* textmodes/nroff-mode.el (nroff-view): New command.

(nroff-mode-map): Bind it to C-c C-c.

lisp/ChangeLog

+2010-08-31  Masatake YAMATO  <yamato@redhat.com>
+
+	* textmodes/nroff-mode.el (nroff-view): New command.
+	(nroff-mode-map): Bind it to C-c C-c.
+
 2010-08-31  Stefan Monnier  <monnier@iro.umontreal.ca>
 	* emacs-lisp/smie.el (smie-down-list): New command.

lisp/textmodes/nroff-mode.el

@@ -55,6 +55,7 @@
     (define-key map "\n"  'nroff-electric-newline)
     (define-key map "\en" 'nroff-forward-text-line)
     (define-key map "\ep" 'nroff-backward-text-line)
+    (define-key map "\C-c\C-c" 'nroff-view)
     (define-key map [menu-bar nroff-mode] (cons "Nroff" menu-map))
     (define-key menu-map [nn]
       '(menu-item "Newline" nroff-electric-newline
@@ -73,6 +74,9 @@
 		  nroff-electric-mode
 		  :help "Auto insert closing requests if necessary"
 		  :button (:toggle . nroff-electric-mode)))
+    (define-key menu-map [npm]
+      '(menu-item "Preview as man page" nroff-view
+		  :help "Run man on this file."))
     map)
   "Major mode keymap for `nroff-mode'.")
 
@@ -301,6 +305,17 @@ turns it on if arg is positive, otherwise off."
   :lighter " Electric"
   (or (derived-mode-p 'nroff-mode) (error "Must be in nroff mode")))
 
+(declare-function Man-getpage-in-background "man" (topic))
+
+(defun nroff-view ()
+  "Run man on this file."
+  (interactive)
+  (require 'man)
+  (let* ((file (buffer-file-name)))
+    (if file
+	(Man-getpage-in-background file)
+      (error "No associated file for the current buffer"))))
+
 ;; Old names that were not namespace clean.
 (define-obsolete-function-alias 'count-text-lines 'nroff-count-text-lines "22.1")
 (define-obsolete-function-alias 'forward-text-line 'nroff-forward-text-line "22.1")