New interactive export functions for 'e-latex back-end

* EXPERIMENTAL/org-e-latex.el (org-e-latex-export-to-latex,
  org-e-latex-export-to-pdf): New functions.
* contrib/lisp/org-export.el (org-export-dispatch): Make use of new
  functions.

EXPERIMENTAL/org-e-latex.el

@@ -1911,7 +1911,71 @@ CONTENTS is nil. INFO is a plist holding contextual information."
 
 
 
-;;; Compilation
+;;; Interactive functions
+
+(defun org-e-latex-export-to-latex
+  (&optional subtreep visible-only body-only ext-plist pub-dir)
+  "Export current buffer to a LaTeX file.
+
+If narrowing is active in the current buffer, only export its
+narrowed part.
+
+If a region is active, export that region.
+
+When optional argument SUBTREEP is non-nil, export the sub-tree
+at point, extracting information from the headline properties
+first.
+
+When optional argument VISIBLE-ONLY is non-nil, don't export
+contents of hidden elements.
+
+When optional argument BODY-ONLY is non-nil, only write code
+between \"\\begin{document}\" and \"\\end{document}\".
+
+EXT-PLIST, when provided, is a property list with external
+parameters overriding Org default settings, but still inferior to
+file-local settings.
+
+When optional argument PUB-DIR is set, use it as the publishing
+directory.
+
+Return output file's name."
+  (interactive)
+  (let ((outfile (org-export-output-file-name ".tex" subtreep pub-dir)))
+    (org-export-to-file
+     'e-latex outfile subtreep visible-only body-only ext-plist)))
+
+(defun org-e-latex-export-to-pdf
+  (&optional subtreep visible-only body-only ext-plist pub-dir)
+  "Export current buffer to LaTeX then process through to PDF.
+
+If narrowing is active in the current buffer, only export its
+narrowed part.
+
+If a region is active, export that region.
+
+When optional argument SUBTREEP is non-nil, export the sub-tree
+at point, extracting information from the headline properties
+first.
+
+When optional argument VISIBLE-ONLY is non-nil, don't export
+contents of hidden elements.
+
+When optional argument BODY-ONLY is non-nil, only write code
+between \"\\begin{document}\" and \"\\end{document}\".
+
+EXT-PLIST, when provided, is a property list with external
+parameters overriding Org default settings, but still inferior to
+file-local settings.
+
+When optional argument PUB-DIR is set, use it as the publishing
+directory.
+
+Return PDF file's name."
+  (interactive)
+  (org-e-latex-compile
+   (org-e-latex-export-to-latex
+    subtreep visible-only body-only ext-plist pub-dir)))
 
 (defun org-e-latex-compile (texfile)
   "Compile a TeX file.

contrib/lisp/org-export.el

@@ -2797,23 +2797,21 @@ Return an error if key pressed has no associated command."
     ;; depending on user's key pressed.
     (case (if (< raw-key 27) (+ raw-key 96) raw-key)
       ;; Export with `e-latex' back-end.
-      (?L (let ((outbuf (org-export-to-buffer
+      (?L
-			 'e-latex "*Org E-latex Export*"
+       (let ((outbuf
-			 (memq 'subtree scope)
+	      (org-export-to-buffer
-			 (memq 'visible scope)
+	       'e-latex "*Org E-LaTeX Export*"
-			 (memq 'body scope))))
+	       (memq 'subtree scope) (memq 'visible scope) (memq 'body scope))))
 	 (with-current-buffer outbuf (latex-mode))
 	 (when org-export-show-temporary-export-buffer
 	   (switch-to-buffer-other-window outbuf))))
-      ((?l ?p ?d)
+      (?l (org-e-latex-export-to-latex
-       (org-export-to-file
+	   (memq 'subtree scope) (memq 'visible scope) (memq 'body scope)))
-	'e-latex
+      (?p (org-e-latex-export-to-pdf
-	(cond ((eq raw-key ?p) #'org-e-latex-compile)
+	   (memq 'subtree scope) (memq 'visible scope) (memq 'body scope)))
-	      ((eq raw-key ?d)
+      (?d (org-open-file
-	       (lambda (file) (org-open-file (org-e-latex-compile file)))))
+	   (org-e-latex-export-to-pdf
-	(memq 'subtree scope)
+	    (memq 'subtree scope) (memq 'visible scope) (memq 'body scope))))
-	(memq 'visible scope)
-	(memq 'body scope)))
       ;; Undefined command.
       (t (error "No command associated with key %s"
 		(char-to-string raw-key))))))