From Parse Tree to Evaluator (featuring Sarah Withee)

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Marianne Writes a Programming Language

Marianne Bellotti

13 episodes

1 week ago

Marianne Bellotti wants to understand how the people who design programming languages do what they do, so she's jumping right in and giving it a shot by writing her own language. Follow along as she struggles to understand parsers, lexers, grammars, gets philosophical about the nature of error handling and gets in way over her head too easily and too often.

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From Parse Tree to Evaluator (featuring Sarah Withee)

Marianne Writes a Programming Language

25 minutes 48 seconds

4 years ago

From Parse Tree to Evaluator (featuring Sarah Withee)

A parser generator like ANTLR won't handle evaluating programs written in your new language. You need to write the code for that yourself. Marianne explains how to build an AST from a parse tree, create an evaluation loop, and how esolangs (esoteric programming languages) make for great learning tools.