>> bothered to follow the switch to Bazaar. It might take a while to make
>> myself acquainted with it. And unfortunately I failed to find a web
>> interface to the current Emacs sources in order to find out if somebody
>> has changed the RefTeX files, or in which way.
> I suspect the change is not in the reftex file but in the behavior of
> up-list which now obeys forward-sexp-function, which means that under
> latex-mode, it will now move from
> \begin{foo}
>> here<
> \end{foo}
> to just before the \begin. So if the reftex code does not expect that
> (and/or for performance reason doesn't want that), it should protect
> against it by binding forward-sexp-function around calls to up-list
> and friends.
I think in the end, the core reason for the problem was a bug in the new
up-list code (it just silently did nothing when reaching BOB), which
I've just fixed. I also additionally installed the patch below which
circumvents the bug and also avoids slowing things down unnecessarily.
Stefan
=== modified file 'lisp/ChangeLog'
--- lisp/ChangeLog 2010-09-20 21:45:09 +0000
+++ lisp/ChangeLog 2010-09-20 22:35:46 +0000
@@ -1,5 +1,9 @@
2010-09-20 Stefan Monnier <monn...@iro.umontreal.ca>
+ * textmodes/reftex-parse.el (reftex-what-macro)
+ (reftex-context-substring): Let-bind forward-sexp-function to nil
+ since we don't need/want to treat \begin...\end as a block.
+
* emacs-lisp/lisp.el (up-list): Don't do nothing silently.
* simple.el (blink-matching-open): Use syntax-class.
=== modified file 'lisp/textmodes/reftex-parse.el'
--- lisp/textmodes/reftex-parse.el 2010-09-20 13:27:59 +0000
+++ lisp/textmodes/reftex-parse.el 2010-09-20 22:35:33 +0000
@@ -385,7 +385,7 @@
(defun reftex-section-info (file)
;; Return a section entry for the current match.
- ;; Carefull: This function expects the match-data to be still in place!
+ ;; Careful: This function expects the match-data to be still in place!
(let* ((marker (set-marker (make-marker) (1- (match-beginning 3))))
(macro (reftex-match-string 3))
(prefix (save-match-data
@@ -778,13 +778,15 @@
(narrow-to-region (max (point-min) bound) (point-max))
;; move back out of the current parenthesis
(while (condition-case nil
- (progn (up-list -1) t)
+ (let ((forward-sexp-function nil))
+ (up-list -1) t)
(error nil))
(setq cnt 1 cnt-opt 0)
;; move back over any touching sexps
(while (and (reftex-move-to-previous-arg bound)
(condition-case nil
- (progn (backward-sexp) t)
+ (let ((forward-sexp-function nil))
+ (backward-sexp) t)
(error nil)))
(if (eq (following-char) ?\[) (incf cnt-opt))
(incf cnt))
@@ -965,15 +967,14 @@
(if (re-search-forward "\\\\end{" nil t)
(match-beginning 0)
(point-max))))))
- ((or (= (preceding-char) ?\{)
- (= (preceding-char) ?\[))
+ ((memq (preceding-char) '(?\{ ?\[))
;; Inside a list - get only the list.
(buffer-substring-no-properties
(point)
(min (+ (point) 150)
(point-max)
(condition-case nil
- (progn
+ (let ((forward-sexp-function nil)) ;Unneeded fanciness.
(up-list 1)
(1- (point)))
(error (point-max))))))
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