[screen-devel] [bug #43145] Text order marks cause corrupted display

[Vincent Lefèvre]

Follow-up Comment #2, bug #43145 (project screen):

In the Debian package, if I add "{ 0x061C, 0x061C }," to the "combining" table
in encoding.c, this makes the issue with this character disappear. But I don't
know whether this is the right fix.


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[screen-devel] [bug #43145] Text order marks cause corrupted display

[Axel Beckert]

Follow-up Comment #1, bug #43145 (project screen):

In https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=655589#34 the following
reproducer has been posted by Vincent Lefevre:

-
In a 80-column xterm, execute "screen bash", then

  for i in `seq 60` ; do printf 'a\u061c\u061c' ; done ; echo

then reduce the terminal window by one line. This has the effect
to duplicate the prompt and move the status line 2 lines above.
-

This is reproducible in 4.9.0-1 as currently in Debian Unstable/Testing.

I additionally noticed that, if you had multiple terminals open in a split
screen layout, the layout is gone and only one window is displayed inside the
Screen session. This can be simply reproduced by pressing "C-a S" before
executing the above command, but might need a hardstatus status line to be
present.

In my case I have

hardstatus alwayslastline "%H: %n %t | %w | %l | %c:%s"

configured.


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[screen-devel] [bug #43145] Text order marks cause corrupted display

[anonymous]

URL:
  http://savannah.gnu.org/bugs/?43145

 Summary: Text order marks cause corrupted display
 Project: GNU Screen
Submitted by: None
Submitted on: Thu 04 Sep 2014 05:10:55 PM UTC
Category: None
Severity: 3 - Normal
Priority: 5 - Normal
  Status: None
 Privacy: Public
 Assigned to: None
 Open/Closed: Open
 Discussion Lock: Any
 Release: Cur Dev Sources
   Fixed Release: None
 Planned Release: None
   Work Required: None

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Details:

When applications output U+200F RIGHT-TO-LEFT MARK or U+200E LEFT TO RIGHT
MARK, screen's display becomes garbled. These are reasonably common in e-mail
and somewhat less so in web pages.

If you have w3m, the attached HTML file will demonstrate the problem with the
latest version in HEAD (as of this writing). Debian bug #655589 contains
materials for demonstrating the problem by catting a recorded session or by
using mutt.

See also: https://bugs.debian.org/655589



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File Attachments:


---
Date: Thu 04 Sep 2014 05:10:55 PM UTC  Name: minimal-example.html  Size: 974B 
 By: None

http://savannah.gnu.org/bugs/download.php?file_id=32025

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