Draw a line

        Loop over a single cell length, over all the cells

def _draw_line(self, line, isheader=False):
        """Draw a line

        Loop over a single cell length, over all the cells
        """

        line = self._splitit(line, isheader)
        space = " "
        out  = ""
        for i in range(len(line[0])):
            if self._has_border():
                out += "%s " % self._char_vert
            length = 0
            for cell, width, align in zip(line, self._width, self._align):
                length += 1
                cell_line = cell[i]
                fill = width - len(cell_line)
                if isheader:
                    align = "c"
                if align == "r":
                    out += "%s " % (fill * space + cell_line)
                elif align == "c":
                    out += "%s " % (fill/2 * space + cell_line \
                            + (fill/2 + fill%2) * space)
                else:
                    out += "%s " % (cell_line + fill * space)
                if length < len(line):
                    out += "%s " % [space, self._char_vert][self._has_vlines()]
            out += "%s\n" % ['', self._char_vert][self._has_border()]
        return out