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The following code does compile

\documentclass{article} \usepackage{longtable} \begin{document} \begin{longtable}{c} \noalign{\bfseries $r$ test} \multicolumn{1}{c}{Line 1} \end{longtable} \end{document}

but this one does not

\documentclass{article} \usepackage{longtable} \begin{document} \begin{longtable}{c} \noalign{\bfseries\boldmath $r$ test} \multicolumn{1}{c}{Line 1} \end{longtable} \end{document}

I got the error message misplaced \omit. I have to double the braces:

\noalign{{\bfseries\boldmath $r$ test}}

Any ideas why?

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  • 1
    note that even in the non-error case the markup is wrong latex is not set up to typeset a paragraph of text in \noalign you should always use a nested parbox or minipage or at least \@parboxrestore (\par is defined to do nothing, baseline spacing is zero....) Commented Nov 19, 2016 at 8:15
  • Can you show a context where this would be useful? Commented Nov 19, 2016 at 10:13

1 Answer 1

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5

\boldmath uses \mathversion that puts stuff after the current group via \aftergroup. Therefore, the macro \glb@settings is leaking out of \noalign, disturbing the table.

A group helps:

\documentclass{article} \usepackage{longtable} \begin{document} \begin{longtable}{c} \noalign{{\bfseries\boldmath $r$ test}} \multicolumn{1}{c}{Line 1} \end{longtable} \end{document}

Result

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