On 2025-03-03 08:43, Thomas Meyer wrote:
You mean that:
% Set the textarea width to 2.6 alphabets.
\setbox\scratchbox\hbox{\dorecurse{26}{\character\recurselevel}}
\newdimen\Width \Width=\dimexpr(2.6\wd\scratchbox)
That's something I don't understand! What is a 2.6 alphabet? What
means "scratchbox", "2.6\wd" ... ?
This is straight TeX (not the higher-level nicety of ConTeXt). What it
does is create a throw-away box (a scratchbox) and sets in it
horizontally one lower case alphabet of the current body font. It
creates that alphabet by setting
\character{1}\character{2}...\character{26} using a loop. It then
measures the width of the box holding the 26 characters (\wd\scratchbox)
and multiplies that by 2.6, depositing the result in \Width.
A more ConTeXt-y way to do this might be:
\def\Alphabet{abcdefghijklmnopqrstuvwxyz}
\setupbodyfont[libertinus,12pt]
\setwidthof\Alphabet\to\AlphabetWidth
and then use width=2.6\AlphabetWidth in your layout
--
Rik
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