# TeX - ! Extra alignment tab has been changed to \cr

Carlos linguafalsa at gmail.com
Fri Jul 12 14:19:36 CEST 2019

>
> However, that would be a huge change to current LaTeX and likely to
> break a massive amount of stuff.
>

How did I know that the stuff breaking would follow this discussion. It's
not going to break a massive amouut anymore than the opposite counterpart
https://github.com/latex3/latex2e/issues/150 does to multiple columns. If
that goes through, so does this

\settabs 2 \columns
\+ t1 && t2 & t3 & t4 & t5 & t3 && \cr

\settabs 2 \columns
\+ t1 & t2 & t3 & t4 & t5 \cr

\begin{tabular}{ccccc}     %%% options should be doiing the job regardless
-currently superfluous
t1 && t2 & t3 & t4 & t5 \\
t1 & t2 & t3 & t4 & t5 \\
\end{tabular}

On Tue, Jul 9, 2019 at 11:31 AM Joseph Wright <
joseph.wright at morningstar2.co.uk> wrote:

> On 09/07/2019 16:20, Carlos wrote:
> >>
> >> Or do you believe that LaTeX should behave differently than what plain
> >> TeX should do with the analogous construct?
> >>
> >
> > Jim and Paul:
> >
> > I've always thought that LaTeX should behave differently ... pretty much
> in
> > the same lines as Plain does, and if not, Remove the error message from
> > LaTeX, and then we'll talk about it .. get rid of that crap because is
> not
> > doing anything but further obscuring the problem
> >
>
> If I were re-implementing tables for a 'new LaTeX' today, I'd avoid
> using \halign and read stuff in for more controlled construction. As
> others have said, having more alignment points that columns is surely an
> error at the user level, so one might imagine slightly different
> phrasing, but the core message would be the same.
>
> However, that would be a huge change to current LaTeX and likely to
> break a massive amount of stuff. That leaves us with \halign and how it
> treats tabular content. As such, I'm not sure what the outcome here
> could be.
>
> (Also if this is a specific feature request for the LaTeX kernel, it
> would be best logged at https://github.com/latex3/latex2e/issues so the
> entire LaTeX team see it.)
>
> Joseph
>
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