HtmlCmdLine.cs :  » Network-Clients » iReaper » HtmlAgilityPack » C# / CSharp Open Source

// HtmlAgilityPack V1.0 - Simon Mourier <simon underscore mourier at hotmail dot com>
using System;

namespace HtmlAgilityPack{
  internal class HtmlCmdLine
  {
    static internal bool Help;

    static HtmlCmdLine()
    {
      Help = false;
      ParseArgs();
    }

    internal static string GetOption(string name, string def)
    {
      string p = def;
      string[] args = Environment.GetCommandLineArgs();
      for (int i=1;i<args.Length;i++)
      {
        GetStringArg(args[i], name, ref p);
      }
      return p;
    }

    internal static string GetOption(int index, string def)
    {
      string p = def;
      string[] args = Environment.GetCommandLineArgs();
      int j = 0;
      for (int i=1;i<args.Length;i++)
      {
        if (GetStringArg(args[i], ref p))
        {
          if (index==j)
            return p;
          else
            p = def;
          j++;
        }
      }
      return p;
    }

    internal static bool GetOption(string name, bool def)
    {
      bool p = def;
      string[] args = Environment.GetCommandLineArgs();
      for (int i=1;i<args.Length;i++)
      {
        GetBoolArg(args[i], name, ref p);
      }
      return p;
    }

    internal static int GetOption(string name, int def)
    {
      int p = def;
      string[] args = Environment.GetCommandLineArgs();
      for (int i=1;i<args.Length;i++)
      {
        GetIntArg(args[i], name, ref p);
      }
      return p;
    }

    private static void ParseArgs()
    {
      string[] args = Environment.GetCommandLineArgs();
      for (int i=1;i<args.Length;i++)
      {
        // help
        GetBoolArg(args[i], "?", ref Help);
        GetBoolArg(args[i], "h", ref Help);
        GetBoolArg(args[i], "help", ref Help);
      }
    }

    private static bool GetStringArg(string Arg, ref string ArgValue)
    {
      if (('/'==Arg[0]) || ('-'==Arg[0]))
        return false;
      ArgValue = Arg;
      return true;
    }

    private static void GetStringArg(string Arg, string Name, ref string ArgValue)
    {
      if (Arg.Length<(Name.Length+3)) // -name:x is 3 more than name
        return;
      if (('/'!=Arg[0]) && ('-'!=Arg[0]))  // not a param
        return;
      if (Arg.Substring(1, Name.Length).ToLower()==Name.ToLower())
        ArgValue = Arg.Substring(Name.Length+2, Arg.Length-Name.Length-2);
    }

    private static void GetBoolArg(string Arg, string Name, ref bool ArgValue)
    {
      if (Arg.Length<(Name.Length+1)) // -name is 1 more than name
        return;
      if (('/'!=Arg[0]) && ('-'!=Arg[0]))  // not a param
        return;
      if (Arg.Substring(1, Name.Length).ToLower()==Name.ToLower())
        ArgValue = true;
    }

    private static void GetIntArg(string Arg, string Name, ref int ArgValue)
    {
      if (Arg.Length<(Name.Length+3)) // -name:12 is 3 more than name
        return;
      if (('/'!=Arg[0]) && ('-'!=Arg[0]))  // not a param
        return;
      if (Arg.Substring(1, Name.Length).ToLower()==Name.ToLower())
      {
        try
        {
          ArgValue = Convert.ToInt32(Arg.Substring(Name.Length+2, Arg.Length-Name.Length-2));
        }
        catch
        {
        }
        
      }
    }
  }
}