DEFINE_ADDFUNC(source, XREF_SOUR)
DEFINE_DELETEFUNC(source)
DEFINE_GETXREFFUNC(source, XREF_SOUR)
DEFINE_ADDFUNC(source, XREF_SOUR)
DEFINE_DELETEFUNC(source)
DEFINE_GETXREFFUNC(source, XREF_SOUR)
DEFINE_REC_CB(source, sour_start)
DEFINE_NULL_CB(source, sour_data_start)
DEFINE_REC_CB(source, sour_start)
DEFINE_NULL_CB(source, sour_data_start)