texinfo-format-separate-node makes duplicated footnote node

[TAKAHASHI Kaoru]

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In GNU Emacs 21.2.1 (i386--freebsd, X toolkit, Xaw3d scroll bars)
 of 2002-10-28 on rave.kaoru.trans-nt.com
configured using `configure  --x-libraries=/usr/X11R6/lib 
--x-includes=/usr/X11R6/include --prefix=/usr/local i386--freebsd'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: ja_JP.eucJP
  value of $LC_MESSAGES: C
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: C
  value of $LC_TIME: C
  value of $LANG: C
  locale-coding-system: japanese-iso-8bit
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

Following texinfo file save as example.texi.
(setq texinfo-footnote-style "separate")
C-c C-f example.texi, and M-x texinfo-format-buffer.

Generate duplicated footnote node (Node: C++-Footnotes) in
example.info buffer.

Line "File: example.info Node: C++-Footnotes, Up: C++" is should
be only one.  but exist three lines.


----------------------------------------------------------------
\input texinfo @c -*-texinfo -*-
@c %**start of header
@setfilename example.info
@c %**end of header

@node Top, C++, (dir), (dir)
@top Top

@menu
* C++::                         "C++" is invalid regexp.
@end menu

@node C++,  , Top, Top
@chapter C++

@footnote{foo.}

@footnote{bar.}

@footnote{baz.}

@bye
----------------------------------------------------------------

When regexp special character (e.g. "+") in node-name ("C++"),
re-search-backward can't found footnode node.

Use search-backward instead of re-search-backward:

Index: texinfmt.el
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/textmodes/texinfmt.el,v
retrieving revision 1.58
diff -u -F^( -r1.58 texinfmt.el
--- texinfmt.el 29 Oct 2002 07:53:08 -0000      1.58
+++ texinfmt.el 22 Nov 2002 12:26:22 -0000
@@ -1467,7 +1467,7 @@ (defun texinfo-format-separate-node ()
     ;; the text of the  footnote.
 
     (if (save-excursion
-         (re-search-backward
+         (search-backward
           (concat node-name "-Footnotes, Up: ")
           node-name-beginning
           t))


2002-11-22  TAKAHASHI Kaoru  <kaoru@kaisei.org>

        * textmodes/texinfmt.el (texinfo-format-separate-node): Use
        search-backward instead of re-search-backward, for footnote
        node.


Recent input:
C-n C-n C-n C-e C-x C-e C-x C-s C-x b <return> M-x 
t e x i n f SPC o SPC f o SPC b u SPC <return> C-n 
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n 
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n 
C-n C-n C-n C-n C-n C-n C-n C-p C-p C-p C-p C-n C-n 
C-SPC C-p C-SPC C-n M-w C-x k <return> y e s <return> 
<escape> < C-x C-g M-x r e p o r t SPC e m a SPC b 
u SPC <return>

Recent messages:
Formatting Info file: example.info
Converting example.texi to Info format...
Formatting: Top ... 
Formatting: C++ ... 
Tagifying example.info ...
Tagifying example.info done
Formatting Info file...done.  Now save it.
Auto-saving...done
Mark set [3 times]
Loading emacsbug...done