Backup/Wilco.SyntaxHighlighting/Engine/Scanner/ScannerBase.cs

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using System;
using System.Xml;

namespace Wilco.SyntaxHighlighting
{
	/// <summary>
	/// Provides an abstract base class for scanners.
	/// </summary>
	public abstract class ScannerBase : IScanner
	{
		private IScanner child;
		private ScannerCollection dependencies;
		private bool enabled;
		private string id;
		private TokenizerBase tokenizer;
		private OccurrenceCollection scannerResult;

		/// <summary>
		/// Gets or sets the child scanner.
		/// </summary>
		/// <remarks>
		/// The child scanner is part of the chain of responsibility. In case a scanner did not find occurrences of the node(s) it 
		/// represents, this scanner may pass the responsibility on to its child.
		/// </remarks>
		public IScanner Child
		{
			get
			{
				return this.child;
			}
			set
			{
				if (value != this.child)
				{
					this.child = value;
				}
			}
		}

		/// <summary>
		/// Gets a collection of dependant <see cref="Wilco.SyntaxHighlighting.IScanner"/> objects.
		/// </summary>
		public ScannerCollection Dependencies
		{
			get
			{
				return this.dependencies;
			}
		}

		/// <summary>
		/// Gets or sets whether the scanner is enabled or not.
		/// </summary>
		/// <remarks>
		/// An <see cref="Wilco.SyntaxHighlighting.IScanner"/> implementation might want to disable dependant scanners to make sure 
		/// the syntax highlighting will remain valid.
		/// </remarks>
		public bool Enabled
		{
			get