This is a very simple expression parser for binary operations with operator precedence, unary minus/plus and parentheses. It uses Dijkstra's Shunting-yard algorithm.

Sample input/output:

> 1+1
Result: 2
> 1--1
Result: 2
> 1^3
Result: 2
> ~89
Result: -90
> (1 + 6) * 3
Result: 21

This will be integrated in x64dbg once it is proven to be stable.