mate_rs/
mate.rs

1//
2// Copyright 2022-present theiskaa. All rights reserved.
3// Use of this source code is governed by MIT license
4// that can be found in the LICENSE file.
5//
6
7use crate::{calculator::Calculator, errors::Error, lexer::Lexer};
8
9// A main structure that takes string input, parses it via [Lexer],
10// and calculates result via [Calculator].
11pub struct Mate {}
12
13impl Mate {
14    // Takes a arithmetic expression as string, parses it to tokens, and calculates final result.
15    // Detailed descriptions could be viewed at lexer source file and calculator source file.
16    pub fn calculate(input: &str) -> Result<f64, Error> {
17        let sub = match Lexer::lex(input.clone()) {
18            Err(e) => return Err(e),
19            Ok(v) => v,
20        };
21
22        Calculator::calculate(sub, input.clone())
23    }
24}
mate_rs/mate.rs

mate_rs/
mate.rs
