acmart-option: sigconf not working correctly

[checkdgt]

When I apply the option:
acmart-option: sigconf

Then the page switched to two column and shows an error with longtable.

I've applied the 'workaround' from here (quarto-dev/quarto-cli#2786) which seems to have rectified it, but mentioned this as an issue so it can hopefully be fixed for future users.

quarto version: 1.3.353

[wjones127]

I've attempted the fix described in that discussion, but when rendering the template ended up with tables sitting in the center of the columns:

@checkdgt Are you seeing the tables being rendered within the columns?

Workaround implementation

Create a file table_workaround.tex:

% Workaround for longtable in two-column mode
% https://github.com/quarto-journals/acm/issues/33
% https://github.com/quarto-dev/quarto-cli/discussions/2786
\usepackage{float}
\makeatletter
\let\oldlt\longtable
\let\endoldlt\endlongtable
\def\longtable{\@ifnextchar[\longtable@i \longtable@ii}
\def\longtable@i[#1]{\begin{figure}[H]
\onecolumn
\begin{minipage}{0.5\textwidth}
\oldlt[#1]
}
\def\longtable@ii{\begin{figure}[H]
\onecolumn
\begin{minipage}{0.5\textwidth}
\oldlt
}
\def\endlongtable{\endoldlt
\end{minipage}
\twocolumn
\end{figure}}
\makeatother

In yaml frontmatter, add:

include-in-header:
  - table_workaround.tex

[wjones127]

I was not able to fix that existing workaround, but I found another workaround that does work for me: jgm/pandoc#1023 (comment)

[checkdgt]

@wjones127 thanks for pointing this out, I just double checked and I also have the funky tables in the layout. Thanks for the new workaround, I'll apply this locally and see how it pans out.

[SichangHe]

Using a Pandoc filter that produces plain tabular and it seems to work for me: jgm/pandoc#1023 (comment)

To use this, copy the Lua file and put this in the preemble:

filters:
    - table_workaround_filter.lua