Add LSP support

package.json

@@ -83,6 +83,7 @@
 		"@types/vscode": "^1.36.0",
 		"tslint": "^5.12.1",
 		"typescript": "^5.4.0",
+		"vscode-languageclient": "^9.0.1",
 		"vscode-test": "^1.0.0"
 	}
 }

src/client.ts

@@ -0,0 +1,22 @@
+import {
+    Executable,
+    LanguageClient,
+    LanguageClientOptions,
+    ServerOptions,
+} from 'vscode-languageclient/node';
+
+const serverOptions: ServerOptions = <Executable>{
+    command: "M2-language-server"};
+
+const clientOptions: LanguageClientOptions = {
+    documentSelector: [
+        { scheme: 'file', language: 'macaulay2' },
+        { scheme: 'untitled', language: 'macaulay2' }
+    ],
+};
+
+export default new LanguageClient(
+    "macaulay2-language-server",
+    "Macaulay2 Language Server",
+    serverOptions,
+    clientOptions);

src/extension.ts

@@ -5,6 +5,7 @@
 import * as vscode from 'vscode';
 import * as completions from "./completionProviders";
 import * as repl from "./repl";
+import client from "./client";
 
 // this method is called when your extension is activated
 // your extension is activated the very first time the command is executed
@@ -16,6 +17,7 @@ export function activate(context: vscode.ExtensionContext) {
 
 	completions.activate(context);
 	repl.activate(context);
+	client.start();
 
 }