···

       
123
       
123
       
 
       


     

       
124
       
124
       
 
       
case $PREFON_ACTION in

     

       
125
       
125
       
 
       
	file  ) [ -e "$PREFON_FILE" ] || { info e "'$PREFON_FILE' does not exist"; exit 1; }

     

       
126
       
126
       
-
       
		wa ;;

     

       
126
       
126
       
+
       
		read_input ;;

     

       
127
       
127
       
 
       
	stdin ) [ -e /dev/stdin ] || { info e "/dev/stdin does not exist"; exit 1; }

     

       
128
       
128
       
-
       
		wa ;;

     

       
128
       
128
       
+
       
		read_input ;;

     

       
129
       
129
       
 
       
	text  ) [ "$PREFON_TEXT" ] || { info e "string not provided"; exit 1; }

     

       
130
       
130
       
 
       
		generate_image "$PREFON_TEXT" ;;

     

       
131
       
131
       
 
       
	*     ) info e invalid action: $PREFON_ACTION; exit 1 ;;