Update contributed slide output to use uppercase properties

* contrib/lisp/ox-deck.el: Change menu key to ?d to avoid conflict
  with ox-s5.
(org-deck-toc): Use HTML_CONTAINER_CLASS instead of html-container-class.
(org-deck-headline): Simplify code to use HTML_CONTAINER_CLASS
directly, and use org-element-get-relative-level.
(org-deck-item): Use uppercase property.

* contrib/lisp/ox-s5.el (s5): Add configuration variables for S5 meta data.
(org-s5--build-meta-info): ditto.
(org-s5-headline): Simplify code to use HTML_CONTAINER_CLASS directly,
and use org-element-get-relative-level.
(org-s5-plain-list): Use uppercase property.
(org-s5-template-alist): Fix bug. (Don't try and substring nil.)

contrib/lisp/ox-deck.el

@@ -40,7 +40,7 @@
 
 (org-export-define-derived-backend deck html
   :menu-entry
-  (?s "Export to deck.js HTML Presentation"
+  (?d "Export to deck.js HTML Presentation"
       ((?H "To temporary buffer" org-deck-export-as-html)
        (?h "To file" org-deck-export-to-html)
        (?o "To file and open"
@@ -253,7 +253,7 @@ Note that the wrapper div must include the class \"slide\"."
     (org-html-toc-text
      (mapcar
       (lambda (headline)
-	(let* ((class (org-element-property :html-container-class headline))
+	(let* ((class (org-element-property :HTML_CONTAINER_CLASS headline))
 	       (section-number
 		(when
 		    (and (not (org-export-low-level-p headline info))
@@ -332,12 +332,12 @@ holding export options."
    "\n"))
 
 (defun org-deck-headline (headline contents info)
-  (let ((org-html-toplevel-hlevel 2))
-    (org-html-headline
-     (if (= 1 (+ (org-element-property :level headline)
-		 (plist-get info :headline-offset)))
-         (org-element-put-property headline :html-container-class "slide")
-       headline) contents info)))
+  (let ((org-html-toplevel-hlevel 2)
+        (class (or (org-element-property :HTML_CONTAINER_CLASS headline) ""))
+        (level (org-export-get-relative-level headline info)))
+    (when (and (= 1 level) (not (string-match-p "\\<slide\\>" class)))
+      (org-element-put-property headline :HTML_CONTAINER_CLASS (concat class " slide")))
+  (org-html-headline headline contents info)))
 
 (defun org-deck-item (item contents info)
   "Transcode an ITEM element from Org to HTML.
@@ -347,8 +347,8 @@ If the containing headline has the property :slide, then
 the \"slide\" class will be added to the to the list element,
  which will make the list into a \"build\"."
   (let ((text (org-html-item item contents info)))
-    (if (org-export-get-node-property :step item t)
-	(replace-regexp-in-string "^<li>" "<li class='slide'>" text)
+    (if (org-export-get-node-property :STEP item t)
+        (replace-regexp-in-string "^<li>" "<li class='slide'>" text)
       text)))
 
 (defun org-deck-template-alist (info)

contrib/lisp/ox-s5.el

@@ -37,7 +37,7 @@
 ;; Follow the general instructions at the above website. To generate
 ;; incremental builds, you can set the HTML_CONTAINER_CLASS on an
 ;; object to "incremental" to make it build. If you want an outline to
-;; build, set the` INCREMENTAL property on the parent headline.
+;; build, set the :INCREMENTAL property on the parent headline.
 
 ;; To test it, run:
 ;;
@@ -68,7 +68,9 @@
    (:html-style-include-scripts "HTML_INCLUDE_SCRIPTS" nil nil)
    (:s5-version "S5_VERSION" nil org-s5-version)
    (:s5-theme-file "S5_THEME_FILE" nil org-s5-theme-file)
-   (:s5-ui-url "S5_UI_URL" nil org-s5-ui-url))
+   (:s5-ui-url "S5_UI_URL" nil org-s5-ui-url)
+   (:s5-default-view "S5_DEFAULT_VIEW" nil org-s5-default-view)
+   (:s5-control-visibility "S5_CONTROL_VISIBILITY" nil org-s5-control-visibility))
   :translate-alist
   ((headline . org-s5-headline)
    (plain-list . org-s5-plain-list)
@@ -196,30 +198,26 @@ Note that the wrapper div must include the class \"slide\"."
 (defun org-s5--build-meta-info (info)
   (concat
    (org-html--build-meta-info info)
-   (format "<meta name=\"version\" content=\"S5 %s\" />"
+   (format "<meta name=\"version\" content=\"S5 %s\" />\n"
 	   (plist-get info :s5-version))
-   "<meta name='defaultView' content='slideshow' />\n"
-   "<meta name='controlVis' content='hidden' />"))
+   (format "<meta name='defaultView' content='%s' />\n"
+           (plist-get info :s5-default-view))
+   (format "<meta name='controlVis' content='%s' />"
+           (plist-get info :s5-control-visibility))))
 
 (defun org-s5-headline (headline contents info)
-  (let ((org-html-toplevel-hlevel 1))
-    (org-html-headline
-     (if (= 1 (+ (org-element-property :level headline)
-		 (plist-get info :headline-offset)))
-         (org-element-put-property
-	  headline :html-container-class
-	  (mapconcat 'identity
-		     (list
-		      (org-element-property
-		       :html-container-class headline)
-		      "slide") " "))
-	  headline) contents info)))
+  (let ((org-html-toplevel-hlevel 1)
+        (class (or (org-element-property :HTML_CONTAINER_CLASS headline) ""))
+        (level (org-export-get-relative-level headline info)))
+    (when (and (= 1 level) (not (string-match-p "\\<slide\\>" class)))
+      (org-element-put-property headline :HTML_CONTAINER_CLASS (concat class " slide")))
+    (org-html-headline headline contents info)))
 
 (defun org-s5-plain-list (plain-list contents info)
   "Transcode a PLAIN-LIST element from Org to HTML.
 CONTENTS is the contents of the list.  INFO is a plist holding
 contextual information.
-If a containing headline has the property :incremental,
+If a containing headline has the property :INCREMENTAL,
 then the \"incremental\" class will be added to the to the list,
 which will make the list into a \"build\"."
   (let* ((type (org-element-property :type plain-list))
@@ -230,7 +228,7 @@ which will make the list into a \"build\"."
     (format "%s\n%s%s"
 	    (format
 	     "<%s class='org-%s%s'>" tag tag
-	     (if (org-export-get-node-property :incremental plain-list t)
+	     (if (org-export-get-node-property :INCREMENTAL plain-list t)
 		 " incremental" ""))
 	    contents (org-html-end-plain-list type))))
 
@@ -239,7 +237,7 @@ which will make the list into a \"build\"."
    ("title"  . ,(car (plist-get info :title)))
    ("author" . ,(car (plist-get info :author)))
    ("email"  . ,(plist-get info :email))
-   ("date"   . ,(substring (nth 0 (plist-get info :date)) 0 10))
+   ("date"   . ,(nth 0 (plist-get info :date)))
    ("file"   . ,(plist-get info :input-file))))
 
 (defun org-s5-template (contents info)