Enum

DB_BTREE
DB_HASH
DB_RECNO
REG_BADBR
REG_BADPAT
REG_BADRPT
REG_EBRACE
REG_EBRACK
REG_ECOLLATE
REG_ECTYPE
REG_EEND
REG_EESCAPE
REG_EPAREN
REG_ERANGE
REG_ERPAREN
REG_ESIZE
REG_ESPACE
REG_ESUBREG
REG_NOERROR
REG_NOMATCH