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  • Book Overview & Buying D Cookbook
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D Cookbook

D Cookbook

By : Adam Ruppe
5 (9)
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D Cookbook

D Cookbook

5 (9)
By: Adam Ruppe

Overview of this book

A recipe-packed reference guide filled with practical tasks that are concisely explained to develop and broaden the user's abilities with the D programming language. If you are an experienced programmer who is looking to explore a language that offers plenty of advantages over more established programming languages, this is the book for you. We assume that you are already familiar with general programming language basics, but you do not need to be a proficient user of D.
Table of Contents (21 chapters)
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D Cookbook
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
2
Index

Generating data structures from text diagrams


Data structures are often defined with text diagrams. Like domain-specific languages, D can parse these strings and generate data structure definitions at compile time. We'll briefly demonstrate the technique by writing a parser for a simple diagram.

How to do it…

Let's execute the following steps to generate data structures from text diagrams:

  1. Start by writing a regular program to parse the diagram into structured fields. For our diagram, we'll want to split it into lines and then split the data lines into individual fields. The name will be the text within and the length will be one byte per four characters.

  2. Take the structured data and generate the D code from it with string concatenation. Here, we'll build an anonymous structure with each field from the diagram, using simple integral types to match the size. Write out your code with pragma(msg) or at runtime while debugging until the code looks right.

  3. Use the mixin expression to compile your code...

CONTINUE READING
83
Tech Concepts
36
Programming languages
73
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D Cookbook
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