ase/cmd/com/Awk.cs

@@ -0,0 +1,420 @@
+/*
+ * $Id: Awk.cs,v 1.4 2007/09/30 15:12:20 bacon Exp $
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO;
+
+using COM = System.Runtime.InteropServices.ComTypes;
+
+namespace ase.com
+{
+	public class Awk : ASECOM.IAwkEvents
+	{
+		private ASECOM.Awk awk;
+
+		private int cookie = -1;
+		private COM.IConnectionPoint icp;
+
+		private Stream sourceInputStream = null;
+		private Stream sourceOutputStream = null;
+		private StreamReader sourceInputReader;
+		private StreamWriter sourceOutputWriter;
+
+		private Stream consoleInputStream = null;
+		private Stream consoleOutputStream = null;
+		private StreamReader consoleInputReader;
+		private StreamWriter consoleOutputWriter;
+
+		public delegate object FunctionHandler (object[] args);
+		private System.Collections.Hashtable funcTable;
+
+		char[] consoleInputBuffer = new char[1024];
+
+		public Awk()
+		{
+			this.funcTable = new System.Collections.Hashtable();
+
+			this.awk = new ASECOM.Awk();
+			this.awk.UseLongLong = true;
+			//this.awk.UseCrlf = true;
+			
+			COM.IConnectionPointContainer icpc = 
+				(COM.IConnectionPointContainer)awk;
+			Guid g = typeof(ASECOM.IAwkEvents).GUID;
+
+			try
+			{
+				icpc.FindConnectionPoint(ref g, out icp);
+				icp.Advise(this, out this.cookie);
+			}
+			catch (System.Runtime.InteropServices.COMException)
+			{
+				this.cookie = -1;
+				//System.Windows.Forms.MessageBox.Show(ex.Message);
+			}
+		}
+
+		/*~Awk()
+		{
+			  if (cookie != -1 && icp != null)
+			  {
+				   try
+				   {
+						icp.Unadvise(cookie);
+						cookie = -1;
+				   }
+				   catch (System.Runtime.InteropServices.COMException ex)
+				   {
+						System.Windows.Forms.MessageBox.Show(ex.Message);
+				   }	
+			  }
+		}*/
+
+		public int ErrorCode
+		{
+			get { return awk.ErrorCode; }
+		}
+
+		public int ErrorLine
+		{
+			get { return awk.ErrorLine; }
+		}
+
+		public string ErrorMessage
+		{
+			get { return awk.ErrorMessage; }
+		}
+
+		public bool ImplicitVariable
+		{
+			get { return awk.ImplicitVariable; }
+			set { awk.ImplicitVariable = value; }
+		}
+
+		public bool ExplicitVariable
+		{
+			get { return awk.ExplicitVariable; }
+			set { awk.ExplicitVariable = value; }
+		}
+
+		public bool ShiftOperators
+		{
+			get { return awk.ShiftOperators; }
+			set { awk.ShiftOperators = value; }
+		}
+
+		public bool IdivOperator
+		{
+			get { return awk.IdivOperator; }
+			set { awk.IdivOperator = value; }
+		}
+
+		public bool ConcatString
+		{
+			get { return awk.ConcatString; }
+			set { awk.ConcatString = value; }
+		}
+
+		public bool SupportExtio
+		{
+			get { return awk.SupportExtio; }
+			set { awk.SupportExtio = value; }
+		}
+
+		public bool SupportBlockless
+		{
+			get { return awk.SupportBlockless; }
+			set { awk.SupportBlockless = value; }
+		}
+
+		public bool BaseOne
+		{
+			get { return awk.BaseOne; }
+			set { awk.BaseOne = value; }
+		}
+
+		public bool StripSpaces
+		{
+			get { return awk.StripSpaces; }
+			set { awk.StripSpaces = value; }
+		}
+
+		public bool EnableNextofile
+		{
+			get { return awk.EnableNextofile; }
