Hi all, in *TeX empty groups aren't harmless and I think AUCTeX shouldn't append braces to a macro when its last argument is optional. Consider for example the following code
--8<---------------cut here---------------start------------->8--- \documentclass{article} \usepackage{booktabs} \begin{document} \begin{tabular}{ll} \toprule{} foo & bar \\ \midrule foo & bar \\ \bottomrule \end{tabular} \end{document} --8<---------------cut here---------------end--------------->8--- The first cell of the first row has a wrong spacing. The attached patch should fix this problem. Objections or better solutions? Bye, Mosè
last-optional-argument.patch
Description: Binary data
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