Bug#254069: marked as done (ttf-bangla-fonts: Remove characters
U+200C (ZWNJ) and U+200D (ZWJ))
Debian Bug Tracking System
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Date: Sat, 12 Jun 2004 12:17:48 -0700 (PDT)
From: Stefan Baums <baums@u.washington.edu>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: ttf-bangla-fonts: Remove characters U+200C (ZWNJ) and U+200D (ZWJ)
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Package: ttf-bangla-fonts
Version: 0.5-1
Severity: serious
The fonts in this package contain nonsensical glyphs in the code
positions U+200C and U+200D. In fact, however, these code
positions are control characters (ZERO WIDTH NON-JOINER and ZERO
WIDTH JOINER) and should therefore not be in the font at all (and
_definitely_ not contain any glyphs). The presence of these
characters in the fonts breaks their essential use as control
characters, and makes the fonts useless for the rendering of
Bengali as per the Unicode specification. What is worse, on a
system using fontconfig, the mere presence of these fonts is
likely to break Bengali rendering even if other, correct Bengali
OpenType fonts are available.
Take the word "utkala", for example, represented by the character
sequence
<0989, 09A4, 09CD, 200D, 0995, 09B2>
where U+200D (ZERO WIDTH NON-JOINER) explicitly requests rendering
with khanda ta instead of with hasanta or a conjunct. Due to the
presence in these fonts of U+200C and U+200D as regular,
nonsensical glyphs, Gedit for instance renders the above character
sequence in a completely broken way, as illustrated at
http://staff.washington.edu/baums/tmp/utkala.png
Solution: completely remove the characters U+200C and U+200D from
these Bengali fonts, and please ask upstream to do the same.
Because this bug causes a breakage that extends beyond the package
in question, I have given it severity serious.
Thanks,
Stefan
-- System Information:
Debian Release: testing/unstable
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.4.26
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8
Versions of packages ttf-bangla-fonts depends on:
ii defoma 0.11.8 Debian Font Manager -- automatic f
-- no debconf information
--
Stefan Baums
Asian Languages and Literature
University of Washington
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Date: Sat, 25 Sep 2004 16:05:01 -0700
From: Steve Langasek <vorlon@debian.org>
To: 254069-done@bugs.debian.org
Subject: Re: ttf-bangla-fonts: Remove characters U+200C (ZWNJ) and U+200D (ZWJ)
Message-ID: <20040925230456.GC29937@mauritius.dodds.net>
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I'm told that the bug in pango was already fixed, and that there's no
reason to keep this bug open anyway.
--=20
Steve Langasek
postmodern programmer
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