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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/WithParam.java
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+/* WithParam.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.Collections;
+import javax.xml.namespace.QName;
+import javax.xml.transform.TransformerException;
+import org.w3c.dom.Document;
+import org.w3c.dom.DocumentFragment;
+import org.w3c.dom.Node;
+import gnu.xml.xpath.Expr;
+
+/**
+ * A specification for setting a variable or parameter during template
+ * processing with <code>apply-templates</code> or
+ * <code>call-template</code>.
+ *
+ * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
+ */
+final class WithParam
+{
+
+ final QName name;
+ final Expr select;
+ final TemplateNode content;
+
+ WithParam(QName name, Expr select)
+ {
+ this.name = name;
+ this.select = select;
+ content = null;
+ }
+
+ WithParam(QName name, TemplateNode content)
+ {
+ this.name = name;
+ this.content = content;
+ select = null;
+ }
+
+ Object getValue(Stylesheet stylesheet, QName mode,
+ Node context, int pos, int len)
+ throws TransformerException
+ {
+ if (select != null)
+ {
+ return select.evaluate(context, pos, len);
+ }
+ else if (content == null)
+ {
+ return "";
+ }
+ else
+ {
+ Document doc = (context instanceof Document) ? (Document) context :
+ context.getOwnerDocument();
+ DocumentFragment fragment = doc.createDocumentFragment();
+ content.apply(stylesheet, mode,
+ context, pos, len,
+ fragment, null);
+ return Collections.singleton(fragment);
+ }
+ }
+
+ WithParam clone(Stylesheet stylesheet)
+ {
+ if (content == null)
+ {
+ return new WithParam(name,
+ select.clone(stylesheet));
+ }
+ else
+ {
+ return new WithParam(name,
+ content.clone(stylesheet));
+ }
+ }
+
+ boolean references(QName var)
+ {
+ if (select != null && select.references(var))
+ {
+ return true;
+ }
+ if (content != null && content.references(var))
+ {
+ return true;
+ }
+ return false;
+ }
+
+}