MatchKitProject/IPatternExtensions.cs

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//=============================================================================
// System  : MatchKit
// File    : IPatternExtensions.cs
// Author  : Fabio Bussu  (matchkit@fabiobussu.it)
// Updated : 04/16/2013
// Note    : Copyright 2013, Fabio Bussu, All rights reserved
//
// This code is published under the Microsoft Public License (Ms-PL). A copy
// of the license should be distributed with the code.  It can also be found
// at the project website: http://matchkit.codeplex.com. This notice, the
// author's name, and all copyright notices must remain intact in all
// applications, documentation, and source files.
//
// Version     Date     Who  Comments
// ============================================================================
// 1.0.0.0  04/16/2013   FB  First draft
//=============================================================================
using System;
using System.Collections.Generic;
using System.Text;
using MatchKit.Patterns;

namespace MatchKit
{
	/// <summary>
	/// Extends String type and IPattern inherited types with shortcut and utility methods.
	/// </summary>
	/// <threadsafety static="true" />
	/// <conceptualLink target="0a06b2a9-5f58-409a-ba62-639cfd77bca7" />
	public static class IPatternExtensions
	{
		/// <summary>
		/// Assign the capture name to a pattern.
		/// </summary>
		/// <param name="pattern">Pattern to assign.</param>
		/// <param name="name">Capture name.</param>
		/// <returns>The pattern instance, input of the method.</returns>
		/// <remarks>
		/// This method is a shortcut that helps to assign a capture name in a functional-style way.
		/// </remarks>
		/// <example>
		///		<code lang="C#" source="..\MatchKit.Doc.Samples\PatternsSamples.cs" region="IPatternExtensions_CaptureAs" />
		/// </example>
		public static IPattern CaptureAs(
			#if EM
			this 
			#endif
			IPattern pattern, string name)
		{
			if (pattern == null)
				throw new ArgumentNullException("pattern", "pattern cannot be null");
			if (name == null)
				throw new ArgumentNullException("name", "name cannot be null");

			pattern.CaptureName = name;
			return pattern;
		}

		/// <summary>
		/// Wrap a pattern with a new instance of <see cref="T:MatchKit.Patterns.OptionalPattern"/>.