MID$                     Substring in Middle                         Function

s$ = MID$(stringexpr,n[,length])

    Returns a specified number of characters from a specified string,
    beginning at a specified character position.

  stringexpr    A string expression.

           n    A numeric expression in the range 1 to 32767;, specifies
                the character position from which the substring is to be
                extracted.

      length    A numeric expression in the range 0 to 32767; specifies
                the number of characters to return.

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      Notes:    If length is omitted, MID$ returns all the characters in
                the string beginning at character n.

                MID$ may also be used as a statement.