From 9cdea2d5212b1ea343b40fc59bf80ca6668d0f0b Mon Sep 17 00:00:00 2001
From: Ali Mohammad Pur <ali.mpfard@gmail.com>
Date: Tue, 13 Jul 2021 02:26:52 +0430
Subject: [PATCH] LibRegex: Consider EOF in the middle of a range an error

---
 Userland/Libraries/LibRegex/RegexParser.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Userland/Libraries/LibRegex/RegexParser.cpp b/Userland/Libraries/LibRegex/RegexParser.cpp
index da2225348a..5d8537d168 100644
--- a/Userland/Libraries/LibRegex/RegexParser.cpp
+++ b/Userland/Libraries/LibRegex/RegexParser.cpp
@@ -193,6 +193,9 @@ ALWAYS_INLINE bool AbstractPosixParser::parse_bracket_expression(Vector<CompareT
             } else if (values.last().type == CharacterCompareType::Char) {
                 values.append({ CharacterCompareType::RangeExpressionDummy, 0 });
 
+                if (done())
+                    return set_error(Error::MismatchingBracket);
+
                 if (match(TokenType::HyphenMinus)) {
                     consume();
                     // Valid range, add ordinary character