A user account is required in order to edit this wiki, but we've had to disable public user registrations due to spam.

To request an account, ask an autoconfirmed user on Chat (such as one of these permanent autoconfirmed members).

DOM XPath: Difference between revisions

From WHATWG Wiki
Jump to navigation Jump to search
m (update links)
No edit summary
 
(2 intermediate revisions by 2 users not shown)
Line 1: Line 1:
Web IDL definitions in https://dom.spec.whatwg.org/#xpath.
If someone ever decides to write down DOM XPath (i.e. a proper version of the [https://www.w3.org/TR/DOM-Level-3-XPath/xpath.html DOM3XPath note]), take this into account:
If someone ever decides to write down DOM XPath (i.e. a proper version of the [https://www.w3.org/TR/DOM-Level-3-XPath/xpath.html DOM3XPath note]), take this into account:


Line 6: Line 8:
* Simplifications: https://lists.w3.org/Archives/Public/public-webapps/2011AprJun/0310.html
* Simplifications: https://lists.w3.org/Archives/Public/public-webapps/2011AprJun/0310.html
* Exceptions: https://bugzilla.mozilla.org/show_bug.cgi?id=743888
* Exceptions: https://bugzilla.mozilla.org/show_bug.cgi?id=743888
== WebIDL interfaces ==
<pre class="idl">
[Exposed=Window]
interface XPathResult {
  const unsigned short      ANY_TYPE                      = 0;
  const unsigned short      NUMBER_TYPE                    = 1;
  const unsigned short      STRING_TYPE                    = 2;
  const unsigned short      BOOLEAN_TYPE                  = 3;
  const unsigned short      UNORDERED_NODE_ITERATOR_TYPE  = 4;
  const unsigned short      ORDERED_NODE_ITERATOR_TYPE    = 5;
  const unsigned short      UNORDERED_NODE_SNAPSHOT_TYPE  = 6;
  const unsigned short      ORDERED_NODE_SNAPSHOT_TYPE    = 7;
  const unsigned short      ANY_UNORDERED_NODE_TYPE        = 8;
  const unsigned short      FIRST_ORDERED_NODE_TYPE        = 9;
  readonly attribute unsigned short resultType;
  readonly attribute unrestricted double numberValue;
  // Maybe "DOMString?".
  readonly attribute DOMString stringValue;
  readonly attribute boolean booleanValue;
  readonly attribute Node? singleNodeValue;
  readonly attribute boolean          invalidIteratorState;
  readonly attribute unsigned long    snapshotLength;
  Node?              iterateNext();
  Node?              snapshotItem(unsigned long index);
};
[Exposed=Window]
interface XPathExpression {
  XPathResult evaluate(Node contextNode,
                      optional unsigned short type,
                      optional XPathResult? result);
};
callback interface XPathNSResolver {
  DOMString? lookupNamespaceURI(DOMString? prefix);
};
interface mixin XPathEvaluatorBase {
  XPathExpression    createExpression(DOMString expression,
                                      optional XPathNSResolver? resolver);
  XPathNSResolver    createNSResolver(Node nodeResolver);
  XPathResult        evaluate(DOMString expression,
                              Node contextNode,
                              optional XPathNSResolver? resolver,
                              optional unsigned short type,
                              optional XPathResult? result);
};
[Exposed=Window, Constructor]
interface XPathEvaluator {};
XPathEvaluator includes XPathEvaluatorBase;
Document includes XPathEvaluatorBase;
</pre>
Indeed, you can both construct this object and access its methods on Document. Isn't the world wonderful?


[[Category:Spec coordination]]
[[Category:Spec coordination]]

Latest revision as of 08:59, 30 August 2019

Web IDL definitions in https://dom.spec.whatwg.org/#xpath.

If someone ever decides to write down DOM XPath (i.e. a proper version of the DOM3XPath note), take this into account: