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Re: Converting an Integer into Human Readable String


From: Eli Zaretskii
Subject: Re: Converting an Integer into Human Readable String
Date: Thu, 07 Apr 2011 23:10:31 +0300

> From: "Drew Adams" <address@hidden>
> Date: Thu, 7 Apr 2011 11:51:52 -0700
> 
> > > > Beware: this has side effects.  It doesn't just return a string.
> > > What side effects?  Where are they documented?
> > It affects the display.  In the ELisp manual.
> 
> Can you be more specific?  Do you mean node `Emulating Mode Line'?

Yes.

> AFAICT, the only thing it says about display happening (side effects) is in 
> the
> final Note and the example following it.  That is, the only case it mentions
> (AFAICT) where display actually happens is if you pass one of "`mode-line',
> `mode-line-inactive', or `header-line' as FACE".

Or t.

> Did you have something else in mind, or was that it?  Is this text exhaustive
> wrt side effects, or is it missing something?

That text says all I know about the issue.



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