def _do_attr(self, n, value):
W = self.write<EOL>W('<STR_LIT:U+0020>')<EOL>W(n)<EOL>W('<STR_LIT>')<EOL>s = string.replace(value, "<STR_LIT:&>", "<STR_LIT>")<EOL>s = string.replace(s, "<STR_LIT:<>", "<STR_LIT>")<EOL>s = string.replace(s, '<STR_LIT:">', '<STR_LIT>')<EOL>s = string.replace(s, '<STR_LIT>', '<STR_LIT>')<EOL>s = string.replace(s, '<STR_LIT>', '<STR_LIT>')<EOL>s = string.replace(s, '<STR_LIT>', '<STR_LIT>')<EOL>W(s)<EOL>W('<STR_LIT:">')<EOL>
_do_attr(self, node) -> None
        Process an attribute.