[XeTeX] Background colour for some (but not all) rows of an \halign (UNIV: XeTeX, not XeLaTeX)

[John Was]

Hello Philip

I don't know if the following would be classed as simple, but it puts a
grey background to the second line of the table, and if required frequently
the code could be wrapped up in a control sequence:

\input pstricks

\tabskip 0pt

\halign to \hsize{%

#\hfil \tabskip 0pt plus 1em&

#\hfil&

#\hfil&

#\hfil&

#\hfil\tabskip 0pt\cr

123& 456& 789& 101112&131415\cr

\newrgbcolor{jwgrey}{0.9 0.9 0.9}

\pspolygon[fillstyle=solid,fillcolor=jwgrey,linestyle=none]%

(0pt,-0.35\baselineskip)%

(\hsize,-0.35\baselineskip)%

(\hsize,0.75\baselineskip)%

(0pt,0.75\baselineskip)\cr

\noalign{\kern -\baselineskip}

123& 456& 789& 101112&131415\cr

123& 456& 789& 101112&131415\cr

123& 456& 789& 101112&131415\cr

123& 456& 789& 101112&131415\cr

123& 456& 789& 101112&131415\cr}\par

\vfill \eject \bye

Best wishes

John


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On Wed, 3 Mar 2021 at 11:39, Philip Taylor <P.Taylor at hellenic-institute.uk>
wrote:

> May I ask if there is a simple way to apply a background colour to some
> (but not all) rows of an \halign.  UNIV = plain XeTeX, not XeLaTeX.
> --
> Philip Taylor
>
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