Empty item introduced in list inside description for md to tex

Empty item introduced in list inside description for md to tex

[Clément Aubert]

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If a definition list ( https://pandoc.org/MANUAL.html#definition-lists )
starts with a list, then an empty item seems to be inserted when converting
to latex.

Problem 1
~
    #. Circle the keywords

produces in latex

\begin{description}
\item[Problem 1]
\begin{enumerate}
\tightlist
\item[] % This is what I'm talking about
\item
  Circle the keywords
\end{enumerate}
\end{description}

Note the \item[].

This problem does not seem to occur with html, as this markdown is rendered
as

<dl>
<dt>Problem 1</dt>
<dd><ol>
<li>Circle the keywords</li>
</ol>
</dd>
</dl>

Is this a bug or am I missing something?

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Re: Empty item introduced in list inside description for md to tex

[John MacFarlane]

Clément Aubert <aubert.clement-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> If a definition list ( https://pandoc.org/MANUAL.html#definition-lists )
> starts with a list, then an empty item seems to be inserted when converting
> to latex.
>
> Problem 1
> ~
>     #. Circle the keywords

This doesn't parse as a definition list at all.

I assume you meant

Problem 1
~   #. Circle the keywords

where I do see the \item[].

The answer can be found in the source code for the LaTeX writer:

  return $ text ("\\begin{enumerate}" <> inc)
         $$ stylecommand
         $$ resetcounter
         $$ spacing
         -- force list at beginning of definition to start on new line
         $$ (if isFirstInDefinition then "\\item[]" else mempty)
         $$ vcat items
         $$ "\\end{enumerate}"

The empty \item[] was added for a reason: because without it,
the list will start on the same line as the definition, and
subsequent items won't be aligned.

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