CopyNodeSetAction.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / XmlUtils / System / Xml / Xsl / XsltOld / CopyNodeSetAction.cs / 1305376 / CopyNodeSetAction.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
//-----------------------------------------------------------------------------
 
namespace System.Xml.Xsl.XsltOld { 
    using Res = System.Xml.Utils.Res;
    using System; 
    using System.Diagnostics;
    using System.Xml;
    using System.Xml.XPath;
 
    internal sealed class CopyNodeSetAction : Action {
        private const int BeginEvent    = 2; 
        private const int Contents      = 3; 
        private const int Namespaces    = 4;
        private const int Attributes    = 5; 
        private const int Subtree       = 6;
        private const int EndEvent      = 7;

        private static CopyNodeSetAction s_Action = new CopyNodeSetAction(); 

        internal static CopyNodeSetAction GetAction() { 
            Debug.Assert(s_Action != null); 
            return s_Action;
        } 

        internal override void Execute(Processor processor, ActionFrame frame) {
            Debug.Assert(processor != null && frame != null);
            while (processor.CanContinue) { 
                switch (frame.State) {
                case Initialized: 
                    if (frame.NextNode(processor)) { 
                        frame.State = BeginEvent;
                        goto case BeginEvent; 
                    }
                    else {
                        frame.Finished();
                        break; 
                    }
                case BeginEvent: 
                    Debug.Assert(frame.State == BeginEvent); 

                    if (SendBeginEvent(processor, frame.Node) == false) { 
                        // This one wasn't output
                        break;
                    }
                    frame.State = Contents; 
                    continue;
 
                case Contents: 
                    Debug.Assert(frame.State == Contents);
                    XPathNodeType nodeType = frame.Node.NodeType; 

                    if (nodeType == XPathNodeType.Element || nodeType == XPathNodeType.Root) {
                        processor.PushActionFrame(CopyNamespacesAction.GetAction(), frame.NodeSet);
                        frame.State = Namespaces; 
                        break;
                    } 
 
                    if (SendTextEvent(processor, frame.Node) == false) {
                        // This one wasn't output 
                        break;
                    }
                    frame.State = EndEvent;
                    continue; 

                case Namespaces: 
                    processor.PushActionFrame(CopyAttributesAction.GetAction(), frame.NodeSet); 
                    frame.State = Attributes;
                    break; 

                case Attributes:
                    if (frame.Node.HasChildren) {
                        processor.PushActionFrame(GetAction(), frame.Node.SelectChildren(XPathNodeType.All)); 
                        frame.State = Subtree;
                        break; 
                    } 
                    frame.State = EndEvent;
                    goto case EndEvent; 

                case Subtree:
                    //frame.Node.MoveToParent();
                    frame.State = EndEvent; 
                    continue;
 
                case EndEvent: 
                    Debug.Assert(frame.State == EndEvent);
 
                    if (SendEndEvent(processor, frame.Node) == false) {
                        // This one wasn't output
                        break;
                    } 

                    frame.State = Initialized; 
                    continue; 
                }
 
                break;
            }
        }
 
        private static bool SendBeginEvent(Processor processor, XPathNavigator node) {
            return processor.CopyBeginEvent(node, node.IsEmptyElement); 
        } 

        private static bool SendTextEvent(Processor processor, XPathNavigator node) { 
            return processor.CopyTextEvent(node);
        }

        private static bool SendEndEvent(Processor processor, XPathNavigator node) { 
            return processor.CopyEndEvent(node);
        } 
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
//-----------------------------------------------------------------------------
 
namespace System.Xml.Xsl.XsltOld { 
    using Res = System.Xml.Utils.Res;
    using System; 
    using System.Diagnostics;
    using System.Xml;
    using System.Xml.XPath;
 
    internal sealed class CopyNodeSetAction : Action {
        private const int BeginEvent    = 2; 
        private const int Contents      = 3; 
        private const int Namespaces    = 4;
        private const int Attributes    = 5; 
        private const int Subtree       = 6;
        private const int EndEvent      = 7;

        private static CopyNodeSetAction s_Action = new CopyNodeSetAction(); 

        internal static CopyNodeSetAction GetAction() { 
            Debug.Assert(s_Action != null); 
            return s_Action;
        } 

        internal override void Execute(Processor processor, ActionFrame frame) {
            Debug.Assert(processor != null && frame != null);
            while (processor.CanContinue) { 
                switch (frame.State) {
                case Initialized: 
                    if (frame.NextNode(processor)) { 
                        frame.State = BeginEvent;
                        goto case BeginEvent; 
                    }
                    else {
                        frame.Finished();
                        break; 
                    }
                case BeginEvent: 
                    Debug.Assert(frame.State == BeginEvent); 

                    if (SendBeginEvent(processor, frame.Node) == false) { 
                        // This one wasn't output
                        break;
                    }
                    frame.State = Contents; 
                    continue;
 
                case Contents: 
                    Debug.Assert(frame.State == Contents);
                    XPathNodeType nodeType = frame.Node.NodeType; 

                    if (nodeType == XPathNodeType.Element || nodeType == XPathNodeType.Root) {
                        processor.PushActionFrame(CopyNamespacesAction.GetAction(), frame.NodeSet);
                        frame.State = Namespaces; 
                        break;
                    } 
 
                    if (SendTextEvent(processor, frame.Node) == false) {
                        // This one wasn't output 
                        break;
                    }
                    frame.State = EndEvent;
                    continue; 

                case Namespaces: 
                    processor.PushActionFrame(CopyAttributesAction.GetAction(), frame.NodeSet); 
                    frame.State = Attributes;
                    break; 

                case Attributes:
                    if (frame.Node.HasChildren) {
                        processor.PushActionFrame(GetAction(), frame.Node.SelectChildren(XPathNodeType.All)); 
                        frame.State = Subtree;
                        break; 
                    } 
                    frame.State = EndEvent;
                    goto case EndEvent; 

                case Subtree:
                    //frame.Node.MoveToParent();
                    frame.State = EndEvent; 
                    continue;
 
                case EndEvent: 
                    Debug.Assert(frame.State == EndEvent);
 
                    if (SendEndEvent(processor, frame.Node) == false) {
                        // This one wasn't output
                        break;
                    } 

                    frame.State = Initialized; 
                    continue; 
                }
 
                break;
            }
        }
 
        private static bool SendBeginEvent(Processor processor, XPathNavigator node) {
            return processor.CopyBeginEvent(node, node.IsEmptyElement); 
        } 

        private static bool SendTextEvent(Processor processor, XPathNavigator node) { 
            return processor.CopyTextEvent(node);
        }

        private static bool SendEndEvent(Processor processor, XPathNavigator node) { 
            return processor.CopyEndEvent(node);
        } 
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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CopyNodeSetAction.cs source code in C# .NET

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