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Raku Fundamentals

A Primer with Examples, Projects, and Case Studies

  • Book
  • © 2020

Overview

Authors:
  1. Moritz Lenz

    1. Fürth, Germany

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  • Helps you begin coding with Raku using hands-on examples

  • Shows how to work with persistent storage

  • Teaches you how to write applications such as a Unicode search tool and usage graph

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Table of contents (13 chapters)

  1. Front Matter

    Pages i-xvii
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  2. What Is Raku?

    • Moritz Lenz
    Pages 1-6

  3. Running Rakudo

    • Moritz Lenz
    Pages 7-12

  4. Formatting a Sudoku Puzzle

    • Moritz Lenz
    Pages 13-29

  5. Datetime Conversion for the Command Line

    • Moritz Lenz
    Pages 31-51

  6. Testing say( )

    • Moritz Lenz
    Pages 53-57

  7. Silent-Cron: A Cron Wrapper

    • Moritz Lenz
    Pages 59-80

  8. Stateful Silent-Cron

    • Moritz Lenz
    Pages 81-89

  9. Review of the Raku Basics

    • Moritz Lenz
    Pages 91-97

  10. Parsing INI Files Using Regexes and Grammars

    • Moritz Lenz
    Pages 99-127

  11. A File and Directory Usage Graph

    • Moritz Lenz
    Pages 129-152

  12. A Unicode Search Tool

    • Moritz Lenz
    Pages 153-160

  13. Creating a Web Service and Declarative APIs

    • Moritz Lenz
    Pages 161-176

  14. What’s Next?

    • Moritz Lenz
    Pages 177-181

  15. Back Matter

    Pages 183-186
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Keywords

About this book

Gain the skills to begin developing Raku applications from the ground up in this hands-on compact book, which includes a foreword from Larry Wall, creator of Perl. You’ll learn enough to get started building with Raku, using Raku's gradual typing, handy object orientated features, powerful parsing capabilities, and human-usable concurrency. This book has been updated to include the latest version of Raku based upon the Perl 6.d major version which includes over 3,400 new commits in its specification.  

After a short introduction, each chapter develops a small example project, explaining the Raku features used. When the example is done, you’ll explore another aspect, such as optimizing further for readability or testing the code. Along the way you’ll see Raku basics, such as variables and scoping; subroutines; classes and objects; regexes; and code testing.  

When you’ve mastered the basics, Raku Fundamentals moves onto more advanced topics to give you a deeper understanding of the language. You’ll learn, amongst other things, how to work with persistent storage, how to generate good error messages, and how to write tricky applications such as a file and directory usage graph and a Unicode search tool. 

What You Will Learn

  • Get coding with latest version of Raku
  • Work on several hands-on examples and projects
    • Integrate Python libraries into your Raku-based programs
  • Parse INI files using regexes and grammars
  • Build a date-time converter 
  • Carry out refactoring and other automated tests

    • Who This Book Is For 

    If you already know one or more programming languages, and want to learn about Raku, then this book is for you.

    Authors and Affiliations

    • Fürth, Germany

      Moritz Lenz

    About the author

    Moritz Lenz is a Perl 6, now Raku, core developer. He has contributed significantly to the official test suite, the Rakudo Perl compiler, and is the initiator of the official Raku documentation project. He has also authored several modules, and runs infrastructure for the Raku community. In his day job, he develops Perl 5 and Python code, and maintains a continuous delivery system for his employer.

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