This week, we:
These are some answers to the Week 277, Task 1, of the Perl Weekly Challenge organized by Mohammad S. Anwar.
Spoiler Alert: This weekly challenge deadline is due in a few days from now (on July 14, 2024, known in France as Bastille Day, at 23:59). This blog post provides some solutions to this challenge. Please don’t read on if you intend to complete the challenge on your own.
You are given two arrays of strings, @words1 and @words2.
Write a script to return the count of words that appears in both arrays exactly once.
Example 1
Input: @words1 = ("Perl", "is", "my", "friend")
@words2 = ("Perl", "and", "Raku", "are", "friend")
Output: 2
The words "Perl" and "friend" appear once in each array.
Example 2
I attended YAPC::Hiroshima 2024 in Japan.
A few people asked me about the distinctions between YAPC::Japan and other Perl events worldwide, prompting me to write below. Before delving into the specifics, I must preface that my experience is primarily rooted in YAPC::Hiroshima 2024, the only YAPC::Japan event I attended. It's important to say that comparing Perl events across different regions isn't about establishing superiority or inferiority; organizing conferences requires considerable resources and effort irrespective of location. Each conference has its unique approach and metrics for success. The observations I offer are purely subjective and reflect my personal views.
Size
If you have been following along with the efforts to add a Science Track to the TPRC, now is the time to seriously consider submitting a peer reviewed paper. The TPRC Call for Papers has opened with information on submitting to any of the 3 tracks. Note that the science papers are submitted to the Perl Community's Science Perl website, which is linked in the TPRC's announcement.
Repost from, https://news.perlfoundation.org/post/cfp2024
You can submit your talk Ideas at https://tprc.us/talks Talk submission deadline is April 5th, Midnight UTC. Talks must be given live and in-person. If you are looking for any talk ideas, try out the conference wiki.
New this year, we are accepting submissions for a peer reviewed Science track. Those talks should be submitted at https://science.perlcommunity.org/
Visit the TPRC 2024 website at https://tprc.us/ Follow us on Twitter: @PerlConferences Like us on Facebook: The Perl Foundation (@tpf.perl) Subscribe to the mailing list: https://tprc.us/subscribe
Any questions about the Science Track should be directed to "science at perlcommunity.org" or visit us at #science on irc.perl.org.
Looking forward to seeing all the submissions!
Cheers,
Brett Estrade (OODLER)
Chairman, Science Perl Committee
Just Paul and Philippe this week:
In absence of many other pressing issues, we spent some time thinking ahead to large-scale development work that might take place in the 5.41 series. We talked about “hooks” as a potential long-term thought to making a more powerful Magic-like structure, for implementing new features, attributes, etc..
These are some answers to the Week 256, Task 2, of the Perl Weekly Challenge organized by Mohammad S. Anwar.
Spoiler Alert: This weekly challenge deadline is due in a few days from now (on February 18, 2024 at 23:59). This blog post provides some solutions to this challenge. Please don’t read on if you intend to complete the challenge on your own.
You are given two strings, $str1 and $str2.
Write a script to merge the given strings by adding in alternative order starting with the first string. If a string is longer than the other then append the remaining at the end.
Example 1
Input: $str1 = "abcd", $str2 = "1234"
Output: "a1b2c3d4"
Example 2
Input: $str1 = "abc", $str2 = "12345"
Output: "a1b2c345"
Example 3
Crypt::Passphrase is a module for managing passwords. It allows you to separate policy and mechanism, meaning that the code that polices authorization doesn’t have to know anything about what algorithms are used behind the screen, and vice-versa; thus making for a cryptographically agile system.
It’s not only handling the technical details of password hashes for you but also it deals with a variety of schemes. It’s especially useful for transitioning between them.
A configuration might look like this (Koha):
日本のYAPCに参加したのは18年ぶり2度目。
イベント参加者として
ボランティアとして
TPFの人間として
トークについて
アメリカのカンファレンス主催側の者として
まとめ
Back to the usual three of us
Further chats on allowing a subsequent use VERSION of the same value as is already prevailing
We continued going through the bug list to tag release blockers
These are some answers to the Week 276, Task 2, of the Perl Weekly Challenge organized by Mohammad S. Anwar.
Spoiler Alert: This weekly challenge deadline is due in a few days from now (on July 7, 2024 at 23:59). This blog post provides some solutions to this challenge. Please don’t read on if you intend to complete the challenge on your own.
You are given an array of positive integers, @ints.
Write a script to return the total number of elements in the given array which have the highest frequency.
Example 1
Input: @ints = (1, 2, 2, 4, 1, 5)
Ouput: 4
The maximum frequency is 2.
The elements 1 and 2 has the maximum frequency.
Example 2
A longer version of this post, including the full timeline as we know it, is available at security.metacpan.org
Between Dec 2023 and Jan 2024, vulnerabilities in Spreadsheet::ParseExcel and Spreadsheet::ParseXLSX were reported to the CPAN Security Group (CPANSec). This document describes the timeline and analysis of events.
