1 files changed, 65 insertions, 0 deletions
diff --git a/extensions/markdown-language-features/src/client.ts b/extensions/markdown-language-features/src/client.ts
new file mode 100644
index 00000000000..aabd09f4633
--- /dev/null
+++ b/extensions/markdown-language-features/src/client.ts
@@ -0,0 +1,65 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import Token = require('markdown-it/lib/token');
+import * as vscode from 'vscode';
+import { BaseLanguageClient, LanguageClientOptions, RequestType } from 'vscode-languageclient';
+import * as nls from 'vscode-nls';
+import { IMdParser } from './markdownEngine';
+import { markdownFileExtensions } from './util/file';
+import { IMdWorkspace } from './workspace';
+
+const localize = nls.loadMessageBundle();
+
+const parseRequestType: RequestType<{ uri: string }, Token[], any> = new RequestType('markdown/parse');
+
+const readFileRequestType: RequestType<{ uri: string }, number[], any> = new RequestType('markdown/readFile');
+
+const findFilesRequestTypes: RequestType<{}, string[], any> = new RequestType('markdown/findFiles');
+
+export type LanguageClientConstructor = (name: string, description: string, clientOptions: LanguageClientOptions) => BaseLanguageClient;
+
+
+export async function startClient(factory: LanguageClientConstructor, workspace: IMdWorkspace, parser: IMdParser): Promise<BaseLanguageClient> {
+
+	const documentSelector = ['markdown'];
+	const mdFileGlob = `**/*.{${markdownFileExtensions.join(',')}}`;
+
+	const clientOptions: LanguageClientOptions = {
+		documentSelector,
+		synchronize: {
+			configurationSection: ['markdown'],
+			fileEvents: vscode.workspace.createFileSystemWatcher(mdFileGlob),
+		},
+		initializationOptions: {}
+	};
+
+	const client = factory('markdown', localize('markdownServer.name', 'Markdown Language Server'), clientOptions);
+
+	client.registerProposedFeatures();
+
+	client.onRequest(parseRequestType, async (e) => {
+		const uri = vscode.Uri.parse(e.uri);
+		const doc = await workspace.getOrLoadMarkdownDocument(uri);
+		if (doc) {
+			return parser.tokenize(doc);
+		} else {
+			return [];
+		}
+	});
+
+	client.onRequest(readFileRequestType, async (e): Promise<number[]> => {
+		const uri = vscode.Uri.parse(e.uri);
+		return Array.from(await vscode.workspace.fs.readFile(uri));
+	});
+
+	client.onRequest(findFilesRequestTypes, async (): Promise<string[]> => {
+		return (await vscode.workspace.findFiles(mdFileGlob, '**/node_modules/**')).map(x => x.toString());
+	});
+
+	await client.start();
+
+	return client;
+}