From 5f4e1338a1a4d932a4f41a85ce148cb6ae1ba868 Mon Sep 17 00:00:00 2001
From: Ali Mohammad Pur <ali.mpfard@gmail.com>
Date: Tue, 13 Jul 2021 02:14:09 +0430
Subject: [PATCH] LibRegex: Allow empty character classes in {B,E}RE

---
 Userland/Libraries/LibRegex/RegexParser.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Userland/Libraries/LibRegex/RegexParser.cpp b/Userland/Libraries/LibRegex/RegexParser.cpp
index 340b360c14..5979da40f1 100644
--- a/Userland/Libraries/LibRegex/RegexParser.cpp
+++ b/Userland/Libraries/LibRegex/RegexParser.cpp
@@ -304,11 +304,11 @@ ALWAYS_INLINE bool AbstractPosixParser::parse_bracket_expression(Vector<CompareT
         }
     }
 
-    if (values.size())
+    if (!values.is_empty()) {
         match_length_minimum = 1;
-
-    if (values.first().type == CharacterCompareType::Inverse)
-        match_length_minimum = 0;
+        if (values.first().type == CharacterCompareType::Inverse)
+            match_length_minimum = 0;
+    }
 
     return true;
 }