Perl Weekly - all the articles published by E. Choroba

http://blogs.perl.org/users/e_choroba/

PAUSE: CHOROBA

2015.02.01 in #184 Choroba's report for January
Choroba describes his efforts with Net::HTTP::Spore. Not everyone who got a dzil-based dist was happy, but Choroba didn't have any problem.
2015.02.19 in #187 Analysing CPAN Testers' Reports
For his February assignment, E decided to look into his dist's CPAN Testers failures. He describes his approach and how it led in his pull request. The comments on his post point out some other tools that can help this sort of investigation.
2015.05.17 in #199 How I didn't fix AnyEvent::ForkManager
Choroba describes his efforts to try and resolve some CPAN Testers failures for AnyEvent::ForkManager. Ultimately he was unsuccessful — maybe you can take a look and help him out?
2015.07.12 in #207 Test failures in File::LibMagic
E Choroba was assigned File::LibMagic for July, and decided to address the CPAN Testers fails.
2015.10.11 in #220 Last Minute: HTML::Element::Replacer
Mr E (Ok, so I'm a Scooby Doo fan) takes us through his end-of-the-month under-the-influence PR on HTML::Element::Replacer. Don't do this at home, kids (coding under the influence I mean, not the submitting of pull requests!).
2015.11.01 in #223 Net::SFTP::Foreign in taint mode
This month Mr E was looking into a tainting issue. He didn't quite get to the bottom of it, but describes what he did learn. Can you help him, so he gets to do another PR on his assigned dist?
2016.01.03 in #272 XML::CompactTree::XS Works Again
A walkthrough of a bugfix for XML::CompactTree::XS
2016.03.16 in #243 Regex /m modifier bug in Perl 5.8.8 and older
It always gives me a warm fuzzy feeling when a participant in the Pull Request Challenge fixes CPAN Testers failures. This involved changing a regular expression so it wouldn't tickle a bug in an old version of Perl.
2017.04.23 in #300 Collisions in Block Names in Jemplate
E Choroba got Jemplate in the pull request challenge, and in fixing a bug in that, he ended up fixing the same bug in the Template Toolkit (Jemplate is an implementation of the Template Toolkit in Javascript).
2017.05.13 in #303 Turning Hooks off in App::GitHooks
App::GitHooks is an extensible plugins system for git hooks. Now you can turn it off using an environment variable.
2018.03.20 in #348 Numbers and Strings in JSON
If you plan to upgrade EL6 to EL7 (EL stands for Enterprise Linux), then you should read this.
2018.12.29 in #388 ARGV::OrDATA
Let the diamond operator read from DATA if there's no ARGV
2019.04.25 in #405 Perl Weekly Challenge 005: The Anagrams
E. Choroba joined the team last week and submitted the solution to the Challenge 005 in Perl 5. He made good use of Math::Combinatorics in his work.
2019.04.30 in #406 Perl Weekly Challenge 006: Ranges and Ramanujan's Constant
This was E. Choroba second week participating Perl Weely Challenge. In response to the Challenge 006, he showed the power of CPAN and how it can help you solve the challenge.
2019.05.16 in #408 Perl Weekly Challenge 007: Niven Numbers and a Word Ladder
Little late but it is priceless. I am glad to hear from E. Choroba about his solution to Challenge 007.
2019.06.15 in #412 Perl Weekly Challenge 012: Non-Prime Euclid Numbers and the Common Path
Choroba came up with helper module to solve the challenge. Check out his blog to find out why.
2019.06.22 in #413 Perl Weekly Challenge 013: Last Fridays and Hofstadter Female and Male Sequences
Choroba always blog about the weekly challenge solution. I always learn soemthing new from his blog. Please do check his blog.
2019.06.27 in #414 Perl Weekly Challenge 014: Van Eck and the US States
2019.07.03 in #415 Perl Weekly Challenge 015: Strong and Weak Primes, and Vigenère Cipher
I have noticed one thing in Choroba's solution is that he always go for CPAN module if available otherwise he creates one. It makes the final solution just few lines of code.
