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A JavaScript Shell

, 18 Nov 2010 CPOL
Bases to create your own JavaScript shell for your application
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Scaredfinger.JSShell;
using System.IO;
using System.ComponentModel;
using System.Reflection;

namespace SampleShell
{
  public class SampleShell : Shell
  {
    public TextWriter Output
    {
      get;
      set;
    }

    public SampleShell()
      : this(Console.Out)
    {
    }

    public SampleShell(TextWriter output)
    {
      Output = output;
    }

    [ShellOperation]
    [Description("Shows this help screen")]
    public void Help()
    {
      foreach (var method in GetType().GetMethods().Where(x => x.GetCustomAttributes(typeof(ShellOperationAttribute), false).Any()))
      {
        var attr = method.GetCustomAttributes(typeof(DescriptionAttribute), false).FirstOrDefault() as DescriptionAttribute;
        
        var parameters = string.Join(",", 
          (
            from p in method.GetParameters()
            select string.Format("{0} {1}", p.ParameterType.Name, p.Name)
          ).ToArray()
        ) ;

        var text = string.Format("\t{0} {1}({2}):\t{3}", method.ReturnType.Name, method.Name, parameters,
          attr == null? "" : attr.Description);

        Print(text);
      }
    }

    [ShellOperation]
    [Description("Prints a text")]
    public void Print(string text)
    {
      Output.WriteLine(text);
    }

    [ShellOperation]
    [Description("Closes this shell")]
    public void Exit()
    {
      CloseShell();
    }
  }
}

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Erich Ledesma
Architect SunHotels
Spain Spain
I Received a Bachelor's Degree in Computer Science at the Mathematics and Computer Science Faculty, University of Havana, Cuba.

I mainly work in web applications using C# and some Javascript. Some very few times do some Java.

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