mcs/tools/misc/GenerateDelegate.cs

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