Suggestion to implementation of coercion string->ratio in clojure

[wandersoncferreira]

It makes sense to have this kind of solution to provide a coercion to ratio in spec-tools?

(defn string->ratio [x]
  (let [x' (clojure.edn/read-string x)]
    (if (ratio? x')
      x'
      x)))

Only the core of the function, all the safeguards would be provided. The question is more related to the safety of using a read-string function to evaluate arbitrary string values. As noted by Clojure.docs read-string clojure.edn would be appropriate.