From 8ed3676b5f3a50c5e2742b642ffb0db7bd6af085 Mon Sep 17 00:00:00 2001
From: Tom Jenkinson <tom@tjenkinson.me>
Date: Sat, 21 Oct 2023 21:30:22 +0100
Subject: [PATCH] Do not support the `s` flag

---
 src/redos-detector.test.ts | 2 +-
 src/redos-detector.ts      | 8 +-------
 2 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/src/redos-detector.test.ts b/src/redos-detector.test.ts
index 2030ba3f..487d1290 100644
--- a/src/redos-detector.test.ts
+++ b/src/redos-detector.test.ts
@@ -599,7 +599,7 @@ describe('RedosDetector', () => {
       expect(() => isSafe(/a/m)).toThrowError('Unsupported flag: m');
     });
 
-    ['u', 'g', 's', 'y', 'i'].forEach((flag) => {
+    ['u', 'g', 'y', 'i'].forEach((flag) => {
       it(`supports the "${flag}" flag`, () => {
         expect(() => isSafe(new RegExp('a', flag))).not.toThrowError();
       });
diff --git a/src/redos-detector.ts b/src/redos-detector.ts
index f527e8c8..9ebfd322 100644
--- a/src/redos-detector.ts
+++ b/src/redos-detector.ts
@@ -226,13 +226,7 @@ export const defaultMaxBacktracks = 200;
 export const defaultMaxSteps = 20000;
 export const defaultUnicode = false;
 export const defaultCaseInsensitive = false;
-const supportedJSFlags: ReadonlySet<string> = new Set([
-  'u',
-  'g',
-  's',
-  'y',
-  'i',
-]);
+const supportedJSFlags: ReadonlySet<string> = new Set(['u', 'g', 'y', 'i']);
 
 type PatternWithAtomicGroupOffsets = Readonly<{
   atomicGroupOffsets: ReadonlySet<number>;