asciimath-rs

Parses mathematical (infix) expressions into an Abstract Syntax Tree using Dijkstra's "shunting yard" algorithm.

Simple, bare-bones, and efficient.

Features

• evaluation
• support for variables
  • with artibrary number of characters (e.g. abcde)

Goals

• functions
  • basic (sin, cos, etc)
  • user-defined
• matrices (maybe)
• documentation

Non-goals

• non-mathematical expressions
• php-esque abominations like a=func(x) && b=func(y) && 'what'

How-To

extern crate asciimath;
use asciimath::Evaluate;

fn main() {
    let expression = "x + 4 * 2 / ( 1 - 5 ) ^ (2 - 2 ^ 3)";

    let mut scope = asciimath::Scope::new();
    scope.set_var("x", 3);

    println!(
        "{:?}",
        asciimath::parse(expression).eval_with(&scope)
    );
}