Am 26.02.2026 um 20:23 schrieb Tomáš Hála:
Hi all,
the MWE below produces two pages with different kernings b-o and o-w.
(I have observed the same with \ss\it but not with \tf\bi or \tf\it.)
\tf and \ss are doing two different things, \tf is the switch to the
switch to the upright alternative in a font style while \ss switches to
the sans serif style.
Font alternatives: \tf, \it, \sl, \bf, \bi and \bs
Font styles: \rm, \ss and \tt
Viewed by three viewers. As evince and pdffonts report, only one font
(LMSans10-BoldOblique) was loaded.
(All lmsans10-boldoblique.otf files on my computer since 2022 are the same.)
I cannot figure out why these two snippets give different result.
Could someone please explain? Or is it just a display/eye issue?
Best,
Tomáš
%%%%%%%%%%%%%%%%%%%%%%%%
% Tested on:
% TL2025
% ConTeXt ver: 2025.11.24 17:55
% ConTeXt ver: 2024.06.21 23:45 LMTX (at c-o-w)
% Viewed by: xpdf, evince, mupdf
%%%%%%%%%%%%%%%%%%%%%%%%
\definefontfamily
[mainface]
You're setting a font without specifying the style or font name.
Because no style has been set the default style "rm" is used and because
no font has been set nothing can be found, which results in the fallback
selection of the "modern" typeface.
What you get here is the same as the following typeface setting:
\definetypeface [mainface] [rm] [serif] [modern] [default]
\starttext
\startTEXpage[offset=3dd]
\switchtobodyfont[modern,1cc]
\ss\bi bowling
\stopTEXpage
\page
\startTEXpage[offset=3dd]
\switchtobodyfont[mainface,1cc]
\ss\bi bowling
You're switching to the sans serif style which hasn't been defined in
your custom "mainface" typeface where only a serif style has been set.
Wolfgang
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : [email protected] /
https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
archive : https://github.com/contextgarden/context
wiki : https://wiki.contextgarden.net
___________________________________________________________________________________
