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bug#1993: 23.0.60; Emacs.app has only transparent window background

From: Adrian Robert
Subject: bug#1993: 23.0.60; Emacs.app has only transparent window background
Date: Sat, 4 Apr 2009 12:11:00 +0545

On Mar 29, 2009, at 5:11 AM, David Reitter wrote:

Adrian, should we change this to match the Carbon Emacs default?
Your ns-compatibility-mode (forgot exact name) could change that, of course, but without it, we don't have too many Mac like keys bound. Traditional Emacs users tend to want a Meta key, while most users of non-English keyboard layouts will need Option very regularly to do tasks often done in Emacs {like C/Java/... programming}.


I will just give my thoughts on this, but since this port is a community project it is not necessarily my decision what to do.

The reason to prefer command = command is that emacs can then use similar accelerator keybindings to other os x apps. The reason to prefer command = meta is that emacs can use similar non-ascii latin character entry to other os x apps. Which is preferred for a given user depends on two questions:

1) is the user in continental Europe?
2) is the user editing code or text?

Why (2)? Now that I've been living on the continent myself for a while, I've noticed that programmers here often just use a US keyboard layout even if they have a physically non-US keyboard. It's just too much of a hassle to get commonly-needed special characters otherwise.

So my feeling is that the command=meta option is preferred by text- writing Continentals, while command = command is likely preferred by everyone else. I am not sure which group makes up a larger subset of OS X emacs users.

I do know that I received a few complaints over the years from folks disliking the Emacs.app command=command default. My answer was always to rehash the above and note that it's easy to change it -- just flip a combo box in the prefs panel. Now that it's not so easy (I guess figuring out the existence of ns/mac-command-modifier variable and writing suitable elisp to .emacs is necessary), the default setting becomes more important.

Could be done, but I think we should stick to one default for all layouts.

Then the system's one. No artificial changes.

I agree with both of these. So perhaps the best default would be command=command (super), alt=none, and the user can set a meta key (additional to esc+) if he/she desires.


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