42 lines
1.1 KiB
JavaScript
42 lines
1.1 KiB
JavaScript
function sedol(input) {
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return input + sedol_check_digit(input);
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}
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var weight = [1, 3, 1, 7, 3, 9, 1];
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function sedol_check_digit(char6) {
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if (char6.search(/^[0-9BCDFGHJKLMNPQRSTVWXYZ]{6}$/) == -1)
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throw "Invalid SEDOL number '" + char6 + "'";
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var sum = 0;
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for (var i = 0; i < char6.length; i++)
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sum += weight[i] * parseInt(char6.charAt(i), 36);
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var check = (10 - sum%10) % 10;
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return check.toString();
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}
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var input = [
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'710889', 'B0YBKJ', '406566', 'B0YBLH', '228276',
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'B0YBKL', '557910', 'B0YBKR', '585284', 'B0YBKT',
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"BOATER" , "12345", "123456", "1234567"
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];
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var expected = [
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'7108899', 'B0YBKJ7', '4065663', 'B0YBLH2', '2282765',
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'B0YBKL9', '5579107', 'B0YBKR5', '5852842', 'B0YBKT7',
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null, null, '1234563', null
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];
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for (var i in input) {
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try {
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var sedolized = sedol(input[i]);
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if (sedolized == expected[i])
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print(sedolized);
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else
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print("error: calculated sedol for input " + input[i] +
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" is " + sedolized + ", but it should be " + expected[i]
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);
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}
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catch (e) {
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print("error: " + e);
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}
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}
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