Customize list of blocks that use "\footnotemark" in `org-latex-footnote-reference'

Customize list of blocks that use "\footnotemark" in `org-latex-footnote-reference'

[8dcc]

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Hello,

I am exporting an Org file that contains a large verse block to
LaTeX. This verse block contains footnotes, but they appear in the page
where the LaTeX verse environment ends. I looked at the exported .tex
file and I noticed that it was using "\footnotemark" and
"\footnotetext[N]{...}", instead of "\footnote{...}".

If it's not clear what the issue is, simply add a footnote to the first
lines of a very long verse block (longer than one page), and export it
to PDF.

I searched in ox-latex.el and I found the "problem". Inside
`org-latex-footnote-reference', the 2nd `cond' clause checks if the
reference is within a verse block, among others. It checks this by
calling `org-element-lineage' with a quoted list that contains the
hardcoded "blacklisted" blocks.

I think it would be a good idea to allow the user to customize this
list, since I personally don't think this makes sense with a verse block
(and probably table cell), for example.

Thanks in advance.

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Re: Customize list of blocks that use "\footnotemark" in `org-latex-footnote-reference'

[Juan Manuel Macías]

8dcc writes:

> I am exporting an Org file that contains a large verse block to
> LaTeX. This verse block contains footnotes, but they appear in the page
> where the LaTeX verse environment ends. I looked at the exported .tex
> file and I noticed that it was using "\footnotemark" and
> "\footnotetext[N]{...}", instead of "\footnote{...}".

Hello,

I seem to remember that the problem you describe goes back to how Org
understood the footnote text. When exporting to LaTeX, each line of a
footnote was understood as if it were a verse, and Org added \\ at the
end. Hence the use of \footnotemark and the
‘org-latex--delayed-footnotes-definitions’ function.

I agree that using \footnotemark can cause problems, especially on long
runs of verses. I think the solution here would be to use a function
similar to org-latex--delayed-footnotes-definitions, which would
preserve the content of the notes in a list, and format them as a
\footnote at the end, when the block has already been built in Latex.

The case of tables is different. In the longtable environment you can
use footnote without problems, except in the row-header. In other
environments it usually gives unexpected results, especially when tables
are used as float. In a float table, however, I would not use normal
footnotes via \footnotemark but the solution from the threeparttable package.

Best regards,

Juan Manuel

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Juan Manuel Macías -- Composición tipográfica, tratamiento de datos, diseño editorial y ortotipografía