tools/misc/GenerateDelegate.cs

   1 /**
   2  * Namespace: com.mastergaurav.utils
   3  * Class:     GenerateDelegate
   4  *
   5  * Author:  Gaurav Vaish
   6  * Maintainer: gvaish@iitk.ac.in
   7  * Contact: <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>
   8  * Implementation: yes
   9  * Status:  100%
  10  *
  11  * (C) Gaurav Vaish (2001)
  12  */
  13
  14 using System;
  15 using System.IO;
  16
  17 namespace com.mastergaurav.Utils
  18 {
  19         public class GenerateDelegate
  20         {
  21                 public static string TargetDirectory = String.Empty;
  22                 public static string NamespaceName   = String.Empty;
  23
  24                 public static readonly string PROLOGUE = "/**\n * Namespace: ";
  25                 public static readonly string DETAILS   = " *\n * Author: Gaurav Vaish\n" +
  26                                                           " * Maintainer: gvaish@iitk.ac.in\n" +
  27                                                           " * Contact:  <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>\n" +
  28                                                           " * Implementation: yes\n" +
  29                                                           " * Status: 100%\n" +
  30                                                           " *\n" +
  31                                                           " * (C) Gaurav Vaish (2002)\n" +
  32                                                           " */\n\n";
  33                 public static readonly string USING     = "using System;\n" +
  34                                                           "using System.Web;\n" +
  35                                                           "using System.Web.UI;\n\n";
  36
  37                 public static readonly string NAMESPACE = "namespace ";
  38
  39                 public static string AskForNamespace()
  40                 {
  41                         string nm = String.Empty;
  42                         System.Console.Write("Enter the name of the namespace: ");
  43                         nm = System.Console.ReadLine();
  44                         return nm;
  45                 }
  46
  47                 public static string AskForMore()
  48                 {
  49                         string del = String.Empty;
  50                         System.Console.Write("Enter the name of the delegate (end to stop): ");
  51                         del = System.Console.ReadLine();
  52                         if(del == String.Empty || del == "end")
  53                                 return String.Empty;
  54                         return del;
  55                 }
  56
  57                 public static void Generate(string delName)
  58                 {
  59                         string fileName = TargetDirectory + "\\" + delName + "EventHandler.cs";
  60                         System.Console.Write("File: ");//, fileName);
  61                         System.Console.Write(fileName);
  62                         System.Console.Write("\tGenerating");
  63
  64                         StreamWriter writer;
  65                         try
  66                         {
  67                                 Stream stream = new FileStream(fileName, FileMode.Truncate, FileAccess.Write);
  68                                 writer = new StreamWriter(stream);
  69                         } catch(FileNotFoundException)
  70                         {
  71                                 writer = File.CreateText(fileName);
  72                         }
  73                         if(writer == null)
  74                         {
  75                                 System.Console.WriteLine("Null writer...\n");
  76                                 return;
  77                         }
  78                         writer.Write(PROLOGUE);
  79                         writer.Write(NamespaceName + "\n");
  80                         writer.Write(DETAILS);
  81                         writer.Write(NAMESPACE);
  82                         writer.Write(NamespaceName + "\n");
  83                         writer.Write("{\n");
  84                         writer.Write("\tpublic delegate void ");
  85                         writer.Write(delName);
  86                         writer.Write("EventHandler(object sender, ");
  87                         writer.Write(delName);
  88                         writer.Write("EventArgs e);\n");
  89                         writer.Write("}");
  90
  91                         writer.Flush();
  92                         writer.Close();
  93
  94                         System.Console.WriteLine("\tGenerated\n");
  95                 }
  96
  97                 public static string GetTargetDir()
  98                 {
  99                         System.Console.Write("Enter target directory: ");
 100                         return System.Console.ReadLine();
 101                 }
 102
 103                 public static void Usage(bool wrong)
 104                 {
 105                         if(wrong)
 106                         {
 107                                 System.Console.WriteLine("Wrong # arguments.");
 108                         }
 109                         System.Console.WriteLine("Usage: GenerateDelegate [target-dir] [namespace] [delegate1 [delegate2 [...]]]");
 110                 }
 111
 112                 public static bool IsHelp(string arg)
 113                 {
 114                         return (arg == "-h" || arg == "--help");
 115                 }
 116
 117                 public static bool IsDirectory(string dirName)
 118                 {
 119                         FileAttributes attrs;
 120                         try
 121                         {
 122                                 attrs = File.GetAttributes(dirName);
 123                                 if( (attrs & FileAttributes.Directory) != FileAttributes.Directory)
 124                                 {
 125                                         Usage(true);
 126                                         return false;
 127                                 }
 128                         }catch(Exception e)
 129                         {
 130                                 System.Console.WriteLine("Exception: {0}", e.ToString());
 131                                 return false;
 132                         }
 133                         return true;
 134                 }
 135
 136                 public static void Main(string[] args)
 137                 {
 138                         if(args.Length == 1 && IsHelp(args[0]))
 139                         {
 140                                 Usage(false);
 141                                 return;
 142                         }
 143
 144                         if(args.Length == 0)
 145                         {
 146                                 TargetDirectory = GetTargetDir();
 147                                 while(TargetDirectory.EndsWith("\\"))
 148                                 {
 149                                         TargetDirectory = TargetDirectory.Substring(0, TargetDirectory.Length - 1);
 150                                 }
 151                         } else
 152                         {
 153                                 while(args[0].EndsWith("\\"))
 154                                 {
 155                                         args[0] = args[0].Substring(0, args[0].Length - 1);
 156                                 }
 157                                 TargetDirectory = args[0];
 158                         }
 159
 160                         if(!IsDirectory(TargetDirectory))
 161                                 return;
 162
 163                         if(args.Length > 1)
 164                         {
 165                                 NamespaceName = args[1];
 166                         } else
 167                         {
 168                                 NamespaceName = AskForNamespace();
 169                         }
 170
 171                         if(args.Length > 2)
 172                         {
 173                                 int i=0;
 174                                 foreach(string currArg in args)
 175                                 {
 176                                         if(i != 0)
 177                                         {
 178                                                 Generate(currArg);
 179                                         }
 180                                         i++;
 181                                 }
 182                         }
 183                         string delegateName = String.Empty;
 184                         while((delegateName = AskForMore()) != String.Empty)
 185                         {
 186                                 Generate(delegateName);
 187                         }
 188                 }
 189         }
 190 }