abstract class $IS_NIL


Descendants
$NIL RECTANGLE RAT TOKEN
$STRINGS $FSTRINGS $FSTRING{_} FBINSTR
$FTEXT_STRING{_} $FTEXT_STRING{_,_,_} FSTR FRUNES
$STRING{_} $STRING{_,_,_} BINSTR $TEXT_STRING{_}
$TEXT_STRING{_,_,_} RUNES HEX_STR STR
$SEARCH{_,_} $VALUE{_} $ORDERED{_} ELAPSED
ANGLE TIME_STAMP UNICODE ANGLED
$DATES{_} DATES ERA_DATES $CHAR{_}
RUNE CHAR ORDER_WEIGHT CHAR_CODE
$NFE{_} $WHOLE_NUM{_} $CARDINAL{_} FIELD
CARD $INTEGER{_} INT INTI
MONEY $ARITHMETIC{_} $RATIONAL{_} $REAL{_}
FLT FLTD $COMPLEX{_,_} CPXD
CPX $SIMPLE_NUM{_} TIMES $ENUMS{_}
NAME_CODES DT_CODES CURSOR_ERRORS NUM_SIGNS
SCRIPTS WEEKDAYS MAP_PARTS FILE_LOCS
VERSION_KEYS CHAR_CLASS CHAR_MAPPINGS PHONE_CODES
SYS_CHANS FLUSH_CMDS MONTHS TIME_SUFFIX
CONDITIONALS ERE_ERROR_KINDS PATH_KINDS CODE_KINDS
CAT_STANDARDS ERE_LEX_TOKENS DATE_SUFFICES FILE_MODES
SIGN_POSITIONS MON_SPACING INFO_KINDS PERMISSIONS
DATE_FORMS ACCESS_CODES ADDRESS_KEYS CONVERSION_RESULTS
FILE_KINDS ADDRESS_CODES MONETARY_UNITS TRI_STATE
CATEGORIES MAP_MODES CAL_DISPLAY_ORDERS UNITS
SYMBOLS DIRECTIONS UNIT_KINDS SYS_EXCEPT
SALUTATIONS



Public


Features
is_nil : BOOL ;

The Sather Home Page