Merge commit 'be3e8236086165e5e45a5a10783823874b3f3ebd' as 'lib/vscode'

lib/vscode/extensions/json-language-features/client/src/requests.ts

@@ -0,0 +1,68 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { Uri } from 'vscode';
+
+export interface RequestService {
+	getContent(uri: string, encoding?: string): Thenable<string>;
+}
+
+export function getScheme(uri: string) {
+	return uri.substr(0, uri.indexOf(':'));
+}
+
+export function dirname(uri: string) {
+	const lastIndexOfSlash = uri.lastIndexOf('/');
+	return lastIndexOfSlash !== -1 ? uri.substr(0, lastIndexOfSlash) : '';
+}
+
+export function basename(uri: string) {
+	const lastIndexOfSlash = uri.lastIndexOf('/');
+	return uri.substr(lastIndexOfSlash + 1);
+}
+
+const Slash = '/'.charCodeAt(0);
+const Dot = '.'.charCodeAt(0);
+
+export function isAbsolutePath(path: string) {
+	return path.charCodeAt(0) === Slash;
+}
+
+export function resolvePath(uri: Uri, path: string): Uri {
+	if (isAbsolutePath(path)) {
+		return uri.with({ path: normalizePath(path.split('/')) });
+	}
+	return joinPath(uri, path);
+}
+
+export function normalizePath(parts: string[]): string {
+	const newParts: string[] = [];
+	for (const part of parts) {
+		if (part.length === 0 || part.length === 1 && part.charCodeAt(0) === Dot) {
+			// ignore
+		} else if (part.length === 2 && part.charCodeAt(0) === Dot && part.charCodeAt(1) === Dot) {
+			newParts.pop();
+		} else {
+			newParts.push(part);
+		}
+	}
+	if (parts.length > 1 && parts[parts.length - 1].length === 0) {
+		newParts.push('');
+	}
+	let res = newParts.join('/');
+	if (parts[0].length === 0) {
+		res = '/' + res;
+	}
+	return res;
+}
+
+
+export function joinPath(uri: Uri, ...paths: string[]): Uri {
+	const parts = uri.path.split('/');
+	for (let path of paths) {
+		parts.push(...path.split('/'));
+	}
+	return uri.with({ path: normalizePath(parts) });
+}