{
  "$schema": "http://json-schema.org/draft-04/schema#",

  "title": "ISO 3166-3",
  "description": "ISO 3166-3 formerly used country codes",
  "type": "object",

  "properties": {
	"3166-3": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "alpha_2": {
            "description": "Two letter alphabetic code of the item",
            "type": "string",
            "pattern": "^[A-Z]{2}$"
          },
          "alpha_3": {
            "description": "Three letter alphabetic code of the item",
            "type": "string",
            "pattern": "^[A-Z]{3}$"
          },
          "alpha_4": {
            "description": "Four letter alphabetic code of the item",
            "type": "string",
            "pattern": "^[A-Z]{2,4}$"
          },
          "name": {
            "description": "Name of the item",
            "type": "string",
            "minLength": 1
          },
          "numeric": {
            "description": "Three digit numeric code of the item, including leading zeros (optional)",
            "type": "string",
            "pattern": "^[0-9]{3}$"
          },
          "comment": {
            "description": "Comment for the item (optional)",
            "type": "string",
            "minLength": 1
          },
          "withdrawal_date": {
            "description": "Date of withdrawal from ISO 3166-1 (optional)",
            "type": "string",
            "pattern": "^[0-9]{4}(|-[0-9]{2}){2}$"
          }
        },
        "required": ["alpha_2", "alpha_3", "alpha_4", "name"],
        "additionalProperties": false
      }
    }
  },
  "additionalProperties": false
}