74 lines
2.3 KiB
JavaScript
74 lines
2.3 KiB
JavaScript
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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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import { URI } from 'vscode-uri';
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const Slash = '/'.charCodeAt(0);
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const Dot = '.'.charCodeAt(0);
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export function isAbsolutePath(path) {
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return path.charCodeAt(0) === Slash;
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}
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export function dirname(uri) {
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const lastIndexOfSlash = uri.lastIndexOf('/');
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return lastIndexOfSlash !== -1 ? uri.substr(0, lastIndexOfSlash) : '';
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}
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export function basename(uri) {
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const lastIndexOfSlash = uri.lastIndexOf('/');
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return uri.substr(lastIndexOfSlash + 1);
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}
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export function extname(uri) {
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for (let i = uri.length - 1; i >= 0; i--) {
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const ch = uri.charCodeAt(i);
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if (ch === Dot) {
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if (i > 0 && uri.charCodeAt(i - 1) !== Slash) {
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return uri.substr(i);
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}
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else {
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break;
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}
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}
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else if (ch === Slash) {
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break;
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}
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}
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return '';
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}
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export function resolvePath(uriString, path) {
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if (isAbsolutePath(path)) {
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const uri = URI.parse(uriString);
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const parts = path.split('/');
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return uri.with({ path: normalizePath(parts) }).toString();
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}
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return joinPath(uriString, path);
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}
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export function normalizePath(parts) {
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const newParts = [];
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for (const part of parts) {
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if (part.length === 0 || part.length === 1 && part.charCodeAt(0) === Dot) {
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// ignore
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}
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else if (part.length === 2 && part.charCodeAt(0) === Dot && part.charCodeAt(1) === Dot) {
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newParts.pop();
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}
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else {
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newParts.push(part);
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}
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}
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if (parts.length > 1 && parts[parts.length - 1].length === 0) {
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newParts.push('');
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}
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let res = newParts.join('/');
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if (parts[0].length === 0) {
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res = '/' + res;
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}
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return res;
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}
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export function joinPath(uriString, ...paths) {
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const uri = URI.parse(uriString);
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const parts = uri.path.split('/');
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for (let path of paths) {
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parts.push(...path.split('/'));
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}
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return uri.with({ path: normalizePath(parts) }).toString();
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}
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