Đình Hải Lê discovered an arbitrary code execution (ACE) vulnerability in the Perl module Spreadsheet::ParseExcel, version 0.65 and earlier.
An attacker, exploiting this vulnerability, would craft an Excel file containing malicious code encoded as a number format string, which is executed when the file is parsed by Spreadsheet::ParseExcel. Basically, untrusted data is passed to the Perl eval function enabling arbitrary code execution.
A detailed write up of the vulnerability and Proof of Concept (PoC) is available at
https://github.com/haile01/perl_spreadsheet_excel_rce_poc
After three years of not organising and one successful PTS in Lyon last year, we might have become a bit complacent and forgotten how taxing organizing an event is... After a very slow preparation, we are very pleased to announce the fourteenth edition of the Perl Toolchain Summit!
In 2024, we will be meeting in Lisbon, Portugal, from Wednesday April 25 to Sunday April 28. As has become customary, participants will stay at the hotel, and work in the meeting rooms dedicated for the event.
This week, the three of us:
use VERSION restrictions have had mostly positive responsesData::Printer can’t go in core as-is, but there’s a use case for a debugging helper, some of which might be hidden in D:P’s corebuiltin::numify function (and the corresponding OP in core)These are some answers to the Week 276, Task 1, of the Perl Weekly Challenge organized by Mohammad S. Anwar.
Spoiler Alert: This weekly challenge deadline is due in a few days from now (on July 7, 2024 at 23:59). This blog post provides some solutions to this challenge. Please don’t read on if you intend to complete the challenge on your own.
You are given an array of integers, @hours.
Write a script to return the number of pairs that forms a complete day.
A complete day is defined as a time duration that is an exact multiple of 24 hours.
Example 1
Input: @hours = (12, 12, 30, 24, 24)
Output: 2
Pair 1: (12, 12)
Pair 2: (24, 24)
Example 2
Get ready for a night of code, community, and culinary delights at the TPRF Sponsored Dinner during FOSDEM! 🍽️✨ Join us on Saturday, February 3rd, for a three-course feast and vibrant conversations.
📅 When: Saturday February 3rd, evening
📍 Where: Bruxelles
🎉 What's Cooking: An unforgettable evening filled with tech talks, networking, and delicious bites!
🤩 How to Join:
RSVP now by filling in this form below and secure your spot! Let's make this dinner a celebration of code and camaraderie.
February 08, 6pm CT ~ Houston Perl Mongers Zoom Meeting 🔗 Thu Jan 25 2024
Title: Using Perl Prototypes
When: Thur February 8th at 6:00-8:00 PM CT (+6 UTC)
Where: (virtual, see below):
https://us02web.zoom.us/j/920069702
Meeting ID: 920 069 702
Password can be found by running this statement.
perl -e 'print +(0b1000100).((3<<2)*10).(010)."\n"' # 681208
Original post:
https://houstonperlmongers.org/posts/3a99ac5b-f9f9-4409-a38c-e9ef91d972c8
Just me and Graham this week.
builtin::nan needs better documentation on the kind of NaN it provides.builtin and lexical imports, and how to handle a few odd cornercases.These are some answers to the Week 275, Task 2, of the Perl Weekly Challenge organized by Mohammad S. Anwar.
You are given an alphanumeric string, $str, where each character is either a letter or a digit.
Write a script to replace each digit in the given string with the value of the previous letter plus (digit) places.
Example 1
Input: $str = 'a1c1e1'
Ouput: 'abcdef'
shift('a', 1) => 'b'
shift('c', 1) => 'd'
shift('e', 1) => 'f'
Example 2
2023 was a rather productive year for me on CPAN. Aided by taking some time off I managed to release a whopping 18 new modules.
Half of my new modules were related to my password framework Crypt::Passphrase. To be honest most of them are either small (± 100 LOC) glue two or three other pieces of code together. And then there was Crypt::HSM, a PKCS11 interface (to use cryptographic hardware without exposing cryptographic keys) that was probably more work (2600 LOC of XS) than the others combined.
Most of this was with the aim to add peppering support to Crypt::Passphrase, a subject extensive enough that I should probably dedicate a separate blogpost to it.
I am very pleased to announce that the 2024 Perl & Raku Conference Planning Committee (TPRC) is moving forward with the addition of a new track that targets academic, governmental, and industrial STEM applications. It will strive to be organized as a traditional science conference track; meaning the talks will be based on paper and poster submissions. (more on this in a future announcement!)
The decision by the TPRC Planning Committee is the result of an overwhelmingly positive response to the Science Track Survey that was held late in 2023. Everyone involved in organizing the survey deeply appreciates those who filled out the survey or shared it with others.
The track is being organized in tight cooperation with the TPRC, by the Science Perl Committee (SPC); a separately organized group of Perl and STEM enthusiasts that anyone of good will is welcome to join.
What to expect now: ...
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