+			set { awk.EnableNextofile = value; }
+		}
+
+		public bool Usecrlf
+		{
+			get { return awk.UseCrlf; }
+			set { awk.UseCrlf = value; }
+		}
+
+		public bool EnableReset
+		{
+			get { return awk.EnableReset; }
+			set { awk.EnableReset = value; }
+		}
+
+		public bool AllowMapToVar
+		{
+			get { return awk.AllowMapToVar; }
+			set { awk.AllowMapToVar = value; }
+		}
+
+		public string EntryPoint
+		{
+			get { return awk.EntryPoint; }
+			set { awk.EntryPoint = value; }
+		}
+
+		public bool ArgumentsToEntryPoint
+		{
+			get { return awk.ArgumentsToEntryPoint; }
+			set { awk.ArgumentsToEntryPoint = value; }
+		}
+
+		public bool Debug
+		{
+			get { return awk.Debug; }
+			set { awk.Debug = value; }
+		}
+
+		/* this property doesn't need to be available to the public
+		 * as it can be always true in .NET environment. However, 
+		 * it is kept private here for reference */
+		private bool UseLongLong
+		{
+			get { return awk.UseLongLong; }
+			set { awk.UseLongLong = value; }
+		}
+
+		public int MaxDepthForBlockParse
+		{
+			get { return awk.MaxDepthForBlockParse; }
+			set { awk.MaxDepthForBlockParse = value; }
+		}
+
+		public int MaxDepthForBlockRun
+		{
+			get { return awk.MaxDepthForBlockRun; }
+			set { awk.MaxDepthForBlockRun = value; }
+		}
+
+		public int MaxDepthForExprParse
+		{
+			get { return awk.MaxDepthForExprParse; }
+			set { awk.MaxDepthForExprParse = value; }
+		}
+
+		public int MaxDepthForExprRun
+		{
+			get { return awk.MaxDepthForExprRun; }
+			set { awk.MaxDepthForExprRun = value; }
+		}
+
+		public int MaxDepthForRexBuild
+		{
+			get { return awk.MaxDepthForRexBuild; }
+			set { awk.MaxDepthForRexBuild = value; }
+		}
+
+		public int MaxDepthForRexMatch
+		{
+			get { return awk.MaxDepthForRexMatch; }
+			set { awk.MaxDepthForRexMatch = value; }
+		}
+
+		public virtual bool AddFunction(string name, int minArgs, int maxArgs, FunctionHandler handler)
+		{
+			if (funcTable.ContainsKey(name)) return false;
+			
+			funcTable.Add(name, handler);
+			if (!awk.AddFunction(name, minArgs, maxArgs))
+			{
+				funcTable.Remove(name);
+				return false;
+			}
+
+			return true;
+		}
+
+		public virtual bool DeleteFunction(string name)
+		{
+			if (!funcTable.ContainsKey(name)) return false;
+
+			if (awk.DeleteFunction(name))
+			{
+				funcTable.Remove(name);
+				return true;
+			}
+
+			return false;
+		}
+
+		public virtual bool Parse()
+		{
+			return awk.Parse();
+		}
+
+		public virtual bool Run ()
+		{	
+			return awk.Run(null);
+		}
+
+		public virtual bool Run(string[] args)
+		{
+			return awk.Run(args);
+		}
+
+		public Stream SourceInputStream
+		{
+			get { return this.sourceInputStream; }
+			set { this.sourceInputStream = value; }
+		}
+
+		public Stream SourceOutputStream
+		{
+			get { return this.sourceOutputStream; }
+			set { this.sourceOutputStream = value; }
+		}
+
+		public Stream ConsoleInputStream
+		{
+			get { return this.consoleInputStream; }
+			set { this.consoleInputStream = value; }
+		}
+
+		public Stream ConsoleOutputStream
+		{
+			get { return this.consoleOutputStream; }
