blogs with tips for Perl Programming 229 Perl Programming 2012-02-09T06:39:08 Neal Pointer barry.david.adams@googlemail.com Perl 2012-02-09T06:36:45

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ef38e90e56a2fee564d3b67d58d7899b Perl 6 Advent Calendar 2011-12-25T10:52:41

The kind elves who spend the rest of the year working in Santa’s shop to bring you more of Perl 6 each year would like to wish you a very warm and fuzzy Christmas vacation. December is always a special time for us, because we get to interact with you all through the interface of [...]

dfc808b082e6feaa2bf8e5ab421a0f9f Perl 6 Advent Calendar 2011-12-24T02:15:26

Hey look, it’s Christmas Eve! (Also, the palindrome of 42!) And today, we’re going to learn about multi subs, which are essentially synonyms (like any natural language would have). Let’s get started! An Informative Introduction multi subs are simply subroutines (or anything related to it, such as methods, macros, etc.) that start with the multi [...]

aa9115db1245ddf857aa866bf0748e8e Perl 6 Advent Calendar 2011-12-23T23:16:52

Perl 6 Idioms, and Idiomatic Perl 6 (Butterflies of the world, alight!) Perl is a richly expressive language, with a warm and playful community. When someone crafts a succinct way to solve a common problem, the Perl community often adopts that solution's phrasing as a idiom. (Other-times, the community recoils in horror and proposes a [...]

a1e079db4a9b5ba1af12219b7f7df448 Perl 6 Advent Calendar 2011-12-22T20:58:11

Today’s post is a follow-up. Exactly two years ago, Matthew Walton wrote on this blog about overloading operators: You can exercise further control over the operator’s parsing by adding traits to the definition, such as tighter, equiv and looser, which let you specify the operator’s precedence in relationship to operators which have already been defined. Unfortunately, at the time [...]

88b8692fd675770a1507676f89c9e57e Perl 6 Advent Calendar 2011-12-21T21:42:29

Last year flussence++ wrote a nice post about writing XMMS bindings for Perl 6 using the Native Call Interface. It has improved a bit since then, (at least NCI, I don’t know about XMMS), so let’s show it off a bit. To run the examples below you need a NativeCall module installed. Then add use NativeCall; at the [...]

faebdc309e5d39ceeb243b331550a511 Perl 6 Advent Calendar 2011-12-20T14:31:49

What is is possible with arrays and lists in Perl 6 is truly remarkable and was demonstrated here several times. But what about hashes? Superficially not much has changed. (Following Damian’s rule from PBP to name a hash variable in singular.) %song = Panacea => 'found a lover', Photek => 'ni ten ichi ryu'; say [...]

b520ce10b796c2d579cecffb063c20c1 Perl 6 Advent Calendar 2011-12-19T21:30:09

Some people are a bit afraid of the word “abstract”, because they’ve heard math teachers say it, and also, abstract art freaks them out. But abstraction is a fine and useful thing, and not so complicated. As programmers, we use it every day in different forms. The term is from Latin and means “to withdraw [...]

103ae1706dfe1f1bb0b9f4e9a582eb09 Perl 6 Advent Calendar 2011-12-18T22:49:25

In my previous article for the Perl 6 advent calendar, I looked at how we can use the meta-programming facilities of Rakudo Perl 6 in order to build a range of tools, tweak the object system to our liking or even add major new features “from the outside”. While it’s nice that you can do [...]

de791a38c9191548662bbf88ae2c1430 Perl 6 Advent Calendar 2011-12-17T20:26:00

Two years ago today, the Advent post was on making Mandelbrot sets in Perl 6. At the time, they were in black and white, slow to produce, Rakudo was prone to crashing, and the only user interface thing you could control was how big the resulting PPM file was. As they say, that was then. [...]

aeed3d0949599ed0a744bff3e21e457d Perl 6 Advent Calendar 2011-12-16T14:00:59

Perl 5 programmers that start to learn Perl 6 often ask me how to take a reference to something, and my answers usually aren’t really helpful. In Perl 6, everything that can be held in a variable is an object, and objects are passed by reference everywhere (though you don’t always notice that, because objects [...]

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