Watching some of the vids coming out of this year's Perl and Raku Conference. Ingy döt Net's talk on his work on Lingy and YAMLScript was pretty amazing.
Lingy is a #clojure hosted on #perl - Perl code can call Lingy code can call Perl code. The idea of having a Lingy VM with JIT is very appealing.
YAMLScript is a YAML-style dialect of Lingy (or any Clojure implementation), for those who don't like LISP style.
Check the talk out here: https://youtu.be/9OcFh-HaCyI
Lingy & YAMLScript - News Ways to Program Perl - Ingy döt Net - The Perl and Raku Conference 2023
#tprc #perl #yaml #ingydotnetLingy brings to Perl what Clojure did for Java. Immutable data, functional programming, simple concurrency and the genius of Lis...YouTube
This entry was edited (1 year ago)
Mark Gardner reshared this.
fuzzix
in reply to fuzzix • • •I'm still grappling with the possible implications of this work. Lingy, as I understand it, is being designed to be somewhat portable ... Imagine Clojure as a lingua franca alongside C with JIT-level performance to match.
Ingy also demoed a wrapper for YAML parsers which could read configs as YAMLScript. Imagining my config files becoming config middleware - This machine has 'test' in the hostname, return the test database credentials...
(Not sure how I feel about something like that just yet)
fuzzix
in reply to fuzzix • • •Also enjoyed Ovid's Corinna / feature 'class' update (go install 5.38!), which also featured a reveal of Oshun - a type *checking* system for #perl applications, intended to be deployed at the borders of your application to aid your data integrity endeavours.
This builds on the TYPE attribute parameter to `my` which has been in the Perl docs since 5.8.0 and has been, erm, "evolving" since then.
Check out the talk here: https://youtu.be/uT0S-jfO1mE
Check out Oshun here: https://github.com/Ovid/oshun
Perl’s new object-oriented syntax is coming, but what’s next? - Curtis Poe - Keynote - TPRC 2023
YouTubeMark Gardner reshared this.
fuzzix
in reply to fuzzix • • •Type checking systems are nothing new in #perl. Moo* users will probably be familiar with `isa` which is an extensible type check for object member's values.
These aren't just the int or char* you might expect when talking about types, but can be used to assert the instance type of an object, whether or not a string looks like a URL or a UUID or a postal code, and so on.
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Toby Inkster :verified: and Mark Gardner reshared this.
Marcus
in reply to fuzzix • • •fuzzix
in reply to fuzzix • • •Couple of short, fun TPRC vids. The first is The PerlayStation Games Console where Saif Ahmed presents his console-based GUI library built from braille and block quadrant Unicode characters.
Saif built this to facilitate instrument control and data analysis tasks in his research, but a number of demos are shown here including games. With clear inspiration taken from the #zxspectrum, this is a fun #perl project.
Check it out here: https://youtu.be/wUKcfQwHmR8
The PerlayStation Games Console - Saif Ahmed - TPRC 2023
YouTubefuzzix
in reply to fuzzix • • •The second is Creating Algorithmic Music with #Perl where Gene Boggs gives an overview of some of the algorithmic and generative music #MIDI modules he has been developing.
There is a whole suite of these on CPAN*. Demos go from simple scales, melodies and lead phrases to a web app which can generate Jazz/Rock accompaniment audio for you to practice with. Check it out here: https://youtu.be/TCPK9j-Uo9s
* https://metacpan.org/search?q=author%3AGENE&q=MIDI
Creating Algorithmic Music with Perl - Gene Boggs - TPRC 2023
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Gene Boggs
in reply to fuzzix • • •Gene Boggs
in reply to Gene Boggs • • •fuzzix
in reply to fuzzix • • •Another cool presentation from TPRC. Ingy talks about a #coffeescript style destructuring syntax for #perl which he hopes to introduce as a core language feature: https://youtu.be/ifoYsubNRj4
Destructuring allows you to dereference and assign elements of a data structure in one go. Rather than have multiple assignment statements, you can reference key names and apply names to array elements by appropriately structuring the LHS clause of a single assignment statement.
WIP: https://metacpan.org/dist/assign/view/lib/assign.pod
Destructuring - A New Syntax for Perl Assignment Statements - Ingy döt Net - TPRC 2023
YouTubeMark Gardner
in reply to fuzzix • • •fuzzix
in reply to Mark Gardner • • •Mark Gardner
in reply to fuzzix • • •I have bad news for you: #SOAP came out of that same era. It was an over-engineered adaptation by #Microsoft and @w3c of @davew’s #XMLRPC
Mind you, the entire #XML-based #WebServices stack of standards is being re-accreted on top of #JSON with efforts like #OpenAPI and JSON Schema. The final and once-again neglected piece is automated service discovery à la #UDDI
Profoundly Nerdy
in reply to Mark Gardner • • •Mark Gardner
in reply to Profoundly Nerdy • • •Profoundly Nerdy
in reply to Mark Gardner • • •@mjgardner There is a certain elegance to simplicity. Simple things are easier to debug than complex things. Some simple things can scale in ways no other structues can, which is what fractals are, basically.
