Perl Toolchain Summit 2024 - Lisbon

https://blogs.perl.org/users/timothy_legge/2024/05/perl-toolchain-summit-2024---lisbon.html

use 5.038; use strictures; use Kavorka qw(fun); use Moops; our %TypeVarRegistry; class MyTypes extends Type::Library :ro { use Type::Library -declare => qw(TypeVar TypeVarExpr); use Types::Common::String qw(NonEmptyStr); use Types::Standard qw(ArrayRef); use Types::Common::Numeric qw(PositiveOrZeroInt); my $TypeVar = Type::Tiny->new( name => 'TypeVar', constraint_generator => fun(NonEmptyStr $name → CodeRef) { fun {} } ); my $TypeVarExpr = Type::Tiny->new( name => 'TypeVarExpr', constraint_generator => fun(NonEmptyStr $name → CodeRef) { fun {} } ); my $SizedArray = Type::Tiny->new( name => 'SizedArray', parent => ArrayRef, constraint_generator => fun( Enum["type"] $literal_type, Type::Tiny $parameterized, Enum["length"] $literal_length, $expr → CodeRef ) { if (PositiveOrZeroInt->check($expr)) { fun { $expr == ArrayRef->of($parameterized)->assert_return($_)->@* } } elsif ('TypeVar' eq $expr->parent->name) { fun { $TypeVarRegistry{$expr->parameters->[0]} = ArrayRef->of($parameterized)->assert_return($_)->@*; 1 } } elsif ('TypeVarExpr' eq $expr->parent->name) { fun { my $eval; # world's worst symbolic expr parser if ( my ($var1, $op, $var2) = $expr->parameters->[0] =~ /(\w+)(\+)(\w+)/ ) { $eval = $TypeVarRegistry{$var1} + $TypeVarRegistry{$var2}; } else { die; } $eval == ArrayRef->of($parameterized)->assert_return($_)->@* } } else { die } }, ); __PACKAGE__->meta->add_type($_) for $TypeVar, $TypeVarExpr, $SizedArray; __PACKAGE__->meta->make_immutable; } use MyTypes qw(SizedArray TypeVar TypeVarExpr); fun add_ok( SizedArray[type => Str, length => TypeVar["m"]] $A, SizedArray[type => Str, length => TypeVar["n"]] $B → SizedArray[type => Str, length => TypeVarExpr["m+n"]] ) { [$A->@*, $B->@*] } use Data::Dx; Dx add_ok([qw(e r t)], [qw(e r t)]); fun add_broken( SizedArray[type => Str, length => TypeVar["m"]] $A, SizedArray[type => Str, length => TypeVar["n"]] $B → SizedArray[type => Str, length => TypeVarExpr["m+n"]] ) { [$A->@*, $B->@*, 'this must not work'] } use Data::Dx; Dx add_broken([qw(a s d f)], [qw(g h j k)]); 

How to install CRISPRCasFinder (for detection of CRISPRs and cas genes)

https://blogs.perl.org/users/glycine/2024/05/how-to-install-crisprcasfinder-for-detection-of-crisprs-and-cas-genes.html

I need to find the distance between two GPS coordinates. Geo::Calc does this effectively, but it hasn't been updated in over a decade, and, more seriously, it adds a significant startup delay just by loading the module:

root@1c8fb16bd7bb:/app# time perl -e 'use v5.38' real 0m0.005s user 0m0.001s sys 0m0.004s root@1c8fb16bd7bb:/app# time perl -e 'use v5.38; use Geo::Calc' real 0m0.679s user 0m0.631s sys 0m0.048s 

submitted by /u/tyrrminal
[link] [comments]

PTS 2024 - day 1

https://blogs.perl.org/users/leo_lapworth/2024/04/pts-2024---day-1.html

Perl CPU Benchmark

Changes for 2.6 - 2024-04-25

• Custom benchmark improvements.
• Fix BSD tar xattr.

