{
    "$schema": "http://json-schema.org/draft-07/schema",
    "$id": "kendo-cli://schemas/css-number.json",
    "title": "Schema definition for CSS number",

    "$defs": {

        "zero": {
            "oneOf": [
                {
                    "type": "number",
                    "const": 0
                },
                {
                    "type": "string",
                    "const": "0"
                }
            ]
        },

        "positive-length": {
            "oneOf": [
                { "$ref": "#/$defs/zero" },
                {
                    "type": "string",
                    "oneOf": [
                        {
                            "pattern": "^\\d+(px|pt|pc|in|mm|cm|%|em|ex|ch|rem|vw|vh|vmin|vmax)$"
                        },
                        {
                            "pattern": "^\\d+\\.(px|pt|pc|in|mm|cm|%|em|ex|ch|rem|vw|vh|vmin|vmax)$"
                        },
                        {
                            "pattern": "^\\d+\\.\\d+(px|pt|pc|in|mm|cm|%|em|ex|ch|rem|vw|vh|vmin|vmax)$"
                        },
                        {
                            "pattern": "^\\.\\d+(px|pt|pc|in|mm|cm|%|em|ex|ch|rem|vw|vh|vmin|vmax)$"
                        }
                    ]
                }
            ]
        },

        "negative-length": {
            "oneOf": [
                {
                    "type": "string",
                    "oneOf": [
                        {
                            "pattern": "^-\\d+(px|pt|pc|in|mm|cm|%|em|ex|ch|rem|vw|vh|vmin|vmax)$"
                        },
                        {
                            "pattern": "^-\\d+\\.(px|pt|pc|in|mm|cm|%|em|ex|ch|rem|vw|vh|vmin|vmax)$"
                        },
                        {
                            "pattern": "^-\\d+\\.\\d+(px|pt|pc|in|mm|cm|%|em|ex|ch|rem|vw|vh|vmin|vmax)$"
                        },
                        {
                            "pattern": "^-\\.\\d+(px|pt|pc|in|mm|cm|%|em|ex|ch|rem|vw|vh|vmin|vmax)$"
                        }
                    ]
                }
            ]
        },

        "css-length": {
            "oneOf": [
                { "$ref": "#/$defs/positive-length" },
                { "$ref": "#/$defs/negative-length" }
            ]
        }

    }
}