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APPENDIX B
BASIC-SO
RESERVED WORDS
The following list shows 126 words that cannot be used
as
names
of
variables.
If
you
attempt to
do
so, errors,
error
messages, or both will result. A valid variable name
is
one or more alphanumeric characters, the first
of
which must be a letter.
If
more
than
two characters are given, the rest are ignored.
ABS
AND
ASC
ATN
ATTRIB
AUTO
BASE
CDBL
CHR$
CINT
CLEAR
CLOSE
CO
NT
COS
CSNG
CVD
CVI
CVS
DATA
DEF
DEFDBL
DEFFN
DEFINT
DEFSNG
DEFSTR
DEFUSR
DELETE
DIM
DIR
DSKF
EDIT
ELSE
END
EOF
EQV
ERASE
ERL
ERR
ERROR
EXIT
EXP
FIELD
FIX
FN
FOR
FRE
GET
GOSUB
GOTO
HEX$
IF
IMP
INP
INPUT
INPUT$
INSTR
INT
KILL
LEFT
LEN
LET
LINE
LIST
LOAD
LOC
LOF
LOG
LSET
MERGE
MID$
MKD$
MKI$
MKS$
MOD
NEW
NEXT
NOT
NULL
OCT$
ON
OPEN
OPTION
OR
OUT
PEEK
POKE
POS
PRINT
PRUN
PUT
RANDOMIZE
READ
REM
RENAME
RENUM
RESUME
RESTORE
RETURN
RIGHT$
RND
RSET
RUN
SAVE
SON
SIN
SPACES$
SPC
SQR
STEP
STOP
STR$
STRINOS$
SWAP
TAB
TAN
THEN
TO
TROFF
TRON
USING
USR
VAL
VARPTR
WAIT
WIDTH
XOR
B-1