Juan Manuel Macías writes:
> So, in the current situation, we can ask ourselves: is
> \empty everywhere safe? Everything points to yes. Can we be 100% sure?
> ...?
I think I've found a case where \empty 'everywhere' can produce unexpected
results. I don't know if I'm missing something, because I've never used
this package, but taking a couple of random examples from the tabularray
documentation, you can see it, compiling the following snippet (by the
way, putting \\[0pt] instead of \\\empty the result is correct). Here in
both cases the problem is in the last \empty:
\documentclass{article}
\usepackage{tabularray}
\begin{document}
\section{Normal}
\begin{tblr}{lccr}
\hline
Alpha & Beta & Gamma & Delta \\
\hline
Epsilon & Zeta & Eta & Theta \\
\hline
Iota & Kappa & Lambda & Mu\\
\hline
\end{tblr}
\section{With `empty'}
\begin{tblr}{lccr}
\hline
Alpha & Beta & Gamma & Delta \\\empty
\hline
Epsilon & Zeta & Eta & Theta \\\empty
\hline
Iota & Kappa & Lambda & Mu\\\empty
\hline
\end{tblr}
\section{Normal}
\begin{tblr}[m]{hlines}
Alpha & Beta & Gamma \\
Epsilon & Zeta & Eta\\
Iota & Kappa & Lambda\\
\end{tblr}
\section{With `empty'}
\begin{tblr}[m]{hlines}
Alpha & Beta & Gamma \\\empty
Epsilon & Zeta & Eta\\\empty
Iota & Kappa & Lambda \\\empty
\end{tblr}
