--- /dev/null
+/* UnparsedEntityUriFunction.java --
+ Copyright (C) 2004 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.xml.transform;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import javax.xml.namespace.QName;
+import javax.xml.xpath.XPathFunction;
+import javax.xml.xpath.XPathFunctionException;
+import org.w3c.dom.DocumentType;
+import org.w3c.dom.NamedNodeMap;
+import org.w3c.dom.Node;
+import org.w3c.dom.Notation;
+import gnu.xml.xpath.Expr;
+import gnu.xml.xpath.Function;
+
+/**
+ * The XSLT <code>unparsed-entity-uri()</code>function.
+ *
+ * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
+ */
+final class UnparsedEntityUriFunction
+ extends Expr
+ implements XPathFunction, Function
+{
+
+ List args;
+
+ public Object evaluate(List args)
+ throws XPathFunctionException
+ {
+ // Useless...
+ return Collections.EMPTY_SET;
+ }
+
+ public void setArguments(List args)
+ {
+ this.args = args;
+ }
+
+ public Object evaluate(Node context, int pos, int len)
+ {
+ int arity = args.size();
+ List values = new ArrayList(arity);
+ for (int i = 0; i < arity; i++)
+ {
+ Expr arg = (Expr) args.get(i);
+ values.add(arg.evaluate(context, pos, len));
+ }
+ String name = _string(context, values.get(0));
+ DocumentType doctype = context.getOwnerDocument().getDoctype();
+ if (doctype != null)
+ {
+ NamedNodeMap notations = doctype.getNotations();
+ Notation notation = (Notation) notations.getNamedItem(name);
+ if (notation != null)
+ {
+ String systemId = notation.getSystemId();
+ // XXX absolutize?
+ if (systemId != null)
+ {
+ return systemId;
+ }
+ }
+ }
+ return "";
+ }
+
+ public Expr clone(Object context)
+ {
+ UnparsedEntityUriFunction f = new UnparsedEntityUriFunction();
+ int len = args.size();
+ List args2 = new ArrayList(len);
+ for (int i = 0; i < len; i++)
+ {
+ args2.add(((Expr) args.get(i)).clone(context));
+ }
+ f.setArguments(args2);
+ return f;
+ }
+
+ public boolean references(QName var)
+ {
+ for (Iterator i = args.iterator(); i.hasNext(); )
+ {
+ if (((Expr) i.next()).references(var))
+ {
+ return true;
+ }
+ }
+ return false;
+ }
+
+}
+
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