1 files changed, 29 insertions, 0 deletions
diff --git a/ext/ply/test/lex_dup3.py b/ext/ply/test/lex_dup3.py
new file mode 100644
index 000000000..424101823
--- /dev/null
+++ b/ext/ply/test/lex_dup3.py
@@ -0,0 +1,29 @@
+# lex_token.py
+#
+# Duplicated rule specifiers
+
+import lex
+
+tokens = [
+    "PLUS",
+    "MINUS",
+    "NUMBER",
+    ]
+
+t_PLUS = r'\+'
+t_MINUS = r'-'
+t_NUMBER = r'\d+'
+
+def t_NUMBER(t):
+    r'\d+'
+    pass
+
+def t_error(t):
+    pass
+
+import sys
+sys.tracebacklimit = 0
+
+lex.lex()
+
+