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package com.jclark.xsl.expr;
import com.jclark.xsl.om.*;
import java.util.StringTokenizer;
import java.util.Enumeration;
class ValueIdIterator implements NodeIterator {
private NodeIterator iter1;
private NodeIterator iter2;
ValueIdIterator(NodeIterator iter1) {
this.iter1 = iter1;
this.iter2 = new NullNodeIterator();
}
static class Iterator implements NodeIterator {
private Node node;
private Enumeration ids;
Iterator(Node node, String str) {
this.node = node;
ids = new StringTokenizer(str);
}
public Node next() {
while (ids.hasMoreElements()) {
Node tem = node.getElementWithId((String)ids.nextElement());
if (tem != null)
return tem;
}
return null;
}
}
public Node next() throws XSLException {
for (;;) {
Node node = iter2.next();
if (node != null)
return node;
node = iter1.next();
if (node == null)
break;
iter2 = new Iterator(node, Converter.toString(node));
}
return null;
}
}
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