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-rw-r--r--lisp/textmodes/texnfo-upd.el52
1 files changed, 34 insertions, 18 deletions
diff --git a/lisp/textmodes/texnfo-upd.el b/lisp/textmodes/texnfo-upd.el
index 6a63108a134..df05b670095 100644
--- a/lisp/textmodes/texnfo-upd.el
+++ b/lisp/textmodes/texnfo-upd.el
@@ -1145,24 +1145,40 @@ For example, \"unnumberedsubsec\". Return \"top\" for top node.
Searches forward for a section. Hence, point must be before the
section whose type will be found. Does not move point. Signal an
error if the node is not the top node and a section is not found."
- (let ((case-fold-search t))
- (save-excursion
- (cond
- ((re-search-forward "^@node [ \t]*top[ \t]*\\(,\\|$\\)"
- ;; Following search limit by cph but causes a bug
- ;;(line-end-position)
- nil
- t)
- "top")
- ((re-search-forward texinfo-section-types-regexp nil t)
- (buffer-substring-no-properties
- (progn (beginning-of-line) ; copy its name
- (1+ (point)))
- (progn (forward-word 1)
- (point))))
- (t
- (error
- "texinfo-specific-section-type: Chapter or section not found"))))))
+ (let* ((case-fold-search t)
+ ;; The Texinfo manual has a second Top node inside @verbatim
+ ;; near the end, which dupes us into thinking we are at top
+ ;; level, no matter where we are when invoked. We don't
+ ;; really grok @verbatim, so we cheat: only consider us to be
+ ;; at top level if the position of the Top node we found is
+ ;; before any other sectioning command.
+ (top-pos (save-excursion
+ (re-search-forward "^@node [ \t]*top[ \t]*\\(,\\|$\\)"
+ ;; Following search limit causes a bug
+ ;;(line-end-position)
+ nil
+ t)))
+ (sec-pos (save-excursion
+ (re-search-forward texinfo-section-types-regexp nil t)))
+ sec-name)
+ (if sec-pos
+ (save-excursion
+ (goto-char sec-pos)
+ (setq sec-name (buffer-substring-no-properties
+ (progn (beginning-of-line) ; copy its name
+ (1+ (point)))
+ (progn (forward-word 1)
+ (point))))))
+ (cond
+ ((or sec-pos top-pos)
+ (if (and top-pos sec-pos)
+ (if (< top-pos sec-pos)
+ "top"
+ sec-name)
+ (or sec-name "top")))
+ (t
+ (error
+ "texinfo-specific-section-type: Chapter or section not found")))))
(defun texinfo-hierarchic-level ()
"Return the general hierarchical level of the next node in a texinfo file.