check_ucd, check_controlled_vocabulary=False, has_colon=False)[source]

Returns False if ucd is not a valid unified content descriptor.

ucd : str

The UCD string

check_controlled_vocabulary : bool, optional

If True, then each word in the UCD will be verified against the UCD1+ controlled vocabulary, (as required by the VOTable specification version 1.2), otherwise not.

has_colon : bool, optional

If True, the UCD may contain a colon (as defined in earlier versions of the standard).

valid : bool