Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Scala Design Patterns

You're reading from   Scala Design Patterns Write efficient, clean, and reusable code with Scala

Arrow left icon
Product type Paperback
Published in Feb 2016
Publisher
ISBN-13 9781785882500
Length 382 pages
Edition 1st Edition
Languages
Arrow right icon
Author (1):
Arrow left icon
Ivan Nikolov Ivan Nikolov
Author Profile Icon Ivan Nikolov
Ivan Nikolov
Arrow right icon
View More author details
Toc

Table of Contents (14) Chapters Close

Preface 1. The Design Patterns Out There and Setting Up Your Environment 2. Traits and Mixin Compositions FREE CHAPTER 3. Unification 4. Abstract and Self Types 5. Aspect-Oriented Programming and Components 6. Creational Design Patterns 7. Structural Design Patterns 8. Behavioral Design Patterns – Part 1 9. Behavioral Design Patterns – Part 2 10. Functional Design Patterns – The Deep Theory 11. Functional Design Patterns – Applying What We Learned 12. Real-Life Applications Index

The interpreter design pattern


In modern programming, we sometimes have to deal with problems from well-understood and well-defined domains. In some cases, it makes sense to represent the domain with a language, which could then make it easy to solve problems using an interpreter. This is exactly what the interpreter design pattern is useful for:

Note

It specifies how to evaluate sentences in a language by representing it using classes and building syntax trees to evaluate the language expressions.

The interpreter design pattern makes use of the composite design pattern as well. Some common uses of interpreters are for language parsing, protocols, and so on.

Class diagram

Creating a language and grammar is a complicated task and before getting into it, developers should be confident that it is actually worth the effort. It requires a really good understanding of the domain that is being modeled and usually takes some time. In this section, we will present the class diagram concerning the interpreter...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime