[NTG-context] open type feature "frac"

Ulrike Fischer news3 at nililand.de
Fri Sep 28 22:56:39 CEST 2018


Due to a question on tex.sx
(https://tex.stackexchange.com/questions/452969/luatex-fontfeaturefractions-on-turns-first-digits-into-superscripts)
I looked again (see
https://www.mail-archive.com/ntg-context@ntg.nl/msg84822.html) at
the frac feature.

The output is still not really satisfactory. With mode=node numbers
with slash looks okay, but single numbers are rather odd: only the
last digit has the correct size:

\starttext

\font\test={file:linlibertine_r.otf:mode=node;script=latn;language=DFLT;+frac}
\test
787347 125

1/7 1/2 3/4 5/6 7/8 9/10 11/12 31415/27182 1000/1000000

\font\test={file:linlibertine_r.otf:mode=base;script=latn;language=DFLT;+frac}
\test
787347 125

1/7 1/2 3/4 5/6 7/8 9/10 11/12 31415/27182 1000/1000000

\stoptext


(It could be a font bug, the output with xetex isn't good either).
 

-- 
Ulrike Fischer 
https://www.troubleshooting-tex.de/



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