Re: How to wrap code blocks within new tables?

[mf <massifrg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

Il 01/07/23 10:09, Sylvain Hubert ha scritto:
> ok just reverse-engineered it 
> folloing https://github.com/jgm/pandoc/issues/8932#issuecomment-1614842929 :
> 
> function CodeBlock(elem)
> return pandoc.Table(
>        {},
>        {"AlignDefault"},
>        {},
>        {{}},
>        {{{elem}}}
>      )
> end
> 

This is the old version of tables, that now is called `SimpleTable`, see 
https://pandoc.org/lua-filters.html#type-simpletable

You can use the same syntax with current pandoc this way:

```lua
t = pandoc.SimpleTable( {}, { "AlignDefault" }, {}, { {} }, { { { elem } 
} } )
```

and then convert it to a Table with:

```lua
t2 = pandoc.utils.from_simple_table(t)
```

By the way, I noticed that there's no `pandoc.TableBody` constructor.

The only way I found is through a lua table like this:

```lua
body = {
   attr = pandoc.Attr(),
   head = {},
   row_head_columns = 0,
   body = { pandoc.Row( { pandoc.Cell( { elem } ) } ) }
}
```

So a minimal table is made like this:

```lua
t = pandoc.Table(
   {},                        -- empty caption
   { { 'AlignDefault', 0 } }, -- one column, default alignment and width
   pandoc.TableHead(),        -- empty table head
   { body },                  -- a list of one body
   pandoc.TableFoot()         -- empty table foot
)
```


> On Saturday, 1 July 2023 at 15:58:34 UTC+8 Sylvain Hubert wrote:
> 
>     Hi all,
> 
>     I'm trying to create bounding boxes for code blocks by wrapping them
>     inside tables.
>     According to the manual, I should probably use some filter like:
> 
>          function CodeBlock(elem)
>              return pandoc.Table(--[[... elem ...]])
>          end
> 
>     but pandoc.Table takes a giant syntax tree with levels of all sorts
>     of nodes.
>     Neither the manual nor the error message gives a useful guide of
>     actually creating a table.
> 
>     Could anyone provide a minimal example of creating a pandoc.Table in
>     a lua filter?
> 
>     Thanks
> 
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