Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Data.SqlXml/System/Xml/Xsl/XsltOld/StringOutput.cs

@@ -0,0 +1,50 @@
+//------------------------------------------------------------------------------
+// <copyright file="StringOutput.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+// <owner current="true" primary="true">[....]</owner>
+//------------------------------------------------------------------------------
+
+namespace System.Xml.Xsl.XsltOld {
+    using Res = System.Xml.Utils.Res;
+    using System;
+    using System.Xml;
+    using System.Text;
+
+    internal class StringOutput : SequentialOutput {
+        private StringBuilder builder;
+        private string        result;
+
+        internal string Result {
+            get {
+                return this.result;
+            }
+        }
+
+        internal StringOutput(Processor processor)
+        : base(processor) {
+            this.builder  = new StringBuilder();
+        }
+
+        internal override void Write(char outputChar) {
+            this.builder.Append(outputChar);
+
+#if DEBUG
+            this.result = this.builder.ToString();
+#endif
+        }
+
+        internal override void Write(string outputText) {
+            this.builder.Append(outputText);
+
+#if DEBUG
+            this.result = this.builder.ToString();
+#endif
+        }
+
+        internal override void Close() {
+            this.result = this.builder.ToString();
+        }
+    }
+
+}