The Replace a Substring routine copies a source string to a
    destination string, replacing part of the string with another
    string. The substring to be replaced is specified by its starting
    and ending positions.

    Format

      STR$REPLACE  destination-string ,source-string ,start-position

                   ,end-position ,replacement-string

  Additional Information (explode) :

• Corresponding JSB Entry Point
• Returns
• Arguments