ase/cmd/com/StdAwk.cs

@@ -0,0 +1,60 @@
+/*
+ * $Id: StdAwk.cs,v 1.2 2007/09/18 14:30:41 bacon Exp $
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace ase.com
+{
+	public class StdAwk: Awk
+	{
+		public StdAwk(): base ()
+		{
+			AddFunction("sin", 1, 1, new FunctionHandler(handleSin));
+			AddFunction("cos", 1, 1, new FunctionHandler(handleCos));
+			AddFunction("tan", 1, 1, new FunctionHandler(handleTan));
+		}
+
+		protected virtual object handleSin(object[] args)
+		{
+			if (args[0] is System.Double)
+			{
+				return System.Math.Sin((double)args[0]);
+			}
+			else if (args[0] is System.Int32)
+			{
+				return System.Math.Sin((double)(int)args[0]);
+			}
+			else if (args[0] is System.Int64)
+			{
+				return System.Math.Sin((double)(long)args[0]);
+			}
+			else if (args[0] is string)
+			{
+				double t;
+
+				/* TODO: atoi */
+				try { t = System.Double.Parse((string)args[0]); }
+				catch (System.Exception) { t = 0; }
+
+				return System.Math.Sin(t);
+			}
+			else
+			{
+				return System.Math.Sin(0.0);
+			}
+		}
+
+		protected virtual object handleCos(object[] args)
+		{
+			return 0;
+		}
+
+		protected virtual object handleTan(object[] args)
+		{
+			return 0;
+		}		
+	}
+}