XML-INTO definition question

Given this XML example, how would this be defined using the XML-INTO opcode. I'm especially interested in how to define the attributes within the tags, which define the context of the data in the tag, such as:

<datafield tag="035" ind1="" ind2="">
or

<subfield code="a">
<subfield code="d">

----------------

<?xml version="1.0" encoding="UTF-8"?>
<collection>
<record>
<leader>cam a2200325Ia 4500</leader>
<controlfield tag="005">20131214065550.0</controlfield>
<controlfield tag="008">101130s1996 enk 000 0 eng u</controlfield>
<controlfield tag="001">990016589460302486</controlfield>
<datafield tag="035" ind1="" ind2="">
<subfield code="a">(Aleph)001658946EMU01</subfield>
</datafield>
<datafield tag="035" ind1="9" ind2="">
<subfield code="a">u3561214</subfield>
</datafield>
<datafield tag="040" ind1="" ind2="">
<subfield code="d">UtOrBLW</subfield>
</datafield>
<datafield tag="090" ind1="" ind2="">
<subfield code="a">ND497.G2</subfield>
<subfield code="b">G38 1996</subfield>
</datafield>
<datafield tag="245" ind1="0" ind2="0">
<subfield code="a">Gainsborough's House review, 1995/96.</subfield>
</datafield>
<datafield tag="264" ind1="" ind2="1">
<subfield code="a">Sudbury, Suffolk :</subfield>
<subfield code="b">Gainsborough's House Society,</subfield>
<subfield code="c">[1996?]</subfield>
</datafield>
<datafield tag="300" ind1="" ind2="">
<subfield code="a">84 pages :</subfield>
<subfield code="b">illustrations ;</subfield>
<subfield code="c">24 cm</subfield>
</datafield>
<datafield tag="336" ind1="" ind2="">
<subfield code="a">text</subfield>
<subfield code="b">txt</subfield>
<subfield code="2">rdacontent</subfield>
</datafield>
<datafield tag="337" ind1="" ind2="">
<subfield code="a">unmediated</subfield>
<subfield code="b">n</subfield>
<subfield code="2">rdamedia</subfield>
</datafield>
<datafield tag="338" ind1="" ind2="">
<subfield code="a">volume</subfield>
<subfield code="b">nc</subfield>
<subfield code="2">rdacarrier</subfield>
</datafield>
<datafield tag="590" ind1="" ind2="">
<subfield code="a">The High Museum of Art's copy is non-circulating, available only for use on-site at the High Museum. Please ask at the Woodruff Library Service Desk to set up an appointment to use this book.</subfield>
</datafield>
<datafield tag="600" ind1="1" ind2="0">
<subfield code="a">Gainsborough, Thomas,</subfield>
<subfield code="d">1727-1788</subfield>
<subfield code="v">Periodicals.</subfield>
</datafield>
<datafield tag="610" ind1="2" ind2="0">
<subfield code="a">Gainsborough's House</subfield>
<subfield code="v">Periodicals.</subfield>
</datafield>
<datafield tag="610" ind1="2" ind2="0">
<subfield code="a">Gainsborough's House Society</subfield>
<subfield code="v">Periodicals.</subfield>
</datafield>
<datafield tag="710" ind1="2" ind2="">
<subfield code="a">Gainsborough's House Society.</subfield>
</datafield>
<datafield tag="910" ind1="" ind2="">
<subfield code="a">RDA ENRICHED</subfield>
</datafield>
<datafield tag="910" ind1="" ind2="">
<subfield code="a">MARS</subfield>
</datafield>
<datafield tag="945" ind1="" ind2="">
<subfield code="a">EMU mm</subfield>
</datafield>
<datafield tag="940" ind1="" ind2="">
<subfield code="a">HIGH</subfield>
</datafield>
<datafield tag="999" ind1="" ind2="">
<subfield code="p">0</subfield>
<subfield code="e">02</subfield>
<subfield code="b">3561214-1001</subfield>
<subfield code="m">UNIVDX</subfield>
<subfield code="o">UNIVDX</subfield>
<subfield code="d">BOOK</subfield>
<subfield code="f">1</subfield>
<subfield code="n">LSC</subfield>
<subfield code="a">2360241920002486</subfield>
<subfield code="l">LSC</subfield>
<subfield code="q">ND497 .G2 G38 1996 HMA WOP</subfield>
</datafield>
</record>

... repeating <record> groups...

</collection>

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