{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://openeik.org/schemas/0.1/registry/extensions.schema.json",
  "$comment": "Written by hand from spec Part I, 11 and registry/README.md, not generated: tools/generate-schemas.mjs keeps it as it is and checks it for banned words.",
  "title": "Extension registry",
  "description": "The prefixes registered for applications' extensions, and the names OpenEik reserves (spec Part I, 11.1): registry/extensions.json in the specification's repository. The rules a schema cannot state (each name once and in order, no prefix reserved, none given to another registrant) are checked by the repository's tests and kept by its editors. Unlike the schemas of a model's files, which keep the members they do not know (Part I, 10), this schema refuses them: the registry is edited by hand and read by tools, and a misspelt member (contacts for contact) would otherwise pass unnoticed.",
  "type": "object",
  "properties": {
    "prefixes": {
      "description": "The registered prefixes, in the order of their names.",
      "type": "array",
      "items": {
        "$ref": "#/$defs/registration"
      }
    },
    "reserved": {
      "description": "The names no application registers: the standard's own, and the folders at the top of a model's folder, now and planned. A name that ends in -* reserves every prefix that starts with it but for the star.",
      "type": "array",
      "items": {
        "$ref": "#/$defs/reservation"
      }
    }
  },
  "required": [
    "prefixes",
    "reserved"
  ],
  "additionalProperties": false,
  "$defs": {
    "prefix": {
      "description": "A prefix (Part I, 11.1, rule 1): 2 to 32 lowercase ASCII letters, digits and hyphens, from a letter to a letter or a digit, no two hyphens side by side, and no device name of a common operating system.",
      "type": "string",
      "minLength": 2,
      "maxLength": 32,
      "pattern": "^[a-z][a-z0-9]*(-[a-z0-9]+)*$",
      "not": {
        "pattern": "^(con|prn|aux|nul|com[0-9]|lpt[0-9])$"
      }
    },
    "date": {
      "description": "A day, as YYYY-MM-DD.",
      "type": "string",
      "pattern": "^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$"
    },
    "registration": {
      "description": "A registered prefix.",
      "type": "object",
      "properties": {
        "prefix": {
          "$ref": "#/$defs/prefix"
        },
        "registrant": {
          "description": "Who registered it: the organisation, project or person that makes the application, as it wants to be named.",
          "type": "string",
          "minLength": 1,
          "maxLength": 120
        },
        "contact": {
          "description": "How to reach whoever answers for the prefix: an email address (a role address rather than a person's) or an https URL (an issue tracker, a contact page).",
          "type": "string",
          "pattern": "^([^@\\s]+@[^@\\s]+\\.[^@\\s]+|https://[^\\s]+)$"
        },
        "description": {
          "description": "What the application is and what its extension adds, in a sentence or two.",
          "type": "string",
          "minLength": 1,
          "maxLength": 280
        },
        "url": {
          "description": "Where the extension's members and files are described, if anywhere.",
          "type": "string",
          "pattern": "^https://[^\\s]+$"
        },
        "registered": {
          "description": "The day the registration was merged.",
          "$ref": "#/$defs/date"
        },
        "withdrawn": {
          "description": "The day its registrant withdrew it, if it did. A withdrawn prefix is never registered again (Part I, 11.1, rule 4).",
          "$ref": "#/$defs/date"
        },
        "notes": {
          "description": "The editors' notes: what a version of OpenEik took into the core, in which version and under which name (Part I, 11.4), or a change of registrant.",
          "type": "string",
          "minLength": 1
        }
      },
      "required": [
        "prefix",
        "registrant",
        "contact",
        "description",
        "registered"
      ],
      "additionalProperties": false
    },
    "reservation": {
      "description": "A name OpenEik reserves.",
      "type": "object",
      "properties": {
        "name": {
          "description": "A prefix, or a prefix and -* for every prefix that starts with that prefix and a hyphen.",
          "anyOf": [
            {
              "$ref": "#/$defs/prefix"
            },
            {
              "type": "string",
              "maxLength": 32,
              "pattern": "^[a-z][a-z0-9]*(-[a-z0-9]+)*-[*]$"
            }
          ]
        },
        "reason": {
          "type": "string",
          "minLength": 1
        }
      },
      "required": [
        "name",
        "reason"
      ],
      "additionalProperties": false
    }
  }
}