Sorry. I am primarily a schemer, so that's what I'm referring to.
Readtables and generic setters (as specified by SRFI-17: a bit limited compared to CL, as I understand it) are very common extensions, and there are several loop macros floating around, all inspired by CL.
We also technically took dynamic scope from CL, but most schemes only have R7RS dynamic scope, which isn't so much dynamic scope as it is a hack that looks a lot like dynamic scope if you squint.
Readtables and generic setters (as specified by SRFI-17: a bit limited compared to CL, as I understand it) are very common extensions, and there are several loop macros floating around, all inspired by CL.
We also technically took dynamic scope from CL, but most schemes only have R7RS dynamic scope, which isn't so much dynamic scope as it is a hack that looks a lot like dynamic scope if you squint.