Scala XML fetch a value based on tag name

Question

Is it possible to get the value of a tag based on the tags name? For example., in the following xml,

<root>
  <a>
    <b>one</b>
    <c>two</c>
  </a>
  <a>
    <b>two</b>
    <c>one</c>
  </a>
</root>

And when I do the following:

val aNodes = root \\ "a"
aNodes.map(aNode => {
  aNode. ??? // How to I get the value of b and c by using its tag name?
})

yakshaver · Accepted Answer · 2014-06-06 14:14:22Z

2

You can get the text content of the children elements b and c by navigating to them using the \ path projection function and calling the NodeSeq.text method on the results:

(xml \\ "a") map (e => ((e \ "b") text, (e \ "c") text)) // List((one,two), (two,one))

This returns a Tuple2 containing the values for b and c for all a elements.

answered Jun 6, 2014 at 14:14

yakshaver

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