1 POS
 The POS function searches for a substring within a string and returns  the
 substring's starting character position.

 Example

 Y% = POS(Alpha$, "JKLMN", 1%)

2 Syntax

     int-var = POS(str-exp1, str-exp2, int-exp)

 Int-exp specifies the character position in the main  string  (str-exp1)
 at which the search for the first occurrence of str-exp2 starts.