10 lines
343 B
Groovy
10 lines
343 B
Groovy
def checksum(text) {
|
|
assert text.size() == 6 && !text.toUpperCase().find(/[AEIOU]+/) : "Invalid SEDOL text: $text"
|
|
|
|
def sum = 0
|
|
(0..5).each { index ->
|
|
sum += Character.digit(text.charAt(index), 36) * [1, 3, 1, 7, 3, 9][index]
|
|
}
|
|
text + (10 - (sum % 10)) % 10
|
|
}
|
|
String.metaClass.sedol = { this.&checksum(delegate) }
|