Skip to main content

"Parsing with Perl 6 Regexes and Grammars" mega book review

This is Moritz Lenz's second book release. One could argue that you  have to tackle the first one, "Perl 6 Fundamentals" before progressing to this one. This is not the case, however, as the book is written in such a way that it can be consumed independently without requiring any kind of knowledge in Perl 6.Saying that, it does however dedicate a chapter to getting started with Per l 6, just enough to ready you to work with its regular expressions.That aside, the author does indeed go into detail explaining the Perl 6 features used in the examples.
A question that I also posed to Moritz was whether the knowledge obtained from studying this book is transferable to Perl5 or to other languages, or, is it rather unique to Perl6?
Moritz's reply was that
the general skills/knowledge is transferable, but p6 regexes and grammars offer much awesome stuff that other implementations simply don't have.
So while the material is only applicable to Perl 6, since its implementation and the tricks you can pull off go beyond PCRE, previous experience with regular expressions in general will certainly make the material easier to follow.
About the author himself, Moritz is a well known figure of Perl and especially Perl 6, being a contributor to the Rakudo Perl 6 compiler as well as the initiator of the official Perl 6 documentation project. I Programmer's first contact with him was back in 2012(!) when I interviewed him about "Perl 6 and Parrot", at a time when Parrot was Perl 6's primary VM and well ahead of any plans for Rakudo.
The interview does not stop there though, but also investigates the differences, cultural or otherwise between Perl 5 and Perl 6 as well as the then yet-to-be-announced regular expression capabilities in Perl 6. It's worth recalling relevant snippets of this interview:  

Comments

Popular posts from this blog

Book Review : How To Create Pragmatic, Lightweight Languages

At last, a guide that makes creating a language with its associated baggage of lexers, parsers and compilers, accessible to mere mortals, rather to a group of a few hardcore eclectics as it stood until now.

The first thing that catches the eye, is the subtitle:

The unix philosophy applied to language design, for GPLs and DSLs"
What is meant by "unix philosophy" ?. It's taking simple, high quality components and combining them together in smart ways to obtain a complex result; the exact approach the book adopts.
I'm getting ahead here, but a first sample of this philosophy becomes apparent at the beginnings of Chapter 5 where the Parser treats and calls the Lexer like  unix's pipes as in lexer|parser. Until the end of the book, this pipeline is going to become larger, like a chain, due to the amount of components that end up interacting together.

The book opens by putting things into perspective in Chapter 1: Motivation: why do you want to build lan…

Deep Angel-The AI of Future Media Manipulation

Undeniably, we live in the era of media manipulation. Such powerful and accessible tools exist today that nearly everyone can do it. Now add to this collection Deep Angel, an artificial intelligence that can erase objects from photographs and videos.

I was notified of Deep Angel around the time I was watching Kill Switch, a futuristic and dystopic movie about our Earth getting cloned in order to suck the resources of the cloned planet, something that would sustain our world's energy needs for at least another millennium. To cut a long story short... full article on i-programmer.info

SAP's Creating Trustworthy and Ethical Artificial Intelligence

With the ink hardly dry on the pages of the EU Ethical AI Guidelines manifest, a free online course exploring the issues they raise is already in prospect on the openSAP platform. Run by members of the very same group, the European Union’s High-Level Expert Group on Artificial Intelligence, who wrote the guidelines and in cooperation with SAP's online education platform, a course with the titleCreating Trustworthy and Ethical Artificial Intelligence has been made accessible to anyone with an interest on AI or ML:
full article on i-programmer.info