URI_checks.js

import { datatypeIs } from "./phlib/phlib.js";

/**
 * determine if the passed value conforms to am IETF RFC4151 TAG URI
 *
 * @param {string} identifier  The service identifier to be checked
 * @return {boolean} true if the service identifier is in RFC4151 TAG URI format
 */
// RFC 4151 compliant - https://tools.ietf.org/html/rfc4151
// tagURI = "tag:" taggingEntity ":" specific [ "#" fragment ]
let TagRegex = new RegExp(
	"^tag:(([\\da-z\\-\\._]+@)?[\\da-z][\\da-z-]*[\\da-z]*(\\.[\\da-z][\\da-z\\-]*[\\da-z]*)*),\\d{4}(\\-\\d{2}(\\-\\d{2})?)?:(['a-z\\d-\\._~!$&\\(\\)\\*\\+,;=:@\\?/]|%[0-9a-f]{2})*(#(['a-z0-9\\-\\._~!$&\\(\\)\\*\\+,;=:@\\?/]|%[0-9a-f]{2})*)?$",
	"i"
);
export var isTAGURI = (identifier) => (datatypeIs(identifier, "string") ? TagRegex.test(identifier.trim()) : false);

/**
 * check if the argument complies to a CRID format
 *
 * @param {string} value  value whose format to check
 * @returns	{boolean} true if the argument confirms to the CRID format, else false
 **/
let CRIDRegex = new RegExp("crid://(.*)/(.*)", "i");
export var isCRIDURI = (value) => (datatypeIs(value, "string") ? CRIDRegex.test(value.trim()) : false);