spavkov / booleanlogicexpressionparser Goto Github PK

will it be The MIT License?

First of all, great work, I really liked your approach for parsing Boolean expressions. Now to the issue...

It seems your implementation doesn't deal with operator precedence like most expression evaluators do.

For instance, if you eval this expression in JavaScript: true || false && false it yields true

However, the same expression yields false in your implementation.

Making it short, your solution treats the expression as (true || false) && false while JavaScript treat it as true || (false && false).

Here is the JavaScript reference for Operator Precedence: https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Operators/Operator_Precedence