU Privacy Guard.
2022.11.17 in #591 PWC191 - Twice Largest
For me, "The Quations" section is more attractive than the "The solution" section. Thanks for your contributions.
2022.11.18 in #591 PWC191 - Cute List
I loved how Flavio play with numbers. Ideal use case for recursive. Keep it up great work.
2022.11.21 in #592 Speaking of certificates and Root CAs...
2022.11.22 in #592 Git worktree
Nice little introduction to git worktree. Highly recommended if you are git fan.
2022.11.23 in #592 Mojolicious cheatsheet
For Mojolicious fan, please checkout this cheatsheet.
2022.11.24 in #592 PWC192 - Binary Flip
Bitwise operation in full play in Perl and Raku. Nice work.
2022.11.25 in #592 PWC192 - Equal Distribution
Task analysis made it so simple to follow. Implementation in Perl and Raku is also fun to watch.
2022.11.26 in #592 Playing with MQTT
Do you know MQTT? I didn't. Thanks for sharing the knowledge.
2022.11.27 in #592 Advent of Code 2022 is coming
Never played with Advent of Code. If time permits, I will give it a go. Thanks for sharing.
2022.11.28 in #593 Advent of Code puzzle input downloader
2022.11.29 in #593 JSON Pure Perl Pretty Print
2022.12.01 in #593 PWC193 - Binary String
Nice show of Raku power to get the job done. Keep it up great work.
2022.12.02 in #593 PWC193 - Odd String
Creative individual approach one for each, Perl and Raku. Please do checkout.
2022.12.03 in #593 AoC 2022/1 - Caloric snacks
2022.12.04 in #593 AoC 2022/2 - Rock Paper Scissors cheat guide
2022.12.05 in #594 AoC 2022/3 - Misplaced supplies and where to find them
2022.12.06 in #594 AoC 2022/4 - Poor planning
2022.12.07 in #594 AoC 2022/5 - Insane crane
2022.12.08 in #594 PWC194 - Digital Clock
Flavio makes the task simple to follow. What a treat, thank you.
2022.12.09 in #594 PWC194 - Frequency Equalizer
The frank and open discussion is the highlight. Plenty to keep up busy every week.
2022.12.10 in #594 AoC 2022/6 - Canned diversity
2022.12.11 in #594 AoC 2022/7 - ENOSPC - no space left on device
2022.12.15 in #595 PWC195 - Special Integers
Getting to the end result can be enjoyable and fun journey. Flavio definitely makes it like one. Keep it up great work.
2022.12.16 in #595 PWC195 - Most Frequent Even
Getting Perl and Raku solutions side-by-side makes it easy to follow. Nice one, thanks.
2022.12.19 in #596 AoC 2022/13 - Nested lists
2022.12.20 in #596 AoC 2022/14 - Sand accumulation
2022.12.21 in #596 AoC 2022/15 - Diamonds are squares in disguise
2022.12.22 in #596 PWC196 - Pattern 132
No new questions, that is win for me. Keep it up great work.
2022.12.23 in #596 PWC196 - Range List
Lucky twice this week, no questions asked. Thank you for sharing knowledge.
2022.12.24 in #596 AoC 2022/16 - Pressured shame
2022.12.25 in #596 AoC 2022/17 - Tetris-ish accumulation
2022.12.29 in #597 PWC197 - Move Zero
Well documented solution as always. Thanks for sharing.
2022.12.30 in #597 PWC197 - Wiggle Sort
Interesting task analysis ends up with easy and simple solution. Well done.
2023.01 in #601 Doubtful about release new module AstEval
Flavio coded a new module AstEval but he is doubtful about releasing it on CPAN.
2023.01.01 in #597 Happy New Year!
2023.01.02 in #598 AoC 2022/23 - Unstable diffusion
2023.01.03 in #598 AoC 2022/24 - These elves require a lot of patience...
2023.01.04 in #598 AoC 2022/25 - Wind down, hot air up!
2023.01.05 in #598 PWC198 - Max Gap
Clean straight forward solutions both in Perl and Raku. Thanks for your contribution.
2023.01.06 in #598 PWC198 - Prime Count
Pleasantly surprised with the fun approach. Keep up the great work.
