// crubal.com/units: the units table (chapter 1.4.3, 11.9). Units are reference records of the kind "measure";
// currencies are records of the kind "currency". Readers fold the spellings and convert within a dimension.
package: units /2026-10-15
  owner: crubal.com
  label: Units and currencies
  crubal: 2
  licence: CC-BY-4.0

kind: measure
  levels: measure
  base: Measure

kind: currency
  levels: currency
  base: Currency

facet: dimension
  type: choice
  values: time, length, mass, volume, area, temperature, data, count
  describe: The dimension a unit measures; units convert only within one. The list grows by versions of this package.

facet: factor
  type: number
  describe: How many of the dimension's base unit one of this unit is (s, m, kg, L, m2, K, B, each).

facet: offset
  type: number
  describe: For a unit whose zero isn't the base's (°C, °F): the base-unit amount at this unit's zero. An amount in base units is amount × factor + offset.

facet: spellings
  type: text
  pick: any
  describe: Other ways intake may write this unit; folded case-insensitively.

facet: uncefact
  type: text
  label: UN/CEFACT code
  describe: The unit's UN/CEFACT Recommendation 20 code, for borders that use it. Never a spelling.

facet: rounding
  type: number
  describe: On a dimension's base unit record: the decimal places a conversion keeps when the facet states none.

facet: places
  type: number
  describe: A currency's decimal places (ISO 4217 minor units).

facet: name
  type: text

class: Measure
  for: measure
  facets:
    !dimension
    !factor
    offset
    rounding
    spellings
    uncefact

class: Currency
  for: currency
  facets:
    !name
    !places