#APPTYPE CONSOLE

DIM s = "roko, mat jane do"

IF LEFT(s, 4) = "roko" THEN PRINT STRENC(s), " starts with ", STRENC("roko")
IF INSTR(s, "mat") THEN PRINT STRENC(s), " contains ", STRENC("mat"), " at ", INSTR
IF RIGHT(s, 2) = "do" THEN PRINT STRENC(s), " ends with ", STRENC("do")
PRINT STRENC(s), " contains ", STRENC("o"), " at the following locations:", InstrEx(s, "o")

PAUSE

SUB InstrEx(mane, match)
    INSTR = 0
    WHILE INSTR(mane, match, INSTR + 1): PRINT " ", INSTR;: WEND
END SUB