© Kelt Dockins 2017

Kelt Dockins, Design Patterns in PHP and Laravel, 10.1007/978-1-4842-2451-9_18

18. Interpreter

Kelt Dockins1 

(1)Dolph, Arkansas, USA

$> git checkout interpreter

Intent

Given a language, define a representation for its grammar along with an interpreter that uses the representation to interpret sentences in the language.1

Applications

There are some patterns you might never use: flyweight, singleton, and this one. I am going to cover it anyway. Just in case. I have been wrong before. This chapter is a tad bit more theoretical than others. To understand the interpreter pattern, I need to talk first about language and grammar. Understanding how to work with grammar will make you sound more intelligent to others. This also happens ...

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