7 lines
177 B
Plaintext
7 lines
177 B
Plaintext
root ::= (expr "=" ws term "\n")+
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expr ::= term ([-+*/] term)*
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term ::= ident | num | "(" ws expr ")" ws
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ident ::= [a-z] [a-z0-9_]* ws
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num ::= [0-9]+ ws
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ws ::= [ \t\n]*
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