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Writing an interpreter—including interpreter components like a lexer and parser—is an illuminating challenge. We cover how to write an interpreter using Scala, but the theory easily translates to other languages.
Jun 15, 2015 · The process of breaking the input string into tokens is called lexical analysis. So, the first step your interpreter needs to do is read the input of characters and convert it into a stream of tokens. The part of the interpreter that does it is called a lexical analyzer, or lexer for short.
Aug 4, 2023 · Writing an interpreter from scratch is a challenging yet immensely rewarding endeavor. With a well-structured approach, a solid understanding of language concepts, and a passion for problem-solving, you can create a powerful interpreter that unlocks the potential of your chosen programming language.
In these pages, we will walk step-by-step through two complete interpreters for a full-featured language. I assume this is your first foray into languages, so I’ll cover each concept and line of code you need to build a complete, usable, fast language implementation.
Nov 3, 2023 · Building a Python compiler and interpreter. In this series of articles we will be implementing the Python programming language, from scratch, in Python. The end goal of this series is to explore and play around with the concepts and algorithms that are needed to implement a programming language like Python.
Dec 15, 2015 · Now, let’s manually build an AST for the expression 2 * 7 + 3 and pass it to our interpreter to see the visit method in action to evaluate the expression. Here is how you can do it from the Python shell:
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In this course, we will learn about compilers and AST interpreters and virtual machines. We will further explore basic expressions and variables in interpreters and learn about variables and environments.
