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oni_comb_parser/primitive/
take_till0.rs

1use core::marker::PhantomData;
2
3use crate::error::ParseError;
4use crate::fail::PResult;
5use crate::input::Input;
6use crate::parser::Parser;
7
8pub struct TakeTill0<F, I: Input>(F, PhantomData<fn(&mut I)>);
9
10pub fn take_till0<I: Input, F: FnMut(I::Token) -> bool>(f: F) -> TakeTill0<F, I> {
11  TakeTill0(f, PhantomData)
12}
13
14impl<I: Input, F> Parser<I> for TakeTill0<F, I>
15where
16  F: FnMut(I::Token) -> bool,
17{
18  type Error = ParseError;
19  type Output = I::Slice;
20
21  #[inline]
22  fn parse_next(&mut self, input: &mut I) -> PResult<I::Slice, ParseError> {
23    let cp = input.checkpoint();
24    while let Some(t) = input.peek_token() {
25      if (self.0)(t) {
26        break;
27      } else {
28        input.next_token();
29      }
30    }
31    Ok(input.slice_since(cp))
32  }
33}