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Added parentheses support to eval and some formatting

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This commit is contained in:
Miika Alonen
2023-02-09 00:16:26 +02:00
parent f51b230099
commit 55b6940f35
3 changed files with 44 additions and 24 deletions
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ziffers/ziffers.lark
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@ -18,7 +18,7 @@
?roman_number: /iv|v|v?i{1,3}/
// Valid as integer
?number: SIGNED_NUMBER | random_integer | cyclic_number
?number: NUMBER | random_integer | cyclic_number
cyclic_number: "<" number (WS number)* ">"
// Repeats
@ -69,11 +69,12 @@
// Rules for evaluating clauses inside {}
// TODO: Support for parenthesis?
eval: "{" operation "}"
operation: atom (operator atom)+
atom: (number | DECIMAL)
eval: "{" operation+ "}"
operation: atom (operator (sub_operations | operation))*
sub_operations: "(" operation ")"
atom: (NUMBER | DECIMAL)
%import common.NUMBER
%import common.SIGNED_NUMBER
//%import common.SIGNED_NUMBER
%import common.DECIMAL
%import common.WS