Code coverage metrics for Perl

Changes for 1.41

• Spelling, linting and formatting changes

load Data::Dumper output, including self-references

Changes for 0.01 - 2024-04-25

Experimental features made easy

Changes for 0.032 - 2024-04-25T22:30:41+01:00

• Add the newly-stable features to stable.pm - extra_paired_delimiters, const_attr, for_list

This week in PSC (145)

https://blogs.perl.org/users/psc/2024/04/this-week-in-psc-145.html

Hi! Asking for a wisdom here...

We have a module that modifies signal handler $SIG{__DIE__} to log information and to die afterwards. Hundreds of scripts relied on this module which worked fine in perl 5.10.1.

Recently we had the opportunity to install several Perl versions but unfortunately a large number of scripts that used to work with Perl 5.10.1 now behave differently:

• Failed in 5.14.4: /home/dev/perl-5.14.4/bin/perl -wc test.pl RECEIVED SIGNAL - S_IFFIFO is not a valid Fcntl macro at /home/dev/perl-5.14.4/lib/5.14.4/File/stat.pm line 41
• Worked without changes in 5.26.3: /home/dev/perl-5.26.3/bin/perl -wc test.pl test.pl syntax OK
• Worked without changes in 5.38.2: /home/dev/perl-5.38.2/bin/perl -wc test.pl test.pl syntax OK

Many of the scripts can only be updated to 5.14.4 due to the huge jumps between 5.10 and 3.58; But we are stuck on that failures.

Was there an internal Perl change in 5.14 which cause the failures but works on other recent versions without any update on the scripts?

Cheerio!

submitted by /u/Longjumping_Army_525
[link] [comments]

Perl Weekly Challenge 266: X Matrix

https://blogs.perl.org/users/laurent_r/2024/04/perl-weekly-challenge-266-x-matrix.html

Sanity-check calling context

Changes for 0.04

• (no code changes)
• Switched to MIT license.
• Switched README from POD to Markdown.
• Removed Travis CI.

Sort lines of text by a SortKey module

Changes for 0.001 - 2024-03-07

• First release.

Sort lines of text by a Comparer module

Changes for 0.002 - 2024-03-07

• No functional changes.
• [doc] Mention some related links.

An assortment of date-/time-related CLI utilities

Changes for 0.128 - 2024-03-07

• [clis strftime, strftimeq] Use localtime() instead of gmtime(). We can still show UTC using "TZ=UTC strftime ...".

Common Security Advisory Framework

Changes for 0.22 - 2024-04-23

• First public release of CSAF

Study build or test output over a range of git commits

Changes for 0.21 - 2024-04-23T05:11:47Z

• Devel::Git::MultiBisect: introduce method 'set_outside_targets()' to handle case bisection exercises a test file located outside the git checkout of the source code.

Bitcoin cryptography in Perl

Changes for 2.004

• Improvements
• Breaking changes

Read Perl’s symbol table programmatically

Changes for 0.12

• Update license in Makefile.PL. (Thank you, @mavit!)

Perl Weekly Challenge 266: Uncommon Words

https://blogs.perl.org/users/laurent_r/2024/04/perl-weekly-challenge-266-uncommon-words.html

Read Perl’s symbol table programmatically

Changes for 0.11

• (No code changes.)
• Remove Travis CI.
• Change README to Markdown.
• Re-license under the MIT License.

Perl implementation for the Prague Markup Language (PML).

Changes for 2.25 - 2024-04-23T15:11:42Z

• Fix saving relative paths to resource files.

Create a DateTime object from a Genealogy Date

Changes for 0.06 - 2024-04-23T08:28:40Z

• Handle entries which have the French 'Mai' instead of the English 'May' Some messages were printed even in quiet mode Handle '1517-05-04' as '04/05/1517'

Show context around syntax errors and exceptions

Changes for v0.4.0 - 2024-04-23

• fixes
• new features
• improvements
• other

I understand that many disagree with this statement, but it really makes it easier to build distributions for people who not monks. Wish the documentation was more detailed

submitted by /u/ReplacementSlight413
[link] [comments]

Sah schemas related to BCA (Bank Central Asia) bank

Changes for 0.002 - 2024-04-03

• Rename module/dist Sah-Schema{s,Bundle}-* following rename of Sah-Schema{s,Bundle} (for visual clarity and consistency with naming of other bundles).

search nested hashref/arrayref structures using JSONPath

Changes for 1.0.5 - 2024-04-22T16:10:46-05:00

simulating paper and pencil techniques for basic arithmetic operations

Changes for 0.01 - 2024-04

• First version, with the four basic operations, plus square-root, GCD and radix conversion. And HTML rendering

Use a type to validate values in a deep comparison.

