Re: when nothing happens, buffer still marked as modified

[Emanuel Berg]

Eli Zaretskii wrote:

>> From: Emanuel Berg <moasenwood@zoho.eu> Date:
>> Wed, 05 Dec 2018 03:48:59 +0100
>> 
>> Only one thing is missing what I can see, and
>> that is, when nothing happens (i e the piece
>> of text is already in the desired shape), the
>> buffer is still marked as modified (the
>> `**')!
>> 
>> What is the correct way to prevent that?
>
> Use with-silent-modifications, or just manually
> mark the buffer unmodified using
> set-buffer-modified-p, when the function is
> about to return.

But how do I determine if the buffer has
changed or not? If it has, of course it should
be marked `**'!

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