urns/lib/equivalent.js

An RFC 8141 compliant URN library with some interesting type related functionality

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.equivalent = void 0;
var parser_1 = require("./parser");
/**
 * This is testing for equivalence as defined in Section 3 of RFC 8141
 *
 * @param a First URN
 * @param b Second URN
 * @returns boolean
 */
function equivalent(a, b) {
    /** Parse both URNs */
    var ap = parser_1.parseURN(a);
    var bp = parser_1.parseURN(b);
    /**
     * We only pay attention to the NID and the NSS, all other components are
     * ignored (per RFC 8141).  Furthermore, the NID comparison is case insensitive.
     */
    return (ap.nid.toLowerCase() === bp.nid.toLowerCase() &&
        ap.nss_encoded === bp.nss_encoded);
}
exports.equivalent = equivalent;