Michael Schmitt wrote:
> the following problem is really hard to identify and so I would like to
> draw your attention to it another time.
>
> - This one is really annoying: LaTeX accepts
> {\sffamily \begin{tabular}{|p{3.3cm}|}\hline foo \par foo \\
> \hline \end{tabular}}
> but cannot handle
> \textsf{\begin{tabular}{|p{3.3cm}|}\hline foo \par foo \\
> \hline \end{tabular}}
[...]
> Herbert, do you know whether both notations are 100% equivalent
> (except for the bug)??? I really think that this problem should
> be fixed; it was already the second time that I spent endless time
> on finding out what's going on) (my former comments on this issue
> resulted in bug #172)
they are not 100% equivalent! They have only the same
result, if they are used in the right way.
\textsf{...} puts it's argument in a group. In a table every
row, too. When one tablerow ends, TeX does not really
know that it's still inside the first group of textsf.
So you'll get the error
---------------
Runaway argument?
{\begin {tabular}{|p{3.3cm}|} \hline foo
! Paragraph ended before \text@command was complete.
---------------
\sffamily doesn't define a group and is much more easier in
it's definition than \textsf{}
\DeclareRobustCommand\sffamily
{\not@math@alphabet\sffamily\mathsf
\fontfamily\sfdefault\selectfont}
therefore you need the {...} to put the \sffamily command
inside, otherwide it's a global definition for all following
text.
Hope this helps
Herbert
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