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


From: Jan Djärv
Subject: bug#15402: 24.3; Emacs and Mac OS Dock bad launch behavior
Date: Tue, 17 Sep 2013 20:04:44 +0200

Hello.

17 sep 2013 kl. 10:25 skrev Constantine Vetoshev <address@hidden>:

> 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.

By unicode character, I assume you mean non-ASCII?  All ASCII characters are 
Unicode characters.

> 
> 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:
> "/Applications/Emacs.app/Contents/MacOS/Emacs"
> 
> 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!

There is a problem here.  You don't need to cat your test file to see the 
problem, just input a non-ASCII character from the keyboard, for example å.
The dock-started Emacs will not show å, it will show \345.

        Jan D.






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