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From: Christian Herenz <herenz@physik.hu-berlin.de>
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Subject: Re: Detect if Emacs is running in -nw mode
Date: Mon, 31 Mar 2008 10:34:18 +0200
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Tim X schrieb:

> (unless condition
>   (do-thing-1 arg1)
>   (do-thing-2)
>   (do-thing-3 arg1 arg2))
> 

OK!

> (if window-system
>     (do-true-thing)
>   (do-false-thing))

See! That was what confused me, I thought unless works like if, but obviously 
there is a difference.

Thank you very much :-)

Greets,
Christian