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+;;; mastermenu.el --- Redefinition of texinfo-master-menu-list
+
+;; Copyright (C) 2006 Free Software Foundation, Inc.
+
+;; Author: Sergey Poznyakoff
+;; Maintainer: bug-tar@gnu.org
+;; Keywords: maint, tex, docs
+
+;; This file is part of GNU tar documentation suite
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, 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 General Public License
+;; along with this program; if not, write to the Free Software Foundation,
+;; Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+;;; Commentary:
+
+;; This file redefines texinfo-master-menu-list so that it takes into
+;; account included files.
+
+;; Known bugs: @menu without previous sectioning command will inherit 
+;; documentation string from the previous menu. However, since such a
+;; menu is illegal in a texinfo file, we can live with it.
+
+(require 'texinfo)  
+(require 'texnfo-upd)
+
+(defun texinfo-master-menu-list-recursive (title)
+  "Auxiliary function used by `texinfo-master-menu-list'."
+  (save-excursion
+    (let (master-menu-list)
+      (while (re-search-forward "\\(^@menu\\|^@include\\)" nil t)
+	(cond
+	 ((string= (match-string 0) "@include")
+	  (skip-chars-forward " \t")
+	  (let ((included-name (let ((start (point)))
+				 (end-of-line)
+				 (skip-chars-backward " \t")
+				 (buffer-substring start (point)))))
+	    (end-of-line)
+	    (let ((prev-title (texinfo-copy-menu-title)))
+	      (save-excursion
+		(set-buffer (find-file-noselect included-name))
+		(setq master-menu-list
+		      (append (texinfo-master-menu-list-recursive prev-title)
+			      master-menu-list))))))
+	 (t
+	  (setq master-menu-list
+		(cons (list
+		       (texinfo-copy-menu)
+		       (let ((menu-title (texinfo-copy-menu-title)))
+			 (if (string= menu-title "")
+			     title
+			   menu-title)))
+		      master-menu-list)))))
+      master-menu-list)))
+
+(defun texinfo-master-menu-list ()
+  "Return a list of menu entries and header lines for the master menu,
+recursing into included files.
+
+Start with the menu for chapters and indices and then find each
+following menu and the title of the node preceding that menu.
+
+The master menu list has this form:
+
+    \(\(\(... \"entry-1-2\"  \"entry-1\"\) \"title-1\"\)
+      \(\(... \"entry-2-2\"  \"entry-2-1\"\) \"title-2\"\)
+      ...\)
+
+However, there does not need to be a title field."
+
+  (reverse (texinfo-master-menu-list-recursive "")))
+
+(defun make-master-menu ()
+  "Create master menu in the first Emacs argument."
+  (find-file (car command-line-args-left))
+  (texinfo-master-menu nil)
+  (save-buffer))
+
+
+;;; mastermenu.el ends here