Sometimes "edge-case" is code for "I'm using the wrong tool for the job." XD
Mark Gardner
in reply to Profoundly Nerdy • • •@profoundlynerdy It’s a tradeoff. If we leaned too far towards small simplicity we’d still be gluing together grep, sed, and awk with #shell scripts (and dealing with different versions and variants’ portability headaches) instead of writing #Perl.
And as Perl’s star has fallen, so-called “#DevOps” are still doing the former or have turned to #Python or other languages whose vanguard didn’t Osborne away their lead.
Bolo Lacertus
in reply to Mark Gardner • • •Mark Gardner
in reply to Bolo Lacertus • • •• https://manpages.debian.org/devscripts/checkbashisms.1.en.html exists
• is written in #Perl
• and is used by the #Debian #Linux project (as part of #Lintian) to automatically reject any packages that assume every #shell acts like #bash
…tells me all I need to know about the supportability of shell scripts
Profoundly Nerdy
in reply to Mark Gardner • • •Jeff
in reply to Mark Gardner • • •@mjgardner @bololacertus @profoundlynerdy checkbashisms exists because Debian's default /bin/sh is `dash`, the Debian Almquist Shell, a port of NetBSD's ash. Both of which are pretty strict, minimalist POSIX shells. They do this to speed up things like booting and package install (particularly during system installation). Bash is 10x bigger just by file size.
(I'm in the camp that abandoned perl for shell and python, and I tend to use [d]ash not bash for scripts 😀
Bolo Lacertus
in reply to Jeff • • •Mark Gardner
in reply to Bolo Lacertus • • •@bololacertus @overeducatedredneck @profoundlynerdy Put another way, `checkbashisms` exists because the only way to get #shell scripters to stick to strict #POSIX syntax and userland programs is to automatically reject deviations with extreme prejudice.
And please don’t get me started on #Python portability. Y’all can’t even settle on how to manage the virtual environments that every individual Python-based tool requires.
Profoundly Nerdy
in reply to Mark Gardner • • •Gene Boggs
in reply to Profoundly Nerdy • • •Mark Gardner
in reply to Gene Boggs • • •Andrew Hewus Fresh
in reply to Mark Gardner • • •I use plenv so I can have lots of different perl versions available to shake out test failures. https://github.com/tokuhirom/plenv
@ology @profoundlynerdy @bololacertus @overeducatedredneck @fuzzix
GitHub - tokuhirom/plenv: Perl binary manager
GitHubMark Gardner
in reply to Andrew Hewus Fresh • • •@AFresh1 Yes, because you care about distributing code that others *don’t* need a separate virtual #Perl environment to run.
Nearly every set of end-user installation instructions for #Python-based applications begins with steps to give the app its own virtual environment with separate interpreter and dependencies.
/cc @ology @profoundlynerdy @bololacertus @overeducatedredneck @fuzzix
Mark Gardner
in reply to Profoundly Nerdy • • •@profoundlynerdy @bololacertus @overeducatedredneck It’s not necessary for most because the #Perl culture gives a damn about not wasting users’ time while still moving the language forward: https://fosstodon.org/@leonerd/111856552091954510
Some more @leonerd posts from the same thread:
https://fosstodon.org/@leonerd/111852567952393719
https://fosstodon.org/@leonerd/111855908131666259
https://fosstodon.org/@leonerd/111856356366461768
If you must have multiple Perls, #perlbrew is simple and common: https://perlbrew.pl
Paul Evans
2024-02-01 13:52:13
Perlbrew
perlbrew.plProfoundly Nerdy
in reply to Bolo Lacertus • • •Unofficial bash strict mode
GistMark Gardner
in reply to Profoundly Nerdy • • •Mark Gardner
Unknown parent • • •@Rog @profoundlynerdy “Standard #Linux tools” vary as you move to #macOS and other #BSD variants.
That’s the portability headache I alluded to.
But if your world is circumscribed by #Linux, #bash, and #GNU userland, more power to you
Mark Gardner
Unknown parent • • •Mark Gardner
Unknown parent • • •@anubhav @profoundlynerdy @bololacertus https://social.sdf.org/@mjgardner/110707555587542242
Mark Gardner
2023-07-13 15:47:18