# open vim with a scratch window that can be discarded on exit.
vimscratch() {
    local args
    # if running in a pipe, use stdin (-) as arg.
    # -t checks if the given FD is a terminal
    if [ ! -t 0 ] ; then
        stdin_arg="-"
    fi
    set +x
    if [[ -n "$1" ]]; then
        filetype=$1
        shift
        vim -c "set buftype=nofile" -c "set filetype=$filetype" $@ $stdin_arg
    else
        vim -c "set buftype=nofile" $filetype_arg $@ $stdin_arg
    fi

}