wsh

早期freebsd实现

: run this script through /bin/sh

M="`basename $0`"

case "$mhaltmsg" in
    "")	    ;;

    *)	    editalt="$mhaltmsg" ; export editalt ;;
esac

case "$mheditor" in
    "")	    ;;

    *)	    trap "" 1 2 3 15
	    if $mheditor $mhdraft
	    then
		trap 1 2 3 15
	    else
		case "$mhuse" in
		    0)     echo $M: removing $mhdraft 1>&2; rm -f $mhdraft ;;
		esac
		exit 1
	    fi ;;
esac

PS1="`rprompt %U\("$M:"\`expr $mhdraft : '.*/\(.*/.*\)'\`\)%U%b`"

while :
do
    echo -n "$PS1"; read C
    case "$?$C" in 1) C="quit" ; esac
    set x $C ; shift
    case "$1" in
	quit)     case "$2" in
		      -d*|d*)     rm $mhdraft ;;
		      "")	  echo $M: draft left on $mhdraft 1>&2 ;;
		  esac
		  exit 1 ;;

	push|send|refile)
		  if eval "$@"; then exit 0; fi ;;

	*)	  eval "$@" ;;
    esac
done