Perl 6 Fundamentals: A Primer with Examples, Projects, and Case Studies

by Moritz Lenz

1. What is Perl 6?1.1 Perl 5, the Older Sister1.2 Library Availability1.3 Why Should I Use Perl 6?2. Running Rakudo Perl 62.1 Installers2.2 Docker2.3 Building from Source2.4 Testing your Rakudo Star Installation3. Formatting a Sudoku Puzzle3.1 Making the Sudoku Playable3.2 Shortcuts, Constants, and more Shortcuts3.3 IO and other Tragedies3.4 Get Creative!4. Datetime Conversion for the Command Line4.1 Libraries To The Rescue4.2 DateTime Formatting4.3 Looking the Other Way4.4 Dealing With Time4.5 Tighten Your Seat Belt4.6 MAIN magic4.7 Automatic Tests4.8 Summary5. Testing say()5.1 Summary6. Silent Cron, a Cron Wrapper6.1 Running Commands Asynchronously6.2 Implementing Timeouts6.3 More on Promises6.4 Possible Extensions6.5 Refactoring and Automated TestsRefactoringMocking and TestingImproving Reliability and TimingInstalling a Module6.6 Summary7. Stateful Silent Cron7.1 Persistent Storage7.2 Developing the Storage Backend7.3 Using the Storage Backend7.4 Room for Expansion7.5 Summary8. Review of the Perl 6 Basics8.1 Variables and Scoping8.2 Subroutines8.3 Classes and Objects8.4 Concurrency8.5 Outlook9. Parsing INI files using Regexes and Grammars9.1 Regex BasicsCharacter ClassesQuantifiersAlternatives9.2 Parsing the INI primitives9.3 Putting Things Together9.4 Backtracking9.5 Grammars9.6 Extracting Data from the Match9.7 Generating Good Error MessagesFailure is NormalDetecting Harmful FailureProviding ContextShortcuts for Parsing Matching Pairs9.8 Write Your Own Grammars9.9 Summary10. A File and Directory Usage Graph10.1 Reading File Sizes10.2 Generating a Tree Map10.3 Flame Graphs10.4 Functional Refactorings10.5 More Language Support for Functional Programming10.6 More Improvements10.7 Explore!10.8 Summary11. A Unicode Search Tool11.1 Code Points, Grapheme Clusters and Bytes11.2 Numbers11.3 Other Unicode Properties11.4 Collation11.5 Summary12. Plotting Using and Matplotlib13. What's Next?

164 pages, Paperback

Published July 28, 2017

Reviews

[Arthur · Rating 4 out of 5]

I picked this book for being quite small in volume to read while in flight and was actually astonished by the fact so much was packed into the small book or maybe it's the conciseness of Perl as a language contributed to how much was covered in it.
Overall, Perl is a powerful modern multifaceted (OOP and Functional) language, very succinct and robust. Also, not at all intimidating.