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bug#15402: 24.3; Emacs and Mac OS Dock bad launch behavior

From: Constantine Vetoshev
Subject: bug#15402: 24.3; Emacs and Mac OS Dock bad launch behavior
Date: Tue, 17 Sep 2013 01:25:18 -0700

When Emacs is launched from its icon in the Mac OS Dock, all modes
derived from term (such as M-x ansi-term) exhibit strange behavior:
printing a long line which contains a Unicode character causes line
truncation and generally puts the terminal in a bad state. Resetting the
terminal fixes the problem.

The problem does NOT occur when Emacs is launched from the command
line, i.e., the terminal modes all work correctly if Emacs is invoked by
running the following at a (non-Emacs) shell:

The problem does not seem to be related to any Emacs initialization code
in .emacs or init.el. It occurs consistently when all initialization
code is commented out.

Attached is a sample file which causes the problem; just save it, launch a
shell in ansi-term, and cat the file.

In addition, when launched from the Dock, ansi-term requires something
like the following to display Unicode characters correctly:

(defadvice ansi-term (after advice-ansi-term activate)
  (set-buffer-process-coding-system 'utf-8-unix 'utf-8-unix))

This is NOT required when launching Emacs from the command line!

Attachment: test.txt
Description: Text document

In GNU Emacs 24.3.1 (x86_64-apple-darwin12.2.0, NS apple-appkit-1187.34)
 of 2013-03-10 on athena.local
Windowing system distributor `Apple', version 10.3.1187
Configured using:
 `configure '--with-ns''

Important settings:
  value of $LC_COLLATE: C
  value of $LC_CTYPE: en_US.UTF-8
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

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