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From: daniel@bigwalter.net (Daniel Jensen)
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Subject: Re: Highlight new lines
Date: Thu, 14 Jun 2007 12:50:41 +0200
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Cecil Westerhof <dummy@dummy.nl> writes:

>>>> There is a global Highlight Changes mode. You can add
>>>> 
>>>>     (global-highlight-changes 1)
>>>> 
>>>> to your .emacs to enable it.
>>>
>>> This gives an aerror.
>> 
>> It should work out of the box. What is the error?
>
> Symbol's function definition is void: global-highlight-changes t

Well, there you have it, the non-breaking space. If you place point over
it and type C-x =, you'll see a description of the character. Compare
that with what you get for an ordinary space.

With the non-breaking space, Emacs reads `global-highlight-changes t' as
one token, and that's not a function. If you upgrade to Emacs 22, you'll
get non-breaking spaces highlighted, so that you can better avoid this
error in the future.