CODEWITHSUNDEEP
xpath
Dave
Dave

Reputation: 187

XPath to select all attributes and values

I'm working with some XML that keeps all its data in attributes. I'm needing to extract that for processing the data. So we have something like:

<data>
  <level1>
    <level2 att1="1">
      <level 3>
        <level 4 att2="a" att3="b" att4="c" />
      </level 3>
      <level 3>
        <level 4 att2="1" att3="2" att4="3" />
      </level 3>
    </level 2>
    <level 2 att1="2">

So i'm wanting all attributes from the level 4 entries and their values, but ONLY from level2 entries where att1 = 1. I'm new to XPath, so I haven't worked it out yet. So far, the best I've come up with is:

/data/level1/level2[@att1='1']/level3/level4[@*]

but that is returning empty data. Any help would be appreciated.

Upvotes: 3

Views: 2909

Answers (1)

zx485
zx485

Reputation: 29052

To get all the desired attribute values, you only have to make a little change to your XPath expression like this (remove the last predicate to directly access the attributes):

/data/level1/level2[@att1='1']/level3/level4/@*

Iterating over this expression's nodeset gives you all the desired values and, if wanted, their attribute's names.

Upvotes: 4

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