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So, the REPL mentioned in the article differs from, say, the Julia REPL[0]? Is it simply using the same term for slightly different things?

[0] https://docs.julialang.org/en/v1/stdlib/REPL/

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One of the other comments in this thread links to: https://mikelevins.github.io/posts/2020-12-18-repl-driven/ which makes a distinction between "having a REPL" and "supporting repl-driven programming". Modern languages which have a REPL generally don't support the sort of repl-driven programming they refer to. Julia's Revise.jl [1] supports one way of repl-driven programming, and it is in fact the recommended way of doing Julia, but from my understanding it's still very different from the Lisp ways.

[1] https://timholy.github.io/Revise.jl/stable/

The Julia REPL front end is written in Scheme IIRC

I believe it's Julia's current default parser that's written in a Scheme, the REPL is a normal Julia standard library written in Julia itself: https://github.com/JuliaLang/julia/blob/master/stdlib/REPL/s...

also we are very close to moving Julia's parsing (but not lowering) to pure Julia as well.

OK thanks for the correction!

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