slk-581

Makes SLK-581 indicators, recently popular because of the Australian Census.

var makeIndicator = require('slk-581').makeIndicator;
var indicator = makeIndicator({
    givenName: 'Jane',
    familyName: 'Citizen',
    born: {
        year: 1970, // bloody Gen-Xer
        month: 2,
        day: 1,
        accuracy: {
            year: 'A', // accurate
            month: 'E', // estimated
            day: 'U', // unknown
        },
    },
    sex: 2, // 1: male; 2: female; 3: intersex/indeterminate; 9: unknown
});
console.log(indicator); // -> ITZAN010219702UEA

References:

• Statistical linkage key 581 cluster
• SLK-581 Summary Sheet