docs/HtmlAgilityPack/HtmlCmdLine.cs

   1 // HtmlAgilityPack V1.0 - Simon Mourier <simon underscore mourier at hotmail dot com>
   2 using System;
   3
   4 namespace HtmlAgilityPack
   5 {
   6     internal class HtmlCmdLine
   7     {
   8         #region Static Members
   9
  10         internal static bool Help;
  11
  12         #endregion
  13
  14         #region Constructors
  15
  16         static HtmlCmdLine()
  17         {
  18             Help = false;
  19             ParseArgs();
  20         }
  21
  22         #endregion
  23
  24         #region Internal Methods
  25
  26         internal static string GetOption(string name, string def)
  27         {
  28             string p = def;
  29             string[] args = Environment.GetCommandLineArgs();
  30             for (int i = 1; i < args.Length; i++)
  31             {
  32                 GetStringArg(args[i], name, ref p);
  33             }
  34             return p;
  35         }
  36
  37         internal static string GetOption(int index, string def)
  38         {
  39             string p = def;
  40             string[] args = Environment.GetCommandLineArgs();
  41             int j = 0;
  42             for (int i = 1; i < args.Length; i++)
  43             {
  44                 if (GetStringArg(args[i], ref p))
  45                 {
  46                     if (index == j)
  47                         return p;
  48                     else
  49                         p = def;
  50                     j++;
  51                 }
  52             }
  53             return p;
  54         }
  55
  56         internal static bool GetOption(string name, bool def)
  57         {
  58             bool p = def;
  59             string[] args = Environment.GetCommandLineArgs();
  60             for (int i = 1; i < args.Length; i++)
  61             {
  62                 GetBoolArg(args[i], name, ref p);
  63             }
  64             return p;
  65         }
  66
  67         internal static int GetOption(string name, int def)
  68         {
  69             int p = def;
  70             string[] args = Environment.GetCommandLineArgs();
  71             for (int i = 1; i < args.Length; i++)
  72             {
  73                 GetIntArg(args[i], name, ref p);
  74             }
  75             return p;
  76         }
  77
  78         #endregion
  79
  80         #region Private Methods
  81
  82         private static void GetBoolArg(string Arg, string Name, ref bool ArgValue)
  83         {
  84             if (Arg.Length < (Name.Length + 1)) // -name is 1 more than name
  85                 return;
  86             if (('/' != Arg[0]) && ('-' != Arg[0])) // not a param
  87                 return;
  88             if (Arg.Substring(1, Name.Length).ToLower() == Name.ToLower())
  89                 ArgValue = true;
  90         }
  91
  92         private static void GetIntArg(string Arg, string Name, ref int ArgValue)
  93         {
  94             if (Arg.Length < (Name.Length + 3)) // -name:12 is 3 more than name
  95                 return;
  96             if (('/' != Arg[0]) && ('-' != Arg[0])) // not a param
  97                 return;
  98             if (Arg.Substring(1, Name.Length).ToLower() == Name.ToLower())
  99             {
 100                 try
 101                 {
 102                     ArgValue = Convert.ToInt32(Arg.Substring(Name.Length + 2, Arg.Length - Name.Length - 2));
 103                 }
 104                 catch
 105                 {
 106                 }
 107             }
 108         }
 109
 110         private static bool GetStringArg(string Arg, ref string ArgValue)
 111         {
 112             if (('/' == Arg[0]) || ('-' == Arg[0]))
 113                 return false;
 114             ArgValue = Arg;
 115             return true;
 116         }
 117
 118         private static void GetStringArg(string Arg, string Name, ref string ArgValue)
 119         {
 120             if (Arg.Length < (Name.Length + 3)) // -name:x is 3 more than name
 121                 return;
 122             if (('/' != Arg[0]) && ('-' != Arg[0])) // not a param
 123                 return;
 124             if (Arg.Substring(1, Name.Length).ToLower() == Name.ToLower())
 125                 ArgValue = Arg.Substring(Name.Length + 2, Arg.Length - Name.Length - 2);
 126         }
 127
 128         private static void ParseArgs()
 129         {
 130             string[] args = Environment.GetCommandLineArgs();
 131             for (int i = 1; i < args.Length; i++)
 132             {
 133                 // help
 134                 GetBoolArg(args[i], "?", ref Help);
 135                 GetBoolArg(args[i], "h", ref Help);
 136                 GetBoolArg(args[i], "help", ref Help);
 137             }
 138         }
 139
 140         #endregion
 141     }
 142 }