CODEWITHSUNDEEP
xmlxsdxsd-1.1
Christian Kruetzfeldt
Christian Kruetzfeldt

Reputation: 53

XSD 1.1 assert attribute must be present in document

Using XSD 1.1 is it possible to assert that an attribute exists somewhere else.

Example: 

<root>
  <someelement>
    <lookup name="test"/>
    <bla>
      <lookup name="tbl2"/>
      <morebla>
        <evenmore>
          <lookup name="tbl2"/>
        </evenmore>
      </morebla>
    </bla>
  </someelement>
  <table name="test">
    ...
  </table>
  <table name="tbl2">
    ...
  </table>
</root>

How would I assert that the element lookup has a name that is used in an table element?

The assert would need to be on the root element since it's not possible to assert up the element tree, but how would I assert on every lookup element regardless of where it is in the document structure?

Upvotes: 0

Views: 345

Answers (1)

sergioFC
sergioFC

Reputation: 6016

Have in mind that in XPath 2.0 comparing $s1 = $sequence2 returns true if and only if $s1 (or any of its elements if it is a sequence) exists in $sequence2. So you can use this simple XPath test for your assert:

every $lookupName in descendant-or-self::lookup/@name satisfies $lookupName = descendant-or-self::table/@name

Upvotes: 1

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