using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
using UnityEngine;
using UnityEngine.UI;

public class CustomText : Text
{
    private readonly string mArkList = @"(\！|\？|\，|\。|\《|\》|\）|\：|\“|\‘|\、|\；|\+|\-)";

    public override void SetVerticesDirty()
    {
        var settings = GetGenerationSettings(rectTransform.rect.size);
        cachedTextGenerator.Populate(text, settings);

        StringBuilder stringBuilder = new StringBuilder(text);
        IList<UILineInfo> lineList = cachedTextGenerator.lines;
        int changeIndex = -1;
        for (int i = 1; i < lineList.Count; i++)
        {
            bool isMark = Regex.IsMatch(text[lineList[i].startCharIdx].ToString(), mArkList);

            if (isMark)
            {
                bool b = Regex.IsMatch(text[lineList[i].startCharIdx].ToString(), mArkList);
                if (b)
                {
                    changeIndex = lineList[i].startCharIdx - 1;
                    break;
                }
            }
        }

        if (changeIndex >= 0)
        {
            stringBuilder.Insert(changeIndex, '\n');
            text = stringBuilder.ToString();
        }

        base.SetVerticesDirty();
    }
}