How to make a REPL-based DSL using rust (sh.itjust.works)

submitted 1 week ago by remustan37@sh.itjust.works to c/rust@programming.dev

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Is there any guide, tutorial or other resource that helps in making a REPL-based DSL using rust

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[-] Ephera@lemmy.ml 1 points 1 week ago

Clap has an entry in their cookbook for a REPL:

Derive-API: https://docs.rs/clap/latest/clap/_cookbook/repl_derive/index.html
Builder-API: https://docs.rs/clap/latest/clap/_cookbook/repl/index.html

Of course, this works best for simple stuff, where you just have individual commands to parse.

For a Python-style REPL with a full-fledged language attached, I would not use that approach.
There's probably some REPL languages implemented in Rust already out there, where you can look at their approach.

this post was submitted on 06 Jun 2026

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