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mroeder/Arithmetic.json

Forked from rtoal/Arithmetic.json
Last active December 9, 2016 21:18
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Ray's Awesome Arithmetic
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Arithmetic.ohm
Arithmetic {
Exp
= AddExp
AddExp
= AddExp "+" MulExp -- plus
| AddExp "-" MulExp -- minus
| MulExp
MulExp
= MulExp "*" ExpExp -- times
| MulExp "/" ExpExp -- divide
| ExpExp
ExpExp
= PriExp "^" ExpExp -- power
| PriExp
PriExp
= "(" Exp ")" -- paren
| "+" PriExp -- pos
| "-" PriExp -- neg
| ident
| number
ident (an identifier)
= letter alnum*
number (a number)
= digit* "." digit+ -- fract
| digit+ -- whole
}
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