2019.07.14 in #416 Perl Weekly Challenge 016: Pythagoras Pie Puzzle and Bitcoin Address Validation
Choroba blog always taught me something new every week. This week, I tried to get my head around the graph. I specially enjoyed the discussion with regard to the Bitcoin address validation task. Must read, if you want to know the details.
2019.07.19 in #417 Perl Weekly Challenge 017: Ackermann Function and URL Parsing
Choroba introduced Erlang while working on Ackermann function. He always find some new distribution from CPAN to solve the task. This time, he used URI::URL to solve URL parser task. Great learning experience.
2019.07.26 in #418 Perl Weekly Challenge 018/1: Longest Common Substring
In this blog, E. Choroba, discussing the first task "Longest Common Substring". I loved the way he modularise the solution that makes it so easy to follow.
2019.07.28 in #418 Perl Weekly Challenge 018/2: Priority Queue
In this second blog of the week, Choroba shares his journey to sove the Priority Queues task. You can't afford to miss it.
2019.08.04 in #419 Perl Weekly Challenge 019: Five Weekends and Paragraph Wrapping
E. Choroba, while busy preparing slides for The Perl Conference in Riga, he quickly done the challenge and blog about it.
2019.08.11 in #420 Perl Weekly Challenge 020: Split on change + amicable numbers
Choroba very cleverly completed his tasks before the start of The PerlCon in Riga. As always the case he is spot on the task. Please take a look.
2019.08.31 in #423 Perl Weekly Challenge 023: Forward difference series & Prime decomposition
We missed Choroba's last couple of weeks. He is back with a bang again. You can't afford to miss it.
2019.09.08 in #424 Perl Weekly Challenge 024: Inverted Index and Shortest Oneliner
Choroba last minute blog is worth it as he used Perl structure instead of database to solve Inverted Index task. Must Read.
2019.09.15 in #425 Perl Weekly Challenge 025: Pokemon Sequence and Chaocipher
2019.09.22 in #426 Perl Weekly Challenge 026: Stones and Jewels; Mean of Angles
I liked the way, Choroba, used CPAN modules to solve the challenge.
2019.09.29 in #427 Perl Weekly Challenge 027: Intersection of Straight Lines and Historical Data
Choroba took us back to school with a refresher for finding the intersection of two lines.
2019.10.04 in #428 Perl Weekly Challenge 028: File Content and Digital Clock
Choroba never used file test operator -T and -B operators before. In this blog, he shared his journey.
2019.10.14 in #429 Perl Weekly Challenge 029: Brace expansion and calling a C function
E. Choroba always surprised me with his cjoice CPAN module. This time he used Syntax::Contruct. Checkout what he is doing with it.
2019.10.21 in #430 Perl Weekly Challenge 030: Sunday Christmas and Series with sum 12
Checkout the trick used by Choroba in the blog.
2019.10.27 in #431 Perl Weekly Challenge 031: Division by Zero & Dynamic Variable Name
E. Choroba advised how eval is not ideal for catching exception in pre-Perl v5.14. Also shared the best solution.
2019.11.03 in #432 Perl Weekly Challenge 032: Frequency Table & ASCII Bar Chart
Choroba came up with his collection of CPAN modules to solve this week challenge. Please checkout.
2019.11.10 in #433 Perl Weekly Challenge 033: Count Letters & Formatted Multiplication Table
Choroba didn't take the help of CPAN module for this task. Solution to the Task #2 is very elegant. Must Read.
2019.11.17 in #434 Perl Weekly Challenge 034: Slices and a Dispatch Table
Choroba kept the solutions simple without the use of CPAN module. Must Read.
2019.11.23 in #435 Perl Weekly Challenge 035: Binary Morse Code
The best solution, in my opinion, this week. A very compact solution. Highly Recommended.
2019.12.08 in #437 Perl Weekly Challenge 037: Weekdays and Daylight Gain/Loss
Choroba never misses the opportunity to use CPAN module. This time also he used the lovely Time::Piece to solve weekdays task.
