Set maybe_placeholders to False for lark 1.+ compatibility (#664)

Signed-off-by: Shane Loretz <sloretz@osrfoundation.org>
ros2 · Feb 18, 2022 · 90a74c3 · 90a74c3
1 parent 3cfdb4c
commit 90a74c3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/rosidl_parser/rosidl_parser/parser.py b/rosidl_parser/rosidl_parser/parser.py
@@ -85,7 +85,7 @@ def parse_idl_string(idl_string, png_file=None):
 def get_ast_from_idl_string(idl_string):
     global _parser
     if _parser is None:
-        _parser = Lark(grammar, start='specification')
+        _parser = Lark(grammar, start='specification', maybe_placeholders=False)
     return _parser.parse(idl_string)