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node_modules/vscode-json-languageservice/lib/esm/utils/strings.js
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52
node_modules/vscode-json-languageservice/lib/esm/utils/strings.js
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/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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export function startsWith(haystack, needle) {
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if (haystack.length < needle.length) {
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return false;
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}
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for (var i = 0; i < needle.length; i++) {
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if (haystack[i] !== needle[i]) {
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return false;
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}
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}
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return true;
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}
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/**
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* Determines if haystack ends with needle.
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*/
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export function endsWith(haystack, needle) {
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var diff = haystack.length - needle.length;
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if (diff > 0) {
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return haystack.lastIndexOf(needle) === diff;
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}
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else if (diff === 0) {
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return haystack === needle;
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}
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else {
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return false;
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}
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}
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export function convertSimple2RegExpPattern(pattern) {
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return pattern.replace(/[\-\\\{\}\+\?\|\^\$\.\,\[\]\(\)\#\s]/g, '\\$&').replace(/[\*]/g, '.*');
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}
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export function repeat(value, count) {
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var s = '';
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while (count > 0) {
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if ((count & 1) === 1) {
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s += value;
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}
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value += value;
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count = count >>> 1;
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}
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return s;
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}
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export function extendedRegExp(pattern) {
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if (startsWith(pattern, '(?i)')) {
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return new RegExp(pattern.substring(4), 'i');
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}
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else {
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return new RegExp(pattern);
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}
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}
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