39 lines
977 B
Rust
39 lines
977 B
Rust
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use nom::error::ParseError;
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use nom::IResult;
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use nom::InputLength;
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use super::Context;
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pub fn context_many1<'r: 's, 's, I, O, E, M>(
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context: Context<'r, 's>,
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mut many_matcher: M,
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) -> impl FnMut(I) -> IResult<I, Vec<O>, E> + 'r
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where
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I: Clone + InputLength,
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E: ParseError<I>,
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M: for<'x> Fn(Context<'x, 's>, I) -> IResult<I, O, E> + 'r,
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{
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move |mut i: I| {
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let mut err = None;
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let mut elements: Vec<O> = Vec::new();
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loop {
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match many_matcher(&context, i.clone()) {
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Ok((remaining, many_elem)) => {
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i = remaining;
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elements.push(many_elem);
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}
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the_error @ Err(_) => {
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err = Some(the_error);
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break;
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}
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}
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}
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if elements.is_empty() {
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if let Some(err) = err {
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err?;
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}
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}
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Ok((i, elements))
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}
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}
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