RosettaCodeData/Task/Letter-frequency/TXR/letter-frequency-1.txr
2015-11-18 06:14:39 +00:00

9 lines
226 B
Text

@(do (defvar h (hash :equal-based)))
@(repeat)
@(coll :vars ())@\
@{letter /[A-Za-z]/}@(filter :upcase letter)@\
@(do (inc [h letter 0]))@\
@(end)
@(end)
@(do (dohash (key value h)
(format t "~a: ~a\n" key value)))