From ceec988f2ebb22ada1c132ddcd64c38501748dc0 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Mon, 9 Oct 2023 19:58:14 +0900
Subject: ripper: Support member references in the DSL

---
 ext/ripper/tools/dsl.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ext')

diff --git a/ext/ripper/tools/dsl.rb b/ext/ripper/tools/dsl.rb
index 3c43cf5140..6d662b3fb8 100644
--- a/ext/ripper/tools/dsl.rb
+++ b/ext/ripper/tools/dsl.rb
@@ -15,7 +15,7 @@
 
 class DSL
   TAG_PATTERN = /(?><[a-zA-Z0-9_]+>)/.source
-  NAME_PATTERN = /(?>\$|\d+|[a-zA-Z_][a-zA-Z0-9_]*|\[[a-zA-Z_.][-a-zA-Z0-9_.]*\])/.source
+  NAME_PATTERN = /(?>\$|\d+|[a-zA-Z_][a-zA-Z0-9_]*|\[[a-zA-Z_.][-a-zA-Z0-9_.]*\])(?>(?:\.|->)[a-zA-Z_][a-zA-Z0-9_]*)*/.source
   NOT_REF_PATTERN = /(?>\#.*|[^\"$@]*|"(?>\\.|[^\"])*")/.source
 
   def initialize(code, options)
-- 
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