gistfile1.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using NMeCab;

namespace ConsoleApplication2
{
	class Program
	{
		static void Main(string[] args)
		{
			
			while (true)
			{
				Console.WriteLine("文を入力してください>>");
				Console.WriteLine(RussianReversalMachine.RussianReversal(Console.ReadLine()));

			}
		}
	}

	static class RussianReversalMachine
	{
		
		public static string RussianReversal(string source)
		{
			MeCabTagger tagger = MeCabTagger.Create();

			MeCabNode node = tagger.ParseToNode(source);
			string location = "";
			string person = "";
			string obj = "";
			string verb = "";
			string joshi = "";
			List<MeCabNode> nodes = new List<MeCabNode>();
			int cnt = 0;
			while (node != null)
			{
				if (cnt == 0)
				{
					node = node.Next;
					cnt++;
					continue;
				}
				nodes.Add(node);
				node = node.Next;
				cnt++;
			}

			List<MeCabNode> temp = new List<MeCabNode>();
			for (int i = 0; i < nodes.Count; i++)
			{
				MeCabNode n = nodes[i];
				if (i < nodes.Count - 1 && n.Surface == "で" && nodes[i + 1].Surface == "は")
				{

					temp.Add(n);
					temp.Add(nodes[i + 1]);
					i++;
					location = AddNodesToString(location, temp);
					temp.Clear();
					continue;
				}
				if (n.Surface == "が" || n.Surface == "は")
				{

					person = AddNodesToString(person, temp);
					joshi = n.Surface;
					temp.Clear();
					continue;
				}
				if (n.Surface == "を")
				{

					obj = AddNodesToString(obj, temp);
					person += n.Surface;
					temp.Clear();
					continue;
				}
				if (n.Feature.Split(',')[0] == "動詞" && n.Feature.Split(',')[5] == "基本形")
				{
					temp.Add(n);
					verb = AddNodesToString(verb, temp);
					temp.Clear();
					continue;
				}

				temp.Add(n);
			}
			obj += joshi;
			verb = AddNodesToString(verb, temp);
			return location + obj + person + verb;

		}

		public static string AddNodesToString(string target, List<MeCabNode> nodes)
		{
			string lastdata = target;
			foreach (MeCabNode node in nodes)
				lastdata += node.Surface;
			return lastdata;
		}

	}
}