recursive-descent-parser

A recursive-descent parser in C, that evaluates arithmetic expressions

$ gcc parser.c -o parser
$ parser
> 3+9
12
> 10 * 4  * 2 * 3 / 8
30
> 5 - - - + - (3 + 4) - +2
10
> 2^10
1024

what does it do?

• addition
• subtraction
• single-digit numbers
• multi-digit numbers
• multiplication
• division
• negation
• parentheses
• exponentiation
• floating point
• error handling