117 lines
4.1 KiB
C#
117 lines
4.1 KiB
C#
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//------------------------------------------------------------------------------
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// <copyright file="CopyAction.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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// <owner current="true" primary="true">[....]</owner>
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//------------------------------------------------------------------------------
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namespace System.Xml.Xsl.XsltOld {
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using Res = System.Xml.Utils.Res;
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using System;
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using System.Diagnostics;
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using System.Xml;
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using System.Xml.XPath;
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using MS.Internal.Xml.XPath;
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internal class CopyAction : ContainerAction {
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// Local execution states
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private const int CopyText = 4;
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private const int NamespaceCopy = 5;
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private const int ContentsCopy = 6;
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private const int ProcessChildren = 7;
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private const int ChildrenOnly = 8;
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private string useAttributeSets;
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private bool empty;
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internal override void Compile(Compiler compiler) {
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CompileAttributes(compiler);
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if (compiler.Recurse()) {
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CompileTemplate(compiler);
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compiler.ToParent();
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}
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if (this.containedActions == null)
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this.empty = true;
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}
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internal override bool CompileAttribute(Compiler compiler) {
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string name = compiler.Input.LocalName;
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string value = compiler.Input.Value;
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if (Ref.Equal(name, compiler.Atoms.UseAttributeSets)) {
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this.useAttributeSets = value;
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AddAction(compiler.CreateUseAttributeSetsAction());
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}
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else {
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return false;
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}
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return true;
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}
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internal override void Execute(Processor processor, ActionFrame frame) {
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Debug.Assert(processor != null && frame != null);
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while (processor.CanContinue) {
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switch (frame.State) {
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case Initialized:
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if (Processor.IsRoot(frame.Node)) {
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processor.PushActionFrame(frame);
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frame.State = ChildrenOnly;
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break;
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}
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if (processor.CopyBeginEvent(frame.Node, this.empty) == false) {
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// This event wasn't processed
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break;
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}
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frame.State = NamespaceCopy;
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continue;
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case NamespaceCopy:
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frame.State = ContentsCopy;
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if ( frame.Node.NodeType == XPathNodeType.Element ) {
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processor.PushActionFrame(CopyNamespacesAction.GetAction(), frame.NodeSet);
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break;
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}
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continue;
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case ContentsCopy:
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if (frame.Node.NodeType == XPathNodeType.Element && !this.empty) {
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//Debug.Assert(frame.Node.HasValue == false);
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processor.PushActionFrame(frame);
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frame.State = ProcessChildren;
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break;
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}
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else {
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if (processor.CopyTextEvent(frame.Node)) {
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frame.State = ProcessChildren;
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continue;
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}
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else {
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// This event wasn't processed
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break;
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}
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}
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case ProcessChildren:
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if (processor.CopyEndEvent(frame.Node)) {
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frame.Finished();
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}
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break;
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case ChildrenOnly:
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frame.Finished();
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break;
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default:
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Debug.Fail("Invalid CopyAction execution state");
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break;
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}
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break;
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}
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}
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}
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}
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