Bug#288936: marked as done (vim: outputs parts of utf-8 multibyte characters at end of line)
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Date: Thu, 6 Jan 2005 14:21:00 +0100
From: "Bernhard R. Link" <brlink@debian.org>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: vim: outputs parts of utf-8 multibyte characters at end of line
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Package: vim
Version: 1:6.3-046+1
Severity: minor
If the last character before a line-wrap is a multi-byte uft8 character,
vim prints the first byte of the character again. This leads to an
invalid sequence confusing uxterm. (Other terminals seem to autocorrect
this).
To reproduce (utf8-locale needed):
Generate a file with an multi-byte sequence at the end of the physical
line, for example by having more than enough German umlauts A-diaresises:
for n in $(seq 1000) ; do echo -n -e '\303\244' ; done > bla
Then start vim with this:
script output
vim bla
exit
Then od -c output contains:
0000660 244 303 244 303 033 [ 2 ; 1 H 303 244 303 244 303 244
Note the spurious 303 before the escape sequence \033[2;1H.
I think this bug is caused by the following code in
vim-6.3/vim63/src/screen.c +4171:
#ifdef FEAT_MBYTE
/* When there is a multi-byte character, just output a
* space to keep it simple. */
if (has_mbyte && mb_off2cells(LineOffset[screen_row - 1]
+ (unsigned)Columns - 1) != 1 )
out_char(' ');
else
#endif
out_char(ScreenLines[LineOffset[screen_row - 1]
+ (Columns - 1)]);
Changing this to:
if (has_mbyte /* && mb_off2cells(LineOffset[screen_row - 1]
+ (unsigned)Columns - 1) != 1 */)
removes the bug, so I guess that is indeed the cause.
-- System Information:
Debian Release: 3.1
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.7-1-686
Locale: LANG=C, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Versions of packages vim depends on:
ii dpkg 1.10.25 Package maintenance system for Deb
ii libc6 2.3.2.ds1-20 GNU C Library: Shared libraries an
ii libgpmg1 1.19.6-19 General Purpose Mouse - shared lib
ii libncurses5 5.4-4 Shared libraries for terminal hand
ii vim-common 1:6.3-046+1 Vi IMproved - Common files
-- no debconf information
---------------------------------------
Received: (at 288936-done) by bugs.debian.org; 16 Mar 2005 20:34:07 +0000
>From matthijs@cacholong.nl Wed Mar 16 12:34:07 2005
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Message-ID: <42389838.6000500@cacholong.nl>
Date: Wed, 16 Mar 2005 21:34:00 +0100
From: Matthijs Mohlmann <matthijs@cacholong.nl>
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To: 288936@bugs.debian.org
Cc: 288936-done@bugs.debian.org
Subject: Re: vim: outputs parts of utf-8 multibyte characters at end of line
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The current vim in sid isn't affected by this bug, I couldn't reproduce
this bug.
Matthijs
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