| #![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) |
| } |