Nested arrays of tables misbehave

[bensmrs]

Hi,

I’m having some problems with nested arrays of tables.
Arrays of tables are supported:

# Toml.Parser.from_string "foo=[{bar=42}]" |> Toml.Parser.unsafe |> Toml.Printer.string_of_table;;
- : string = "[[foo]]\nbar = 42\n"

However, adding one additional level of nesting generates invalid TOML:

# Toml.Parser.from_string "foo=[[{bar=42}]]" |> Toml.Parser.unsafe |> Toml.Printer.string_of_table;;
- : string = "foo = [[[]]\nbar = 42\n]\n"

The source stream is properly parsed, but the printer has trouble generating a meaningful output.