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yhirose/calc.peg

Created May 8, 2022 13:57
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Learn LLVM 12 - Chapter 03 - calc PEG grammar
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calc.peg
calc <- decl expr
decl <- ('with' ident (',' ident)* ':')?
expr <- term (term_op term)*
term <- factor (factor_op factor)*
factor <- ident / number / '(' expr ')'
term_op <- < [+-] >
factor_op <- < [*/] >
ident <- < [a-zA-Z]+ >
number <- < [0-9]+ >
%whitespace <- [ \t\n]*
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