ParseTwine.cs

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class ParseTwine : MonoBehaviour
{
    public class Node
    {
        public string title;
        public string text;
    }

    public TextAsset text;

    public List<Node> nodes = new List<Node>();

    Node currentNode;

    void Start()
    {
        Parse(text.text);
    }

    void Parse(string text)
    {
        nodes.Clear();

        // 0 - searching for start, 1 - reading nodes
        int mode = 0;
        int phase = 0;
        string[] lines = text.Split('\n');

        Node node = null;

        foreach (string line in lines)
        {
            if (mode == 0)
            {
                if (line.IndexOf("Tiddler") != -1)
                {
                    mode = 1;
                }
            }
            else if (mode == 1)
            {
                if (line[0] == 'V')
                {
                    if (phase == 0)
                    {
                        node = new Node();
                        node.text = line.Substring(1, line.Length-1);
                        node.text = node.text.Replace("\\u000a", "\n");
                        phase = 1;
                    }
                    else if (phase == 1)
                    {
                        node.title = line.Substring(1, line.Length-1);
                        phase = 0;
                        nodes.Add(node);

                        Debug.Log("------------------------------------");
                        Debug.Log("Title: " + node.title);
                        Debug.Log("Text: " + node.text);
                    }
                }
            }
        }
    }
}