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I want to use tabularray tables in lyx by redefining tabular environment. For this aim, I need to use \tabularnewline instead of \\ by \providecommand{\tabularnewline}{\\}. But, if I do this, the table is corrupted as in the figure. What is the reason for this, and how to tackle it?

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\documentclass{article} \usepackage{lmodern} \usepackage{xcolor} \usepackage{tabularray} \providecommand{\tabularnewline}{\\} \begin{document} \Large{WRONG}: \begin{tblr}{|c|c|c|} \hline \SetRow{lime!20} Item 1 & Item 2 & Item 3 \tabularnewline \hline text & text & text\tabularnewline \hline \end{tblr} \vspace{1cm} \Large{RIGHT}: \begin{tblr}{|c|c|c|} \hline \SetRow{lime!20} Item 1 & Item 2 & Item 3 \\ \hline text & text & text\\ \hline \end{tblr} \end{document}
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  • You might be interested in a module i wrote to use tabularray in lyx. You can get it here: github.com/Udi-Fogiel/LyX-Tabularray Commented Aug 3, 2022 at 21:50

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tabularray must see a real \\ because it uses that to split the array in rows. So you must tell it to expand \tabularnewline first with [expand=\tabularnewline].

\documentclass{article} \usepackage{lmodern} \usepackage{xcolor} \usepackage{tabularray} \providecommand{\tabularnewline}{\\} \begin{document} \Large{RIGHT}: \begin{tblr}[expand=\tabularnewline]{|c|c|c|} \hline \SetRow{lime!20} Item 1 & Item 2 & Item 3 \tabularnewline \hline text & text & text\tabularnewline \hline \end{tblr} \end{document}
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