2019.12.14 in #438 Perl Weekly Challenge 038: Date Finder and Word Game
Choroba shared the secret of case statement in perl. Highly Recommended.
2019.12.27 in #440 Perl Weekly Challenge 040: Multiple Arrays & Sort SubList
I was bowled over by one magical line in Task #2 solution. Thank you. Please checkout.
2020.01.14 in #443 Perl Weekly Challenge 043: Olympic Rings and Self-Descriptive Numbers
After a long time, Choroba didn't take help from CPAN module. Very elaborate blog, highly recommended.
2020.01.25 in #444 Perl Weekly Challenge 044: One Hundred, Two Hundred
2020.01.31 in #445 Perl Weekly Challenge 045: Square Secret Code & Source Dumper
Choroba made good use of Syntax::Construct to get the really cool solutions.
2020.02.08 in #446 Perl Weekly Challenge 046: Cryptic Message & Is the Room Open?
Choroba kept the solution simple and easy to read.
2020.02.22 in #448 Perl Weekly Challenge 048: Survivor and Palindrome Dates
Choroba shared multiple approach to solve the survivor task. Must Read.
2020.03.01 in #449 Perl Weekly Challenge 049: Smallest Multiple and LRU Cache
Choroba shared the secret how he improved the performace solving smallest multiple of 9.
2020.03.05 in #450 Perl Weekly Challenge 050: Merge Intervals and Noble Integer
Choroba nailed the Merge Intervals task thoroughly. You have to checkout his solution to see it yourself.
2020.03.15 in #451 Perl Weekly Challenge 051: 3 Sum and Colourful Numbers
Choroba as always came up with unique solution to the Colorful number task. Highly Recommended.
2020.03.22 in #452 Perl Weekly Challenge 052: Stepping Numbers & Lucky Winner
As always Choroba shared his magical solutions. Must Read.
2020.03.29 in #453 Perl Weekly Challenge 053: Rotate Matrix and Vowel Strings
Choroba shared the power of PDL. Please do check out the blog if you are interested in PDL.
2020.04.04 in #458 Perl Weekly Challenge 058: Compare Version and Ordered Lineup
Choroba shared interesting facts about the Perl::Version and how it deals with version comparison.
2020.04.05 in #454 Perl Weekly Challenge 054: Kth Permutation Sequence + Collatz Conjecture
Choroba blog is one such you wouldn't want to miss out. Highly Recommended.
2020.04.26 in #457 Perl Weekly Challenge 057: Invert Tree and Shortest Unique Prefix
The best part of Choroba's blog to me was how he converted string to tree and vice-versa. Must Read
2020.05.08 in #459 Perl Weekly Challenge 059: Linked List and Bit Sum
Choroba created handy little package to solve the Linked List task. Interesting.
2020.05.13 in #460 Perl Weekly Challenge 060: Excel Column And Find Numbers
Choroba started very interesting discussion about Excel column and various CPAN modules related to the task.
2020.05.24 in #461 Perl Weekly Challenge 061: Product SubArray And IPv4 Partition
Choroba, being the master of CPAN, once again the found the edge case of a popular CPAN module. Please find out more about it.
2022.06.21 in #570 Kronecker Product
Choroba initiated great discussion about Kronecker Product and the use of PDL. Highly Recommended.
2022.11.06 in #589 Array Degree
Welcome back to blogging after a long break. You will love the choice of Naive and Opitimised solutions. Highly Recommended.
2023.12.22 in #648 Step Counter (Advent of Code 2023/21)
Pleasure to see E. Choroba back to blogging, thanks to Advent of Code. I hope to see more from him.
2024.03.17 in #660 Changes in MooX::Role::Parameterized
For all Moo users, this is for you if you have worked with Roles. This change would make your life easy. Enjoy !!
2024.09.22 in #687 Strong Password
Great to see blog post after a long time. You can clearly see the reason why it is needed. You really don't want to skip it.

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