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14 # elements is a mapping of types to binding strength, primary, prefix, infix |
14 # elements is a mapping of types to binding strength, primary, prefix, infix |
15 # and suffix actions |
15 # and suffix actions |
16 # an action is a tree node name, a tree label, and an optional match |
16 # an action is a tree node name, a tree label, and an optional match |
17 # __call__(program) parses program into a labeled tree |
17 # __call__(program) parses program into a labeled tree |
18 |
18 |
|
19 from __future__ import annotations |
19 |
20 |
20 from .i18n import _ |
21 from .i18n import _ |
21 from . import ( |
22 from . import ( |
22 error, |
23 error, |
23 util, |
24 util, |