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0 pointsreikonomusha6y ago0 comments

They did parse it, albeit indirectly, by Racket’s reader. Co2 is a language, not a bunch of function calls, so it’s not quite the same as building a library in your favorite language. The article even gives examples of new syntax they produced.

Parsing Lisp in Lisp is so easy because it’s free.

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7 comments · 3 top-level

cheez6y ago· 2 in thread

https://github.com/dustmop/co2/blob/master/compile.scm#L3689

Indeed, it's almost trivial.

lispm6y ago

you just need to implement read-syntax ...

cheez6y ago

I wasn't being sarcastic, it was very simple the way they've done it. https://docs.racket-lang.org/reference/Reading.html#%28def._...

colejohnson666y ago· 2 in thread

> Parsing Lisp in Lisp is so easy because it’s free.

Are there any other languages that have this feature? I.E. where the data and the code are the same syntax?

guicho2718286y ago

Well, if there is new such language then it would be eventually called a lisp dialect.

Rebol springs to mind.

lispm6y ago

> Parsing Lisp in Lisp is so easy because it’s free.

You just have to implement an s-expression reader.

Plus an interpreter, compiler or a code walker, which can actually parse the Lisp code.

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