nom 4.0.0-alpha2

//! test type inference issues in parsee compilation
//#![feature(trace_macros)]
#![allow(dead_code)]
#![allow(unused_comparisons)]
#![allow(unused_doc_comment)]
#![allow(unused_variables)]

#[macro_use]
extern crate nom;

use std::str;
use nom::{is_digit, alpha};

// issue #617
named!(multi<&[u8], () >, fold_many0!( take_while1!( is_digit ), (), |_, _| {}));

// issue #561
named!(value<Vec<Vec<&str>>>,
	do_parse!(
		first_line: map_res!(is_not_s!("\n"), std::str::from_utf8) >>
		rest: many_m_n!(0, 1, separated_list!(tag!("\n\t"), map_res!(take_while!(call!(|c| c != b'\n')), std::str::from_utf8))) >>
		(
      rest
    )
	)
);

// issue #534
fn wrap_suffix(input: &Option<Vec<&[u8]>>) -> Option<String> {
  if input.is_some() {
    ///
    /// I've tried both of the lines below individually and get the same error.
    ///
    Some("hello".to_string())
    //Some(str::from_utf8(u).expect("Found invalid UTF-8").to_string())
  } else {
    None
  }
}

named!(parse_suffix<&[u8],Option<String>>,do_parse!(
  u: opt!(many1!(alt_complete!(
    tag!("%") | tag!("#")  | tag!("@") | alpha
  ))) >>
  (wrap_suffix(&u))
));