Perl tutorials and courses
- Perl Tutorial just a plain Perl tutorial. Nothing fancy.
- Beginner Perl Maven video course slidecast of the training material.
- Advanced Perl Maven video course mixed slidecasts, screencasts and plain articles.
- Test Automation using Perl for people who really want to sleep well.
Modern Perl Web Frameworks
- Mojolicious light-weight web framework with rainbows and unicorns.
- Perl Dancer light-weight web framework to rock.
- Catalyst The MVC web framework of Perl.
- PSGI/Plack, the low-level superglue between Perl web application frameworks and web servers.
- CGI, the Common Gateway Interface, for old-school web applications.
Object Oriented Perl
- OOP, the classic way to write Object Oriented Perl code.
- Moo, the Minimalist Object Oriented system for Perl.
- Moose, the 'post modern' Object Oriented system for Perl.
Other Series
- Perl and MongoDB, the NoSQL database used in Perl programs.
- AnyEvent, asynchronous programming.
- Net::Server the framework to build TCP/IP servers.
- MetaCPAN - articles for CPAN users, CPAN authors, client developers, and MetaCPAN developers.
- Perl Maven TV Show is a collection of interviews with Perl developers.
- SVG - Scalable Vector Graphics
Projects and Collections
- The search.cpan.org cloning project - Implementing a CPAN search engine using Plack/PSGI with MetaCPAN back-end.
- Command line phonebook with MongoDB and Moo
- Indexing e-mails in an mbox
- Counter Examples Various solution on the simple task of building a counter.
- Becoming a co-maintainer of a CPAN module - refactoring a CPAN module
- Perl::Critic lint-like static analyzer for Perl.
- Implementing a Markua Parser in Perl 5
Code-Maven series
- Angular JS
- Ansible
- Flask, the Python microframework.
- Groovy, the programming language used for Jenkins pipelines.
- Handlebars the HTML templating system written in JavaScript.
- Java
- JavaScript
- Jenkins, the automation server used for Continuous Integration and Continuous Delivery.
- Linux
- NodeJS
- PHP
- Python
- Ruby
- SVG, Scalable Vector Graphics examples in JavaScript and Python.
Recent Articles
Compare the speed of Perl and Python regexes
After writing the article on comparing the speed of grep with Python regexes and arriving to the conclusiong that grep is 50-100 times faster I though, what about Perl?
Add attributes to Markua - round 1
The Markua specification has plenty of information about attributes that are key-value pairs attached to the elements of a Markua file. One can add attributes manually in a JSON-like format, but there are certain attributes that are created automatically.
An explicit attribute list looks like this:
{key_one: value1, key_two: value_two, key_three: "value three!", key_four: true, key_five: 0, key_six: 3.14}
An example of implicit attributes are {type: code, format: text} attached to resource that are decided base on the extension of the included file.
Let's start adding the implicit attributes to included files.
seek - move the position in the filehandle in Perl
In most of the cases we deal with text-files and read them sequentially from the beginning to the end, but sometimes we might need some more complex operations on files.
When you open a file for reading, the operating system maintains an internal variable, the current position in the file. Every read starts from this position and every read-operation updates the position.
The seekfunction provided by Perl allows you to move this position without actually reading the content of the file (so without the data transfer from the disk to the memory) and it also allows you to move the position backwards.
The accompanying tell function will always return the index of the current position in the file.