run emacs.app or emacsclient on Mac OS X

emacs.sh

function e() {
    if [ -z `pgrep Emacs` ]; then
        env LANG=C open -a Emacs "$@"
        return
    fi

    local client="/Applications/MacPorts/Emacs.app/Contents/MacOS/bin/emacsclient"
    local uid=`id -u`
    local socket="$TMPDIR"/emacs"$uid"/server

    if [ ! -e "$socket" ]; then
        socket=`getconf DARWIN_USER_TEMP_DIR`emacs"$uid"/server
    fi

    $client -n -s $socket "$@"
}