zhongweiy / calc_interperter

A simple calculator interpreter

A calculator interpreter.

What it can do:

evaluate("(1+2)") return 3

evaluate("((((2*( 3 - 0 ))+ 15)/3)*4)") return 28

Support following grammar:

    E->n
    E->(E OP E)
    OP-> one of +, -, *, /

Misc

The calculator includes:

• a syntax parser (str2ast() function)
• an evaluator (evaluate() function)

and some tests.