rocket::mtls::x509::der_parser::asn1_rs::nom::number::complete

Function be_u8

Source 
pub fn be_u8<I, E>(input: I) -> Result<(I, u8), Err<E>>
where
    E: ParseError<I>,
    I: Slice<RangeFrom<usize>> + InputIter<Item = u8> + InputLength,
Available on crate feature mtls only.
Expand description

Recognizes an unsigned 1 byte integer.

Complete version: Returns an error if there is not enough input data.

use nom::number::complete::be_u8;

let parser = |s| {
  be_u8(s)
};

assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"\x03abcefg"[..], 0x00)));
assert_eq!(parser(&b""[..]), Err(Err::Error((&[][..], ErrorKind::Eof))));