Added support for setting input device instances for applications

src/dshell-nunit.vs2010/Deveel.Console/StringInputDevice.cs

@@ -0,0 +1,41 @@
+using System;
+using System.IO;
+
+namespace Deveel.Console {
+	public sealed class StringInputDevice : InputDevice {
+		private StringReader baseReader;
+
+		public StringInputDevice() {
+		}
+
+		public StringInputDevice(string s) {
+			baseReader = new StringReader(s);
+		}
+
+		public void SetInput(string s) {
+			if (baseReader != null) {
+				baseReader.Dispose();
+				baseReader = null;
+			}
+
+			baseReader = new StringReader(s);
+		}
+
+		public override int Read(char[] buffer, int index, int count) {
+			if (baseReader == null)
+				return 0;
+
+			return baseReader.Read(buffer, index, count);
+		}
+
+		protected override void Dispose(bool disposing) {
+			if (disposing) {
+				if (baseReader != null)
+					baseReader.Dispose();
+				baseReader = null;
+			}
+
+			base.Dispose(disposing);
+		}
+	}
+}

src/dshell-nunit.vs2010/dshell-nunit.vs2010.csproj

@@ -34,6 +34,7 @@
     <Reference Include="System" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Deveel.Console\StringInputDevice.cs" />
     <Compile Include="Deveel.Console\StringWriteEventArgs.cs" />
     <Compile Include="Deveel.Console\TestOutputDevice.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />

src/dshell/Deveel.Console/IApplicationContext.cs

@@ -44,6 +44,8 @@ public interface IApplicationContext : IExecutionContext {
 		bool IsRunning { get; }
 
 
+		void SetInputDevice(InputDevice device);
+
 		void SetOutDevice(OutputDevice device);
 
 		void SetErrorDevice(OutputDevice device);

src/dshell/Deveel.Console/ShellApplication.cs

@@ -170,6 +170,13 @@ public void SetPrompt(string text) {
 				(input as ConsoleInputDevice).Prompt = prompt;
 		}
 
+		public void SetInputDevice(InputDevice device) {
+			if (device == null) 
+				throw new ArgumentNullException("device");
+
+			input = device;
+		}
+
 		public void SetOutDevice(OutputDevice device) {
 			if (device == null)
 				throw new ArgumentNullException("device");