Practical Interpreter Construction
Practical Interpreter Construction
Learn How to Craft An Interpreter The Practical Way
About the Book
Despite the fact that interpreters are in every single computer system, only rare programmers are able to design and write them. Constructing and coding an interpreter needs different mental processes and experience. The programmer must understand the internals of the programming languages, compilers and the computer. This book is for programmers who have always wanted to learn to write their own interpreter but kept away because of dull, theory heavy and difficult to understand books. It is written by a pragmatic programmer using first person language with a theory-free attitude. By reading this book, you will learn tokenizing, parsing and finally interpreting source code. All of these separate parts of the interpreter give you different skills you can benefit from in your whole programming career.
Table of Contents
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Introduction
- Why You Need to Learn Writing Interpreter
- Audience
- How To Read This Book
- About The Author
- Code in The Book
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Chapter 1 - Motivation
- Interpreters Are Everywhere
- Is It That Difficult to Write an Interpreter?
- How We Will Make it Easy
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Chapter 2 - Parsing and Calculating Expressions
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Parsing Arithmetic Expressions
- The Magic in The Calculator
- PacMan Eating Characters: The Tokenizer
- Better Token Handling
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Parsing Boolean Expressions
- How Similar Arithmetic and Boolean Expressions
- A Generic Type for All Expressions
- Negative And Not Operators
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Parsing Arithmetic Expressions
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Chapter 3 - Beyond The Expressions: Programming Languages
- Essential Elements of A Programming Language
- Definition Standard For Programming Languages
- Data Structure For Language Constructs
- Elements and Container of the Abstract Syntax Tree
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Chapter 4 - Parsing Programming Language Constructs
- Statements and Code Blocks
- Strings
- Variables
- While Loop
- If-Else
- Arrays
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Functions
- Tokenizing Function Definition
- Parsing Function Definition
- Parsing Function Call
- Return Value of a Function
- Inline Functions
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Chapter 5 Expense Managemenet Using Our Interpreter
- Adding Expenses
- Reporting Expenses
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