pub fn take_till1<F, Input, Error: ParseError<Input>>(
cond: F
) -> impl Fn(Input) -> IResult<Input, Input, Error> where
Input: InputTakeAtPosition,
F: Fn(<Input as InputTakeAtPosition>::Item) -> bool, Expand description
Returns the longest (at least 1) input slice till a predicate is met.
The parser will return the longest slice till the given predicate (a function that takes the input and returns a bool).
Streaming Specific
Streaming version will return a Err::Incomplete(Needed::new(1)) if the match reaches the
end of input or if there was not match.
Example
use nom::bytes::streaming::take_till1;
fn till_colon(s: &str) -> IResult<&str, &str> {
take_till1(|c| c == ':')(s)
}
assert_eq!(till_colon("latin:123"), Ok((":123", "latin")));
assert_eq!(till_colon(":empty matched"), Err(Err::Error(Error::new(":empty matched", ErrorKind::TakeTill1))));
assert_eq!(till_colon("12345"), Err(Err::Incomplete(Needed::new(1))));
assert_eq!(till_colon(""), Err(Err::Incomplete(Needed::new(1))));