!function(e, o) {
  "object" == typeof exports && "undefined" != typeof module ? o(exports) : "function" == typeof define && define.amd ? define([ "exports" ], o) : o((e = "undefined" != typeof globalThis ? globalThis : e || self).RegexpHelperCore = {});
}(this, (function(e) {
  "use strict";
  const o = /*#__PURE__*/ Object.prototype.toString.call(/a/);
  function toHex(e, o) {
    const n = e.toString(16).padStart(4, "0");
    return o ? n.toUpperCase() : n;
  }
  function toUnicode(e, o, n) {
    let t;
    if ("string" == typeof e && (t = e, e = t.codePointAt(0)), e > 0xffff && o) {
      let o;
      return o = "string" != typeof t ? surrogatePair(e) : [ t.charCodeAt(0), t.charCodeAt(1) ], 
      o.map((function(e) {
        return _toUnicode(e, n);
      })).join("");
    }
    return _toUnicode(e, n);
  }
  function toUnicode2(e, o = {}) {
    return toUnicode(e, o.noMerge, o.wrap);
  }
  function _toUnicode(e, o) {
    const n = toHex(e);
    return o || n.length > 4 ? `\\u{${n}}` : `\\u${n}`;
  }
  function isDoubleUnicode(e) {
    return e.charCodeAt(0) === e.codePointAt(0);
  }
  function isRegExp(e) {
    return e instanceof RegExp || Object.prototype.toString.call(e) === o ? e : null;
  }
  function surrogatePair(e) {
    const o = Math.floor((e - 0x10000) / 0x400) + 0xd800, n = (e - 0x10000) % 0x400 + 0xdc00;
    return Object.assign([ o, n ], {
      h: o,
      l: n
    });
  }
  function unicodeUnEscape(e, o) {
    return e.replace(o ? /u\{([0-9a-fA-F]{1,8})\}/g : /\\u\{([0-9a-fA-F]{1,8})\}/g, ((e, o) => String.fromCodePoint(parseInt(o, 16))));
  }
  function unicodeUnEscape2(e, o = {}) {
    return unicodeUnEscape(e, o.noLeadingSolidus);
  }
  function unicodeEscape(e, o, n, t, c = /./gu) {
    return e.replace(c, (e => {
      const c = toUnicode(e, n, !t);
      return o ? c.replace(/\\/, "") : c;
    }));
  }
  function unicodeEscape2(e, o = {}) {
    return unicodeEscape(e, o.noLeadingSolidus, o.noMerge, o.noWrap, o.filter);
  }
  function escapeRegExp(e) {
    return e.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
  }
  var n = {
    REGEXP_TO_STRING_TAG: o,
    _toUnicode,
    escapeRegExp,
    isDoubleUnicode,
    isRegExp,
    surrogatePair,
    toHex,
    toUnicode,
    toUnicode2,
    unicodeEscape,
    unicodeEscape2,
    unicodeUnEscape,
    unicodeUnEscape2
  };
  e.REGEXP_TO_STRING_TAG = o, e._toUnicode = _toUnicode, e.default = n, e.escapeRegExp = escapeRegExp, 
  e.isDoubleUnicode = isDoubleUnicode, e.isRegExp = isRegExp, e.surrogatePair = surrogatePair, 
  e.toHex = toHex, e.toUnicode = toUnicode, e.toUnicode2 = toUnicode2, e.unicodeEscape = unicodeEscape, 
  e.unicodeEscape2 = unicodeEscape2, e.unicodeUnEscape = unicodeUnEscape, e.unicodeUnEscape2 = unicodeUnEscape2, 
  Object.defineProperty(e, "__esModule", {
    value: !0
  });
}));
//# sourceMappingURL=index.umd.production.min.cjs.map