Re: MWE for building a table using Lua

[K4zuki <k.yamamoto.08136891-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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hint 1 - my note about Table structure (might be inaccurate w/ 2.18):
    https://gist.github.com/K4zuki/04e1e1af2fcf06db1a6ea640aa8feadd 
hint 2 - my implementation in a filter 
(https://github.com/pandocker/pandocker-lua-filters/blob/master/lua/csv2table.lua):
1. prepare a minimum table markdown text as a local variable
2. let pandoc convert the text, then extract Table object
```lua
local table_template = [==[
| table |
|-------|
| cell |

Table: caption
]==]

local my_table = pandoc.read(table_template, "markdown").blocks[1]
```
3. clone the object and replace the contents

2022年5月26日木曜日 18:06:06 UTC+9 Bastien Dumont:

> The constructors don't take tables as their argument, but discrete values. 
> I have not found the definition of the constructors in the official 
> documentation, but you can look into this filter to see how they work: 
> https://github.com/pandoc/lua-filters/blob/master/list-table/list-table.lua
>
> Le Thursday 26 May 2022 à 01:53:39AM, msprev a écrit :
> > This creates the following structure -- all ok, except the table body, 
> which is
> > empty ('[]'), and I cannot get it to appear. Any suggestions on what I'm 
> doing
> > wrong would be gratefully received.
> > 
> > ```
> > Table
> > ( "" , [] , [] )
> > (Caption Nothing [])
> > [ ( AlignLeft , ColWidthDefault )
> > , ( AlignDefault , ColWidthDefault )
> > ]
> > (TableHead ( "" , [] , [] ) [])
> > []
> > (TableFoot ( "" , [] , [] ) [])
> > ```
> > On Wednesday, May 25, 2022 at 12:48:06 PM UTC+1 msprev wrote:
> > 
> > I've been struggling to get my head around handling tables with Lua in
> > pandoc 2.18. I'm trying to write a minimal working example to create a
> > table as I can't seem to find one online. The code below does create a
> > table, but with any empty table body and I can't figure out how to get 
> the
> > body to appear. Can anyone help tell me what has gone wrong here?
> > 
> > BTW, I tried to call the pandoc.TableBody() constructor, but that throws 
> an
> > error as it doesn't seem to be defined ("attempt to call a nil value 
> (field
> > 'TableBody')")
> > 
> > ```
> > local caption = {long = {}}
> > local colspecs = {{pandoc.AlignLeft, pandoc.ColWidthDefault},
> > {pandoc.AlignDefault, pandoc.ColWidthDefault}}
> > local head = pandoc.TableHead()
> > local cell1contents = { pandoc.Plain({pandoc.Str("cell1")}) }
> > local cell2contents = { pandoc.Plain({pandoc.Str("cell2")}) }
> > local cell1 = { alignment=pandoc.AlignDefault, contents=cell1contents,
> > col_span=1, row_span=1 }
> > local cell2 = { alignment=pandoc.AlignDefault, contents=cell2contents,
> > col_span=1, row_span=1 }
> > local row1 = { cells={pandoc.Cell(cell1), pandoc.Cell(cell2)} }
> > local rows = { pandoc.Row(row1) }
> > local bodies = { body=rows, head={}, row_head_columns=0 }
> > local foot = pandoc.TableFoot()
> > local mytable = pandoc.Table(caption, colspecs, head, bodies, foot)
> > table.insert(doc.blocks, mytable)
> > ```
> > 
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