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Creating a Markua Parser in Perl 5

A case study of Test Driven Development in Perl

Gábor Szabó

Test Driven Development is probably the best way to create maintainable code that you can change later without the fear of breaking things. This book follows the development of a Markua parser in Perl 5 using TDD.

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About

About

About the Book

Markua is Markdown-inspired format created by Peter Armstrong to write books. It is used by LeanPub, the company where this book is published. Heck, even this book is written using the Markua format.

LeanPub has its own Markua parser written in Ruby.

This book follows the development of a Markua parser written in Perl.

As a reader of this book you will learn how to develop an application using TDD - Test Driven Development. That is, before every change we are going to create a test-case.

You will see how to set up Continuous Integration (CI) and how to monitor the test coverage.

As every development process it won't be without mistakes and setback. We will certainly see bugs being introduced and then fixed. Imperfect code written and then refactored.

In a nutshell, you will be able to see first-hand many of the best practices of today's development process.

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Author

About the Author

Gábor Szabó

Gábor Szabó has been programming for more than 40 years in a number of languages and in various environments.

These days he usually helps companies improve their engineering practices by providing training, introducing test automation, CI/CD. Sometimes this includes building internal web sites. Gabor also loves explaining things and provides training to his corporate clients and also in the academia.

Gabor runs the Code Maven site and a number of its sub-site where he writes about technologies such as Python, Rust, Git, Continuous Integration, etc.

The first main language Gabor used was Perl and so he maintains the Perl Maven site and he is the chief editor of the Perl Weekly newsletter.

The books Gabor publishes are based on his course materials. They include lots of examples with detailed explanations. This way if you can't book a course with him, at least you can read the materials and learn by yourself.

If you have questions fell free to send him a message via LinkedIn.

Contents

Table of Contents

Preface

Changes

  1. v0.04
  2. v0.03 2018-03-29
  3. V0.02 2018-03-28
  4. v0.01 2018-03-24

Error reporting

Markua Parser

  1. Implementing a Markua Parser in Perl 5
  2. Start writing the Markua parser in Perl
  3. Creating Makefile.PL and a CPAN distribution for the Markua Parser
  4. Travis-CI for the Markua Parser project
  5. Add test coverage reporting with Coveralls to Markua Parser in Perl
  6. Enable Appveyor (CI on Windows) for the Perl 5 Markua Parser
  7. Process the 6 headers of Markua
  8. Refactor test cases of the Markua Parser in Perl 5
  9. Collecting errors while parsing Markua in Perl 5 - disregarding empty rows
  10. Get Coveralls to notify when test-coverage shrinks
  11. Consider everything not recognizable as a paragraph in Markua
  12. Markua resources: Include files
  13. Generate test expectations for the Markua parser
  14. Parse bulleted list in Markua
  15. Parse numbered list in Markua
  16. Release the Markua::Parser to CPAN
  17. Add attributes to Markua - round 1
  18. Test coverage report with Devel::Cover for the Markua Parser

Index

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