https://github.com/xsawyerx/xs-fun

XS is fun: a simple and easy tutorial on writing Perl XS
https://github.com/xsawyerx/xs-fun

c documentation perl tutorial xs

Last synced: about 2 months ago
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XS is fun: a simple and easy tutorial on writing Perl XS

• Host: GitHub
• URL: https://github.com/xsawyerx/xs-fun
• Owner: xsawyerx
• Created: 2013-09-11T21:11:32.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2017-08-18T07:47:15.000Z (over 7 years ago)
• Last Synced: 2024-10-18T23:15:06.606Z (2 months ago)
• Topics: c, documentation, perl, tutorial, xs
• Language: C
• Size: 181 KB
• Stars: 143
• Watchers: 29
• Forks: 35
• Open Issues: 3
• Metadata Files:
  • Readme: README.md

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README

        
XS Fun

======

Any XS guru will tell you XS is easy. I've heard this many times. While it may

be true, I realized one thing: XS can be scary.

The purpose of this guide is to make XS fun. Yes, fun. Try it out, if you won't

feel as exhilarated as I do as you make your way up the stairs of XS

knowledge, I will fully reimburse your tuition.

Ground rules

------------

1. We use a template instead of [`h2xs`](http://perldoc.perl.org/h2xs.html).

2. We do not bundle an additional C library.

3. We assume you have at least Perl 5.14.2.

These are the best bits of advice I've received so far and they've proven

to be crucial.

`h2xs` is old and crufty, and thus far seems more like a hurdle. Instead,

this guide includes a skeleton for each exercise that you can copy and use

each time you start a new project.

Bundling additional C libraries requires hacks with `ExtUtils::MakeMaker`

(which is a war in and of itself), including tab character nightmares and

additional recursive Makefiles. One way around the obvious "you need to have

this library installed" problem is to provide an `Alien` package. This guide

might go over it at some point but makes no promises.

Eliminating the use of `h2xs` and bundling any C libraries we use (that

we haven't written by ourselves) removes a lot of needless complexity.

Perl 5.14.2 is prevalent enough to consider it a starting ground, though at

this point it is not yet necessarily important.

Relevant resources

------------------

* [perlxs](http://perldoc.perl.org/perlxs.html) (`perldoc perlxs`)

* [perlapi](http://perldoc.perl.org/perlapi.html) (`perldoc perlapi`)

More advanced or specialized resources

--------------------------------------

* [General index](http://perldoc.perl.org/index-internals.html)

* [perlxstypemap](http://perldoc.perl.org/perlxstypemap.html) (`perldoc perlxstypemap`)

* [perlhack](http://perldoc.perl.org/perlhack.html) (`perldoc perlhack`)

* [perlhacktips](http://perldoc.perl.org/perlhacktips.html) (`perldoc perlhacktips`)

* [perlhacktut](http://perldoc.perl.org/perlhacktut.html) (`perldoc perlhacktut`)

* [perlguts](http://perldoc.perl.org/perlguts.html) (`perldoc perlguts`)

* [perlintern](http://perldoc.perl.org/perlintern.html) (`perldoc perlintern`)

* [perlinterp](http://perldoc.perl.org/perlinterp.html) (`perldoc perlinterp`)

* [perlcall](http://perldoc.perl.org/perlcall.html) (`perldoc perlcall`)

* [perlsource](http://perldoc/perl.org/perlsource.html) (`perldoc perlsource`)