Rewizja combinator.cs

1 file changed, 1 insertion

combinator.cs

			@@ -23,6 +23,7 @@ public class Program
23	23		};
24	24
25	25		Console.WriteLine("--- 构造解析器 ---");
	26	+	Func<string, string> parser = Combinator.Fix(grammarFactory);
26	27		string testInput = "AAAB";
27	28		Console.WriteLine($"\n--- 开始解析输入: \"{testInput}\" ---");
28	29

1 file changed, 49 insertions

combinator.cs(stworzono plik)

		@@ -0,0 +1,49 @@
1	+	using System;
2	+
3	+	public class Program
4	+	{
5	+	public static void Main()
6	+	{
7	+	Func<Func<string, string>, Func<string, string>> grammarFactory = (self) =>
8	+	{
9	+	return (input) =>
10	+	{
11	+	if (string.IsNullOrEmpty(input))
12	+	return "";
13	+
14	+	if (input.StartsWith("A"))
15	+	{
16	+	Console.WriteLine($"[逻辑层] 发现字符 'A'，吃掉它。剩余字符串: \"{input.Substring(1)}\" -> 呼叫 self 递归");
17	+	return self(input.Substring(1));
18	+	}
19	+
20	+	Console.WriteLine($"[逻辑层] 遇到非 'A' 字符 ('{input[0]}')，递归停止。");
21	+	return input;
22	+	};
23	+	};
24	+
25	+	Console.WriteLine("--- 构造解析器 ---");
26	+	string testInput = "AAAB";
27	+	Console.WriteLine($"\n--- 开始解析输入: \"{testInput}\" ---");
28	+
29	+	string remaining = parser(testInput);
30	+
31	+	Console.WriteLine($"\n--- 解析完成 ---");
32	+	Console.WriteLine($"原始输入: {testInput}");
33	+	Console.WriteLine($"剩余部分: {remaining}");
34	+	}
35	+	}
36	+
37	+
38	+	public static class Combinator
39	+	{
40	+	public static Func<T, R> Fix<T, R>(Func<Func<T, R>, Func<T, R>> f)
41	+	{
42	+	return input =>
43	+	{
44	+	Func<T, R> self = Fix(f);
45	+	Func<T, R> actualLogic = f(self);
46	+	return actualLogic(input);
47	+	};
48	+	}
49	+	}

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