Here you can find the source of toRegExp(String source, String optionsString)
public static NativeRegExp toRegExp(String source, String optionsString)
//package com.java2s; /**//from w w w . j a v a 2s . c om * Copyright 2010-2016 Three Crickets LLC. * <p> * The contents of this file are subject to the terms of the Mozilla Public * License version 1.1: http://www.mozilla.org/MPL/MPL-1.1.html * <p> * Alternatively, you can obtain a royalty free commercial license with less * limitations, transferable or non-transferable, directly from Three Crickets * at http://threecrickets.com/ */ import jdk.nashorn.internal.objects.NativeRegExp; public class Main { public static NativeRegExp toRegExp(String source, String optionsString) { return (NativeRegExp) NativeRegExp.constructor(true, null, source, optionsString); } }