+ Added StatementBuilder for use in places where we'll be doing a lot more conditional output construction.

OSCADSharp/OSCADSharp/OSCADSharp.csproj

@@ -43,6 +43,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Ids.cs" />
+    <Compile Include="Scripting\StatementBuilder.cs" />
     <Compile Include="Sizes.cs" />
     <Compile Include="Spatial\Bounds.cs" />
     <Compile Include="Spatial\Matrix.cs" />

OSCADSharp/OSCADSharp/Scripting/StatementBuilder.cs

@@ -0,0 +1,64 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OSCADSharp.Scripting
+{
+    /// <summary>
+    /// Extends the capabilities of StringBuilder with domain-specific behavior
+    /// </summary>
+    internal class StatementBuilder
+    {
+        private StringBuilder SB { get; set; } = new StringBuilder();
+
+        /// <summary>
+        /// Special append method for conditionally adding value-pairs
+        /// </summary>
+        /// <param name="name">The Name of the value-pair</param>
+        /// <param name="value">The value - if null this method does nothing</param>
+        /// <param name="prefixWithComma">(optional) Flag indicating whether a comma should be added before the value-pair</param>
+        public void AppendValuePairIfExists(string name, object value, bool prefixWithComma = false)
+        {
+            if (!String.IsNullOrEmpty(value?.ToString()))
+            {
+                if (prefixWithComma)
+                {
+                    SB.Append(", ");
+                }
+
+                SB.Append(name);
+                SB.Append("=");
+                SB.Append(value);
+            }
+        }
+
+        /// <summary>
+        /// Pass-through for StringBuilder.Append
+        /// </summary>
+        /// <param name="text"></param>
+        public void Append(string text)
+        {
+            SB.Append(text);
+        }
+
+        /// <summary>
+        /// Pass-through for StringBuilder.AppendLine
+        /// </summary>
+        /// <param name="text"></param>
+        public void AppendLine(string text)
+        {
+            SB.AppendLine(text);
+        }
+
+        /// <summary>
+        /// Gets this builder's full string
+        /// </summary>
+        /// <returns></returns>
+        public override string ToString()
+        {
+            return SB.ToString();
+        }
+    }
+}