Youka

various improvements in performance, safety, features and readability

9

I tried to keep the original authors style and focused on rather important changes. Everything was tested with the example source but i'd like some impressions too.

Reusable scope

2

```rust use asciimath::{compile, scope, Evaluate}; let scope_one = scope!{ "x" => 8, "y" => 12.25 }; let scope_two = scope!{ "x" => 3, "y" => 0 }; let expression =...