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[pf3gnuchains/gcc-fork.git] / libjava / classpath / gnu / xml / transform / NumberNode.java

diff --git a/libjava/classpath/gnu/xml/transform/NumberNode.java b/libjava/classpath/gnu/xml/transform/NumberNode.java
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+/* NumberNode.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 javax.xml.transform.TransformerException;
+import org.w3c.dom.Node;
+import gnu.xml.xpath.Expr;
+
+/**
+ * A template node representing the XSL <code>number</code> instruction
+ * with a <code>value</code> expression.
+ *
+ * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
+ */
+final class NumberNode
+  extends AbstractNumberNode
+{
+
+  final Expr value;
+
+  NumberNode(Expr value, TemplateNode format, String lang,
+             int letterValue, String groupingSeparator, int groupingSize)
+  {
+    super(format, lang, letterValue, groupingSeparator, groupingSize);
+    this.value = value;
+  }
+
+  TemplateNode clone(Stylesheet stylesheet)
+  {
+    TemplateNode ret = new NumberNode(value.clone(stylesheet),
+                                      format, lang, letterValue,
+                                      groupingSeparator, groupingSize);
+    if (children != null)
+      {
+        ret.children = children.clone(stylesheet);
+      }
+    if (next != null)
+      {
+        ret.next = next.clone(stylesheet);
+      }
+    return ret;
+  }
+
+  int[] compute(Stylesheet stylesheet, Node context, int pos, int len)
+    throws TransformerException
+  {
+    Object ret = value.evaluate(context, pos, len);
+    Double d = (ret instanceof Double) ? ((Double) ret) :
+      new Double(Expr._number(context, ret));
+    return new int[] { d.intValue() };
+  }
+  
+}