Snippet JSON Schema Attempt

snippet-schema.json

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "properties": {
    "any": {
      "anyOf": [
        { "$ref": "#/definitions/tabstop" },
        { "$ref": "#/definitions/placeholder" },
        { "$ref": "#/definitions/choice" },
        { "$ref": "#/definitions/variable" },
        { "$ref": "#/definitions/text" }
      ]
    },
    "tabstop": {
      "anyOf": [
        { "$ref": "#/definitions/tabstopInt" },
        { "$ref": "#/definitions/tabstopIntTransform" }
      ]
    },
    "placeholder": {
      "$ref": "#/definitions/placeholderIntAny"
    },
    "choice": {
      "$ref": "#/definitions/choiceIntTextArray"
    },
    "variable": {
      "anyOf": [
        { "$ref": "#/definitions/variableVar" },
        { "$ref": "#/definitions/variableVarAny" },
        { "$ref": "#/definitions/variableVarTransform" }
      ]
    },
    "transform": {
      "$ref": "#/definitions/transformRegexFormatArrayOptions"
    },
    "format": {
      "anyOf": [
        { "$ref": "#/definitions/formatInt" },
        { "$ref": "#/definitions/formatIntCase" },
        { "$ref": "#/definitions/formatIntIf" },
        { "$ref": "#/definitions/formatIntElse" }
      ]
    },
    "regex": {
      "type": "string",
      "pattern": "^/.*/[a-zA-Z]*$"
    },
    "options": {
      "type": "string",
      "pattern": "^[a-zA-Z]*$"
    },
    "var": {
      "type": "string",
      "pattern": "^[_a-zA-Z][_a-zA-Z0-9]*$"
    },
    "int": {
      "type": "integer",
      "minimum": 0
    },
    "text": {
      "type": "string"
    }
  },
  "definitions": {
    "tabstopInt": {
      "type": "integer",
      "minimum": 0
    },
    "tabstopIntTransform": {
      "type": "object",
      "properties": {
        "tabstop": { "$ref": "#/definitions/tabstopInt" },
        "transform": { "$ref": "#/definitions/transform" }
      },
      "required": ["tabstop", "transform"],
      "additionalProperties": false
    },
    "placeholderIntAny": {
      "type": "object",
      "properties": {
        "placeholder": { "$ref": "#/definitions/placeholderInt" },
        "any": { "$ref": "#/definitions/any" }
      },
      "required": ["placeholder", "any"],
      "additionalProperties": false
    },
    "placeholderInt": {
      "type": "integer",
      "minimum": 0
    },
    "choiceIntTextArray": {
      "type": "object",
      "properties": {
        "choice": { "$ref": "#/definitions/choiceInt" },
        "text": {
          "type": "array",
          "items": { "type": "string" },
          "minItems": 1
        }
      },
      "required": ["choice", "text"],
      "additionalProperties": false
    },
    "choiceInt": {
      "type": "integer",
      "minimum": 0
    },
    "variableVar": {
      "type": "string",
      "pattern": "^[_a-zA-Z][_a-zA-Z0-9]*$"
    },
    "variableVarAny": {
      "type": "object",
      "properties": {
        "variable": { "$ref": "#/definitions/variableVar" },
        "any": { "$ref": "#/definitions/any" }
      },
      "required": ["variable", "any"],
      "additionalProperties": false
    },
    "variableVarTransform": {
      "type": "object",
      "properties": {
        "variable": { "$ref": "#/definitions/variableVar" },
        "transform": { "$ref": "#/definitions/transform" }
      },
      "required": ["variable", "transform"],
      "additionalProperties": false
    },
    "transformRegexFormatArrayOptions": {
      "type": "object",
      "properties": {
        "transform": { "$ref": "#/definitions/transform" },
        "regex": { "$ref": "#/definitions/regex" },
        "format": {
          "type": "array",
          "items": {
            "anyOf": [
              { "$ref": "#/definitions/formatInt" },
              { "$ref": "#/definitions/formatIntCase" },
              { "$ref": "#/definitions/formatIntIf" },
              { "$ref": "#/definitions/formatIntElse" },
              { "$ref": "#/definitions/text" }
            ]
          },
          "minItems": 1
        },
        "options": { "$ref": "#/definitions/options" }
      },
      "required": ["transform", "regex", "format", "options"],
      "additionalProperties": false
    },
    "formatInt": {
      "type": "integer",
      "minimum": 0
    },
    "formatIntCase": {
      "type": "object",
      "properties": {
        "format": { "$ref": "#/definitions/formatInt" },
        "case": {
          "type": "string",
          "enum": [
            "/upcase",
            "/downcase",
            "/capitalize",
            "/camelcase",
            "/pascalcase"
          ]
        }
      },
      "required": ["format", "case"],
      "additionalProperties": false
    },
    "formatIntIf": {
      "type": "object",
      "properties": {
        "format": { "$ref": "#/definitions/formatInt" },
        "if": { "type": "string" }
      },
      "required": ["format", "if"],
      "additionalProperties": false
    },
    "formatIntElse": {
      "type": "object",
      "properties": {
        "format": { "$ref": "#/definitions/formatInt" },
        "else": { "type": "string" }
      },
      "required": ["format", "else"],
      "additionalProperties": false
    }
  }
}