8. The one or more machine-readable storage media of claim 7 , wherein one or more nodes that are identified for one or more operations in the edit script are identified by the edit script using XPath notation.
8. The one or more machine-readable storage media of claim 7 , wherein one or more nodes that are identified for one or more operations in the edit script are identified by the edit script using XPath notation. 9. The one or more machine-readable storage media of claim 8 , wherein the instructions include additional instructions which, when executed by one or more processors, further cause maintaining state for correlating an XPath locator referenced in the one or more operation events to one or more nodes identified by the one or more node events by maintaining a stack that stores an XPath of the latest node event.