Re: Footnotes in revealjs slides

[anna ecke <0x616e6e6165636b65-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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Thank you BP for your input. But I think, we have a small misunderstanding 
here. I was referring to footnotes 
<https://pandoc.org/MANUAL.html#footnotes>, which is a special type of 
references, I think, not speaker notes.

BP schrieb am Montag, 14. September 2020 um 14:17:49 UTC+2:

> On 2020-09-14 00:00, anna ecke wrote:
> > At the moment, the location where footnotes are rendered into can be
> > configured with the option reference-location
> > <https://pandoc.org/MANUAL.html#option--reference-location>. 
> Unfortunately,
> > it only takes effect when rendering markdown. I'd like to get my 
> footnotes
> > rendered into the same slide it was mentioned/written in.
> > 
> > My question is now, would it make sense to propose this on github as a
> > feature request, or should I just go ahead and write a filter for this? 
> I'm
> > not an Haskell expert and I haven't checked out the code base to look 
> what
> > needs to be changed to make that kind of behaviour work or what amount of
> > effort it might take.
> > 
> > Happy to hear any opinion or even receive links the code responsible for
> > this or to projects that have solved this already.
> > 
> > cheers,
> > ae
> > 
>
> Nothing prevents you from constructing your notes manually, placing note 
> references as sequential numbers in the text and a list with each note 
> text at the appropriate list number at the bottom of each slide. 
> Presumably no links between note markers and notes would be needed in a 
> slide show, which makes things easier, although you might want to wrap 
> the note numbers in the text in spans with a class and the lists with 
> notes in divs with another class for styling.
>
> Using a little CSS magic and a Lua filter you can both get note 
> references and note list numbers styled and colored appropriately, *and* 
> reveal yourself of the need to insert note numbers manually, although 
> you still need to insert divs with an appropriate class where you want a 
> note reference to appear, and need to make sure that the notes in the 
> list come in the right order relative to the note references in the text 
> of each slide.
>
> Something like this:
>
> ``````markdown
> ## Slide heading
>
> The text [mentioning]{.note} some [thing]{.note} or [other]{.note} goes 
> here.
>
> :::notes
>
> 1. Text for note.
> 2. Text for note.
> 3. Text for note.
>
> :::
> ``````
>
> and then in some appropriate place some custom CSS:
>
> ``````css
> span.note:after {
> content: counter(note-ref-counter);
> vertical-align: super;
> color: blue;
> font-size: 50%;
> }
>
> div.notes ol {
> list-style: none;
> font-size: 50%;
> }
>
> section.slide, section.title-slide {
> counter-reset: note-ref-counter note-counter;
> }
>
> div.notes ol li:before {
> content: counter(note-counter);
> vertical-align: super;
> color: blue;
> display: inline-block;
> width: 1em;
> margin-left: -1em;
> }
>
> span.note {
> counter-increment: note-ref-counter;
> }
>
> div.notes ol li {
> counter-increment: note-counter;
> }
> ``````
>
> This should give you blue superscript note markers and blue superscript 
> list markers without any trailing dot, automatically numbered 
> sequentially for each slide.
> I tried to make the count be for the whole file rather than for each 
> slide, but Chrome insists on resetting the counters to 1 when they have 
> reached 9. Perhaps someone who understands CSS counters better than I do 
> knows how to fix that.
>
> Finally you need to apply the following Lua filter when running Pandoc, 
> so that the `<div>` elements wrapping the note lists really are divs and 
> not `<aside>` elements, or else the notes will not be visible.
>
> ``````lua
> local insert = table.insert
> local begin_notes = pandoc.RawBlock('html', '<div class="notes">')
> local end_notes = pandoc.RawBlock('html', '</div>')
>
> function Div(div)
> if not div.classes:includes('notes') then return nil end
> local content = div.content
> insert(content, 1, begin_notes)
> insert(content, end_notes)
> return content
> end
> ``````
>
> The command for running pandoc should then look something like this 
> (adjusted for the version of reveal.js your version of Pandoc needs):
>
> ``````shell
> pandoc notes.md -L notes.lua -t revealjs -so notes.html --css notes.css 
> -V revealjs-url=https://unpkg.com/reve...@3.9.2/ 
> <https://unpkg.com/reveal.js@3.9.2/>
> ``````
>
> Archive with files attached!
>
>
>

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