previous-line, display table, overlay

[Patrick Gundlach]

Hi again,
In GNU Emacs 21.1.1 (i586-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2001-10-27 on levana
configured using `configure  --prefix=/opt/emacs/21.1/ 
--with-x-toolkit=athena'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: C
  locale-coding-system: nil
  default-enable-multibyte-characters: t


-----------------start buffer
(defvar pg-dispt (make-display-table))
(set-char-table-parent pg-dispt standard-display-table)
(aset pg-dispt 12 (apply 'vector 
                         (mapcar '(lambda (x)
                                    (+ (* 524288 (face-id 'secondary-selection) 
) x))
                                 (vconcat "<newpage>"))))
(setq standard-display-table pg-dispt)

--------------------endbuffer
I use the above code to mark a ^L as   a highlighted "<newpage>". When I do 
this, I cannot use the cursor-up key (bound to previous-line) to move from 
below the <newpage> to above the <newpage> marking. Without the 
display-table stuff (when ^L is shown as ^L) everything is fine.

one
<newpage>
two

so I have the cursor on the line with two (after the o, not(!) in the first 
column), press cursor-up (previous-line) and the cusor will not go past 
(up) the <newpage>. Only if I have the cursor in the first column (pointing 
at the t) I can move the cursor up beyond the <newpage>
Emacs even crashes, if I put a <newpage> on the last line and move from a 
column > 1 on the line before the <newpage>  down. (next-line).

(another question: is this also the address to send feature requests for 
the great gnu emacs?)

(one other thing: thanks to the super-fast response to the bug report 
concerning the xml parser/comments not ignored!!)

-- 
Viele Grüße, 

    Patrick Gundlach