+			set { this.consoleOutputStream = value; }
+		}
+		
+		public virtual int OpenSource(ASECOM.AwkSourceMode mode)
+		{
+			if (mode == ASECOM.AwkSourceMode.AWK_SOURCE_READ)
+			{
+				if (this.sourceInputStream == null) return 0;
+				this.sourceInputReader = new StreamReader (this.sourceInputStream);
+				return 1;
+			}
+			else if (mode == ASECOM.AwkSourceMode.AWK_SOURCE_WRITE)
+			{
+				if (this.sourceOutputStream == null) return 0;
+				this.sourceOutputWriter = new StreamWriter (this.sourceOutputStream);
+				return 1;
+			}
+
+			return -1;
+		}
+
+		public virtual int CloseSource(ASECOM.AwkSourceMode mode)
+		{
+			if (mode == ASECOM.AwkSourceMode.AWK_SOURCE_READ)
+			{
+				this.sourceInputReader.Close ();
+				return 0;
+			}
+			else if (mode == ASECOM.AwkSourceMode.AWK_SOURCE_WRITE)
+			{
+				this.sourceOutputWriter.Close ();
+				return 0;
+			}
+
+			return -1;
+		}
+
+		public virtual int ReadSource(ASECOM.Buffer buf)
+		{
+			buf.Value = this.sourceInputReader.ReadLine();
+			if (buf.Value == null) return 0;
+			return buf.Value.Length;
+		}
+
+		public virtual int WriteSource(ASECOM.Buffer buf)
+		{
+			this.sourceOutputWriter.Write(buf.Value);
+			return buf.Value.Length;
+		}
+
+		public virtual int OpenExtio(ASECOM.AwkExtio extio)
+		{
+			if (extio.Mode == ASECOM.AwkExtioMode.AWK_EXTIO_CONSOLE_READ)
+			{
+				if (this.consoleInputStream == null) return 0;
+				this.consoleInputReader = new StreamReader(this.consoleInputStream);
+				return 1;
+			}
+			else if (extio.Mode == ASECOM.AwkExtioMode.AWK_EXTIO_CONSOLE_WRITE)
+			{
+				if (this.consoleOutputStream == null) return 0;
+				this.consoleOutputWriter = new StreamWriter(this.consoleOutputStream);
+				return 1;
+			}
+
+			return -1;
+		}
+
+		public virtual int CloseExtio(ASECOM.AwkExtio extio)
+		{
+			if (extio.Mode == ASECOM.AwkExtioMode.AWK_EXTIO_CONSOLE_READ)
+			{
+				this.consoleInputReader.Close();
+				return 0;
+			}
+			else if (extio.Mode == ASECOM.AwkExtioMode.AWK_EXTIO_CONSOLE_WRITE)
+			{
+				this.consoleOutputWriter.Close();
+				return 0;
+			}
+
+			return -1;
+		}
+
+		public virtual int ReadExtio(ASECOM.AwkExtio extio, ASECOM.Buffer buf)
+		{
+			if (extio.Mode == ASECOM.AwkExtioMode.AWK_EXTIO_CONSOLE_READ)
+			{
+				int n = this.consoleInputReader.Read(consoleInputBuffer, 0, consoleInputBuffer.Length);
+				if (n == 0) return 0;
+				buf.Value = new string(consoleInputBuffer, 0, n);
+				return buf.Value.Length;
+			}
+
+			return -1;
+		}
+
+		public virtual int WriteExtio(ASECOM.AwkExtio extio, ASECOM.Buffer buf)
+		{
+			if (extio.Mode == ASECOM.AwkExtioMode.AWK_EXTIO_CONSOLE_WRITE)
+			{
+				this.consoleOutputWriter.Write(buf.Value);
+				return buf.Value.Length;
+			}
+
+			return -1;
+		}
+
+		public virtual int FlushExtio(ASECOM.AwkExtio extio)
+		{
+			return -1;
+		}
+
+		public virtual int NextExtio(ASECOM.AwkExtio extio)
+		{
+			return 1;
+		}
+		
+		public virtual object HandleFunction(string name, object argarray)
+		{
+			FunctionHandler handler = (FunctionHandler)funcTable[name];
+			return handler((object[])argarray);
+		}
+
+	}
+}