ebnf_parser/
lib.rs

1pub mod ast;
2pub mod error;
3mod lexer;
4mod parser;
5pub mod span;
6mod token;
7
8pub use lexer::Lexer;
9pub use parser::*;
10pub use token::*;
11
12#[cfg(test)]
13mod tests {
14    use super::*;
15
16    #[test]
17    fn lex() {
18        // let mut lexer = lexer::Lexer::new(include_str!("../grammar.ebnf"));
19        let mut lexer = Lexer::new("'a' , \"ba\" | () {} [] ; ? asdasd ? (* as (d *) asd");
20        while let Ok(Some(token)) = lexer.next_token() {
21            println!("{token:?}");
22        }
23    }
24
25    #[test]
26    fn parse() {
27        let text = include_str!("../grammar.ebnf");
28        let res = Parser::new(Lexer::new(text)).parse();
29        match res {
30            Ok(res) => {
31                println!("{:#?}", res.syntax);
32                for (k, v) in res.comments {
33                    println!(
34                        "{}: {:?} -- {:?}",
35                        k,
36                        v.iter().map(|c| c.text).collect::<Vec<_>>(),
37                        res.tokens.get(k),
38                    );
39                }
40            }
41            Err(err) => eprintln!(
42                "\x1b[31m{}\x1b[1m{}\x1b[22m{}\x1b[0m\n{}",
43                &text[(err.span.start - 20)..(err.span.start)],
44                &text[err.span.start..err.span.end],
45                &text[(err.span.end)..(err.span.end + 20)],
46                err.message,
47            ),
48        }
49    }
50}
ebnf_parser/lib.rs

ebnf_parser/
lib.rs
