On 9/21/19 10:15 PM, Jonathan Simpson wrote:
Given this macro that I'm experimenting with:
(syntax-parse #'(1 2 2 a 2 2 b 2 c) [(1 (~seq n:nat ...+ x) ...) #'((n
... x) ...)])
How would I change it so that it returns #'(2 2 a 2 2 b 2 c) instead of
#'((2 2 a) (2 2 b) (2 c)) ?
I don't want the parens around the individual sequences that I'm
matching, but I haven't figured out a way to do this without using a
pattern that forces me to add them in the body of the syntax-parse
clause. How can I group the n and x pattern variables in the body
without adding parens around them?
Use `~@` in the template:
#'((~@ n ... x) ...)
Ryan
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