pub fn take_until1<T, Input, Error>(tag: T) -> impl Fn(Input)where
    Error: ParseError<Input>,
    Input: InputTake + InputLength + FindSubstring<T>,
    T: Clone,
Available on crate feature mtls only.
Expand description

Returns the non empty input slice up to the first occurrence of the pattern.

It doesn’t consume the pattern.

Streaming Specific

Streaming version will return a Err::Incomplete(Needed::new(N)) if the input doesn’t contain the pattern or if the input is smaller than the pattern.

Example

use nom::bytes::streaming::take_until1;

fn until_eof(s: &str) -> IResult<&str, &str> {
  take_until1("eof")(s)
}

assert_eq!(until_eof("hello, worldeof"), Ok(("eof", "hello, world")));
assert_eq!(until_eof("hello, world"), Err(Err::Incomplete(Needed::Unknown)));
assert_eq!(until_eof("hello, worldeo"), Err(Err::Incomplete(Needed::Unknown)));
assert_eq!(until_eof("1eof2eof"), Ok(("eof2eof", "1")));
assert_eq!(until_eof("eof"),  Err(Err::Error(Error::new("eof", ErrorKind::TakeUntil))));