org-e-publish: Move publishing functions into back-end libraries

* contrib/lisp/org-e-ascii.el (org-e-ascii-publish-to-ascii,
  org-e-ascii-publish-to-latin1, org-e-ascii-publish-to-utf8): New
  functions.
* contrib/lisp/org-e-html.el (org-e-html-publish-to-html): New
  function.
* contrib/lisp/org-e-latex.el (org-e-latex-publish-to-latex,
  org-e-latex-publish-to-pdf): New functions.
* contrib/lisp/org-e-publish.el (org-e-publish-org-to-latex,
  org-e-publish-org-to-pdf, org-e-publish-org-to-ascii,
  org-e-publish-org-to-latin1, org-e-publish-org-to-utf8,
  org-e-publish-org-to-html): Remove functions.

Each back-end can define its own publishing functions.  This patch
avoids to clutter org-e-publish.el.

contrib/lisp/org-e-ascii.el

@@ -37,6 +37,7 @@
 
 (eval-when-compile (require 'cl))
 (require 'org-export)
+(require 'org-e-publish)
 
 (declare-function aa2u "ext:ascii-art-to-unicode" ())
 
@@ -1794,7 +1795,7 @@ This function only applies to `e-ascii' back-end.  See
 
 
 
-;;; Interactive function
+;;; End-user functions
 
 ;;;###autoload
 (defun org-e-ascii-export-as-ascii
@@ -1864,6 +1865,42 @@ Return output file's name."
     (org-export-to-file
      'e-ascii outfile subtreep visible-only body-only ext-plist)))
 
+;;;###autoload
+(defun org-e-ascii-publish-to-ascii (plist filename pub-dir)
+  "Publish an Org file to ASCII.
+
+FILENAME is the filename of the Org file to be published.  PLIST
+is the property list for the given project.  PUB-DIR is the
+publishing directory.
+
+Return output file name."
+  (org-e-publish-org-to
+   'e-ascii filename ".txt" `(:ascii-charset ascii ,@plist) pub-dir))
+
+;;;###autoload
+(defun org-e-ascii-publish-to-latin1 (plist filename pub-dir)
+  "Publish an Org file to Latin-1.
+
+FILENAME is the filename of the Org file to be published.  PLIST
+is the property list for the given project.  PUB-DIR is the
+publishing directory.
+
+Return output file name."
+  (org-e-publish-org-to
+   'e-ascii filename ".txt" `(:ascii-charset latin1 ,@plist) pub-dir))
+
+;;;###autoload
+(defun org-e-ascii-publish-to-utf8 (plist filename pub-dir)
+  "Publish an org file to UTF-8.
+
+FILENAME is the filename of the Org file to be published.  PLIST
+is the property list for the given project.  PUB-DIR is the
+publishing directory.
+
+Return output file name."
+  (org-e-publish-org-to
+   'e-ascii filename ".txt" `(:ascii-charset utf-8 ,@plist) pub-dir))
+
 
 (provide 'org-e-ascii)
 ;;; org-e-ascii.el ends here

contrib/lisp/org-e-html.el

@@ -36,6 +36,7 @@
 ;;; Dependencies
 
 (require 'org-export)
+(require 'org-e-publish)
 (require 'format-spec)
 (eval-when-compile (require 'cl) (require 'table))
 
@@ -2806,7 +2807,7 @@ contextual information."
       (buffer-substring-no-properties (point-min) (point-max)))))
 
 
-;;; Interactive functions
+;;; End-user functions
 
 ;;;###autoload
 (defun org-e-html-export-as-html
@@ -2880,6 +2881,17 @@ Return output file's name."
     (org-export-to-file
      'e-html file subtreep visible-only body-only ext-plist)))
 
+;;;###autoload
+(defun org-e-html-publish-to-html (plist filename pub-dir)
+  "Publish an org file to HTML.
+
+FILENAME is the filename of the Org file to be published.  PLIST
+is the property list for the given project.  PUB-DIR is the
+publishing directory.
+
+Return output file name."
+  (org-e-publish-org-to 'e-html filename ".html" plist pub-dir))
+
 
 
 ;;; FIXME

contrib/lisp/org-e-latex.el

@@ -37,6 +37,7 @@
 
 (eval-when-compile (require 'cl))
 (require 'org-export)
+(require 'org-e-publish)
 
 (defvar org-export-latex-default-packages-alist)
 (defvar org-export-latex-packages-alist)
@@ -2556,7 +2557,7 @@ contextual information."
 
