Re: Fenced Div to ConTeXt Environment (was: Markdown Fenced Div to LaTeX Environment)

[Bastien DUMONT <bastien.dumont-VwIFZPTo/vqsTnJN9+BGXg@public.gmane.org>]

The problem is that el.content is a List, and the Div function must return a Block or a list of Blocks. The error means that Pandoc doesn't recognize the List provided by el.content as a Block, which is normal.

I see two solutions:

  – The simplest one: replace el.content by el (so that it returns two RawBlocks and a Div, which is a kind of Block);
  – If you really want the content of the Div to be extracted from the Div and the Div to be removed from the output:

function context(s)
  return pandoc.RawBlock('context', s)
end

function Div(el)
  if el.classes[1] == 'intro' then
    local intro = {}
    table.insert(intro, context('\\startparagraph{intro}'))
    for i = 1, #el.content do
      table.insert(intro, el.content[i])
    end
    table.insert(intro, context('\\stopparagraph'))
    return intro
  end
end

I guess that the first solution should satisfy your needs, but the second one is worth mentionning for other applications.

Le Thursday 17 June 2021 à 09:55:40AM, 'juh' via pandoc-discuss a écrit :
> 
> Am 17.06.21 um 08:54 schrieb BPJ:
> > --filter/-F is for JSON filters. Lua filters need --lua-filter/-L
> 
> Thanks a lot! Now the error message is much more informative.
> 
> This is my filter:
> 
> function context(s)
>   return pandoc.RawBlock('context', s)
> end
> 
> function Div(el)
>   if el.classes[1] == 'intro' then
>     return { context('\\startparagraph{intro}'), el.content,
> context('\\stopparagraph') }
>   end
> end
> 
> 
> This is the error message
> 
> Error running filter filter.lua:
> Could not read list: Could not get Block value: untagged value
> 
> Any hints?
> juh
> 
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