2023.01.07 in #598 AoC 2022/16 - Paying a debt
2023.01.08 in #598 AoC 2022/16 - OMG what an improvement
2023.01.09 in #599 New App::Easer release 2.006
2023.01.10 in #599 Home-brewn sets
Set operations are rarely needed, but when they are, perl developers usually use the keys of a hash to pretend they have sets.
2023.01.12 in #599 PWC199 - Good Pairs
Flavio couldn't resist using one-liner in Perl and Raku. Always a treat.
2023.01.13 in #599 PWC199 - Good Triplets
Although, not to his taste but we still have a solution. Fun Fun Fun.
2023.01.14 in #599 jq cheats
jq is an excellent tool to interrogate and even change a JSON file. Flavio has some examples.
2023.01.16 in #600 Synacor Challenge - my repo
Did you know about Synacor Challenge? I didn't. Find out more in the blog post.
2023.01.19 in #600 PWC200 - Arithmetic Slices
No question from Flavio this week. Straight to the solution in Perl and Raku. Thank you.
2023.01.20 in #600 PWC200 - Seven Segment 200
Good use of state in the solution. Thanks for sharing.
2023.01.22 in #600 KnowTee - easy notifications
Another tool for hobby-scale projects. Interesting, worth checking.
2023.01.24 in #601 Monty Hall - the comeback!
You're given three doors, A, B, and C. There is a prize behind one. If you choose the right door, you win the prize. What is the prize?
2023.01.25 in #601 Turn this in that
'So well, yeah... this is as much of an incomplete post as it can be, but I set a goal to write/publish something every day, not to always write self-contained meaningful stuff!' I like that spirit!
2023.01.26 in #601 PWC201 - Missing Numbers
Cute solutions in Perl and Raku equally. Thanks for keeping us enlightened.
2023.01.27 in #601 PWC201 - Penny Piles
Little overloaded for me, had to read twice to get my head around it. Liked the discussion of __SUB__.
2023.01.28 in #601 Quick note about caller
This is mostly a mute post, as the code below should say it all SYNOPSIS-style.
2023.02.01 in #602 Data::Resolver - some docs
2023.02.02 in #602 PWC202 - Consecutive Odds
Interesting questions raised and cool solutions too in the end. Well done.
2023.02.03 in #602 PWC202 - Widest Valley
Loved the story behind the solution. The process of getting there is always fun. Great work, keep it up.
2023.02.04 in #602 I used... Raku
Why use Raku? Nice answer.
2023.02.05 in #602 Add a base URL to xlinx
2023.02.09 in #603 PWC203 - Special Quadruplets
No hard question for me this time, happy me. Thanks for your funny notes.
2023.02.10 in #603 PWC203 - Copy Directory
Cool use of CPAN modules, I loved it. Thanks for sharing the knowledge.
2023.02.13 in #604 csv2json
Handy tool to convert csv file to JSON. You get plenty of examples to play with.
2023.02.14 in #604 PDF::Collage on CPAN
Short and sweet introduction to PDF::Collage.
2023.02.15 in #604 A quick look at Skate
The personal key value store with a simple, powerful command line user interface. You can also sync it across all your machines to access your data anywhere.
2023.02.16 in #604 PWC204 - Monotonic Array
Raku solution is more impressive than the Perl one. The one-liners solution is full of jargons. Thanks for keeping us entertained.
2023.02.17 in #604 PWC204 - Reshape Matrix
Turning Perl version to Raku can be fun. The end result is very impressive. Good job.
2023.02.18 in #604 Reflections after a couple of weeks of Data::Resolver
Sharing the feedback on recently uploaded module Data::Resolver.
2023.02.20 in #605 Data::Resolver base class for resolver
2023.02.21 in #605 mobundle
2023.02.22 in #605 Tantalizing TTD
I see TDD as an ideal that you can rarely attain. In green-field projects I rarely know how things should work so my test-writing lags behind the code-writing. However usually after 'some' development I start to feel the lack of tests and then my focus changes.
2023.02.23 in #605 PWC205 - Third Highest
Straight forward solutions in Perl and Raku is shared week after week without any fuss. Thanks for sharing.
2023.02.24 in #605 PWC205 - Maximum XOR
Raku magical power can make any solutions look elegant. Great work, keep it up.
2023.02.25 in #605 Portable(ish) Random(ish) Number Generator
2023.02.27 in #606 Simple avatars
Do you like Avatars? If yes then please do checkout this blog post. It has plenty to keep you busy.
