; Part a channel when someone on the avoid list is in it, or joins later.

on LOAD {
    set %avoid $list(somenick, someothernick)
    set %avoid_wait $map()
}

on JOIN {
    if ($isme == true) {
        ; Scripts can't read the member list, so ask the server who is here.
        setat %avoid_wait $lower($chan) wait
        who $chan
        return
    }
    if ($has(%avoid, $lower($nick)) == true) {
        part $chan
    }
}

on NUMERIC {
    ; 352 is one WHO line: <channel> <nick> <flags> <user@host> ...
    if ($code == 352) {
        set -l %w $split($text)
        set -l %c $lower($get(%w, 0))
        set -l %state $get(%avoid_wait, %c)
        if (%state != wait && %state != left) { return }
        if (%state == wait && $has(%avoid, $lower($get(%w, 1))) == true) {
            setat %avoid_wait %c left
            part $get(%w, 0)
        }
        halt
    }
    ; 315 ends the WHO reply: <channel>: End of WHO list
    if ($code == 315) {
        set -l %c $lower($replace($get($split($text), 0), ":", ""))
        set -l %state $get(%avoid_wait, %c)
        if (%state != wait && %state != left) { return }
        setat %avoid_wait %c done
        halt
    }
}