Anonymous user
Validate International Securities Identification Number: Difference between revisions
Validate International Securities Identification Number (view source)
Revision as of 06:51, 6 May 2019
, 5 years agoadd clojure
(Added Rust) |
(add clojure) |
||
Line 672:
USER></pre>
=={{header|Clojure}}==
<lang clojure>(defn luhn? [cc]
(let [sum (->> cc
(map #(Character/digit ^char % 10))
reverse
(map * (cycle [1 2]))
(map #(+ (quot % 10) (mod % 10)))
(reduce +))]
(zero? (mod sum 10))))
(defn is-valid-isin? [isin]
(and (re-matches #"^[A-Z]{2}[A-Z0-9]{9}[0-9]$" isin)
(->> isin
(map #(Character/digit ^char % 36))
(apply str)
luhn?)))
(use 'clojure.pprint)
(doseq [isin ["US0378331005" "US0373831005" "U50378331005" "US03378331005"
"AU0000XVGZA3" "AU0000VXGZA3" "FR0000988040"]]
(cl-format *out* "~A: ~:[invalid~;valid~]~%" isin (is-valid-isin? isin)))
</lang>
{{out}}
<pre>US0378331005: valid
US0373831005: invalid
U50378331005: invalid
US03378331005: invalid
AU0000XVGZA3: valid
AU0000VXGZA3: valid
FR0000988040: valid</pre>
=={{header|COBOL}}==
| |||