Merge pull request #7 from netomi/support-keep-array-for-map

Fix chain operator to respect array constructor

Author: rayokota

src/jsonata/parser.py

@@ -1180,6 +1180,7 @@ def lambda1(terms):
                 result.position = expr.position
                 result.lhs = self.process_ast(expr.lhs)
                 result.rhs = self.process_ast(expr.rhs)
+                result.keep_array = result.lhs.keep_array or result.rhs.keep_array
             else:
                 result = Parser.Infix(self, None)
                 result.type = expr.type