Lua filters: add SimpleTable for backwards compatibility (#6575)

A new type `SimpleTable` is made available to Lua filters. It is
similar to the `Table` type in pandoc versions before 2.10;
conversion functions from and to the new Table type are provided.

Old filters using tables now require minimal changes and can use,
e.g.,

    if PANDOC_VERSION > {2,10,1} then
      pandoc.Table = pandoc.SimpleTable
    end

and

    function Table (tbl)
      tbl = pandoc.utils.to_simple_table(tbl)
      …
      return pandoc.utils.from_simple_table(tbl)
    end

to work with the current pandoc version.

1 files changed, 1 insertions, 0 deletions

diff --git a/.hlint.yaml b/.hlint.yaml
index 5c262c3d0..d68823cba 100644
--- a/.hlint.yaml
+++ b/.hlint.yaml
@@ -78,6 +78,7 @@
       - Tests.Writers.Native
       - Text.Pandoc.Extensions
       - Text.Pandoc.Lua.Marshaling.Version
+      - Text.Pandoc.Lua.Module.Utils
       - Text.Pandoc.Readers.Odt.ContentReader
       - Text.Pandoc.Readers.Odt.Namespaces