MarkLogic 12 EA 1 Product Documentation

cts.elementWalk

cts.elementWalk(
   node as Node,
   element as xs.QName[],
   callback as function(NodeBuilder, node()) as xs.string?,
   builder as NodeBuilder
) as null

Summary

Returns a copy of the node, replacing any elements found with the specified expression.

Usage Notes

The arguments to the callback function provide context for the element match.

builder as NodeBuilder

An Node builder that is building the highlighted node copy. Whatever the callback adds to the builder will be added to the final copy.

node as element()

The matching element node.

The return from the callback function is an action that specifies what happens next:

"continue"

(default) Walk the next match. If there are no more matches, return all evaluation results.

"skip"

Skip walking any more matches and return all evaluation results.

"break"

Stop walking matches and return all evaluation results.

null

Continue with the previous action.

Example

//
//  Replace every 'name' element with the text "Mary"
//
var x = new NodeBuilder();
x.startElement("p");
x.addText("Dear ");
x.startElement("name"); x.endElement();
x.addText( ", thank you for your interest.");
x.endElement();
var result = new NodeBuilder();
cts.elementWalk(x.toNode(), xs.QName("name"),
  function(builder,node) {
    builder.addText("Mary")
  },
  result
);
result.toNode()
=>
<p>Dear Mary, thank you for your interest.</p>