Require support with Pandoc's processing of RTF tables

[SnakeRelatedBusiness]

I am using Pandoc to process RTF files and running into an issue where Pandoc interprets a single table as multiple nested tables with broken cell layouts

Even a basic table with minimal formatting:

\paperw11908\paperh16833\margl1080\margr1080\margt720\margb720\headery720\footery720\nogrowautofit\deftab720\formshade\nofeaturethrottle1\dntblnsbdb\fet4\aendnotes\aftnnrlc\pgbrdrhead\pgbrdrfoot 
\sectd\pgwsxn11902\pghsxn16835\guttersxn0\marglsxn1080\margrsxn1080\margtsxn720\margbsxn720\headery720\footery720\sbkpage\pgncont\pgndec 
\plain\plain\f0\fs20 
\trowd\trgaph60\trpaddl60\trpaddfl3\trpaddr60\trpaddfr3\trleft0 
\clvertalt\cellx3245 
\clvertalt\cellx6490 
\clvertalt\cellx9735 
\pard\intbl\ssparaaux0\s0\ql\plain\f0\fs20\plain\f2\fs22\lang2057\hich\f2\dbch\f2\loch\f2\fs22 A\plain\f1\fs22\lang3081\hich\f1\dbch\f1\loch\f1\fs22\cell 
\pard\intbl\ssparaaux0\s0\ql\plain\f0\fs20\plain\f2\fs22\lang2057\hich\f2\dbch\f2\loch\f2\fs22 B\plain\f1\fs22\lang3081\hich\f1\dbch\f1\loch\f1\fs22\cell 
\pard\intbl\ssparaaux0\s0\ql\plain\f0\fs20\plain\f2\fs22\lang2057\hich\f2\dbch\f2\loch\f2\fs22 C\plain\f1\fs22\lang3081\hich\f1\dbch\f1\loch\f1\fs22\cell 
\intbl\row 
\pard\intbl\ssparaaux0\s0\ql\plain\f0\fs20\plain\f2\fs22\lang2057\hich\f2\dbch\f2\loch\f2\fs22 1\plain\f1\fs22\lang3081\hich\f1\dbch\f1\loch\f1\fs22\cell 
\pard\intbl\ssparaaux0\s0\ql\plain\f0\fs20\plain\f2\fs22\lang2057\hich\f2\dbch\f2\loch\f2\fs22 2\plain\f1\fs22\lang3081\hich\f1\dbch\f1\loch\f1\fs22\cell 
\pard\intbl\ssparaaux0\s0\ql\plain\f0\fs20\plain\f2\fs22\lang2057\hich\f2\dbch\f2\loch\f2\fs22 3\plain\f1\fs22\lang3081\hich\f1\dbch\f1\loch\f1\fs22\cell 
\intbl\row 

Produces this nested table structure:

