Does TOML support nested arrays of objects/tables? - json

Question

I want to generate JSON from TOML files. The JSON structure should be something like this, with arrays of objects within arrays of objects:
{
"things": [
{
"a": "thing1",
"b": "fdsa",
"multiline": "Some sample text."
},
{
"a": "Something else",
"b": "zxcv",
"multiline": "Multiline string",
"objs": [ // LOOK HERE
{ "x": 1},
{ "x": 4 },
{ "x": 3 }
]
},
{
"a": "3",
"b": "asdf",
"multiline": "thing 3.\nanother line"
}
]
}
I have some TOML that looks like the example below, but it doesn't seem to work with the objs section.
name = "A Test of the TOML Parser"
[[things]]
a = "thing1"
b = "fdsa"
multiLine = """
Some sample text."""
[[things]]
a = "Something else"
b = "zxcv"
multiLine = """
Multiline string"""
[[things.objs]] # MY QUESTION IS ABOUT THIS PART
x = 1
[[things.objs]]
x = 4
[[things.objs]]
x = 3
[[things]]
a = "3"
b = "asdf"
multiLine = """
thing 3.
another line"""
Is there a way to do it in TOML? JSON to TOML converters don't seem to work with my example. And does it work with deeper nesting of arrays of arrays/tables?

Answer 1

As per the PR that merged this feature in the main TOML repository, this is the correct syntax for arrays of objects:
[[products]]
name = "Hammer"
sku = 738594937
[[products]]
[[products]]
name = "Nail"
sku = 284758393
color = "gray"
Which would produce the following equivalent JSON:
{
"products": [
{ "name": "Hammer", "sku": 738594937 },
{ },
{ "name": "Nail", "sku": 284758393, "color": "gray" }
]
}

Answer 2

I'm not sure why it wasn't working before, but this seems to work:
name = "A Test of the TOML Parser"
[[things]]
a = "thing1"
b = "fdsa"
multiLine = """
Some sample text."""
[[things]]
a = "Something else"
b = "zxcv"
multiLine = """
Multiline string"""
[[things.objs]]
x = 1
[[things.objs]]
x = 4
[[things.objs]]
x = 7
[[things.objs.morethings]]
y = [
2,
3,
4
]
[[things.objs.morethings]]
y = 9
[[things]]
a = "3"
b = "asdf"
multiLine = """
thing 3.
another line"""
JSON output:
{
"name": "A Test of the TOML Parser",
"things": [{
"a": "thing1",
"b": "fdsa",
"multiLine": "Some sample text."
}, {
"a": "Something else",
"b": "zxcv",
"multiLine": "Multiline string",
"objs": [{
"x": 1
}, {
"x": 4
}, {
"x": 7,
"morethings": [{
"y": [2, 3, 4]
}, {
"y": 9
}]
}]
}, {
"a": "3",
"b": "asdf",
"multiLine": "thing 3.\\nanother line"
}]
}