Schema for the data filter file introduced in unicode-org/icu#301

icu-data-filter-schema.json

{
    "$id": "http://unicode.org/icu-filter-schema",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "description": "JSON Schema for an ICU data filter file",
    "type": "object",
    "properties": {
        "localeFilter": { "$ref": "#/definitions/filter" },
        "featureFilters": {
            "type": "object",
            "properties": {
                "brkitr_dictionaries":  { "$ref": "#/definitions/filter" },
                "brkitr_index": { "$ref": "#/definitions/filter" },
                "brkitr_rules": { "$ref": "#/definitions/filter" },
                "brkitr_tree": { "$ref": "#/definitions/filter" },
                "cnvalias": { "$ref": "#/definitions/filter" },
                "coll_index": { "$ref": "#/definitions/filter" },
                "coll_tree": { "$ref": "#/definitions/filter" },
                "coll_ucadata": { "$ref": "#/definitions/filter" },
                "confusables": { "$ref": "#/definitions/filter" },
                "conversion": { "$ref": "#/definitions/filter" },
                "curr_index": { "$ref": "#/definitions/filter" },
                "curr_supplemental": { "$ref": "#/definitions/filter" },
                "curr_tree": { "$ref": "#/definitions/filter" },
                "lang_index": { "$ref": "#/definitions/filter" },
                "lang_tree": { "$ref": "#/definitions/filter" },
                "locales_index": { "$ref": "#/definitions/filter" },
                "locales_tree": { "$ref": "#/definitions/filter" },
                "misc": { "$ref": "#/definitions/filter" },
                "normalization": { "$ref": "#/definitions/filter" },
                "rbnf_index": { "$ref": "#/definitions/filter" },
                "rbnf_tree": { "$ref": "#/definitions/filter" },
                "region_index": { "$ref": "#/definitions/filter" },
                "region_tree": { "$ref": "#/definitions/filter" },
                "stringprep": { "$ref": "#/definitions/filter" },
                "translit": { "$ref": "#/definitions/filter" },
                "unames": { "$ref": "#/definitions/filter" },
                "unit_index": { "$ref": "#/definitions/filter" },
                "unit_tree": { "$ref": "#/definitions/filter" },
                "zone_index": { "$ref": "#/definitions/filter" },
                "zone_tree": { "$ref": "#/definitions/filter" }
            },
            "additionalProperties": false
        }
    },
    "additionalProperties": false,
    "definitions": {
        "filter": {
            "type": "object",
            "oneOf": [
                {
                    "properties": {
                        "filterType": { "$ref": "#/definitions/filterType" },
                        "whitelist": { "$ref": "#/definitions/stringList" }
                    },
                    "required": ["whitelist"],
                    "additionalProperties": false
                },
                {
                    "properties": {
                        "filterType": { "$ref": "#/definitions/filterType" },
                        "blacklist": { "$ref": "#/definitions/stringList" }
                    },
                    "required": ["blacklist"],
                    "additionalProperties": false
                },
                {
                    "properties": {
                        "filterType": { "$ref": "#/definitions/filterType" }
                    },
                    "additionalProperties": false
                }
            ]
        },
        "filterType": {
            "type": "string",
            "enum": [
                "file-stem",
                "language",
                "regex",
                "exclude"
            ]
        },
        "stringList": {
            "type": "array",
            "items": {
                "type": "string"
            },
            "minItems": 1,
            "uniqueItems": true
        }
    }
}