 
 
-;;; Interactive functions
+;;; End-user functions
 
 ;;;###autoload
 (defun org-e-latex-export-as-latex
@@ -2734,6 +2735,33 @@ none."
 	      (setq errors (concat errors " " (cdr latex-error)))))
 	  (and (org-string-nw-p errors) (org-trim errors)))))))
 
+;;;###autoload
+(defun org-e-latex-publish-to-latex (plist filename pub-dir)
+  "Publish an Org file to LaTeX.
+
+FILENAME is the filename of the Org file to be published.  PLIST
+is the property list for the given project.  PUB-DIR is the
+publishing directory.
+
+Return output file name."
+  (org-e-publish-org-to 'e-latex filename ".tex" plist pub-dir))
+
+;;;###autoload
+(defun org-e-latex-publish-to-pdf (plist filename pub-dir)
+  "Publish an Org file to PDF (via LaTeX).
+
+FILENAME is the filename of the Org file to be published.  PLIST
+is the property list for the given project.  PUB-DIR is the
+publishing directory.
+
+Return output file name."
+  ;; Unlike to `org-e-latex-publish-to-latex', PDF file is generated
+  ;; in working directory and then moved to publishing directory.
+  (org-e-publish-attachment
+   plist
+   (org-e-latex-compile (org-e-publish-org-to 'e-latex filename ".tex" plist))
+   pub-dir))
+
 
 (provide 'org-e-latex)
 ;;; org-e-latex.el ends here

contrib/lisp/org-e-publish.el

@@ -538,7 +538,7 @@ matching filenames."
 
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;; Pluggable publishing back-end functions
+;;; Tools for publishing functions in back-ends
 
 (defun org-e-publish-org-to (backend filename extension plist &optional pub-dir)
   "Publish an Org file to a specified back-end.
@@ -574,88 +574,6 @@ Return output file name."
       (unless visitingp (kill-buffer work-buffer)))))
 
 (defvar project-plist)
-(defun org-e-publish-org-to-latex (plist filename pub-dir)
-  "Publish an Org file to LaTeX.
-
-FILENAME is the filename of the Org file to be published.  PLIST
-is the property list for the given project.  PUB-DIR is the
-publishing directory.
-
-Return output file name."
-  (require 'org-e-latex nil t)
-  (org-e-publish-org-to 'e-latex filename ".tex" plist pub-dir))
-
-(defun org-e-publish-org-to-pdf (plist filename pub-dir)
-  "Publish an Org file to PDF \(via LaTeX).
-
-FILENAME is the filename of the Org file to be published.  PLIST
-is the property list for the given project.  PUB-DIR is the
-publishing directory.
-
-Return output file name."
-  (require 'org-e-latex nil t)
-  ;; Unlike to `org-e-publish-org-to-latex', PDF file is generated in
-  ;; working directory and then moved to publishing directory.
-  (org-e-publish-attachment
-   plist
-   (org-e-latex-compile (org-e-publish-org-to 'e-latex filename ".tex" plist))
-   pub-dir))
-
-(defun org-e-publish-org-to-html (plist filename pub-dir)
-  "Publish an org file to HTML.
-
-FILENAME is the filename of the Org file to be published.  PLIST
-is the property list for the given project.  PUB-DIR is the
-publishing directory.
-
-Return output file name."
-  (require 'org-e-html nil t)
-  (org-e-publish-org-to 'e-html filename ".html" plist pub-dir))
-
-;; TODO: Not implemented yet.
-;; (defun org-e-publish-org-to-org (plist filename pub-dir)
-;;   "Publish an org file to HTML.
-;;
-;; FILENAME is the filename of the Org file to be published.  PLIST
-;; is the property list for the given project.  PUB-DIR is the
-;; publishing directory.
-;;
-;; Return output file name."
-;;   (org-e-publish-org-to "org" plist filename pub-dir))
-
-(defun org-e-publish-org-to-ascii (plist filename pub-dir)
-  "Publish an Org file to ASCII.
-
-FILENAME is the filename of the Org file to be published.  PLIST
-is the property list for the given project.  PUB-DIR is the
-publishing directory.
-
-Return output file name."
-  (require 'org-e-ascii nil t)
-  (org-e-publish-org-to
-   'e-ascii filename ".txt" `(:ascii-charset ascii ,@plist) pub-dir))
-
-(defun org-e-publish-org-to-latin1 (plist filename pub-dir)
-  "Publish an Org file to Latin-1.
-
-FILENAME is the filename of the Org file to be published.  PLIST
-is the property list for the given project.  PUB-DIR is the
-publishing directory.
-
-Return output file name."
-  (org-e-publish-org-to
-   'e-ascii filename ".txt" `(:ascii-charset latin1 ,@plist) pub-dir))
-
-(defun org-e-publish-org-to-utf8 (plist filename pub-dir)
-  "Publish an org file to UTF-8.
-
-FILENAME is the filename of the Org file to be published.  PLIST
-is the property list for the given project.  PUB-DIR is the
-publishing directory.
-
-Return output file name."
-  (org-e-publish-org-to
-   'e-ascii filename ".txt" `(:ascii-charset utf-8 ,@plist) pub-dir))
 
 (defun org-e-publish-attachment (plist filename pub-dir)
   "Publish a file with no transformation of any kind.