incorrect "cols in tabular missing"

[pagenum]

Environment

• TeXstudio: 4.8.4
• Qt: 6.7.2
• OS: Windows10
• TeX distribution: texlive2024

Expected behavior

No highlight for "\\"

Actual behavior

Highlighted "\\", mouse move onto "\\", a message :"cols in tabular missing" showed

How to reproduce

\begin{NiceTabular}{|m[l]{185pt}|m[c]{110pt}|c|c|m[c]{42pt}|m[c]{42pt}|}
            \Hline
            1 & 1 & 1 & 1 & 1 & 1 \\
            \Hline
        \end{NiceTabular}

[sunderme]

the issue is the m[c] definition. If you can provide the package and a clean definition on how this is supposed to work, I may add it to txs.

[pagenum]

the issue is the m[c] definition. If you can provide the package and a clean definition on how this is supposed to work, I may add it to txs.

https://ctan.math.washington.edu/tex-archive/macros/latex/contrib/nicematrix/nicematrix.pdf

[sunderme]

would you please point out where that is described ?

[muzimuzhi]

In the table preambles of nicematrix table environments, specifiers | (vertical table line), p{...}, b{...}, m{...}, V{...}, and X{....} all accept an optional argument.

texdoc nicematrix (v6.29b, 2024-11-12)

• sec. 4.2 The mono-column blocks

  For a block in a column of type p{...}, b{...}, m{...}, V{...} or X, the alignment c will be used by default. However, those types of columns may have an optional argument for the horizontal alignment (eg: p[l]{...}) and, in that case, that type of alignment is passed to the block.

• sec. 5.3 The tools of nicematrix for the rules

  As well as the command \Hline, the specifier “|” supports an optional argument between square brackets for the characteristics of the rule.

texdoc nicematrix-code

• sec. 11 Construction of the preamble of the array

  The specifier p (and also the specifiers m, b, V and X) have an optional argument between square brackets for a list of key-value pairs. Here are the corresponding keys.

[sunderme]

a bit subtle as documentation goes, but okay.