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borkdude/print_regex.clj

Created September 3, 2020 12:57
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Regex printing override
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print_regex.clj
(def ^:dynamic *print-config* nil)
(def old-method (get-method print-method java.util.regex.Pattern))
(defmethod print-method java.util.regex.Pattern [v ^java.io.Writer w]
(if *print-config*
(.write w (pr-str (tagged-literal 'regex (.pattern v))))
(old-method v w)))
(prn #"foo")
(binding [*print-config* true]
(prn #"foo"))
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