2023.02.28 in #606 Terminal avatars
Well, having done the image avatars before, it is time to do terminal. Go for it.
2023.03 in #607 Windows paths
2023.03 in #607 Release time!
Data::Resolver now includes the new object-oriented interface; Template::Perlish is now at version 1.60. Last, thanks to the infaticable djerius, a lot of bugs were unearthed for App::Easer and are now hopefully fixed.
2023.03.01 in #606 mobundle gets some love
mobundle? never heard of it before. time to checkout now.
2023.03.02 in #606 PWC206 - Shortest Time
Having solutions in Perl and Raku side by side is so much fun to see the two different approaches to solve the task. Thnk you for everything.
2023.03.03 in #606 PWC206 - Array Pairings
Here is Perl expert getting his hand dirty with Raku. Truly inspirational.
2023.03.04 in #606 Data::Resolver - trial release with OOP interface
A triak release waiting for you. Please share your feedback with the author.
2023.03.05 in #606 CPAN Tester rock!
CPAN Tester done it again one more time. Wekk done.
2023.03.09 in #607 PWC207 - Keyboard Word
Narration focussed more on Raku than Perl. It is always treat to read the blog post.
2023.03.10 in #607 PWC207 - H-Index
The end result of Perl and Raku solutions look so similar. Thanks for sharing the knowledge.
2023.03.12 in #607 Romeo - xxd
2023.03.15 in #608 tempfile and mktemp
Deal with the warning tempfile is deprecated. Nice work.
2023.03.16 in #608 1000th consecutive posting day
What an achievements!!! Congratulation for reaching the milestone. Keep it up great work.
2023.03.17 in #608 PWC208 - Minimum Index Sum
Valid questions raised but we still have working solutions in Perl and Raku. Thank you.
2023.03.18 in #608 PWC208 - Duplicate and Missing
A rather lengthy blog post for the task. Thanks for sharing the knowledge.
2023.03.19 in #608 First release of Validate::CodiceFiscale
Find the reason behind the creation of Validate::CodiceFiscale.
2023.03.21 in #609 Fantasy Name Generator
2023.03.22 in #609 AutoHotKey
2023.03.23 in #609 PWC209 - Special Bit Characters
Use of regex made the solution so simple and easy to follow. Nice attempt.
2023.03.24 in #609 PWC209 - Merge Account
A rather long solution from Flavio's own standard. Plenty to keep you busy.
2023.03.25 in #609 Command-line editing
And what about Ctrl-X Ctrl-E ?
2023.03.27 in #610 Playing with PNG files
It is not easy to play with PNG or any other images but here you get insight for fun. Nice work.
2023.03.28 in #610 PNG Attachments in Romeo
Here we get the how-to do PNG attachements in Romeo. This will keep you busy.
2023.03.29 in #610 Binary data in jq
If you ever played with jq then this is for you when dealing with binary data.
2023.03.31 in #610 PWC210 - Number Collision
To me, the question section of the post is most entertaing. So much to learn from the post every week. Well done.
2023.03.39 in #610 PWC210 - Kill and Win
Too many holes in the task but you still have solution from Flavio. Keep it up great work.
2023.04.01 in #610 Encoding is hard
Encoding is not my favourite subject but here it is discussed in simple language that makes it easy to follow.
2023.04.06 in #611 PWC211 - Toepliz Matrix
Nice trick to deal with matrix, very smart. The end result is so easy to follow. Keep it up great work.
2023.04.07 in #611 PWC211 - Split Same Average
Too much maths involved in the discussion. However it does take the complexity away. Cool.
2023.04.10 in #612 Rearviewmirror on Kasai!
2023.04.11 in #612 Some hats icons
2023.04.12 in #612 Thinking on a data collection API
2023.04.13 in #612 PWC212 - Jumping Letters
Nice explanation of each and every tiny details. Nothing is left for the readers. Spoon feeding.
2023.04.14 in #612 PWC212 - Rearrange Groups
Perl got preference this week. Nice one. Thanks for your contributions.
2023.04.15 in #612 Data collection update
2023.04.16 in #612 Cloudflare caching
2023.04.20 in #613 PWC213 - Fun Sort
Two different approaches, one for Perl and another for Raku. The end result looks so simple.
2023.04.21 in #613 PWC213 - Shortest Route
Dijkstra’s algorithm explained in plain english. Thanks for sharing.
