厳密に言うとスレ違いかもしれないけど。
XEmacs on Cygwin で rd-mode-plus.el を使うと、hide-subtree とかで閉じたエントリを
正しく開くことができなくなる。
で、diff とった差分。空白がつぶれるのは適当に直して。
Emacs Lisper ではないので無茶苦茶かもしれないけどその辺も適当に。

--- rd-mode-plus.el.orig 2003-11-05 22:13:03.391768000 +0900
+++ rd-mode-plus.el 2003-11-05 22:35:52.290147200 +0900
@@ -87,7 +87,9 @@
"Equivalent to baseline of current line except for some extensions.
Headlines have negative levels. Item lines have non-integer levels."
(save-excursion
- (beginning-of-line)
+ (if (re-search-backward "[\n\^M]" nil t)
+ (forward-char +1)
+ (beginning-of-line))
(let ((epsilon 0.5))
(cond ((looking-at "=begin *$") -7)
((looking-at "=end *$") -7)
@@ -104,7 +106,11 @@
(t (error "Can't happen."))))))

(defun rd-column (pos)
- (length (buffer-substring-no-properties (line-beginning-position)
+ (length (buffer-substring-no-properties
+ (save-excursion
+ (if (re-search-backward "[\n\^M]" nil t)
+ (progn (forward-char +1) (point))
+ (line-beginning-position)))
pos)))

(defun rd-item-indent ()