Clojurians Log v2

Looks like this does it:

(m/rewrite
    [:or
     [:= :foo 123]
     [:= :foo 456]]
    [:or [:= ?a !b] . [:= ?a !b] ...]
    [:one-of ?a [!b ...]])

What’s the best way to represent repetition where one sub-element in the repeated clause is the same, while the other can differ? Example:

;; would match, because of repeated :foo
  [:or
   [:= :foo 123]
   [:= :foo 456]]

  ;; would not match
  [:or
   [:= :foo 123]
   [:= :BAR 456]]

(m/rewrite
  [:or
   [:= :foo 123]
   [:= :foo 456]]
  [:or . [:= ?a !b] ...]
  [:one-of ?a [!b ...]])