https://git.ruby-lang.org/ruby.git/commit/?id=f7f8dc5fd4

From f7f8dc5fd47bcd79e8e46cd321ad0dec9e0ec5cd Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Thu, 30 Jan 2020 11:31:48 +0900
Subject: Unnamed groups are not captured when named groups are used


diff --git a/tool/transform_mjit_header.rb b/tool/transform_mjit_header.rb
index 5f89446..ed83748 100644
--- a/tool/transform_mjit_header.rb
+++ b/tool/transform_mjit_header.rb
@@ -105,7 +105,7 @@ module MJITHeader https://github.com/ruby/ruby/blob/trunk/tool/transform_mjit_header.rb#L105
     su2_regex = /{([^{}]|#{su1_regex})*}/
     su3_regex = /{([^{}]|#{su2_regex})*}/ # 3 nested structs/unions is probably enough
     reduced_decl.gsub!(su3_regex, '') # remove structs/unions in the header
-    id_seq_regex = /\s*(#{ident_regex}(\s+|\s*[*]+\s*))*/
+    id_seq_regex = /\s*(?:#{ident_regex}(?:\s+|\s*[*]+\s*))*/
     # Process function header:
     match = /\A#{id_seq_regex}(?<name>#{ident_regex})\s*\(/.match(reduced_decl)
     return match[:name] if match
-- 
cgit v0.10.2


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