From e96216170127983e8a64dc48cec39639566f4265 Mon Sep 17 00:00:00 2001
From: mrmlnc <dmalinochkin@outlook.com>
Date: Mon, 11 Sep 2023 10:48:09 +0300
Subject: [PATCH] fix: keep escaping after brace expansion

---
 src/utils/pattern.spec.ts | 8 ++++++++
 src/utils/pattern.ts      | 2 +-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/utils/pattern.spec.ts b/src/utils/pattern.spec.ts
index 02cde456..97c2d802 100644
--- a/src/utils/pattern.spec.ts
+++ b/src/utils/pattern.spec.ts
@@ -431,6 +431,14 @@ describe('Utils → Pattern', () => {
 
 			assert.deepStrictEqual(actual, expected);
 		});
+
+		it('should keep escaping after expansion', () => {
+			const expected = ['foo@(\\\\)/**/*.a', 'foo@(\\\\)/**/*.b'];
+
+			const actual = util.expandBraceExpansion('foo@(\\\\)/**/{*.a,*.b}');
+
+			assert.deepStrictEqual(actual, expected);
+		});
 	});
 
 	describe('.getPatternParts', () => {
diff --git a/src/utils/pattern.ts b/src/utils/pattern.ts
index ffa6df43..9d789e79 100644
--- a/src/utils/pattern.ts
+++ b/src/utils/pattern.ts
@@ -156,7 +156,7 @@ export function expandPatternsWithBraceExpansion(patterns: Pattern[]): Pattern[]
 }
 
 export function expandBraceExpansion(pattern: Pattern): Pattern[] {
-	const patterns = micromatch.braces(pattern, { expand: true, nodupes: true });
+	const patterns = micromatch.braces(pattern, { expand: true, nodupes: true, keepEscaping: true });
 
 	/**
 	 * Sort the patterns by length so that the same depth patterns are processed side by side.