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Re: [External] : Re: Text scale mode and additional fonts

From: Eli Zaretskii
Subject: Re: [External] : Re: Text scale mode and additional fonts
Date: Sat, 30 Dec 2023 20:54:20 +0200

> From: Drew Adams <>
> Date: Sat, 30 Dec 2023 18:12:08 +0000
> > > (set-fontset-font t 'arabic +bidi-arabic-font)
> > >
> > > this makes the initial situation better but now the Urdu text is not
> > > affected by the `text-scale-mode` commands.
> > 
> > That's because the :size attribute is absolute: 28.  Instead, use a
> > relative value, a float such as 1.5, then it should scale with the
> > rest of the text.
> Very useful info.  But I don't see that spelled
> out clearly in the doc.  There I find only
> statements such as these.  Do they perhaps imply
> what you stated? 
> `:size'
> VALUE must be a non-negative integer or a floating point number
> specifying the font size.  It specifies the font size in pixels (if
> VALUE is an integer), or in points (if VALUE is a float).

Sorry, I was confused.  What I wrote is true for the :height
attribute of a face, not about :size in a font-spec.  IOW, to get what
he wants, the OP should define a face with :height attribute a float.

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