@theia/core
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Theia is a cloud & desktop IDE framework implemented in TypeScript.
207 lines • 7.04 kB
JavaScript
;
// *****************************************************************************
// Copyright (C) 2018 TypeFox and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// http://www.eclipse.org/legal/epl-2.0.
//
// This Source Code may also be made available under the following Secondary
// Licenses when the conditions for such availability set forth in the Eclipse
// Public License v. 2.0 are satisfied: GNU General Public License, version 2
// with the GNU Classpath Exception which is available at
// https://www.gnu.org/software/classpath/license.html.
//
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
// *****************************************************************************
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.compareSubstringIgnoreCase = exports.compareIgnoreCase = exports.compareSubstring = exports.compare = exports.unescapeInvisibleChars = exports.escapeInvisibleChars = exports.split = exports.startsWithIgnoreCase = exports.escapeRegExpCharacters = exports.commonPrefixLength = exports.equalsIgnoreCase = exports.isUpperAsciiLetter = exports.isLowerAsciiLetter = exports.endsWith = void 0;
/**
* Determines if haystack ends with needle.
*/
function endsWith(haystack, needle) {
const diff = haystack.length - needle.length;
if (diff > 0) {
return haystack.indexOf(needle, diff) === diff;
}
else if (diff === 0) {
return haystack === needle;
}
else {
return false;
}
}
exports.endsWith = endsWith;
function isLowerAsciiLetter(code) {
return code >= 97 /* a */ && code <= 122 /* z */;
}
exports.isLowerAsciiLetter = isLowerAsciiLetter;
function isUpperAsciiLetter(code) {
return code >= 65 /* A */ && code <= 90 /* Z */;
}
exports.isUpperAsciiLetter = isUpperAsciiLetter;
function isAsciiLetter(code) {
return isLowerAsciiLetter(code) || isUpperAsciiLetter(code);
}
function equalsIgnoreCase(a, b) {
const len1 = a ? a.length : 0;
const len2 = b ? b.length : 0;
if (len1 !== len2) {
return false;
}
return doEqualsIgnoreCase(a, b);
}
exports.equalsIgnoreCase = equalsIgnoreCase;
function doEqualsIgnoreCase(a, b, stopAt = a.length) {
if (typeof a !== 'string' || typeof b !== 'string') {
return false;
}
for (let i = 0; i < stopAt; i++) {
const codeA = a.charCodeAt(i);
const codeB = b.charCodeAt(i);
if (codeA === codeB) {
continue;
}
// a-z A-Z
if (isAsciiLetter(codeA) && isAsciiLetter(codeB)) {
const diff = Math.abs(codeA - codeB);
if (diff !== 0 && diff !== 32) {
return false;
}
}
// Any other charcode
// tslint:disable-next-line:one-line
else {
if (String.fromCharCode(codeA).toLowerCase() !== String.fromCharCode(codeB).toLowerCase()) {
return false;
}
}
}
return true;
}
/**
* @returns the length of the common prefix of the two strings.
*/
function commonPrefixLength(a, b) {
let i;
const len = Math.min(a.length, b.length);
for (i = 0; i < len; i++) {
if (a.charCodeAt(i) !== b.charCodeAt(i)) {
return i;
}
}
return len;
}
exports.commonPrefixLength = commonPrefixLength;
/**
* Escapes regular expression characters in a given string
*/
function escapeRegExpCharacters(value) {
return value.replace(/[\-\\\{\}\*\+\?\|\^\$\.\[\]\(\)\#]/g, '\\$&');
}
exports.escapeRegExpCharacters = escapeRegExpCharacters;
function startsWithIgnoreCase(str, candidate) {
const candidateLength = candidate.length;
if (candidate.length > str.length) {
return false;
}
return doEqualsIgnoreCase(str, candidate, candidateLength);
}
exports.startsWithIgnoreCase = startsWithIgnoreCase;
function* split(s, splitter) {
let start = 0;
while (start < s.length) {
let end = s.indexOf(splitter, start);
if (end === -1) {
end = s.length;
}
yield s.substring(start, end);
start = end + splitter.length;
}
}
exports.split = split;
function escapeInvisibleChars(value) {
return value.replace(/\n/g, '\\n').replace(/\r/g, '\\r');
}
exports.escapeInvisibleChars = escapeInvisibleChars;
function unescapeInvisibleChars(value) {
return value.replace(/\\n/g, '\n').replace(/\\r/g, '\r');
}
exports.unescapeInvisibleChars = unescapeInvisibleChars;
function compare(a, b) {
if (a < b) {
return -1;
}
else if (a > b) {
return 1;
}
else {
return 0;
}
}
exports.compare = compare;
function compareSubstring(a, b, aStart = 0, aEnd = a.length, bStart = 0, bEnd = b.length) {
for (; aStart < aEnd && bStart < bEnd; aStart++, bStart++) {
const codeA = a.charCodeAt(aStart);
const codeB = b.charCodeAt(bStart);
if (codeA < codeB) {
return -1;
}
else if (codeA > codeB) {
return 1;
}
}
const aLen = aEnd - aStart;
const bLen = bEnd - bStart;
if (aLen < bLen) {
return -1;
}
else if (aLen > bLen) {
return 1;
}
return 0;
}
exports.compareSubstring = compareSubstring;
function compareIgnoreCase(a, b) {
return compareSubstringIgnoreCase(a, b, 0, a.length, 0, b.length);
}
exports.compareIgnoreCase = compareIgnoreCase;
function compareSubstringIgnoreCase(a, b, aStart = 0, aEnd = a.length, bStart = 0, bEnd = b.length) {
for (; aStart < aEnd && bStart < bEnd; aStart++, bStart++) {
const codeA = a.charCodeAt(aStart);
const codeB = b.charCodeAt(bStart);
if (codeA === codeB) {
// equal
continue;
}
const diff = codeA - codeB;
if (diff === 32 && isUpperAsciiLetter(codeB)) { // codeB =[65-90] && codeA =[97-122]
continue;
}
else if (diff === -32 && isUpperAsciiLetter(codeA)) { // codeB =[97-122] && codeA =[65-90]
continue;
}
if (isLowerAsciiLetter(codeA) && isLowerAsciiLetter(codeB)) {
//
return diff;
}
else {
return compareSubstring(a.toLowerCase(), b.toLowerCase(), aStart, aEnd, bStart, bEnd);
}
}
const aLen = aEnd - aStart;
const bLen = bEnd - bStart;
if (aLen < bLen) {
return -1;
}
else if (aLen > bLen) {
return 1;
}
return 0;
}
exports.compareSubstringIgnoreCase = compareSubstringIgnoreCase;
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