Function mode

alpm-mtree/src/parser.rs:193–200

Parse a filesystem mode. Should be between 3-5 octal numbers **without** a `0o` prefix.

(input: &mut &'s str)

///
/// Should be between 3-5 octal numbers **without** a `0o` prefix.
fn mode<'s>(input: &mut &'s str) -> ModalResult<&'s str> {
    cut_err(take_while(3..5, AsChar::is_oct_digit))
        .context(StrContext::Label("file mode"))
        .context(StrContext::Expected(StrContextValue::Description(
            "octal string of length 3-5.",
        )))
        .parse_next(input)
}

/// Parse a SHA-256 hash.
fn sha256(input: &mut &str) -> ModalResult<Sha256Checksum> {