SEDOLs: Difference between revisions

</pre>

=={{header|Wren}}==

{{libheader|Wren-str}}

{{libheader|Wren-fmt}}

<lang ecmascript>import "/str" for Char

import "/fmt" for Conv

var sedol = Fn.new { |s|

if (!(s is String && s.count == 6)) return false

var weights = [1, 3, 1, 7, 3, 9]

var sum = 0

for (i in 0..5) {

var c = s[i]

if (!Char.isUpper(c) && !Char.isDigit(c)) return null

if ("AEIOU".contains(c)) return null

sum = sum + Conv.atoi(c, 36) * weights[i]

}

var cd = (10 - sum%10) % 10

return s + "%(cd)"

}

var tests = [

"710889",

"B0YBKJ",

"406566",

"B0YBLH",

"228276",

"B0YBKL",

"557910",

"B0YBKR",

"585284",

"B0YBKT",

"B00030",

"I23456"

]

for (test in tests) {

var a

var ans = (a = sedol.call(test)) ? a : "not valid"

System.print("%(test) -> %(ans)")

}</lang>

{{out}}

<pre>

B0YBKJ -> B0YBKJ7

406566 -> 4065663

B0YBLH -> B0YBLH2

228276 -> 2282765

B0YBKL -> B0YBKL9

557910 -> 5579107

B0YBKR -> B0YBKR5

585284 -> 5852842

B0YBKT -> B0YBKT7

B00030 -> B000300

I23456 -> not valid