> the following is created in the output auxiliary table of contents file:
>
> @numchapentry{f@"ur}{1}{}{1}
>
> Without it, it would be
>
> @numchapentry{für}{1}{}{1}
>
> Do you understand now how changing the active definitions can change
> what's written to the output files?
Thank you for your demonstration.
I understand it.
Exactly, it can be effective.
I've come up with another idea.
If I understand correctly, in current texinfo.tex,
0xC3 and 0xBC are set to active and are replaced with \"u.
This behavior change as following:
If native Unicode support is enabled,
U+00FC is set to active and is replaced with \"u.
I do not know whether it is possible, now.
If it is possible, texinfo.tex Unicode support
and native Unicode support can exist together.
