swiftlet 0.2.1

swiftlet is a high-performance text-parsing library for Rust, inspired by Python’s Lark.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

use std::sync::Arc;
use swiftlet::grammar::Algorithm;
use swiftlet::{ParserConfig, Swiftlet};

fn main() {
    let text = r#"
        start: expr
        expr: expr M | N
        M: "A"
        N: "B"
        O: "C"
        %import (WS, INT)
        %ignore WS
        "#;
    let conf = Arc::new(ParserConfig {
        algorithm: Algorithm::CLR,
        ..Default::default()
    });
    let text_parser = Swiftlet::from_str(text)
        .map(|grammar| grammar.parser(conf))
        .expect("failed to build parser");
    match text_parser.parse("BCA") {
        Ok(res) => res.pretty_print(),
        Err(e) => {
            eprintln!("{:?}", e)
        }
    }
}