v1.0

include/xqilla/functions/FunctionString.hpp

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2001-2006
+ *     DecisionSoft Limited. All rights reserved.
+ * Copyright (c) 2004-2006
+ *     Progress Software Corporation. All rights reserved.
+ * Copyright (c) 2004-2006
+ *     Oracle. All rights reserved.
+ *
+ * See the file LICENSE for redistribution information.
+ *
+ * $Id: FunctionString.hpp,v 1.9 2006/11/01 16:37:13 jpcs Exp $
+ */
+
+/*
+
+  String function
+
+*/
+
+#ifndef _FUNCTIONSTRING_HPP
+#define _FUNCTIONSTRING_HPP
+
+#include <xqilla/framework/XQillaExport.hpp>
+
+#include <xqilla/ast/XQFunction.hpp>
+
+/** String operator function. */
+class XQILLA_API FunctionString : public XQFunction
+{
+public:
+  static const XMLCh name[];
+  static const unsigned int minArgs;
+  static const unsigned int maxArgs;
+
+  FunctionString(const VectorOfASTNodes &args, XPath2MemoryManager* memMgr);
+  
+  /**
+   * Called during static analysis to determine if statically correct.
+   * Performs constant folding if the function has an argument, and it
+   * is constant.
+   */
+  virtual ASTNode* staticResolution(StaticContext *context);
+  virtual ASTNode *staticTyping(StaticContext *context);
+
+  /** Returns the argument as a String **/
+  Sequence collapseTreeInternal(DynamicContext* context, int flags=0) const;
+
+  static Item::Ptr string(const Item::Ptr &item, DynamicContext *context);
+};
+
+#endif // _FUNCTIONSTRING_HPP