** Changed in: emacs23 (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/471597
Title:
Cursor movement in Korean text is slow with xfonts-baekmuk
Status in “emacs23” package in Ubuntu:
Fix Released
Bug description:
Binary package hint: emacs23
Source package: emacs23
Ubuntu release: 9.10 amd64
Package version: 23.1+1-4ubuntu3
I use the bitmap font xfonts-baekmuk 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).
How to reproduce:
1) Start emacs with
$ emacs23 -Q -xrm 'Emacs.FontBackend: x' &
2) In the scratch buffer, evaluate the following code
(create-fontset-from-fontset-spec
"-misc-fixed-medium-r-normal--15-140-75-75-c-90-fontset-baekmuk,
ascii:-misc-fixed-medium-r-normal--15-140-75-75-c-90-iso8859-1")
(set-fontset-font "fontset-baekmuk" 'korean-ksc5601
"-baekmuk-gulim-medium-r-normal--18-180-75-75-m-180-ksc5601.1987-0")
(set-frame-font "fontset-baekmuk")
3) Open the attached file in the same frame
4) Try to move the cursor downwards by pressing C-n several times
I don't know whether this is a problem of emacs23 or of xfonts-
baekmuk.
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