On 21/10/2022 10:34, Ihor Radchenko wrote:
Juan Manuel Macías writes:
I see the tabularray issue simply as an example that \empty is not as
reliable as we thought. There might be other LaTeX packages throwing
errors on \\\empty.
My impression is that tabularray has an ambitious goal to replace all
current table packages. I have no idea if other packages will adopt
similar approach with regexp-based parsing instead of usual expanding of
TeX commands.
I do not like necessity to add \NewTableCommand\empty{} to documents
somehow (only if tabularray is loaded). I do not have an idea better
than \\[0pt] and an optimizing filter to remove [0pt] in almost all cases.