How to wrap code blocks within new tables?

How to wrap code blocks within new tables?

[Sylvain Hubert]

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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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Re: How to wrap code blocks within new tables?

[Sylvain Hubert]

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ok just reverse-engineered it 
folloing https://github.com/jgm/pandoc/issues/8932#issuecomment-1614842929 :

function CodeBlock(elem)
    return pandoc.Table(
      {},
      {"AlignDefault"},
      {},
      {{}},
      {{{elem}}}
    )
end

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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Re: How to wrap code blocks within new tables?

[mf]

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
> 
> -- 
> You received this message because you are subscribed to the Google 
> Groups "pandoc-discuss" group.
> To unsubscribe from this group and stop receiving emails from it, send 
> an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org 
> <mailto:pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>.
> To view this discussion on the web visit 
> https://groups.google.com/d/msgid/pandoc-discuss/4f0c1e08-60a7-4c97-9a7e-c3367ae32483n%40googlegroups.com <https://groups.google.com/d/msgid/pandoc-discuss/4f0c1e08-60a7-4c97-9a7e-c3367ae32483n%40googlegroups.com?utm_medium=email&utm_source=footer>.

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Re: How to wrap code blocks within new tables?

[Sylvain Hubert]

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It works, thanks for the help!

On Saturday, 1 July 2023 at 16:48:51 UTC+8 mf wrote:

> 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
> > 
> > -- 
> > You received this message because you are subscribed to the Google 
> > Groups "pandoc-discuss" group.
> > To unsubscribe from this group and stop receiving emails from it, send 
> > an email to pandoc-discus...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org 
> > <mailto:pandoc-discus...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>.
> > To view this discussion on the web visit 
> > 
> https://groups.google.com/d/msgid/pandoc-discuss/4f0c1e08-60a7-4c97-9a7e-c3367ae32483n%40googlegroups.com 
> <
> https://groups.google.com/d/msgid/pandoc-discuss/4f0c1e08-60a7-4c97-9a7e-c3367ae32483n%40googlegroups.com?utm_medium=email&utm_source=footer
> >.
>

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