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#![allow(dead_code)]
// #![allow(unused_variables)]
use std::str;
use nom::bytes::complete::is_not;
use nom::character::complete::char;
use nom::combinator::{map, map_res};
use nom::multi::fold_many0;
use nom::sequence::delimited;
use nom::IResult;
fn atom<'a>(_tomb: &'a mut ()) -> impl FnMut(&'a [u8]) -> IResult<&'a [u8], String> {
move |input| {
map(
map_res(is_not(" \t\r\n"), str::from_utf8),
ToString::to_string,
)(input)
}
}
// FIXME: should we support the use case of borrowing data mutably in a parser?
fn list<'a>(i: &'a [u8], tomb: &'a mut ()) -> IResult<&'a [u8], String> {
delimited(
char('('),
fold_many0(atom(tomb), String::new, |acc: String, next: String| {
acc + next.as_str()
}),
char(')'),
)(i)
}