| """ | |
| Templates | |
| ========= | |
| 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}')) |