2023.04.22 in #613 Removing a session in Mojolicious
The server can ask the browser to remove the session, by getting rid of the cookie. On the other hand, if for some reason the browser is not collaborating (e.g. refusing to delete the session cookie), then the session will stick up to the expiration time.
2023.04.24 in #614 Tracciatore - starting point
Work in progress on data collection API.
2023.04.25 in #614 I'll probably resume LaTeX
2023.04.26 in #614 LaTeX in Alpine Linux
2023.04.27 in #614 PWC214 - Rank Score
No question this week, just the solutions in Perl and Raku. Nice attempt, keep it up.
2023.04.28 in #614 PWC214 - Collect Points
Brute force to get the job done this week. A rather long winded solution. Thanks for sharing.
2023.04.29 in #614 Why Perl?
Find the answer to the most common question ....
2023.05 in #619 serve_this
Is a tool to explore a directory tree through the browser - to serve the files as a static web site.
2023.05.03 in #615 Posterior Predictive
2023.05.04 in #615 PWC215 - Odd One Out
Reading Raku solutions seems like a poetry, very smart. Just loved it. Thank you.
2023.05.04 in #617 PWC215 - Odd One Out
Reading Raku solutions seems like a poetry, very smart. Just loved it. Thank you.
2023.05.05 in #615 PWC215 - Number Placement
As always, "The questions" section is the highlight of the post. You don't want to miss out. Keep sharing your knowledge with us.
2023.05.05 in #617 PWC215 - Number Placement
As always, "The questions" section is the highlight of the post. You don't want to miss out. Keep sharing your knowledge with us.
2023.05.06 in #615 Font selection in PDF::Builder
2023.05.07 in #615 SVG viewBox and px
Way more than you'd normally want to know about SVG.
2023.05.08 in #616 SVG px conversion in Perl
Nice little example showing how to convert px to point in SVG.
2023.05.09 in #616 SVG Text elements
2023.05.10 in #616 SVG to PDF::Collage
Possible way to generate a template for PDF::Collage in a graphical-ish way.
2023.05.11 in #616 PWC216 - Registration Number
Too many questions but the solution is too simple. How? Do checkout the solution.
2023.05.12 in #616 PWC216 - Word Stickers
Quite a detailed discussion of the solution, kudos for the efforts. Thanks for sharing.
2023.05.20 in #617 Data::Resolver alternatives yield... alternatives
Data::Resolver provides both a unified interface to resolve keys to data (available as file, filehandle, or in-memory), as well as a few concrete implementations to do this on the filesystem and with TAR files.
2023.05.21 in #617 Friday card game - metadata
Friday is a solo board game. Sounds interesting.
2023.05.22 in #618 Data::Resolver refactoring
Trying new OOP interface. Is it worth it?
2023.05.23 in #618 Relying on CPAN modules
Interesting topic to be discussed, specially if you are CPAN fan. Please do checkout.
2023.05.24 in #618 Data::Resolver tricky test
If you are into testing then this is for you. Interesting use case.
2023.05.25 in #618 PWC218 - Maximum Product
Nice and easy solution with self explanatory notes. Well done.
2023.05.26 in #618 PWC218 - Matrix Score
No questions asked, wow, that is an achievement. Bonus we have a detailed discussion of the solution. Cool attempt.
2023.05.28 in #618 Coding discipline: resist premature generalization
factor or re-factor? Find the answer in the post.
2023.06.01 in #619 PWC219 - Sorted Squares
2023.06.02 in #619 PWC219 - Travel Expenditure
2023.06.03 in #619 A cheaper terminal trick
An addition to A cheap trick to manipulate PERL5LIB.
2023.06.04 in #619 DNS validation: validns
Flavio writes: I wanted to do some validation upon a few domains lately, and it was an excellent occasion to use module Net::DNS. The result for what I coded so far is shared in repository validns.
2023.06.07 in #620 DNS over TCP
DNS over TCP has two added bytes for length. - Nothing to do with Perl really, but it is interesting to read about networking stuff.
2023.06.08 in #620 PWC220 - Common Characters
2023.06.09 in #620 PWC220 - Squareful
2023.06.14 in #621 Log::Any::Adapter::Log4perlTiny
Log::Any provides a standard log production API for modules. Log::Any::Adapter allows applications to choose the mechanism for log consumption, whether screen, file or another logging mechanism like Log::Dispatch or Log::Log4perl.
