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Created a very minimal lisp tokenizer in Rust (programming.dev)
submitted 4 months ago by to c/rust@lemmy.ml
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Hello,

I have been learning rust and want to make something exciting so I though why not build a Lisp compiler in Rust B)

so here what I did today. https://gist.github.com/anon2834678263/bcaa06e934f7b478be79203553f170ee

the tokenizer isn't ready and might have horrible bugs but at least I got comfortable declaring immutable variable by default, not surrounding stuff with parentheses unnecessarily. oh and also Enums which is most powerful thing in rust as people say.

I am still not satisfied though since the code looks more like C than Rust xD

maybe some experienced people can correct me :)

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[–] [S] 3 points 4 months ago (1 child)

Thank you kind stranger!

I will take notes and will make these changes. after improving this I will move to create AST which would be more fun! again thank :)

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  • [–] 2 points 4 months ago

    FYI once you're done you should take a look at some of the parsing libraries out there. Some I'd recommend looking at:

    • pest - grammar based
    • lalrpop - more traditional LR(1) parser generator
    • winnow or nom - parsing combinators, probably the easiest of these to use (and most flexible)
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