mcs/class/System.Web/System.Web.Utils/FilePathParser.cs

   1 /**\r
   2  * Namespace: System.Web.Utils\r
   3  * Class:     FilePathParser\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:  ??%\r
  10  *\r
  11  * (C) Gaurav Vaish (2001)\r
  12  */\r
  13 \r
  14 namespace System.Web.Utils\r
  15 {\r
  16         internal class FilePathParser\r
  17         {\r
  18                 private static char[] pathSeparators = {\r
  19                         Path.DirectorySeparatorChar,\r
  20                         Path.AltDirectorySeparatorChar\r
  21                 };\r
  22                 \r
  23                 private string dirName;\r
  24                 private string fileName;\r
  25                 private string shortDirName;\r
  26                 private string shortFileName;\r
  27                 \r
  28                 private bool   exists;\r
  29                 \r
  30                 public FilePathParser(string path, bool isFile, bool getShortNames)\r
  31                 {\r
  32                         path = path.Trim();\r
  33                         if(Path.GetPathRoot(path).Length < path.Length)\r
  34                         {\r
  35                                 path = path.TrimEnd(pathSeparators);\r
  36                         }\r
  37                         if(!isFile)\r
  38                         {\r
  39                                 dirName = GetBaseDirOrRoot(path);\r
  40                         } else\r
  41                         {\r
  42                                 dirName = path;\r
  43                         }\r
  44                         if(getShortNames)\r
  45                         {\r
  46                                 if(!Directory.Exists(dirName))\r
  47                                 {\r
  48                                         dirName = null;\r
  49                                         return;\r
  50                                 }\r
  51                                 shortDirName = GetShortPathName(dirName);\r
  52                                 if(shortDirName==null)\r
  53                                 {\r
  54                                         dirName = null;\r
  55                                         return;\r
  56                                 }\r
  57                                 if(shortDirName == dirName)\r
  58                                 {\r
  59                                         shortDirName = null;\r
  60                                 } else\r
  61                                 {\r
  62                                         throw new NotImplementedException();\r
  63                                 }\r
  64                         }\r
  65                 }\r
  66                 \r
  67                 public static string GetBaseDirOrRoot(string file)\r
  68                 {\r
  69                         string bDir = Path.GetDirectoryName(file);\r
  70                         return ( bDir!=null ? bDir : GetPathRoot(file));\r
  71                 }\r
  72                 \r
  73                 public static string GetShortPathName(string path)\r
  74                 {\r
  75                         //TODO: Native calls required, it's in kernel32.dll for windows\r
  76                         throw new NotImplementedException();\r
  77                 }\r
  78         }\r
  79 }\r