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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/xml/transform/CopyOfNode.java
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+/* CopyOfNode.java --
+ Copyright (C) 2004,2006 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 gnu.java.lang.CPStringBuilder;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import javax.xml.namespace.QName;
+import javax.xml.transform.TransformerException;
+import org.w3c.dom.Document;
+import org.w3c.dom.NamedNodeMap;
+import org.w3c.dom.Node;
+import org.w3c.dom.Text;
+import gnu.xml.xpath.Expr;
+
+/**
+ * A template node representing an XSLT <code>copy-of</code> instruction.
+ *
+ * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
+ */
+final class CopyOfNode
+ extends TemplateNode
+{
+
+ final Expr select;
+
+ CopyOfNode(Expr select)
+ {
+ this.select = select;
+ }
+
+ TemplateNode clone(Stylesheet stylesheet)
+ {
+ TemplateNode ret = new CopyOfNode(select.clone(stylesheet));
+ if (children != null)
+ ret.children = children.clone(stylesheet);
+ if (next != null)
+ ret.next = next.clone(stylesheet);
+ return ret;
+ }
+
+ void doApply(Stylesheet stylesheet, QName mode,
+ Node context, int pos, int len,
+ Node parent, Node nextSibling)
+ throws TransformerException
+ {
+ Object ret = select.evaluate(context, pos, len);
+ Document doc = (parent instanceof Document) ? (Document) parent :
+ parent.getOwnerDocument();
+ if (ret instanceof Collection)
+ {
+ Collection ns = (Collection) ret;
+ List list = new ArrayList(ns);
+ Collections.sort(list, documentOrderComparator);
+ for (Iterator i = list.iterator(); i.hasNext(); )
+ {
+ Node src = (Node) i.next();
+ short nodeType = src.getNodeType();
+ if (nodeType == Node.DOCUMENT_NODE)
+ {
+ // Use document element
+ src = ((Document) src).getDocumentElement();
+ if (src == null)
+ continue;
+ nodeType = Node.ELEMENT_NODE;
+ }
+ else if (nodeType == Node.ATTRIBUTE_NODE)
+ {
+ if (parent.getFirstChild() != null)
+ {
+ // Ignore attempt to add attribute after children
+ continue;
+ }
+ }
+ if (parent.getNodeType() == Node.ATTRIBUTE_NODE &&
+ nodeType != Node.TEXT_NODE &&
+ nodeType != Node.ENTITY_REFERENCE_NODE)
+ {
+ // Ignore
+ continue;
+ }
+ Node node = src.cloneNode(true);
+ node = doc.adoptNode(node);
+ if (nodeType == Node.ATTRIBUTE_NODE)
+ {
+ NamedNodeMap attrs = parent.getAttributes();
+ if (attrs != null)
+ attrs.setNamedItemNS(node);
+ }
+ else
+ {
+ if (nextSibling != null)
+ parent.insertBefore(node, nextSibling);
+ else
+ parent.appendChild(node);
+ }
+ }
+ }
+ else
+ {
+ String value = Expr._string(context, ret);
+ if (value != null && value.length() > 0)
+ {
+ Text textNode = doc.createTextNode(value);
+ if (nextSibling != null)
+ parent.insertBefore(textNode, nextSibling);
+ else
+ parent.appendChild(textNode);
+ }
+ }
+ // copy-of doesn't process children
+ if (next != null)
+ next.apply(stylesheet, mode,
+ context, pos, len,
+ parent, nextSibling);
+ }
+
+ public boolean references(QName var)
+ {
+ if (select != null && select.references(var))
+ return true;
+ return super.references(var);
+ }
+
+ public String toString()
+ {
+ CPStringBuilder buf = new CPStringBuilder("copy-of");
+ buf.append('[');
+ buf.append("select=");
+ buf.append(select);
+ buf.append(']');
+ return buf.toString();
+ }
+
+}