Juvenal plumage code; derived from Section 27, “class SingleField: Generic
single-character field”. For valid codes, see
the specification.
# - - - - - c l a s s J u v e n a l F i e l d - - - - -
class JuvenalField(SingleField):
'''Represents a juvenal plumage code.
'''
VALID_CODES = "0123 "
@staticmethod
def scanField(encounter, scan, fieldName):
'''Scan a juvenal plumage code.
'''
SingleField.scanField(encounter, scan, fieldName,
JuvenalField, "juvenal plumage")