util-ex/lib/to-regexp.js

Browser-friendly enhanced util fully compatible with standard node.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
exports.toRegExp = toRegExp;
var _regexp = require("./is/type/regexp.js");
/**
 * create or clone RegExp
 * @param {string|RegExp} value - create a new RegExp from.
 * @returns {RegExp} - new RegExp instance.
 * @example
 * toRegExp('/[a-z]/g') // new RegExp(/[a-z]/g)
 * toRegExp(/[a-z]/g)  // new RegExp(/[a-z]/g)
 */
function toRegExp(value) {
  let result;
  if (typeof value === 'string' && value.length > 2 && value[0] === '/') {
    const i = value.lastIndexOf('/');
    const source = value.slice(1, i);
    const flags = value.slice(i + 1);
    result = new RegExp(source, flags);
  } else if ((0, _regexp.isRegExp)(value)) {
    result = new RegExp(value.source, value.flags);
  }
  return result;
}
;
var _default = exports.default = toRegExp;