A little over ten years ago, when Perl 5.18 was approaching its release date, I released match::simple. This was mostly in response to the smartmatch operator (~~) being deprecated, but also a solution to the incredibly arcane rules for…
Quite a while ago, I blogged about how Perl projects should have websites to increase not only their visibility, but the visibility of Perl as a whole. Perl has had the CPAN and awesome websites like MetaCPAN and its…
Let’s play with overloading a little. (Article experimenting with overloading operators in Perl, explaining a safe way to cast an overloaded object to a number.)
Consider a simple module like this: package MyApp::Util::Maths; use strict; use warnings; use constant PI => 3.14159265358979; use constant EULER => 2.71828182845905; use base ‘Exporter’; our @EXPORT_OK = qw( PI EULER add ); our %EXPORT_TAGS = ( arithmetic =>…
One of the modules bundled with Type::Tiny is Type::Params, a module that allows you to validate subroutine signatures using type constraints. It’s one of the more popular parts of the suite. This article provides a few hints for using…
With my open source work, I’ve historically taken an approach which relies more on integration testing than unit testing, but with some of my newer projects, I’ve tried adopting principles from $paidwork and applying them to my free software. This…
Let’s look at the XSPF playlist format. It’s a pretty simple XML-based file format.
Consider the following fairly simple class, which creates a lookup object for month names…
This is a variant of SemVer which mostly meets all its rules, except for releases prior to 0.2.0, where we bend them slightly. It is my intention to use this versioning system for all open source software I develop from…
Eagle-eyed watchers of CPAN may have noticed that I’ve recently been releasing Type::Tiny development releases with version numbers 1.999_XYZ. Type::Tiny v2 is intended to be compatible with Type::Tiny v1. If you’ve used Type::Tiny v1, you shouldn’t need to change…
Firstly, I’m not planning on breaking compatibility with Type::Params. The new API would live under a different namespace, such as Type::Params2. The API for Type::Params is currently: use feature ‘state’; use Type::Params qw( compile compile_named_oo ); use Types::Standard -types; sub…
Moose is great, but it does introduce a slight performance hit to your code. In the more than 15 years since it was first released, hardware improvements have made this less of a problem than it once was. Even…
The lighting in my bedroom uses Philips Hue bulbs — specifically, the coloured ones. Last night, I decided it would be nice to set the three lights in my bedroom to cycle slowly through a set of warm colours using…
For letting me know my test coverage has increased by 0.00006%. (Seriously it’s a pretty cool service though.)…
I don’t usually take part in the Perl Weekly Challenge but one of this week’s challenges caught my eye. I thought it could be a fun thing to attempt and decided to use Zydeco to help solve it. The problem…
In algebra, there’s this pretty funky concept: And I was thinking if $f and $g were coderefs, what could $f + $g be?…
Today I released Zydeco::Lite, a re-implementation of Zydeco but just using standard Perl syntax. So for example, class { … } becomes class(sub { …});. This has the advantage of much faster compile time, similar run time speed, fewer dependencies,…
So I like to keep local copies of my blogs.perl.org blog posts as Atom entries, but noticed yesterday that I had a few gaps in my collection. The Atom feeds offered by blogs.perl.org only have the most recent articles though,…
Prompted by a recent question on PerlMonks, I’ve been thinking a bit recently on marshalling and unmarshalling Perl objects. If you’re happy using Data::Dumper’s format, then it’s trivial, but today we’re looking at JSON. If you just want to encode…
Mom is a shortcut for creating Moo classes (and roles). It allows you to define a Moo class with the brevity of Class::Tiny. (In fact, Mom is even briefer.) A simple example:…
