Upgrade packages

.babelrc

@@ -0,0 +1,5 @@
+{
+  "presets": [
+      "@babel/preset-env"
+  ]
+}

.nvmrc

@@ -0,0 +1 @@
+v18.14.0

lib/highlighter.js

@@ -1,9 +1,9 @@
-var React = require('react');
-var RegExpPropType = require('./regExpPropType');
-var escapeStringRegexp = require('escape-string-regexp');
-var blacklist = require('blacklist');
-var createReactClass = require('create-react-class');
-var PropTypes = require('prop-types');
+import React from 'react';
+import PropTypes from 'prop-types';
+import escapeStringRegexp from 'escape-string-regexp';
+import blacklist from 'blacklist';
+import createReactClass from 'create-react-class';
+import { RegExpPropType } from './regExpPropType.js';
 
 function removeDiacritics(str, blacklist) {
   if (!String.prototype.normalize) {
@@ -243,4 +243,4 @@ Highlighter.defaultProps = {
   matchStyle: {}
 };
 
-module.exports = Highlighter;
+export default Highlighter;

lib/regExpPropType.js

@@ -1,12 +1,10 @@
-var regExpPropType = function (props, propName, componentName, location) {
+export const RegExpPropType = (props, propName, componentName, location) => {
   if (!(props[propName] instanceof RegExp)) {
-    var propType = typeof props[propName];
+    const propType = typeof props[propName];
 
     return new Error(
       ("Invalid " + location + " `" + propName + "` of type `" + propType + "` ") +
         ("supplied to `" + componentName + "`, expected `RegExp`.")
     );
   }
-};
-
-module.exports = regExpPropType;
+};