{ "$schema": "http://json-schema.org/draft-04/schema#", "title": "ISO 639-2", "description": "ISO 639-2 language codes", "type": "object", "properties": { "639-2": { "type": "array", "items": { "type": "object", "properties": { "alpha_3": { "description": "Three letter terminology code of the language", "type": "string", "pattern": "^[a-z]{3}(-[a-z]{3})?$" }, "name": { "description": "Name of the item", "type": "string", "minLength": 1 }, "alpha_2": { "description": "Two letter alphabetic code of the language from part 1 (optional)", "type": "string", "pattern": "^[a-z]{2}$" }, "bibliographic": { "description": "Three letter bibliographic code of the language (optional)", "type": "string", "pattern": "^[a-z]{3}$" }, "common_name": { "description": "Common name of the language (optional)", "type": "string", "minLength": 1 } }, "required": ["alpha_3", "name"], "additionalProperties": false } } }, "additionalProperties": false }