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bug#5667: 23.1.93; cursor movement in Korean text is slow with xfonts-ba
bug#5667: 23.1.93; cursor movement in Korean text is slow with xfonts-baekmuk
Thu, 01 Apr 2010 16:59:25 +0900
Very sorry for the late response on this matter.
In article <address@hidden>, Jae-hyeon Park <address@hidden> writes:
> I am sorry if you are seeing this report more than once as I have
> already posted about this problem to emacs-devel (which I suppose was
> not the right list for a bug report).
> I use the baekmuk bitmap font (available as the xfonts-baekmuk package
> in debian for instance) to display Korean characters in emacs. When
> there are many Korean characters in a buffer, moving the cursor among
> the Korean characters takes a long time (like a few seconds on my laptop
> which is a fairly new hardware). It is weird that this symptom occurs
> only if I use this particular font. However, the same font causes no
> trouble when I am using emacs 22.
> How to reproduce:
> 1) Start emacs with
> $ emacs -Q -xrm 'Emacs.FontBackend: x' &
> 2) In the scratch buffer, evaluate the following code
> (set-fontset-font "fontset-baekmuk" 'korean-ksc5601
> (set-frame-font "fontset-baekmuk")
> 3) In the same frame, fill a whole emacs window with Korean characters.
> For instance, open the sample Korean text file that can be downloaded
> from https://bugs.launchpad.net/bugs/471597.
> 4) Try to move the cursor downwards by pressing C-n several times
I've just confirmed this problem. Strangely that slowness
doesn't happen with the other fonts (e.g. daewoo-mincho).
I'm now investigating what is wrong.
- bug#5667: 23.1.93; cursor movement in Korean text is slow with xfonts-baekmuk,
Kenichi Handa <=