[Dev-luatex] tex.currentgrouplevel

David Kastrup dak at gnu.org
Mon Sep 15 20:10:35 CEST 2008


David Kastrup <dak at gnu.org> writes:

[...]

>> Why? At \endgroup, tex.count.stackIndex would be reset to the value
>> it had at the beginning of the group (since it is a tex \count
>> register, not a Lua variable). Then, after \begingroup, setting a
>> variable would notice that tex.count.groupLevel (which would also
>> have been reset to its previous value at \endgroup) is lower than
>> tex.currentgrouplevel, and a new stack element would be created,
>> replacing the previous element for this grouping level.
>
> Ok, the group housekeeping of the TeX counters should do the trick
> here.

Anyway, I am not convinced that this poor man's equivalence table for
Lua is a sane approach to the problem, regardless whether
tex.currentgrouplevel might be nice to have or not.

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum


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