Powershell Commandlets。

powershell根据命令行中指定的属性进行解析，支持验证、参数集、流水线、错误报告、帮助，最好的是返回。net对象供其他命令行使用。

我发现了一些有用的入门链接:

快速入门教程 MSDN编程指南 MSDN上的Namespace引用

Genghis命令行解析器可能有点过时，但它的功能非常完整，对我来说工作得很好。

这是我基于Novell Options类编写的处理程序。

它针对的是执行while (input !="exit")样式循环的控制台应用程序，例如一个交互式控制台，例如FTP控制台。

使用示例:

static void Main(string[] args)
{
    // Setup
    CommandHandler handler = new CommandHandler();
    CommandOptions options = new CommandOptions();

    // Add some commands. Use the v syntax for passing arguments
    options.Add("show", handler.Show)
        .Add("connect", v => handler.Connect(v))
        .Add("dir", handler.Dir);

    // Read lines
    System.Console.Write(">");
    string input = System.Console.ReadLine();

    while (input != "quit" && input != "exit")
    {
        if (input == "cls" || input == "clear")
        {
            System.Console.Clear();
        }
        else
        {
            if (!string.IsNullOrEmpty(input))
            {
                if (options.Parse(input))
                {
                    System.Console.WriteLine(handler.OutputMessage);
                }
                else
                {
                    System.Console.WriteLine("I didn't understand that command");
                }

            }

        }

        System.Console.Write(">");
        input = System.Console.ReadLine();
    }
}

来源是:

/// <summary>
/// A class for parsing commands inside a tool. Based on Novell Options class (http://www.ndesk.org/Options).
/// </summary>
public class CommandOptions
{
    private Dictionary<string, Action<string[]>> _actions;
    private Dictionary<string, Action> _actionsNoParams;

    /// <summary>
    /// Initializes a new instance of the <see cref="CommandOptions"/> class.
    /// </summary>
    public CommandOptions()
    {
        _actions = new Dictionary<string, Action<string[]>>();
        _actionsNoParams = new Dictionary<string, Action>();
    }

    /// <summary>
    /// Adds a command option and an action to perform when the command is found.
    /// </summary>
    /// <param name="name">The name of the command.</param>
    /// <param name="action">An action delegate</param>
    /// <returns>The current CommandOptions instance.</returns>
    public CommandOptions Add(string name, Action action)
    {
        _actionsNoParams.Add(name, action);
        return this;
    }

    /// <summary>
    /// Adds a command option and an action (with parameter) to perform when the command is found.
    /// </summary>
    /// <param name="name">The name of the command.</param>
    /// <param name="action">An action delegate that has one parameter - string[] args.</param>
    /// <returns>The current CommandOptions instance.</returns>
    public CommandOptions Add(string name, Action<string[]> action)
    {
        _actions.Add(name, action);
        return this;
    }

    /// <summary>
    /// Parses the text command and calls any actions associated with the command.
    /// </summary>
    /// <param name="command">The text command, e.g "show databases"</param>
    public bool Parse(string command)
    {
        if (command.IndexOf(" ") == -1)
        {
            // No params
            foreach (string key in _actionsNoParams.Keys)
            {
                if (command == key)
                {
                    _actionsNoParams[key].Invoke();
                    return true;
                }
            }
        }
        else
        {
            // Params
            foreach (string key in _actions.Keys)
            {
                if (command.StartsWith(key) && command.Length > key.Length)
                {

                    string options = command.Substring(key.Length);
                    options = options.Trim();
                    string[] parts = options.Split(' ');
                    _actions[key].Invoke(parts);
                    return true;
                }
            }
        }

        return false;
    }
}

看起来每个人都有自己的宠物命令行解析器，我最好也添加我的:)。

http://bizark.codeplex.com/

这个库包含一个命令行解析器，它将使用命令行中的值初始化一个类。它有很多功能(我已经建立了很多年了)。

从文档中…

怪诞框架中的命令行解析具有以下关键特性:

Automatic initialization: Class properties are automatically set based on the command-line arguments. Default properties: Send in a value without specifying the property name. Value conversion: Uses the powerful ConvertEx class also included in BizArk to convert values to the proper type. Boolean flags: Flags can be specified by simply using the argument (ex, /b for true and /b- for false) or by adding the value true/false, yes/no, etc. Argument arrays: Simply add multiple values after the command-line name to set a property that is defined as an array. Ex, /x 1 2 3 will populate x with the array { 1, 2, 3 } (assuming x is defined as an array of integers). Command-line aliases: A property can support multiple command-line aliases for it. For example, Help uses the alias ?. Partial name recognition: You don’t need to spell out the full name or alias, just spell enough for the parser to disambiguate the property/alias from the others. Supports ClickOnce: Can initialize properties even when they are specified as the query string in a URL for ClickOnce deployed applications. The command-line initialization method will detect if it is running as ClickOnce or not so your code doesn’t need to change when using it. Automatically creates /? help: This includes nice formatting that takes into account the width of the console. Load/Save command-line arguments to a file: This is especially useful if you have multiple large, complex sets of command-line arguments that you want to run multiple times.

http://www.codeplex.com/commonlibrarynet上有一个命令行参数解析器

它可以使用 1. 属性 2. 显式的调用 3.单行多个参数或字符串数组

它可以处理以下事情:

-config:Qa -startdate:${today} -region:'New York' Settings01

它很容易使用。

我非常喜欢命令行解析器库(http://commandline.codeplex.com/)。它有一个非常简单和优雅的方式来通过属性设置参数:

class Options
{
    [Option("i", "input", Required = true, HelpText = "Input file to read.")]
    public string InputFile { get; set; }

    [Option(null, "length", HelpText = "The maximum number of bytes to process.")]
    public int MaximumLenght { get; set; }

    [Option("v", null, HelpText = "Print details during execution.")]
    public bool Verbose { get; set; }

    [HelpOption(HelpText = "Display this help screen.")]
    public string GetUsage()
    {
        var usage = new StringBuilder();
        usage.AppendLine("Quickstart Application 1.0");
        usage.AppendLine("Read user manual for usage instructions...");
        return usage.ToString();
    }
}