Function winnow::ascii::alphanumeric1
source · pub fn alphanumeric1<Input, Error>(
input: &mut Input
) -> PResult<<Input as Stream>::Slice, Error>
Expand description
Recognizes one or more ASCII numerical and alphabetic characters: 'a'..='z'
, 'A'..='Z'
, '0'..='9'
Complete version: Will return an error if there’s not enough input data, or the whole input if no terminating token is found (a non alphanumerical character).
[Partial version][crate::_topic::partial]: Will return Err(winnow::error::ErrMode::Incomplete(_))
if there’s not enough input data,
or if no terminating token is found (a non alphanumerical character).
§Effective Signature
Assuming you are parsing a &str
Stream:
pub fn alphanumeric1<'i>(input: &mut &'i str) -> PResult<&'i str>
§Example
fn parser<'s>(input: &mut &'s str) -> PResult<&'s str, InputError<&'s str>> {
alphanumeric1.parse_next(input)
}
assert_eq!(parser.parse_peek("21cZ%1"), Ok(("%1", "21cZ")));
assert_eq!(parser.parse_peek("&H2"), Err(ErrMode::Backtrack(InputError::new("&H2", ErrorKind::Slice))));
assert_eq!(parser.parse_peek(""), Err(ErrMode::Backtrack(InputError::new("", ErrorKind::Slice))));
assert_eq!(alphanumeric1::<_, InputError<_>>.parse_peek(Partial::new("21cZ%1")), Ok((Partial::new("%1"), "21cZ")));
assert_eq!(alphanumeric1::<_, InputError<_>>.parse_peek(Partial::new("&H2")), Err(ErrMode::Backtrack(InputError::new(Partial::new("&H2"), ErrorKind::Slice))));
assert_eq!(alphanumeric1::<_, InputError<_>>.parse_peek(Partial::new("")), Err(ErrMode::Incomplete(Needed::new(1))));