◄Directive Summary►  ◄Summary►
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  Syntax:  numericlabel INSTR [start,]string1,string2
 
  Returns the starting position of string2 inside string1; the result is
  a number assigned to numericlabel. The first character is indexed as
  1. INSTR returns 0 if string1 is not found.
 
  numericlabel   Name of the resulting constant.
 
  start          Starting position of the search (default value: 1).
 
  string1        The string being searched.
 
  string2        The string to search for.
 
   See Also:  CATSTR, SIZESTR, SUBSTR
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