Misplaced \omit in custom environment wrapping tabular

Question

My goal was to easily frame a column of a tabular with a rectangle. I found a good answer here. So I tried to adapt it to my use case and that worked:

\documentclass[]{article}
\usepackage{slashbox}

\usepackage{tikz}
\usepackage{xparse}

\usetikzlibrary{calc}

\newcommand{\tikzmark}[1]{\tikz[overlay,remember picture] \node (#1) {};}
\newcommand{\DrawBox}[3][]{%
    \tikz[overlay,remember picture]{
        \draw[black,#1]
        ($(#2)+(-0.0em,0.5ex)$) rectangle
        ($(#3)+(0.75em,0.0ex)$);}
}

\begin{document}

\begin{tabular}{|l|ccccccc|}
    \multicolumn{3}{c}{}\tikzmark{c1}\\
    \hline
    \backslashbox{$v$}{$k$} 
    & 1        & 2    & 3    & 4    & 5        & 6    & 7      \\
    \hline
    1 & 7(1)    & 4 & - & - & -     & 5    & -  \\    
    2 & 7(4)    & -    & 2    & - & 6(4)    & - & 1  \\
    3 & -        & -    & -    & 3    & 6(3)    & -    & -     \\
    \hline
    \multicolumn{3}{c}{}&\tikzmark{c2}\\
\end{tabular}
\DrawBox[ultra thick, black]{c1}{c2}

\end{document}

The result looks like I expected it to look:

But when I tried creating a custom environment (as I have to repeatedly use this trick) I get a weird error.

Misplaced \omit. \end{tabularHighlighted}

When I place an ampersand or a newline in front of the multicolumn the error disappers but leaving the cell empty is no solution as the frame of the tabular will then be drawn around that cell.

\documentclass[]{article}
\usepackage{slashbox}

\usepackage{tikz}
\usepackage{xparse}

\usetikzlibrary{calc}

\newcommand{\tikzmark}[1]{\tikz[overlay,remember picture] \node (#1) {};}
\newcommand{\DrawBox}[3][]{%
    \tikz[overlay,remember picture]{
        \draw[black,#1]
        ($(#2)+(-0.0em,0.5ex)$) rectangle
        ($(#3)+(0.75em,0.0ex)$);}
}
\NewDocumentEnvironment{tabularHighlighted}{mm}
{
    \begin{tabular}{#1}
    \multicolumn{#2}{c}{}\tikzmark{c1}\\
}
{
    \multicolumn{#2}{c}{}&\tikzmark{c2}\\
    \end{tabular}
    \DrawBox[ultra thick, black]{c1}{c2}
}

\begin{document}


\begin{tabularHighlighted}{|l|ccccccc|}{3}
    \hline
    \backslashbox{$v$}{$k$} 
   & 1        & 2    & 3    & 4    & 5        & 6    & 7      \\
    \hline
    1 & 7(1)    & 4 & - & - & -     & 5    & -  \\    
    2 & 7(4)    & -    & 2    & - & 6(4)    & - & 1  \\
    3 & -        & -    & -    & 3    & 6(3)    & -    & -     \\
    \hline
\end{tabularHighlighted}

