blambeau/qrb

# Mapping with the host language (can be provided by the binding itself)
Boolean = .TrueClass|.FalseClass
String  = .String
Real    = .Float
Integer = .Integer
Date    = .Date <iso8601> .String \( s | Date.iso8601(s)   )
                                  \( t | t.iso8601         )
Time    = .Time <iso8601> .String \( s | DateTime.parse(s) )
                                  \( t | t.iso8601         )

# Some reusable data types (could be reused across schemas)
Uuid        = String( s | s.size == 36 )
Dose        = <as> Real( f |  f >= 0.0 and f <= 1.0 )
Gender      = <as> String( s | s == 'M' or s == 'F' )
Duration    = <minutes> Integer( i | i > 0 )
Name        = String( s | s.strip.size > 0 )
Appointment = {
  at: Time,
  duration: Duration,
  fixed: Boolean
}

# The main schema, for instance for a RESTful resource or a NoSQL
# database
{{
  id: Uuid,
  diagnosis_date: Date,
  patient: {
    id: Uuid,
    name: Name,
    gender: Gender
  },
  appointments: {Appointment}
}}