There is a section "Digits into Numbers"
in tex4ht-xhtmml-xtpipes.tex file.
If I read it correctly, the code deals with
merging "mn" nodes. Apparently Eitan's approach
was to postprocess html file with xtpipes (and not to fix c-code).
On Feb 2, 2018, at 1:19 AM, Karl Berry wrote:
> Follow-up Comment #1, bug #378 (project tex4ht):
> I'm sorry, I don't understand yet. Do you know where the "<mn>" string
> actually gets emitted? Because "mn" only occurs as a word in a few places
> anywhere in the *.tex files (and not in tex4ht-c.tex), none of which looks
> especially relevant to the creation of the <mn>1</mn> to me.
> Anyway, in tex4ht-mathltx.tex, there are some \Configure commands for some,
> but not all, of the numerals, starting around line 2245. Only 0..6 are
> configured there, and only 4..5 with the "mathltx-" option (whatever that is).
> What happens with 7..9? Does any of this make sense to you?
> I wonder if Eitan provided an option for determining the behavior of the
> numerals in math mode. So wish he were still here ...
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