cljs.repl.browser/firefox-st-el->frame

(defn firefox-st-el->frame
  [repl-env st-el opts]
  (let [[function flc] (if (re-find #"@" st-el)
                         (string/split st-el #"@")
                         [nil st-el])
        [file line column] (parse-file-line-column flc)]
    (if (and file function line column)
      {:file (parse-file repl-env file opts)
       :function (firefox-clean-function function)
       :line line
       :column column}
      (when-not (string/blank? function)
        {:file nil
         :function (firefox-clean-function function)
         :line nil
         :column nil}))))