An object of this class represents the age code. For its values, see the specification.
We use the base class described in Section 27, “
class SingleField: Generic
single-character field”, which does most of the
work. All we have to do is define the
class attributes that describe the new and old age codes.
VALID_CODES does not contain a space
character, because the age code is required.
class AgeCodeField(SingleField): '''Represents an age code. Exports: as inherited. ''' VALID_CODES = "012456789" OLD_TRANSLATOR = string.maketrans ( "UAHLSO", "012456")
Scans an age code field. Most of the work is done by
Section 27.1, “
SingleField.scanField()”; we have only to
supply our own class, and an extra argument to that
method that describes the field in English for error
# - - - A g e C o d e F i e l d . s c a n F i e l d - - - @staticmethod def scanField(encounter, scan, fieldName): '''Scan an age code field. ''' SingleField.scanField(encounter, scan, fieldName, AgeCodeField, "age code")