Index commands should close open paragraphs

[Gavin Smith]

Links to discussion archive:
https://lists.gnu.org/archive/html/help-texinfo/2022-11/msg00060.html
https://lists.gnu.org/archive/html/help-texinfo/2022-11/msg00061.html

On Sun, Nov 27, 2022 at 02:39:25PM +0100, Patrice Dumas wrote:
> > What is more awkward is when there is no blank line before the index 
> > command:
> > 
> >     @table @asis
> >     @item aaa
> >     text
> >     @cindex XXX
> >     @item bbb
> >     text
> >     @end table
> > 
> > producing
> > 
> >     <dl class="table">
> >     <dt>aaa</dt>
> >     <dd><p>text
> >     <a class="index-entry-id" id="index-XXX"></a>
> >     </p></dd>
> >     <dt>bbb</dt>
> >     <dd><p>text
> >     </p></dd>
> >     </dl>
> > 
> > There are several such usages in the Texinfo manual...

> For such cases, it is not clear to me what the output should be
> actually, the index entry could belong to the previous or next @item.
> Since the result is ok, I think that we can leave it as it is.

I think index commands should close any open paragraphs, as there is no other
way of getting the right output other than having a blank line.

If it is really desired for an index command to refer to the middle of
a paragraph, we could introduce a brace command like @anchor for this purpose.