fixes #114203

src/vs/workbench/services/label/common/labelService.ts

@@ -21,6 +21,7 @@ import { match } from 'vs/base/common/glob';
 import { LifecyclePhase } from 'vs/workbench/services/lifecycle/common/lifecycle';
 import { registerSingleton } from 'vs/platform/instantiation/common/extensions';
 import { IPathService } from 'vs/workbench/services/path/common/pathService';
+import { hasDriveLetter } from 'vs/base/common/extpath';
 
 const resourceLabelFormattersExtPoint = ExtensionsRegistry.registerExtensionPoint<ResourceLabelFormatter[]>({
 	extensionPoint: 'resourceLabelFormatters',
@@ -73,10 +74,6 @@ const resourceLabelFormattersExtPoint = ExtensionsRegistry.registerExtensionPoin
 const sepRegexp = /\//g;
 const labelMatchingRegexp = /\$\{(scheme|authority|path|(query)\.(.+?))\}/g;
 
-function hasDriveLetter(path: string): boolean {
-	return !!(path && path[2] === ':');
-}
-
 class ResourceLabelFormattersHandler implements IWorkbenchContribution {
 	private formattersDisposables = new Map<ResourceLabelFormatter, IDisposable>();
 
@@ -268,7 +265,7 @@ export class LabelService extends Disposable implements ILabelService {
 		});
 
 		// convert \c:\something => C:\something
-		if (formatting.normalizeDriveLetter && hasDriveLetter(label)) {
+		if (formatting.normalizeDriveLetter && hasDriveLetter(label.substr(1))) {
 			label = label.charAt(1).toUpperCase() + label.substr(2);
 		}