_
_____ ___ __ _ __ ___ ___ ___(_) ___ _ __
/ _ \ \/ / '_ \| '__/ _ \/ __/ __| |/ _ \| '_ \
| __/> <| |_) | | | __/\__ \__ \ | (_) | | | |
\___/_/\_\ .__/|_| \___||___/___/_|\___/|_| |_|
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A simple command line calculator that uses a recursive descent parser, written in C.
Made as an exercise in tokenizing and parsing...
Below is the BNF of the parser. The functions are named and behave the same as those found in C64 BASIC.
expression = ["+"|"-"] term {("+"|"-"|"OR") term} .
term = factor {( "*" | "/" | "AND" ) factor} .
factor =
func "(" expression ")"
| number
| "(" expression ")" .
func =
ABS
| AND
| ATN
| COS
| EXP
| INT
| LOG
| NOT
| OR
| RND
| SGN
| SIN
| SQR
| TAN
