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[Bug libc/16969] New: Outdated wcwidth character database
- From: "johannes at kyriasis dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Tue, 20 May 2014 19:35:11 +0000
- Subject: [Bug libc/16969] New: Outdated wcwidth character database
- Auto-submitted: auto-generated
https://sourceware.org/bugzilla/show_bug.cgi?id=16969
Bug ID: 16969
Summary: Outdated wcwidth character database
Product: glibc
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: libc
Assignee: unassigned at sourceware dot org
Reporter: johannes at kyriasis dot com
CC: drepper.fsp at gmail dot com
The wcwidth characted database in glibc is very outdated, which leads to
programs not being able to display some characters properly. To work around
this issue programs such as vim and xterm works it by ignoring whether glibc
says that a given character is printable or not.
According to a mail[1] to a thread on the linux-utf8@nl.linux.org mailinglist
there are even characters from Unicode 4 that isn't supported yet.
One workaround is to use another wcwidth, like mgk25's[2]. Example can be seen
here[3].
[1]: http://article.gmane.org/gmane.comp.internationalization.linux/6572
[2]: http://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c
[3]: https://theos.kyriasis.com/~kyrias/wcwidth.png
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