Improve argument handling

hell.sh

@@ -123,27 +123,29 @@ tag()
 	case "$1" in
 		-i) # inline
 			tagstack="$INLINES"
+			shift
 			;;
 		-b) # block
 			tagstack="$BLOCKS"
+			shift
 			;;
 		*) # other -- default to block
 			tagstack="$BLOCKS"
 			;;
 	esac
 
-	case "$2" in
+	case "$1" in
 		*/) # set this tag to auto-close. don't push it onto the stack.
 			autoclose=true
-			tag="${2%/}"
+			tag="${1%/}"
 			;;
 		*) # begin a tag and push it onto the stack.
-			tag="$2"
+			tag="$1"
 			push "$tagstack" "$tag"
 			;;
 	esac
 
-	shift 2
+	shift
 	parseterms "$@" # parse the rest of the arguments
 
 	if "$autoclose" && [ -z "$text" ]; then