[NTG-context] [fontloader] does base mode support combining substitutions?

Philipp Gesang Philipp.Gesang at alumni.uni-heidelberg.de
Sat Apr 5 21:58:33 CEST 2014

···<date: 2014-04-05, Saturday>···<from: Hans Hagen>···

> On 4/5/2014 4:37 PM, Philipp Gesang wrote:
> > Hi Hans,
> >
> > when combining e.g. certain number substitutions like onum and
> > pnum or tnum and lnum, node mode seems to work fine. However,
> > those do have value in math mode as well which node mode does not
> > currently support. For comparison, here is a test file:
> >
> >      https://bitbucket.org/phg/lua-la-tex-tests/raw/93745dba31e23febb02191c039dea2de743ce77a/cnt-features-8-combined-num.tex
> >
> > Is there a way to define a font with the combination of, say tnum
> > and lnum that will work in math mode? If not, are there plans to
> > implement it in the future?
> basemode will always be limited because there we create static glyph 
> sets; so. for complex substitutions node mode is the method to use
> what do you mean with math mode in this case; in math a digit is 
> different from a digit in text mode; i think that if one uses *num 
> digits we're talking text mode

I’m just relaying a question of a user who wishes to use those
combined lnum+tnum digits in math mode.

> of course in context we can support whatever we want because we're not 
> bound to rules, but the question is: does it make sense;

Ultimately I can’t judge that, the problem description does seem
valid though: http://tex.stackexchange.com/q/165238/14066

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