24 lines
461 B
BNF
24 lines
461 B
BNF
MODULE ::= EXPR*
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EXPR ::=
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| IN
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| ASSERT
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ASSERT ::= (assert_eq|assert_ne) tuple
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IN ::= OR (in OR)?
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OR ::= AND (or AND)*
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AND ::= TERM (and TERM)*
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TERM ::= FACTOR ((add|sub) FACTOR)*
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FACTOR ::= USUB ((mul|div|mod) USUB)*
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USUB ::= sub* NOT
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NOT ::= not* POW
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POW ::= LITERAL (pow LITERAL)?
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LITERAL ::=
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| BUILTIN
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| TUPLE
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| INDEX
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| opar EXPR cpar
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INDEX ::=
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| (TUPLE|str) osquare (EXPR (comma EXPR)*)? csquare
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TUPLE ::=
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| opar EXPR+ cpar
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BUILTIN ::= num | bool | str
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