From b56f09d2d9bd979cdf6e0a67ea63f69d474f2add Mon Sep 17 00:00:00 2001
From: jez <jez@isla>
Date: Mon, 13 Jul 2009 09:24:03 +0100
Subject: [PATCH] added NodeSetXPathFunction base class

---
 include/XPath/impl/xpath_function.hpp | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/include/XPath/impl/xpath_function.hpp b/include/XPath/impl/xpath_function.hpp
index f15b0877..1c890793 100644
--- a/include/XPath/impl/xpath_function.hpp
+++ b/include/XPath/impl/xpath_function.hpp
@@ -136,6 +136,26 @@ protected:
                                  const ExecutionContext<string_type, string_adaptor>& executionContext) const = 0;
 }; // class StringXPathFunction
 
+template<class string_type, class string_adaptor = Arabica::default_string_adaptor<string_type> >
+class NodeSetXPathFunction : public XPathFunction<string_type, string_adaptor>
+{
+public:
+  NodeSetXPathFunction(int minArgs, int maxArgs, const std::vector<XPathExpression<string_type, string_adaptor> >& args) :
+      XPathFunction(minArgs, maxArgs, args) { }
+
+  virtual ValueType type() const { return NODE_SET; }
+
+  virtual XPathValue_impl<string_type, string_adaptor>* evaluate(const DOM::Node<string_type, string_adaptor>& context,
+                                            const ExecutionContext<string_type, string_adaptor>& executionContext) const
+  {
+    return new NodeSetValue<string_type, string_adaptor>(doEvaluate(context, executionContext));
+  } // evaluate
+
+protected:
+  virtual NodeSet<string_type, string_adaptor> doEvaluate(const DOM::Node<string_type, string_adaptor>& context,
+                                                          const ExecutionContext<string_type, string_adaptor>& executionContext) const = 0;
+}; // class NodeSetXPathFunction
+
 namespace impl 
 {