I'm trying to write a macro that expands from this:
(product-context [n rule0, m rule1)]
(rule-maker2 (+ n m)) rule3))
Into this (assume that conc-fn and conc-products are functions):
(fn [tokens]
(if-let [[remainder# n m] (conc-products [rule0 rule1] tokens)]
(conc-fn [(rule-maker2 (+ n m)) rule3] remainder#)))
...but I can't figure out how to change [n rule0 m rule1] to (if-let
[[remainder# n m] (conc-products [rule0 rule1] tokens)] ...). I tried
reading the implementations of some core macros like if-let, but it
didn't help because if-let and when-let require one binding.
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