bug#1116: Emacs hangs when executing Info-final-node

[Sung-Taek Lim]

Thank you. Your patch works!

2008/10/8, martin rudalics <rudalics@gmx.at>:
> > I' running GNU Emacs 22.3.1 (i386-mingw-nt5.1.2600) of 2008-09-07 on
> SOFT-MJASON
> >
> > D:\> runemacs -Q --debug-init
> >
> > C-h i       ;; open *info*
> > Press '>'  ;; execute 'Info-final-node and emacs hangs!
> >
> > Always reproduced.
>
> Would the attached patch help?
>
> martin
>
> *** info.el.~1.501.2.7.~        2008-03-25 14:48:24.000000000 +0100
> --- info.el     2008-10-08 16:52:49.703125000 +0200
> ***************
> *** 2437,2449 ****
>      (Info-goto-node (Info-extract-menu-counting nil))
>      ;; If the last node in the menu is not last in pointer structure,
>      ;; move forward until we can't go any farther.
> !     (while (Info-forward-node t t) nil)
>      ;; Then keep moving down to last subnode, unless we reach an index.
>      (while (and (not (Info-index-node))
>                (save-excursion (search-forward "\n* Menu:" nil t)))
>        (Info-goto-node (Info-extract-menu-counting nil)))))
>
> ! (defun Info-forward-node (&optional not-down no-error)
>    "Go forward one node, considering all nodes as forming one sequence."
>    (interactive)
>    (goto-char (point-min))
> --- 2437,2449 ----
>      (Info-goto-node (Info-extract-menu-counting nil))
>      ;; If the last node in the menu is not last in pointer structure,
>      ;; move forward until we can't go any farther.
> !     (while (Info-forward-node t t t) nil)
>      ;; Then keep moving down to last subnode, unless we reach an index.
>      (while (and (not (Info-index-node))
>                (save-excursion (search-forward "\n* Menu:" nil t)))
>        (Info-goto-node (Info-extract-menu-counting nil)))))
>
> ! (defun Info-forward-node (&optional not-down no-error not-up)
>    "Go forward one node, considering all nodes as forming one sequence."
>    (interactive)
>    (goto-char (point-min))
> ***************
> *** 2461,2467 ****
>          ((save-excursion (search-backward "next:" nil t))
>           (Info-next)
>           t)
> !         ((and (save-excursion (search-backward "up:" nil t))
>                ;; Use string-equal, not equal, to ignore text props.
>                (not (string-equal (downcase (Info-extract-pointer "up"))
>                                   "top")))
> --- 2461,2468 ----
>          ((save-excursion (search-backward "next:" nil t))
>           (Info-next)
>           t)
> !         ((and (not not-up)
> !               (save-excursion (search-backward "up:" nil t))
>                ;; Use string-equal, not equal, to ignore text props.
>                (not (string-equal (downcase (Info-extract-pointer "up"))
>                                   "top")))
>
>
>