Switched out the Sandcastle binaries for the source code.

1 files changed, 101 insertions, 0 deletions

diff --git a/tools/Sandcastle/Source/BuildAssembler/BuildComponents/ForEachComponent.cs b/tools/Sandcastle/Source/BuildAssembler/BuildComponents/ForEachComponent.cs
new file mode 100644
index 0000000..d073daf
--- /dev/null
+++ b/tools/Sandcastle/Source/BuildAssembler/BuildComponents/ForEachComponent.cs
@@ -0,0 +1,101 @@
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//
+using System;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Xml;
+using System.Xml.XPath;
+
+namespace Microsoft.Ddue.Tools {
+
+	public class ForEachComponent : BuildComponent {
+
+		public ForEachComponent (BuildAssembler assembler, XPathNavigator configuration) : base(assembler, configuration) {
+
+            // set up the context
+            XPathNodeIterator context_nodes = configuration.Select("context");
+            foreach (XPathNavigator context_node in context_nodes)
+            {
+                string prefix = context_node.GetAttribute("prefix", String.Empty);
+                string name = context_node.GetAttribute("name", String.Empty);
+                context.AddNamespace(prefix, name);
+            }
+
+			// load the expression format
+			XPathNavigator variable_node = configuration.SelectSingleNode("variable");
+			if (variable_node == null) throw new ConfigurationErrorsException("When instantiating a ForEach component, you must specify a variable using the <variable> element.");
+			string xpath_format = variable_node.GetAttribute("expression", String.Empty);
+			if ((xpath_format == null) || (xpath_format.Length == 0)) throw new ConfigurationErrorsException("When instantiating a ForEach component, you must specify a variable expression using the expression attribute");
+			xpath = XPathExpression.Compile(xpath_format);
+
+			// load the subcomponents
+			WriteMessage(MessageLevel.Info, "Loading subcomponents.");
+			XPathNavigator components_node = configuration.SelectSingleNode("components");
+			if (components_node == null) throw new ConfigurationErrorsException("When instantiating a ForEach component, you must specify subcomponents using the <components> element.");
+			
+			components = BuildAssembler.LoadComponents(components_node);
+
+			WriteMessage(MessageLevel.Info, String.Format("Loaded {0} subcomponents.", components.Count));
+
+		}
+
+		// the format string for the variable expression
+		private XPathExpression xpath;
+
+		// the xpath context
+		private CustomContext context = new CustomContext();
+
+		// the subcomponents
+		private ICollection<BuildComponent> components;
+
+		// the work of the component
+
+		public override void Apply (XmlDocument document, string key) {
+
+			// adjust the context
+			context["key"] = key;
+
+			// evaluate the condition
+			XPathExpression xpath_local = xpath.Clone();
+			xpath_local.SetContext(context);
+            
+			Object result = document.CreateNavigator().Evaluate(xpath_local);
+           
+			// try to intrepret the result as a node set
+			XPathNodeIterator result_node_iterator = result as XPathNodeIterator;
+
+			if (result_node_iterator != null) {
+                XPathNavigator[] result_nodes = BuildComponentUtilities.ConvertNodeIteratorToArray(result_node_iterator);
+				//Console.WriteLine("{0} node-set result", result_nodes.Length);
+				// if it is, apply the child components to each node value
+				foreach (XPathNavigator result_node in result_nodes) {
+                    // Console.WriteLine(result_node.Value);
+					ApplyComponents(document, result_node.Value);
+				}
+			} else {
+				//Console.WriteLine("non-node-set result");
+				// if it isn't, apply the child components to the string value of the result
+				ApplyComponents(document, result.ToString());
+
+			}
+
+
+		}
+
+		private void ApplyComponents (XmlDocument document, string key) {
+			foreach (BuildComponent component in components) {
+				component.Apply(document, key);
+			}
+		}
+
+
+        public override void Dispose () {
+            foreach (BuildComponent component in components) {
+                component.Dispose();
+            }
+            base.Dispose();
+        }
+		
+	}
+
+}
\ No newline at end of file