Function neure::re::regex::sep_once

pub fn sep_once<'a, C, L, S, R>(
    left: L,
    sep: S,
    right: R
) -> RegexSepOnce<C, L, S, R>where
    L: Regex<C>,
    S: Regex<C>,
    R: Regex<C>,
    C: Context<'a> + Match<C>,