1 files changed, 134 insertions, 0 deletions
diff --git a/mcs/class/System.XML/System.Xml/XmlCharacterData.cs b/mcs/class/System.XML/System.Xml/XmlCharacterData.cs
new file mode 100644
index 00000000000..a9fc7d267a6
--- /dev/null
+++ b/mcs/class/System.XML/System.Xml/XmlCharacterData.cs
@@ -0,0 +1,134 @@
+//
+// System.Xml.XmlCharacterData.cs
+//
+// Authors:
+//   Jason Diamond <jason@injektilo.org>
+//   Kral Ferch <kral_ferch@hotmail.com>
+//
+// (C) 2002 Jason Diamond, Kral Ferch
+//
+
+using System;
+
+namespace System.Xml
+{
+	public abstract class XmlCharacterData : XmlLinkedNode
+	{
+		private string data;
+
+		#region Constructor
+
+		protected internal XmlCharacterData (string data, XmlDocument doc)
+			: base (doc)
+		{
+			if (data == null)
+				data = String.Empty;
+
+			this.data = data;
+		}
+
+		#endregion
+		
+		#region Properties
+
+		public virtual string Data {
+			get { return data; }
+			
+			set {
+				OwnerDocument.onNodeChanging (this, this.ParentNode);
+
+				if (IsReadOnly)
+					throw new ArgumentException ("Node is read-only.");
+
+				data = value;
+
+				OwnerDocument.onNodeChanged (this, this.ParentNode);
+			}
+		}
+
+		public override string InnerText {
+			get { return data; }
+
+			set { Data = value; }	// invokes events
+		}
+
+		public virtual int Length {
+			get { return data != null ? data.Length : 0; }
+		}
+
+		public override string Value {
+			get { return data; }
+
+			set {
+				Data = value;
+			}
+		}
+
+		#endregion
+
+		#region Methods
+
+		public virtual void AppendData (string strData)
+		{
+			OwnerDocument.onNodeChanging (this, this.ParentNode);
+			data += strData;
+			OwnerDocument.onNodeChanged (this, this.ParentNode);
+		}
+
+		public virtual void DeleteData (int offset, int count)
+		{
+			OwnerDocument.onNodeChanging (this, this.ParentNode);
+
+			if (offset < 0)
+				throw new ArgumentOutOfRangeException ("offset", "Must be non-negative and must not be greater than the length of this instance.");
+
+			int newCount = data.Length - offset;
+
+			if ((offset + count) < data.Length)
+				newCount = count;
+
+			data = data.Remove (offset, newCount);
+			
+			OwnerDocument.onNodeChanged (this, this.ParentNode);
+		}
+
+		public virtual void InsertData (int offset, string strData)
+		{
+			OwnerDocument.onNodeChanging (this, this.ParentNode);
+
+			if ((offset < 0) || (offset > data.Length))
+				throw new ArgumentOutOfRangeException ("offset", "Must be non-negative and must not be greater than the length of this instance.");
+
+			data = data.Insert(offset, strData);
+			
+			OwnerDocument.onNodeChanged (this, this.ParentNode);
+		}
+
+		public virtual void ReplaceData (int offset, int count, string strData)
+		{
+			OwnerDocument.onNodeChanging (this, this.ParentNode);
+
+			if ((offset < 0) || (offset > data.Length))
+				throw new ArgumentOutOfRangeException ("offset", "Must be non-negative and must not be greater than the length of this instance.");
+
+			if (strData == null)
+				throw new ArgumentNullException ("strData", "Must be non-null.");
+
+			string newData = data.Substring (0, offset) + strData;
+			
+			if ((offset + count) < data.Length)
+				newData += data.Substring (offset + count);
+
+			data = newData;
+
+			OwnerDocument.onNodeChanged (this, this.ParentNode);
+		}
+
+		public virtual string Substring (int offset, int count)
+		{
+			return data.Substring (offset, count);
+		}
+
+		#endregion
+	}
+}