### How to change a whole row of a table

Each cell of a table is set in a box, so that a change of font style (or whatever) only lasts to the end of the cell. If one has a many-celled table, or a long one which needs lots of rows emphasising, putting a font style change command in every cell will be impossibly tedious.

With the array package, you can define column modifiers which will change the font style for a whole column. However, with a bit of subtlety, one can make such modifiers affect rows rather than columns. So, we set things up by:

>     \usepackage{array}
>     \newcolumntype{$}{>{\global\let\currentrowstyle\relax}}
>     \newcolumntype{^}{>{\currentrowstyle}}
>     \newcommand{\rowstyle}[1]{\gdef\currentrowstyle{#1}%
>       #1\ignorespaces
>     }

Now, we put ‘`$`’ before the first column specifier; and we put ‘`^`’ before the modifiers of subsequent ones. We then use `\``rowstyle` at the start of each row we want to modify:

>     \begin{tabular}{|$l|^l|^l|}   \hline
>       \rowstyle{\bfseries}
>       Heading & Big and & Bold \\ \hline
>       Meek & mild & entry      \\
>       Meek & mild & entry      \\
>       \rowstyle{\itshape}
>       Strange & and & italic   \\
>       Meek & mild & entry      \\ \hline
>     \end{tabular}

The array package works with several other `tabular`-like environments from other packages (for example `longtable`), but unfortunately this trick won’t always work.

`array.sty`
  Distributed as part of macros/latex/required/tools (gzipped tar, browse)

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