I need to review a lot of xml files and find the values of tag <mainterm type=??? > when the the '<descriptors> value is "CTC".

See one record in my xml file:


<item>

<bibrecord>

<item-info>

<copyright type="Els">Copyright 2007 AAA, All rights reserved.</copyright>

</item-info>

<head>

<citation-info>

<citation-type code="ar"/>

</citation-info>

<descriptorgroup>

<descriptors controlled="y" type="CCV">

<descriptor>

<mainterm weight="a">Corrosion protection</mainterm>

</descriptor>

</descriptors>

<descriptors controlled="y" type="CMH">
<br<descriptor>

<mainterm weight="a">Corrosion inhibitors</mainterm>

</descriptor>

</descriptors>

<descriptors controlled="y" type="CTC">

<descriptor>

<mainterm weight="a">G</mainterm>

</descriptor>

</descriptors>

</descriptorgroup>

</enhancement>

</head>

</bibrecord>

</item>

The output should be:

'<mainterm weight="a">G</mainterm>'

That means only when '<descriptors type="CTC"' then print the '<mainterm>' value.

Can you help me?

In reply to XML data reading/output by Anonymous Monk

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