YAML tags

[krenyy]

Hello!

I noticed, that when using this tool for YAML, tagged values are converted to null, which is something I would not expect.

> cat asdf.yml 
some: value
a: !tagged value

> yq asdf.yml
some: value
a: !tagged value

> qq asdf.yml 
{
  "a": null,
  "some": "value"
}

Not sure, what solution would be the best, but I think returning null is not intended.

Ways to address this:

• return a JSON with keys tag and value.
• just return the underlying type (in this case string)
• add some kind of prefix -- QQ_YAML_TAGGED(<TAG>):<VALUE>