fix(prompts): handle trailing backslash in path prompt directory mode

.changeset/path-windows-separator.md

@@ -0,0 +1,5 @@
+---
+"@clack/prompts": patch
+---
+
+Fix the `path` prompt in `directory` mode on Windows: typing a trailing `\` after a directory now lists its children instead of showing no matches.

packages/prompts/src/path.ts

@@ -87,21 +87,23 @@ export const path = (opts: PathOptions) => {
 
 			try {
 				let searchPath: string;
+				// Accept both separators on every OS: Windows users type `\`
+				const hasTrailingSeparator = userInput.endsWith('/') || userInput.endsWith('\\');
 
 				if (!existsSync(userInput)) {
 					searchPath = dirname(userInput);
 				} else {
 					const stat = lstatSync(userInput);
-					if (stat.isDirectory() && (!opts.directory || userInput.endsWith('/'))) {
+					if (stat.isDirectory() && (!opts.directory || hasTrailingSeparator)) {
 						searchPath = userInput;
 					} else {
 						searchPath = dirname(userInput);
 					}
 				}
 
-				// Strip trailing slash so startsWith matches the directory itself among its siblings
+				// Strip the trailing separator so startsWith matches the directory itself among its siblings
 				const prefix =
-					userInput.length > 1 && userInput.endsWith('/') ? userInput.slice(0, -1) : userInput;
+					userInput.length > 1 && hasTrailingSeparator ? userInput.slice(0, -1) : userInput;
 
 				const items = readdirSync(searchPath)
 					.map((item) => {

packages/prompts/test/path.test.ts

@@ -237,6 +237,45 @@ describe.each(['true', 'false'])('text (isCI = %s)', (isCI) => {
 		expect(value).toBe('/tmp/foo');
 	});
 
+	// Windows path semantics: node:path is win32 there, and memfs maps C:\\tmp to /tmp.
+	test.skipIf(process.platform !== 'win32')(
+		'directory mode traverses into child when trailing backslash entered',
+		async () => {
+			const result = prompts.path({
+				message: 'foo',
+				initialValue: 'C:\\tmp',
+				directory: true,
+				input,
+				output,
+			});
+
+			input.emit('keypress', '\\', { name: '\\' });
+			input.emit('keypress', '', { name: 'return' });
+			// cancel instead of hanging if return did not submit
+			input.emit('keypress', '', { name: 'escape' });
+
+			expect(await result).toBe('C:\\tmp\\foo');
+		}
+	);
+
+	test.skipIf(process.platform !== 'win32')(
+		'directory mode lists children of an initial value ending in a backslash',
+		async () => {
+			const result = prompts.path({
+				message: 'foo',
+				initialValue: 'C:\\tmp\\',
+				directory: true,
+				input,
+				output,
+			});
+
+			input.emit('keypress', '', { name: 'return' });
+			input.emit('keypress', '', { name: 'escape' });
+
+			expect(await result).toBe('C:\\tmp\\foo');
+		}
+	);
+
 	test('directory mode can navigate from initial directory to child directory', async () => {
 		const result = prompts.path({
 			message: 'foo',