Added templates example

examples/templates.py

@@ -0,0 +1,26 @@
+#
+# This example shows how to use Lark's templates to achieve cleaner grammars
+#
+
+from lark import Lark
+
+grammar = r"""
+start: list | dict
+
+list: "[" _seperated{atom, ","} "]"
+dict: "{" _seperated{key_value, ","} "}"
+key_value: atom ":" atom
+
+_seperated{x, sep}: x (sep x)*  // Define a sequence of 'x sep x sep x ...'
+
+atom: NUMBER | ESCAPED_STRING
+
+%import common (NUMBER, ESCAPED_STRING, WS)
+%ignore WS
+"""
+
+
+parser = Lark(grammar)
+
+print(parser.parse('[1, "a", 2]'))
+print(parser.parse('{"a": 2, "b": 6}'))