--- /dev/null
+/*---------------------------------------------------------------------------------------------
+* Copyright (c) Microsoft Corporation. All rights reserved.
+* Licensed under the MIT License. See License.txt in the project root for license information.
+*--------------------------------------------------------------------------------------------*/
+(function (factory) {
+ if (typeof module === "object" && typeof module.exports === "object") {
+ var v = factory(require, exports);
+ if (v !== undefined) module.exports = v;
+ }
+ else if (typeof define === "function" && define.amd) {
+ define(["require", "exports"], factory);
+ }
+})(function (require, exports) {
+ "use strict";
+ Object.defineProperty(exports, "__esModule", { value: true });
+ exports.extendedRegExp = exports.repeat = exports.convertSimple2RegExpPattern = exports.endsWith = exports.startsWith = void 0;
+ function startsWith(haystack, needle) {
+ if (haystack.length < needle.length) {
+ return false;
+ }
+ for (var i = 0; i < needle.length; i++) {
+ if (haystack[i] !== needle[i]) {
+ return false;
+ }
+ }
+ return true;
+ }
+ exports.startsWith = startsWith;
+ /**
+ * Determines if haystack ends with needle.
+ */
+ function endsWith(haystack, needle) {
+ var diff = haystack.length - needle.length;
+ if (diff > 0) {
+ return haystack.lastIndexOf(needle) === diff;
+ }
+ else if (diff === 0) {
+ return haystack === needle;
+ }
+ else {
+ return false;
+ }
+ }
+ exports.endsWith = endsWith;
+ function convertSimple2RegExpPattern(pattern) {
+ return pattern.replace(/[\-\\\{\}\+\?\|\^\$\.\,\[\]\(\)\#\s]/g, '\\$&').replace(/[\*]/g, '.*');
+ }
+ exports.convertSimple2RegExpPattern = convertSimple2RegExpPattern;
+ function repeat(value, count) {
+ var s = '';
+ while (count > 0) {
+ if ((count & 1) === 1) {
+ s += value;
+ }
+ value += value;
+ count = count >>> 1;
+ }
+ return s;
+ }
+ exports.repeat = repeat;
+ function extendedRegExp(pattern) {
+ if (startsWith(pattern, '(?i)')) {
+ return new RegExp(pattern.substring(4), 'i');
+ }
+ else {
+ return new RegExp(pattern);
+ }
+ }
+ exports.extendedRegExp = extendedRegExp;
+});