[go: up one dir, main page]

nom 0.1.1

A byte oriented, zero copy, parser combinators library
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
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

#[macro_use]
extern crate nom;

use nom::{IResult,Producer,FileProducer,ProducerState,FlatMapper,Mapper,Mapper2,not_line_ending};
use nom::IResult::*;

use std::str;
use std::fmt::Debug;

#[test]
fn map_test_x() {
  let res = Done((),"abcd".as_bytes()).map(|data| { str::from_utf8(data).unwrap() });
  assert_eq!(res, Done((), "abcd"));
}

#[test]
#[allow(unused_must_use)]
fn tag() {
  FileProducer::new("links.txt", 20).map(|producer: FileProducer| {
    let mut p = producer;
    tag!(f "https://".as_bytes());
    //p.push(|par| par.flat_map(f).flat_map(print));
    fn pr(par: IResult<(),&[u8]>) -> IResult<&[u8],()> {
      let p = par.flat_map(f).map_res(str::from_utf8).flat_map(print);
      println!("p : {:?}", p);
      Done("".as_bytes(), ())
    }
    pusher!(ps, pr);
    ps(&mut p);
    //assert!(false);
  }); 
}

pub fn print<'a,T: Debug>(input: T) -> IResult<T, ()> {
  println!("{:?}", input);
  Done(input, ())
}


#[test]
fn is_not() {
  is_not!(foo "\r\n".as_bytes());
  let a = "ab12cd\nefgh".as_bytes();
  assert_eq!(Done((), a).flat_map(foo), Done("\nefgh".as_bytes(), "ab12cd".as_bytes()));
}


#[test]
fn exported_public_method_defined_by_macro() {
  let a = "ab12cd\nefgh".as_bytes();
  assert_eq!(Done((), a).flat_map(not_line_ending), Done("\nefgh".as_bytes(), "ab12cd".as_bytes()));
}