Changes for 1.0.1 - 2024-04-22

• Add Test2::Tools::Type

An open source web-based network management tool.

Changes for 2.076000 - 2024-04-22

• NEW FEATURES
• ENHANCEMENTS
• BUG FIXES

Silverpeak Orchestrator REST API client library

Changes for 0.011000 - 2024-04-22T17:58:39+02:00

• add support for version 9.3+ API endpoints

A module that performs semantic similarity in PXF/BFF data structures and beyond (JSON|YAML)

Changes for 0.07 - 2024-04-22T00:00:00Z

• Excluded keys with {} or [] values (e.g. subject.vitalStatus: {})
• Precompiled regex patterns where possible
• Schema validation errors related to weights are now directed to STDERR
• Added support for variables with non-word characters (e.g., "Survey.Timestamp.1")

Announcing The London Perl and Raku Workshop 2024 (LPW)

https://blogs.perl.org/users/lpw/2024/04/announcing-the-london-perl-and-raku-workshop-2024-lpw.html

Pango style markup formatting

Changes for 0.036 - 2024-04-22

• Introducing struts. Update SYNOPOSIS example to modern PDF::API2 conventions. Fix/enhance drawing of brackgrounds. Fix problem with wrongly calculated underlining.

My environment is perl/5.18.2 on CentOs 7

I'm trying to use a SWIG generated module in perl, which has a c plus plus backend. The backend.cpp sets an environment variable, $MY_ENV_VAR =1

But when I try to access this in perl, using $ENV{MY_ENV_VAR} this is undef.

However doing something like print echo $MY_ENV_VAR works

So the variable is set in the process, but it's not reflected automatically since nothing updates the $ENV data structure.

I'm assuming it may work using some getEnv like mechanism, but is there a way to reset/ refresh the $ENV that it rebuilds itself from the current environment?

submitted by /u/sarcasmwala
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By default cpanm drops Perl modules into ~/perl5. How do I tell cpanm to use a different location, such as ~/.local/share/perl5 instead?

submitted by /u/s-ro_mojosa
[link] [comments]

Get stock and mutual fund quotes from various exchanges

Changes for 1.61_01 - 2024-04-21T17:50:16-07:00

• YahooWeb.pm - Issue #377. Modified YahooWeb to account for changes from Yahoo.

Sah schemas related to SortKey

Changes for 0.002 - 2024-03-07

• Rename module/dist Sah-Schema{s,Bundle}-SortKey.

Perl Data Language

Changes for 2.088 - 2024-04-22

• Slatec::ch{ic,sp} work arrays now [t]
• add Slatec::bvalu
• add Func::{pchip,spline}, and a demo
• add Ufunc::diff2
• extra ) on end of Pars now an error
• PP dim sizes can be =CALC(...) instead of explicit RedoDimsCode
• PP add loop(n=start:end:inc) idiom to stop not at end and have non-1 inc
• updated README.md - thanks @falsifian
• support T_PTROBJ in typemap

an interactive plotting widget and library for PDL and Prima

Changes for 0.21 - 2024-04-22

• demo now only loads Prima when run, reducing perldl problems

demonstrate PDL::Graphics::PLplot capabilities

Changes for 0.84 - 2024-04-22

• add perldl demo
• fix plFreeGrid to use free that matches the allocator
• pl{Alloc,Free}{,2d}Grid error if not match allocating and freeing routine
• minimum PDL 2.083 due to output OtherPars