dump the contents of all pages, ignoring links between pages,
        this will enable you to view contents of pages which have become
        lost due to datacorruption.

def pagedump(self):
        """
        dump the contents of all pages, ignoring links between pages,
        this will enable you to view contents of pages which have become
        lost due to datacorruption.
        """
        self.fh.seek(self.pagesize)
        pn = 1
        while True:
            try:
                pagedata = self.fh.read(self.pagesize)
                if len(pagedata) == 0:
                    break
                elif len(pagedata) != self.pagesize:
                    print("%06x: incomplete - %d bytes ( pagesize = %d )" % (pn, len(pagedata), self.pagesize))
                    break
                elif pagedata == b'\x00' * self.pagesize:
                    print("%06x: empty" % (pn))
                else:
                    page = self.page(pagedata)

                    print("%06x: preceeding = %06x, reccount = %04x" % (pn, page.preceeding, page.count))
                    for ent in page.index:
                        print("    %s" % ent)
            except Exception as e:
                print("%06x: ERROR decoding as B-tree page: %s" % (pn, e))
            pn += 1