;; smil-tags.lisp --- 

;; Copyright (C) 2008 Clinton Ebadi <clinton@unknownlamer.org>

;; Author: Clinton Ebadi <clinton@unknownlamer.org>

;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU Lesser General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU Lesser General Public License
;; along with this program.  If not, see <http://www.gnu.org/licenses/>.

(in-package :org.unknownlamer.golgonooza.smil-tags)

(defmacro def-smil-tag (name &rest attributes)
  (let ((tag-name (string-downcase (symbol-name name)))
	(frobbed-attributes (mapcan (lambda (a)
				      (list (string-downcase (symbol-name a))
					    a))
				    attributes)))
    `(deftag ,name (&attribute ,@attributes &body body)
       (emit-open-tag ,tag-name
		      (list ,@frobbed-attributes))
       (emit-body body)
       (emit-close-tag ,tag-name))))

(defmacro def-empty-smil-tag (name &rest attributes)
  (let ((tag-name (string-downcase (symbol-name name)))
	(frobbed-attributes (mapcan (lambda (a)
				      (list (string-downcase (symbol-name a))
					    a))
				    attributes)))
    `(deftag ,name (&attribute ,@attributes)
       (emit-empty-tag ,tag-name (list ,@frobbed-attributes)))))


(def-smil-tag smil)
(def-smil-tag head)
(def-smil-tag body)
(def-smil-tag seq)
(def-empty-smil-tag video src type)
(def-empty-smil-tag audio src type)