mcs/class/corlib/System.IO/TextReader.cs

   1 //\r
   2 // System.IO.TextReader\r
   3 //\r
   4 // Author: Marcin Szczepanski (marcins@zipworld.com.au)\r
   5 //\r
   6 // TODO: Implement the Thread Safe stuff\r
   7 //\r
   8 \r
   9 using System;\r
  10 \r
  11 namespace System.IO {\r
  12 \r
  13         [Serializable]\r
  14         public abstract class TextReader : MarshalByRefObject, IDisposable {\r
  15                 \r
  16                 protected TextReader() { }\r
  17                 \r
  18                 public static readonly TextReader Null;\r
  19                 \r
  20                 public virtual void Close()\r
  21                 { \r
  22                         Dispose(true);\r
  23                 }\r
  24 \r
  25                 void System.IDisposable.Dispose()\r
  26                 {\r
  27                         Dispose(true);\r
  28                 }\r
  29 \r
  30                 protected virtual void Dispose( bool disposing )\r
  31                 {\r
  32                         return;\r
  33                 }\r
  34                 \r
  35                 public virtual int Peek()\r
  36                 {\r
  37                         return -1;\r
  38                 }\r
  39                 \r
  40                 public virtual int Read()\r
  41                 {\r
  42                         return -1;\r
  43                 }\r
  44                 \r
  45                 public virtual int Read (char[] buffer, int index, int count)\r
  46                 {\r
  47                         int c, i;\r
  48                         \r
  49                         for (i = 0; i < count; i++) {\r
  50                                 if ((c = Read ()) == -1)\r
  51                                         return i;\r
  52                                 buffer [index + i] = (char)c;\r
  53                         }\r
  54                         \r
  55                         return i;\r
  56                 }\r
  57                 \r
  58                 public virtual int ReadBlock (char [] buffer, int index, int count)\r
  59                 {\r
  60                         int read_count = 0;\r
  61                         do {\r
  62                                 read_count = Read (buffer, index, count);\r
  63                                 index += read_count;\r
  64                                 count -= read_count;\r
  65                         } while (read_count != 0 && count > 0);\r
  66 \r
  67                         return read_count;\r
  68                 }\r
  69 \r
  70                 public virtual string ReadLine()\r
  71                 { \r
  72                         return String.Empty;\r
  73                 }\r
  74 \r
  75                 public virtual string ReadToEnd()\r
  76                 { \r
  77                         return String.Empty;\r
  78                 }\r
  79 \r
  80                 [MonoTODO]\r
  81                 public static TextReader Synchronized( TextReader reader )\r
  82                 {\r
  83                         // TODO: Implement\r
  84                         return Null;\r
  85                 }       \r
  86         }\r
  87 }\r