2023.06.15 in #621 PWC221 - Good Strings
2023.06.16 in #621 PWC221 - Arithmetic Subsequence
2023.06.17 in #621 Zip bombs and quine.zip
This is the occasion when I have no clue what Flavio is talking about... OK, I clicked on the quine.zip link and then went back to his post. Now I think I understand it better. Nice and scary puzzle.
2023.06.18 in #621 Reddit debacle
I have a love-hate relationship with Reddit. It can be a source of interesting posts, but also some really disgusting comments that go unchallenged. Anyway, this post. And the embedded history lesson!
2023.06.19 in #622 Recursive closure
Please do checkout the little refresher about closure in Perl. Incredible work.
2023.06.20 in #622 RDAP is the new WHOIS
Nice introduction to RDAP. Thanks for sharing the knowledge.
2023.06.22 in #622 PWC222 - Matching Members
Don't you love the question section? My favourite always. Quick and easy solutions. Thank you for the contributions.
2023.06.23 in #622 PWC222 - Last Member
A thorough and detailed analysis of the task. You really don't want to miss it. Keep it up great work.
2023.06.24 in #622 ValiDNS is useable
A very handy tool for all system administrators. This must be bookmarked.
2023.06.27 in #623 GitHub Pages failed me
This and the following article just made me want to explore the various Static Site Generators.
2023.06.28 in #623 kramdown Table of Contents in pages
2023.06.30 in #623 PWC223 - Count Primes
Compact solutions in Perl and Raku too. You must checkout.
2023.07.01 in #623 PWC223 - Box Coins
Brute force can be handy as shown in this blog. Well done.
2023.07.02 in #623 dynamically
The discovery of Syntax::Keyword::Dynamically.
2023.07.06 in #624 PWC224 - Special Notes
Once again we have one-liner in Raku for the task. Bonus Perl solution too. Thank you.
2023.07.07 in #624 PWC224 - Additive Number
Brute force option can be fun as shown in the blog post. Well done and keep it up.
2023.07.13 in #625 PWC225 - Max Words
Regex magic in play both for Perl and Raku. Highly recommended.
2023.07.14 in #625 PWC225 - Left Right Sum Diff
Straight translation of the given formula in Perl and Raku. Cool attempt, well done.
2023.07.19 in #626 LDAP groups expansion
Please find working code in Perl to play with LDAP directory.
2023.07.20 in #626 PWC226 - Shuffle String
Sweet and short one-liner in Perl and Raku. Great work, keep it up.
2023.07.21 in #626 PWC226 - Zero Array
Flavio seems to be on mission to get the job done one-liner. Clever coding, well done.
2023.07.25 in #627 Three days of pause
After 3 years of blogging every day, Flavio took a 3-day break. Just to have fresh start.
2023.07.28 in #627 PWC227 - Friday 13th
Raku one-liner is worth taking a look. You will fall in love with it. Thanks for sharing.
2023.07.29 in #627 PWC227 - Roman Maths
Roman number task solved by resident of Rome. Nice co-incidence. Highly recommended.
2023.07.30 in #627 Romeo teepee gets looping option
Romeo is a hydra-like Perl program. But what is Hydra? Here is what Flavio says about Romeo: Terminal utilities, mainly for fun and celebrating a great cat.
2023.08.05 in #628 PWC228 - Unique Sum
Great use of BagHash and it's counterpart in Perl. Great work, keep it up.
2023.08.06 in #628 PWC228 - Empty Array
No question from Flavio, that is big achievements. Thanks for your support and encouragements.
2023.08.07 in #629 Validate::CodiceFiscale update
After coding the initial release of Validate::CodiceFiscale, it was clear that there was a big elephant in the room.
2023.08.26 in #631 Frustrating results with PerlMagick
2023.09.20 in #635 SQLite import with AutoCommit turned off
Importing CSV files into SQLite using perl (or I guess any other programming language) is slow. One can use the native .import command or one can turn of AutoCommit and commit all the inserts only at the end of the run.
2023.10.07 in #637 PWC237 - Seize The Day
Interesting questions raised and well taken. Glad to see him back in action.
2023.10.08 in #637 PWC237 - Maximise Greatness
The fine details shared in the post is not to be missed. You must check it out.
2023.10.22 in #639 PWC239 - Same String
Proper verbose solution in Perl. Thanks for sharing.

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