<root>
    <a attr="1">2</a>
    <a attr="01">02</a>
    <a attr="aaa">bbb</a>
    <a attr="0xA">0xB</a>
    <a attr="a1">b2</a>
    <a attr="0">0</a>
    <a attr="00">00</a>
    <a attr="00a">00b</a>
    <a attr="a00">b00</a>
    <a attr="2.54">2,54</a>
    <a attr="2.54.1">2,54,1</a>
    <a attr="Infinity">-Infinity</a>
    <a attr="+Infinity">NaN</a>
</root>
