//! Rules defined in [RFC 2234].
//!//! [RFC 2234]: https://datatracker.ietf.org/doc/html/rfc2234
usecrate::parsing::ParsedItem;/// Consume exactly one space or tab.
pub(crate)constfnwsp(input:&[u8])->Option<ParsedItem<'_, ()>>{match input {[b''|b'\t', rest @..]=>Some(ParsedItem(rest,())),_=>None,}}