  Meta { unMeta = fromList [] }
  [ Table
      ( "" , [] , [] )
      (Caption Nothing [])
      [ ( AlignDefault , ColWidthDefault ) ]
      (TableHead ( "" , [] , [] ) [])
      [ TableBody
          ( "" , [] , [] )
          (RowHeadColumns 0)
          []
          [ Row
              ( "" , [] , [] )
              [ Cell
                  ( "" , [] , [] )
                  AlignDefault
                  (RowSpan 1)
                  (ColSpan 1)
                  [ Table
                      ( "" , [] , [] )
                      (Caption Nothing [])
                      [ ( AlignDefault , ColWidthDefault ) ]
                      (TableHead ( "" , [] , [] ) [])
                      [ TableBody
                          ( "" , [] , [] )
                          (RowHeadColumns 0)
                          []
                          [ Row
                              ( "" , [] , [] )
                              [ Cell
                                  ( "" , [] , [] )
                                  AlignDefault
                                  (RowSpan 1)
                                  (ColSpan 1)
                                  [ Table
                                      ( "" , [] , [] )
                                      (Caption Nothing [])
                                      [ ( AlignDefault
                                        , ColWidthDefault
                                        )
                                      ]
                                      (TableHead ( "" , [] , [] ) [])
                                      [ TableBody
                                          ( "" , [] , [] )
                                          (RowHeadColumns 0)
                                          []
                                          [ Row
                                              ( "" , [] , [] )
                                              [ Cell
                                                  ( "" , [] , [] )
                                                  AlignDefault
                                                  (RowSpan 1)
                                                  (ColSpan 1)
                                                  [ Table
                                                      ( "" , [] , [] )
                                                      (Caption
                                                         Nothing [])
                                                      [ ( AlignDefault
                                                        , ColWidthDefault
                                                        )
                                                      ]
                                                      (TableHead
                                                         ( ""
                                                         , []
                                                         , []
                                                         )
                                                         [])
                                                      [ TableBody
                                                          ( ""
                                                          , []
                                                          , []
                                                          )
                                                          (RowHeadColumns
                                                             0)
                                                          []
                                                          [ Row
                                                              ( ""
                                                              , []
                                                              , []
                                                              )
                                                              [ Cell
                                                                  ( ""
                                                                  , []
                                                                  , []
                                                                  )
                                                                  AlignDefault
                                                                  (RowSpan
                                                                     1)
                                                                  (ColSpan
                                                                     1)
                                                                  [ Table
                                                                      ( ""
                                                                      , []
                                                                      , []
                                                                      )
                                                                      (Caption
                                                                         Nothing
                                                                         [])
                                                                      [ ( AlignDefault
                                                                        , ColWidthDefault
                                                                        )
                                                                      ]
                                                                      (TableHead
                                                                         ( ""
                                                                         , []
                                                                         , []
                                                                         )
                                                                         [])
                                                                      [ TableBody
                                                                          ( ""
                                                                          , []
                                                                          , []
                                                                          )
                                                                          (RowHeadColumns
                                                                             0)
                                                                          []
                                                                          [ Row
                                                                              ( ""
                                                                              , []
                                                                              , []
                                                                              )
                                                                              [ Cell
                                                                                  ( ""
                                                                                  , []
                                                                                  , []
                                                                                  )
                                                                                  AlignDefault
                                                                                  (RowSpan
                                                                                     1)
                                                                                  (ColSpan
                                                                                     1)
                                                                                  [ Table
                                                                                      ( ""
                                                                                      , []
                                                                                      , []
                                                                                      )
                                                                                      (Caption
                                                                                         Nothing
                                                                                         [])
                                                                                      [ ( AlignDefault
                                                                                        , ColWidthDefault
                                                                                        )
                                                                                      ]
                                                                                      (TableHead
                                                                                         ( ""
                                                                                         , []
                                                                                         , []
                                                                                         )
                                                                                         [])
                                                                                      [ TableBody
                                                                                          ( ""
                                                                                          , []
                                                                                          , []
                                                                                          )
                                                                                          (RowHeadColumns
                                                                                             0)
                                                                                          []
                                                                                          [ Row
                                                                                              ( ""
                                                                                              , []
                                                                                              , []
                                                                                              )
                                                                                              [ Cell
                                                                                                  ( ""
                                                                                                  , []
                                                                                                  , []
                                                                                                  )
                                                                                                  AlignDefault
                                                                                                  (RowSpan
                                                                                                     1)
                                                                                                  (ColSpan
                                                                                                     1)
                                                                                                  [ Table
                                                                                                      ( ""
                                                                                                      , []
                                                                                                      , []
                                                                                                      )
                                                                                                      (Caption
                                                                                                         Nothing
                                                                                                         [])
                                                                                                      []
                                                                                                      (TableHead
                                                                                                         ( ""
                                                                                                         , []
                                                                                                         , []
                                                                                                         )
                                                                                                         [])
                                                                                                      [ TableBody
                                                                                                          ( ""
                                                                                                          , []
                                                                                                          , []
                                                                                                          )
                                                                                                          (RowHeadColumns
                                                                                                             0)
                                                                                                          []
                                                                                                          [ Row
                                                                                                              ( ""
                                                                                                              , []
                                                                                                              , []
                                                                                                              )
                                                                                                              []
                                                                                                          ]
                                                                                                      ]
                                                                                                      (TableFoot
                                                                                                         ( ""
                                                                                                         , []
                                                                                                         , []
                                                                                                         )
                                                                                                         [])
                                                                                                  , Para
                                                                                                      [ Str
                                                                                                          "A"
                                                                                                      ]
                                                                                                  ]
                                                                                              ]
                                                                                          ]
                                                                                      ]
                                                                                      (TableFoot
                                                                                         ( ""
                                                                                         , []
                                                                                         , []
                                                                                         )
                                                                                         [])
                                                                                  , Para
                                                                                      [ Str
                                                                                          "B"
                                                                                      ]
                                                                                  ]
                                                                              ]
                                                                          ]
                                                                      ]
                                                                      (TableFoot
                                                                         ( ""
                                                                         , []
                                                                         , []
                                                                         )
                                                                         [])
                                                                  , Para
                                                                      [ Str
                                                                          "C"
                                                                      ]
                                                                  ]
                                                              ]
                                                          ]
                                                      ]
                                                      (TableFoot
                                                         ( ""
                                                         , []
                                                         , []
                                                         )
                                                         [])
                                                  , Para [ Str "1" ]
                                                  ]
                                              ]
                                          ]
                                      ]
                                      (TableFoot ( "" , [] , [] ) [])
                                  , Para [ Str "2" ]
                                  ]
                              ]
                          ]
                      ]
                      (TableFoot ( "" , [] , [] ) [])
                  , Para [ Str "3" ]
                  ]
              ]
          ]
      ]
      (TableFoot ( "" , [] , [] ) [])
  ]

Is there an issue with the format of RTF document I am using or is RTF table processing fundamentally non-functional?

[jgm]

This stripped-down version works:

\trowd
\cellx3245
\cellx6490
\cellx9735
\pard\intbl A\cell
\pard\intbl B\cell
\pard\intbl C\cell
\row
\trowd
\pard\intbl 1\cell
\pard\intbl 2\cell
\pard\intbl 3\cell
\row

We need to figure out which of the additional elements in yours is causing this problem.

[SnakeRelatedBusiness]

I'm unable to reproduce the correct output even with your test table. I'm using pandoc version 3.9.0.2

Converting a file with your text to native produces nested table elements for every cell.

[jgm]

sorry, I think you need to prefix it with {\rtf1 and suffix with }.

[jgm]

Here's a minimal diff:
Works:

{\rtf1
\trowd
\cellx3245
\cellx6490
\cellx9735
\pard\intbl A\cell
\pard\intbl B\cell
\pard\intbl C\cell
\row
\trowd
\pard\intbl 1\cell
\pard\intbl 2\cell
\pard\intbl 3\cell
\row
}

Bad nested tables:

{\rtf1
\trowd
\cellx3245
\cellx6490
\cellx9735
\pard\intbl\plain A\cell
\pard\intbl B\cell
\pard\intbl C\cell
\row
\trowd
\pard\intbl 1\cell
\pard\intbl 2\cell
\pard\intbl 3\cell
\row
}

[jgm]

Basic problem is that \plain should only reset character properties, but it also resets paragraph properties.

[jgm]

Your table also has \row (which ends a table row) with a \trowd (which starts it). As I read the spec this is wrong, but it may be something that is also acceptable or at least accommodated by renderers.

[jgm]

Yeah, on closer reading the trowd seems optional.

[jgm]

I think this should be addressed with commit 08f9a91