String Functions:
  Overview        About these routines
  XPupper()       Return uppercase equivalent of foreign chars too           .
  XPtranslate()   Translate a string using any table.                        .
  XPreverse()     Reverse a String.
  XPpackStr()     Perform some simple Packing method on a string
  XPunpackStr()   Unpack string packed by XPpackStr().
  XPencode()      Perform some simple Encoding on a string
  XPdecode()      Decode a string coded by XPencode()
  XPcheckSum()    Perform a simple CheckSum on a Memo/Char variable          .
  XPnextStr()     Useful string function for a SEEK of the last occurence    .