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package com.jclark.xsl.expr;
import com.jclark.xsl.om.*;
abstract class Relation {
abstract boolean relate(String s1, String s2);
abstract boolean relate(boolean b1, boolean b2);
abstract boolean relate(double d1, double d2);
boolean relate(NodeIterator iter1, NodeIterator iter2) throws XSLException {
if (!(iter2 instanceof CloneableNodeIterator))
iter2 = new CloneableNodeIteratorImpl(iter2);
for (;;) {
Node node1 = iter1.next();
if (node1 == null)
break;
String s1 = Converter.toString(node1);
NodeIterator tem = (NodeIterator)((CloneableNodeIterator)iter2).clone();
for (;;) {
Node node2 = tem.next();
if (node2 == null)
break;
if (relate(s1, Converter.toString(node2)))
return true;
}
}
return false;
}
boolean relate(NodeIterator iter, boolean b) throws XSLException {
return relate(iter.next() != null, b);
}
boolean relate(NodeIterator iter, double d) throws XSLException {
for (;;) {
Node node = iter.next();
if (node == null)
break;
if (relate(Converter.toNumber(Converter.toString(node)), d))
return true;
}
return false;
}
boolean relate(NodeIterator iter, String s) throws XSLException {
for (;;) {
Node node = iter.next();
if (node == null)
break;
if (relate(Converter.toString(node), s))
return true;
}
return false;
}
boolean relate(boolean b, NodeIterator iter) throws XSLException {
return relate(b, iter.next() != null);
}
boolean relate(double d, NodeIterator iter) throws XSLException {
for (;;) {
Node node = iter.next();
if (node == null)
break;
if (relate(d, Converter.toNumber(Converter.toString(node))))
return true;
}
return false;
}
boolean relate(String s, NodeIterator iter) throws XSLException {
for (;;) {
Node node = iter.next();
if (node == null)
break;
if (relate(s, Converter.toString(node)))
return true;
}
return false;
}
boolean relate(Variant obj1, Variant obj2) throws XSLException {
if (obj1.isNodeSet()) {
if (obj2.isNodeSet())
return relate(obj1.convertToNodeSet(),
obj2.convertToNodeSet());
if (obj2.isNumber())
return relate(obj1.convertToNodeSet(),
obj2.convertToNumber());
if (obj2.isBoolean())
return relate(obj1.convertToNodeSet(),
obj2.convertToBoolean());
return relate(obj1.convertToNodeSet(),
obj2.convertToString());
}
if (obj2.isNodeSet()) {
if (obj1.isNumber())
return relate(obj1.convertToNumber(),
obj2.convertToNodeSet());
if (obj1.isBoolean())
return relate(obj1.convertToBoolean(),
obj2.convertToNodeSet());
return relate(obj1.convertToString(),
obj2.convertToNodeSet());
}
return relateAtomic(obj1, obj2);
}
boolean relateAtomic(Variant obj1, Variant obj2) throws XSLException {
if (obj1.isBoolean() || obj2.isBoolean())
return relate(obj1.convertToBoolean(), obj2.convertToBoolean());
if (obj1.isNumber() || obj2.isNumber())
return relate(obj1.convertToNumber(), obj2.convertToNumber());
return relate(obj1.convertToString(), obj2.convertToString());
}
}
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