isearch attempts to split fixed-size window on slow terminal

isearch attempts to split fixed-size window on slow terminal

[Ulrich Neumerkel]

--text follows this line--
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In GNU Emacs 21.3.3 (i686-pc-linux-gnu, X toolkit)
 of 2003-11-17 on gupu.complang.tuwien.ac.at
configured using `configure  --without-toolkit-scroll-bars --prefix /usr'
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: en_US
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

M-: (setq baud-rate 1000)       ; to pretend a slow connection
C-h C-n                         ; to obtain a big file
M-: (setq window-size-fixed t)  ;
C-s Emacs                       ; to search a frequent word :-)
C-s (several times)

When the next found word is off the visible window, the error "Attempt
to split fixed-size window" occurs.  However, no window should be
split in this particular situation.



Recent input:
<help-echo> <help-echo> M-: ( s e t q SPC b a u d - 
r a t e SPC 1 0 0 0 ) <return> C-h C-n M-: ( s e t 
q SPC w i n d o w - s i z e - f i x e d SPC t ) <return> 
C-s E m a c s C-s C-s C-s C-s C-s <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <menu-bar> 
<help-menu> <report-emacs-bug>

Recent messages:
Loading /usr/share/emacs/site-lisp/site-start.d/po-mode-init.el (source)...done
Loading /usr/share/emacs/site-lisp/site-start.d/psgml-init.el (source)...done
For information about the GNU Project and its goals, type C-h C-p.
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Loading outline...
Loading easy-mmode...done
Loading outline...done
t
isearch-update: Attempt to split fixed-size window
Loading emacsbug...done

Re: isearch attempts to split fixed-size window on slow terminal

[Kevin Rodgers]

Ulrich Neumerkel wrote:
 > Please describe exactly what actions triggered the bug
 > and the precise symptoms of the bug:
 >
 > M-: (setq baud-rate 1000)       ; to pretend a slow connection
 > C-h C-n                         ; to obtain a big file
 > M-: (setq window-size-fixed t)  ;
 > C-s Emacs                       ; to search a frequent word :-)
 > C-s (several times)
 >
 > When the next found word is off the visible window, the error "Attempt
 > to split fixed-size window" occurs.  However, no window should be
 > split in this particular situation.

Since baud-rate is less than search-slow-speed, Emacs has no other
choice -- it doesn't know that you're only pretending that your terminal
is slow:

,----[ C-h v window-size-fixed RET ]
| window-size-fixed's value is nil
|
| Documentation:
| Non-nil in a buffer means windows displaying the buffer are fixed-size.
| Emacs won't change the size of any window displaying that buffer,
| unless you explicitly change the size, or Emacs has no other choice.
                                             ^^^^^^^^^^^^^^^^^^^^^^^^^
| This variable automatically becomes buffer-local when set.
`----

-- 
Kevin Rodgers