add new features and fix bugs

client/src/extension.ts

@@ -15,6 +15,7 @@ import {
     cdlDocumentSymbolProvider,
     defDocumentSymbolProvider
 } from "./common/handlers"
+import { computeTclFoldingRanges } from "./common/folding"
 import { registerLogger, traceError, traceLog, traceVerbose } from "./common/log/logging"
 import {
     checkVersion,
@@ -115,6 +116,17 @@ export async function activate(context: vscode.ExtensionContext) {
         }
     })
 
+    // Folding ranges for TCL (brace based)
+    const tclFoldingProvider = vscode.languages.registerFoldingRangeProvider(
+        [{ language: "tcl" }],
+        {
+            provideFoldingRanges(document: vscode.TextDocument) {
+                return computeTclFoldingRanges(document)
+            }
+        }
+    )
+    context.subscriptions.push(tclFoldingProvider)
+
     //
     const formatCdlProvider = vscode.languages.registerDocumentFormattingEditProvider(
         { scheme: "file", language: "cdl" },