diff --git a/en b/en
index b536740..7ebea22 100755
--- a/en
+++ b/en
@@ -16,8 +16,10 @@ fi
 
 if test -z "$1"; then
 	set -- /dev/stdin
-	HIGHLIGHT_OPTIONS="$HIGHLIGHT_OPTIONS --syntax=none"
-	export HIGHLIGHT_OPTIONS
+	export HIGHLIGHT_OPTIONS="$HIGHLIGHT_OPTIONS -S none"
+else
+	export HIGHLIGHT_OPTIONS="$HIGHLIGHT_OPTIONS -S \
+		$(printf '%s\n' "$1" | sed 's/^.*\.//g')"
 fi
 
 help="$(printf "Commands:\n\
@@ -70,7 +72,7 @@ while test -n "$1"; do
 			"c") clear ;;
 			"d")
 				if test -z "$args"; then
-					printf "%s: %s: Missing argument.\n" "$0" "$command" 1>&2
+					printf "%s: %s: missing argument.\n" "$0" "$command" 1>&2
 				else
 					for line in $(printf "%s\n" "$args" | sed 's/,/\n/g')
 					do
@@ -82,12 +84,9 @@ while test -n "$1"; do
 			"e")
 				eval "$args" || true
 				;;
-			"h")
-				HIGHLIGHT_OPTIONS="$HIGHLIGHT_OPTIONS --syntax=$args"
-				export HIGHLIGHT_OPTIONS
-				;;
+			"h") export HIGHLIGHT_OPTIONS="$HIGHLIGHT_OPTIONS -S $args" ;;
 			"i")
-				printf "%s: i: Command not implemented.\n" "$0" 1>&2
+				printf "%s: i: command not implemented.\n" "$0" 1>&2
 				;;
 			"p")
 				printf "%s\n" "$content" | highlight | nl -ba >/dev/tty
@@ -99,7 +98,7 @@ while test -n "$1"; do
 			"x") exit ;;
 			"") ;;
 			*)
-				printf "%s: %s: unrecognized command\n" "$0" "$command"
+				printf "%s: %s: unrecognized command\n%s\n" "$0" "$command" "$help"
 				;;
 		esac
 	done