\end{document}

Update

Here's the log with \listfiles for anyone wondering

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\l__coffin_x_dim=\dimen160
\l__coffin_y_dim=\dimen161
\l__coffin_x_prime_dim=\dimen162
\l__coffin_y_prime_dim=\dimen163
\c_empty_coffin=\box43
\l__coffin_aligned_coffin=\box44
\l__coffin_aligned_internal_coffin=\box45
\l_tmpa_coffin=\box46
\l_tmpb_coffin=\box47
\l__coffin_display_coffin=\box48
\l__coffin_display_coord_coffin=\box49
\l__coffin_display_pole_coffin=\box50
\l__coffin_display_offset_dim=\dimen164
\l__coffin_display_x_dim=\dimen165
\l__coffin_display_y_dim=\dimen166
L3 Module: l3color 2014/08/23 v5354 L3 Experimental color support
L3 Module: l3candidates 2015/03/01 v5544 L3 Experimental additions to l3kernel
\l__box_top_dim=\dimen167
\l__box_bottom_dim=\dimen168
\l__box_left_dim=\dimen169
\l__box_right_dim=\dimen170
\l__box_top_new_dim=\dimen171
\l__box_bottom_new_dim=\dimen172
\l__box_left_new_dim=\dimen173
\l__box_right_new_dim=\dimen174
\l__box_internal_box=\box51
\l__coffin_bounding_shift_dim=\dimen175
\l__coffin_left_corner_dim=\dimen176
\l__coffin_right_corner_dim=\dimen177
\l__coffin_bottom_corner_dim=\dimen178
\l__coffin_top_corner_dim=\dimen179
\l__coffin_scaled_total_height_dim=\dimen180
\l__coffin_scaled_width_dim=\dimen181
)
("C:\Program Files (x86)\MiKTeX 2.9\tex\latex\l3kernel\l3unicode-data.def"
File: l3unicode-data.def 2015/03/01 v5544 L3 Unicode data
)
("C:\Program Files (x86)\MiKTeX 2.9\tex\latex\l3kernel\l3pdfmode.def"
File: l3pdfmode.def 2015/03/01 v5544 L3 Experimental driver: PDF mode
\l__driver_color_stack_int=\count130
))
Package: xparse 2014/11/25 v5471 L3 Experimental document command parser
\l__xparse_current_arg_int=\count131
\l__xparse_m_args_int=\count132
\l__xparse_mandatory_args_int=\count133
\l__xparse_processor_int=\count134
\l__xparse_v_nesting_int=\count135
)
("C:\Program Files (x86)\MiKTeX 2.9\tex\generic\pgf\frontendlayer\tikz\librarie
s\tikzlibrarycalc.code.tex"
File: tikzlibrarycalc.code.tex 2013/07/15 v3.0.0 (rcs-revision 1.9)
)
.................................................
. LaTeX info: "xparse/define-environment"
. 
. Defining environment 'tabularHighlighted' with sig. 'mm' on line 24.
.................................................
 (template_Article2.aux)
LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 26.
LaTeX Font Info:    ... okay on input line 26.
LaTeX Font Info:    Checking defaults for T1/cmr/m/n on input line 26.
LaTeX Font Info:    ... okay on input line 26.
LaTeX Font Info:    Checking defaults for OT1/cmr/m/n on input line 26.
LaTeX Font Info:    ... okay on input line 26.
LaTeX Font Info:    Checking defaults for OMS/cmsy/m/n on input line 26.
LaTeX Font Info:    ... okay on input line 26.
LaTeX Font Info:    Checking defaults for OMX/cmex/m/n on input line 26.
LaTeX Font Info:    ... okay on input line 26.
LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 26.
LaTeX Font Info:    ... okay on input line 26.

ABD: EveryShipout initializing macros
("C:\Program Files (x86)\MiKTeX 2.9\tex\context\base\supp-pdf.mkii"
[Loading MPS to PDF converter (version 2006.09.02).]
\scratchcounter=\count136
\scratchdimen=\dimen182
\scratchbox=\box52
\nofMPsegments=\count137
\nofMParguments=\count138
\everyMPshowfont=\toks27
\MPscratchCnt=\count139
\MPscratchDim=\dimen183
\MPnumerator=\count140
\makeMPintoPDFobject=\count141
\everyMPtoPDFconversion=\toks28
)
LaTeX Font Info:    External font `cmex10' loaded for size
(Font)              <7> on input line 29.
LaTeX Font Info:    External font `cmex10' loaded for size
(Font)              <5> on input line 29.

! Misplaced \omit.
\multispan ->\omit 
                   \@multispan 
l.38     \end{tabularHighlighted}

I expect to see \omit only after tab marks or the \cr of
an alignment. Proceed, and I'll ignore this case.

I get no error from the posted example with texlive 2017 + slashbox.sty copied from ctan — David Carlisle, Jun 05 '17 at 16:48
@DavidCarlisle I'm using Miktex but does that really make a difference? — dohamann, Jun 06 '17 at 11:10
should not make a difference. add \listfiles to your preamble and show the file list from the end of the log (you would need to scroll past the error) The error means you have something before \multicolumn when \multicolumn has to be the first thing in its cell, so the other possibility is you have some invisible control character there. — David Carlisle, Jun 06 '17 at 11:53
@DavidCarlisle Added the log, but I can't figure out what's wrong from that. — dohamann, Jun 09 '17 at 17:04
I'm voting to close this question as off-topic because the issue was due to outdated software and was solved with an update. — egreg, Jun 09 '17 at 17:18

score 0 · Answer 1 · answered Jun 09 '17 at 17:06

0

Weirdly I suddenly got an error message that miktex was missing some dll so I reinstalled miktex and now the error does not reappear.

answered Jun 09 '17 at 17:06

dohamann

21

you had very old packages eg expl3-code from 2015 but one on ctan was from this year, the updaye presumably gave you consistent set of packages – David Carlisle Jun 09 '17 at 17:13

Misplaced \omit in custom environment wrapping tabular

Update

1 Answers1