LET basestring$ = "abcdefghijklmnopqrstuvwxyz"
LET n = 12
LET m = 5
! starting from n characters in and of m length;
PRINT (basestring$)[n:n + m - 1]
! starting from n characters in, up to the end of the string;
PRINT (basestring$)[n:MAXNUM]
! whole string minus last character;
PRINT (basestring$)[1:LEN(basestring$) - 1]
! starting from a known character within the string and of m length;
PRINT (basestring$)[POS(basestring$,"b"):POS(basestring$,"b") + m - 1]
! starting from a known subString$ within the string and of m length.
LET findstring$ = "pq"
PRINT (basestring$)[POS(basestring$,findstring$):POS(basestring$,findstring$) + m - 1]
END