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Re: Understanding `symbol??` macro from okmij.org
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From: |
Jean Abou Samra |
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Subject: |
Re: Understanding `symbol??` macro from okmij.org |
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Date: |
Thu, 14 Mar 2024 19:01:07 +0100 |
> Ah, and I though that syntax-rules was always written in term of
> syntax-case. I see. Thank you!
Yeah, it most most often is these days, but historically, syntax-rules was
invented before syntax-case. IIRC, the choice to include syntax-case in R6RS
was controversial because syntax-rules was expressed in terms of different
low-level abstractions in some Scheme implementations ("explicit substitutions"
or something like that).