@DavidCarlisle Frankly speaking, I do not understand the documentation at
latex3.github.io/babel/guides/… . I am aware of the usages as in my issue report but not of anything else. E.g., I don't understand what
no=
is supposed to do. As for
|
, it is supposed to provide a hyphenation point. E.g., the hyphenation pattern “Zu-stands-ma-schi-ne” is written as
Zu|stands|ma|schi|ne
.