Commodore CBM - Len; MID

Examples:
?LEFT$("ARG".2)
A$=LEFT$(B$.10)
LEN
Prints AR.
LEN returns the length of the string argument.
Format:
LEN(arg)
where:
arg
is a string constant. variable. or expression.
LEN returns a number that is the count of characters in the specified string.
Examples:
?LEN("ABCDEF") Prints 6.
N=LEN(C$+D$)
MID$
MID$ returns any specified portion of a string.
Format:
1
(blank)l
MID$(arg.position
.count
where:
Return ail characters
from position to end.
Return count characters
starting from position.
count
arg
position
is a string constant. variable. or expression.
is a numeric constant. variable. or expression
specifying the character position in the string at
which retrieval is to begin. Position 1 is the
beginning of the string.
If the position is beyond
the end of the string. a
nu" string is returned.
This parameter must be in the range
O<position~255.
if present. is a numeric constant. variable. or ex-
pression
that specifies the number of charac-
ters to
be returned. If omitted. or if it is larger
than the
count to the end of the string. ail
characters fram the starting position to the end
of the string are returned. This parameter must
be in the range O<count<255.
An Illegal Quantity error message is printed if a parameter is out of range.
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