GNU bug report logs - #32236
df header corrupted with LANG=zh_TW.UTF-8 on macOS

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From: Chih-Hsuan Yen <yan12125 <at> gmail.com>
To: 32236 <at> debbugs.gnu.org
Subject: bug#32236: df header corrupted with LANG=zh_TW.UTF-8 on macOS
Date: Sat, 21 Jul 2018 22:20:04 +0800

Hi coreutils developers,

I'm using coreutils on macOS High Sierra (10.13). I noticed that with
`LANG=zh_TW.UTF-8`, `df` output is corrupted.

�?�?系統 容�?? 已�?� �?��?� 已�?�% �??�?�?
/dev/disk1s1    234G  151G    81G    65% /
/dev/disk1s4    234G  2.1G    81G     3% /private/var/vm

(I'm not sure if other mail agents can display those characters
correctly or not. See my blog post [1] for the exact output.)

Seems it's similar to bug#25630 [2], which is not resolved. I guess
the reason of my issue is that iscntrl() is broken on macOS High
Sierra, so in hide_problematic_chars(), some bytes in the Chinese
header is replaced with a question mark. I managed to patch coreutils
[3] to make `df` work. Could you have a look? Thanks!

Best,

Chih-Hsuan Yen

[1] https://blog.chyen.cc/posts/2018/06/23/mac-df-chinese.html
[2] http://lists.gnu.org/archive/html/bug-coreutils/2017-02/msg00008.html
[3] https://github.com/yan12125/macports-ports/blob/fix-coreutils-df-chinese/sysutils/coreutils/files/patch-df.diff

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