Re: Custom styles in docx to markdown conversion.

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

As for your second question, what you want is to get the content of the span, without the containing span element itself. So:

```
function Span(el)
  if el.attributes['custom-style']:match('XYZ Body Text Char') then
    return el.content
  end
end
```

The solution to "get rid of any OrderedList that immediately contains a Major/Minor Head, but leave "normal" OrderedLists intact" is similar: since the content of an OrderedLists is a list of lists of Blocks, you want the return the content of the only Block in the first list of Blocks. This may work:

```
function OrderedList(el)
  local possibleHeader = el.content[1][1]
  if possibleHeader.t == 'Div'
    and possibleHeader.attributes['custom-style']:match('XYZ Minor Head')
  then
    return pandoc.Header(2, pandoc.utils.blocks_to_inlines(possibleHeader.content))
  end
end
```


Le Thursday 16 December 2021 à 01:28:18PM, Joost Kremers a écrit :
> 
> On Fri, Dec 10 2021, John MacFarlane wrote:
> >> Does that help?
> >
> > Yeah, that's enough information for me.
> >
> > What you need to do is to write a Lua filter like this:
> >
> > function Div(el)
> >   if el.attributes['custom-style']:match('XYZ Minor Head') then
> >     return pandoc.Header(2, pandoc.utils.blocks_to_inlines(el.content))
> >   end
> > end
> >
> > Hope it's clear what this does.
> 
> For some reason, it doesn't work... I tried to extend your filter to the
> following:
> 
> ```
> function Div(el)
>   if el.attributes['custom-style']:match('XYZ Major Head') then
>     return pandoc.Header(1, pandoc.utils.blocks_to_inlines(el.content))
>   elseif el.attributes['custom-style']:match('XYZ Minor Head') then
>     return pandoc.Header(2, pandoc.utils.blocks_to_inlines(el.content))
>   elseif el.attributes['custom-style']:match('XYZ Body Text') then
>     return pandoc.Para(pandoc.utils.blocks_to_inlines(el.content))
>   end
> end
> ```
> 
> Using this filter, the custom style 'XYZ Body Text' is converted, but the Major
> and Minor Heads are not. When I convert to native (without the filter), I don't
> see a difference between Body Text on the one hand and Major or Minor Heads on
> the other: both are Div elements with "custom-style" set as indicated. Only the
> body text is changed, the headers are not.
> 
> Could the problem be that the header Div's tend to appear inside an OrderedList?
> For some strange reason, the Major and Minor Heads don't use numbering. Instead,
> each header is an item in a numbered list... Is there a way to clean up such
> cases? I.e., get rid of any OrderedList that immediately contains a Major/Minor
> Head, but leave "normal" OrderedLists intact?
> 
> Another question: body text in the converted document is often enclosed in a
> Span with a specific custom-style. I'd like to get rid of the span, since the
> style is of no interest to me, but I'm not sure what I should have the function
> return. For example, the following:
> 
> ```
> function Span(el)
>   if el.attributes['custom-style']:match('XYZ Body Text Char') then
>     return pandoc.Para(pandoc.utils.blocks_to_inlines(el.content))
>   end
> end
> ```
> 
> raises an error. I also tried converting to Plain (honestly, I don't know what
> the correct type would be), and I tried just passing `el.content` to
> `pandoc.Para`, but I keep getting errors. (Specifically: "Block
> expected, got userdata", and also "table expected, got userdata" with Plain
> instead of Para.)
> 
> I apologise for what is probably a barrage of newbie questions, but having no
> previous knowledge of Lua and only a vague understanding of Pandoc's internal
> data types, I have a hard time figuring things out from the documentation.
> 
> I appreciate any pointers.
> 
> TIA
> 
> -- 
> Joost Kremers
> Life has its moments
> 
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