[zsh] Аналог unix-filename-rubout

function backward-kill-to-slash() {
        local WORDCHARS="${WORDCHARS:s,/,} \\\'"

        [[ $BUFFER != */* ]] && return
        [[ $LBUFFER == [^/]##/ ]] && return

        zle backward-kill-word
}

zle -N backward-kill-to-slash

bindkey "^W" backward-kill-to-slash