monaco-editor
Version:
A browser based code editor
45 lines (44 loc) • 1.33 kB
JavaScript
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
export 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;
}
/**
* Determines if haystack ends with needle.
*/
export 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;
}
}
export function convertSimple2RegExpPattern(pattern) {
return pattern.replace(/[\-\\\{\}\+\?\|\^\$\.\,\[\]\(\)\#\s]/g, '\\$&').replace(/[\*]/g, '.*');
}
export function repeat(value, count) {
var s = '';
while (count > 0) {
if ((count & 1) === 1) {
s += value;
}
value += value;
count = count >>> 1;
}
return s;
}