LibRegex: Allow missing high bound in {x,y} quantifiers

Fixes #5518.
Author: https://github.com/alimpfard Commit: e0ac85288e Pull-request: https://github.com/SerenityOS/serenity/pull/5538 Issue: https://github.com/SerenityOS/serenity/issues/5517 Issue: https://github.com/SerenityOS/serenity/issues/5518 Reviewed-by: https://github.com/linusg Reviewed-by: https://github.com/tomuta
2025-08-18 00:09:44 +00:00 · 2021-02-26 23:23:58 +03:30 · 2021-02-26 23:23:58 +03:30 · e0ac85288e · 2024-07-18 21:53:35 +09:00
commit e0ac85288e
parent 91bf3dc7fe
2 changed files with 5 additions and 6 deletions
--- a/Userland/Libraries/LibRegex/RegexParser.cpp
+++ b/Userland/Libraries/LibRegex/RegexParser.cpp
@ -954,12 +954,10 @@ bool ECMA262Parser::parse_quantifier(ByteCode& stack, size_t& match_length_minim
        if (match(TokenType::Comma)) {
            consume();
            auto high_bound = read_digits();
-            if (!high_bound.has_value()) {
-                set_error(Error::InvalidBraceContent);
-                return false;
-            }
-
-            repeat_max = high_bound.value();
+            if (high_bound.has_value())
+                repeat_max = high_bound.value();
+        } else {
+            repeat_max = repeat_min;
        }

        if (!match(TokenType::RightCurly)) {