Extensions.cs at master ⋅ TurnerSoftware/RobotsExclusionTools

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TurnerSoftware.RobotsExclusionTools.Tokenization
{
	public static class Extensions
	{
		public static bool MoveTo(this IEnumerator<Token> tokenEnumerator, TokenType tokenType)
		{
			return MoveTo(tokenEnumerator, t => t.TokenType == tokenType, t => false);
		}

		public static bool MoveTo(this IEnumerator<Token> tokenEnumerator, TokenType tokenType, string tokenValue)
		{
			return MoveTo(tokenEnumerator, t => t.TokenType == tokenType && t.Value == tokenValue, t => false);
		}
		
		public static bool MoveTo(this IEnumerator<Token> tokenEnumerator, IEnumerable<TokenType> anyOfTheseTypes)
		{
			return MoveTo(tokenEnumerator, t => anyOfTheseTypes.Contains(t.TokenType), t => false);
		}

		public static bool StepOverTo(this IEnumerator<Token> tokenEnumerator, TokenType tokenType, TokenType steppingToken)
		{
			return MoveTo(
				tokenEnumerator,
				t => t.TokenType == tokenType,
				t => steppingToken != t.TokenType
			);
		}

		private static bool MoveTo(IEnumerator<Token> tokenEnumerator, Func<Token, bool> stopMovingWhen, Func<Token, bool> stopEarlyWhen)
		{
			while (tokenEnumerator.MoveNext())
			{
				if (stopMovingWhen(tokenEnumerator.Current))
				{
					return true;
				}

				if (stopEarlyWhen(tokenEnumerator.Current))
				{
					return false;
				}
			}

			return false;
		}
	}
}

Read our documentation on viewing source code .

1		using System;
2		using System.Collections.Generic;
3		using System.Linq;
4		using System.Text;
5
6		namespace TurnerSoftware.RobotsExclusionTools.Tokenization
7		{
8		public static class Extensions
9		{
10		public static bool MoveTo(this IEnumerator<Token> tokenEnumerator, TokenType tokenType)
11	1	{
12	1	return MoveTo(tokenEnumerator, t => t.TokenType == tokenType, t => false);
13	1	}
14
15		public static bool MoveTo(this IEnumerator<Token> tokenEnumerator, TokenType tokenType, string tokenValue)
16	1	{
17	1	return MoveTo(tokenEnumerator, t => t.TokenType == tokenType && t.Value == tokenValue, t => false);
18	1	}
19
20		public static bool MoveTo(this IEnumerator<Token> tokenEnumerator, IEnumerable<TokenType> anyOfTheseTypes)
21	1	{
22	1	return MoveTo(tokenEnumerator, t => anyOfTheseTypes.Contains(t.TokenType), t => false);
23	1	}
24
25		public static bool StepOverTo(this IEnumerator<Token> tokenEnumerator, TokenType tokenType, TokenType steppingToken)
26	1	{
27	1	return MoveTo(
28	1	tokenEnumerator,
29	1	t => t.TokenType == tokenType,
30	1	t => steppingToken != t.TokenType
31	1	);
32	1	}
33
34		private static bool MoveTo(IEnumerator<Token> tokenEnumerator, Func<Token, bool> stopMovingWhen, Func<Token, bool> stopEarlyWhen)
35	1	{
36	1	while (tokenEnumerator.MoveNext())
37	1	{
38	1	if (stopMovingWhen(tokenEnumerator.Current))
39	1	{
40	1	return true;
41		}
42
43	1	if (stopEarlyWhen(tokenEnumerator.Current))
44	1	{
45	1	return false;
46		}
47	1	}
48
49	1	return false;
50	1	}
51		}
52		}

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