proper multi line formating

[YehudaK]

I already sent you the code (via assetstore.unity.com) of small component which formats text in correct multi line and also does that in Editor to speed up the execution time. However, it also supports formatting from code. I did it with regular Text component but I believe there will be no big difference for TextMashPro

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using ArabicSupport;
using System.Linq;

[RequireComponent(typeof(Text))]
[ExecuteInEditMode]
public class ArabicLineFixer : MonoBehaviour {
  [TextArea]
  public string ArabicText;

  public void SetArabicText(string text) {
    this.ArabicText = text;
    StartCoroutine(FixLineOrderCoroutine());
  }

  void OnValidate() {
    StartCoroutine(FixLineOrderCoroutine());
  }

  IEnumerator FixLineOrderCoroutine() {
    Text textComponent = this.GetComponent<Text>();
    List<string> resultText = new List<string>();
    RectTransform rt = textComponent.GetComponent<RectTransform>();
    List<string> paragraphList = ArabicText.Split('\n').ToList();

    foreach (string paragraph in paragraphList) {
      textComponent.text = ArabicFixer.Fix(paragraph, false, false);
      TextGenerationSettings tgs = textComponent.GetGenerationSettings(rt.rect.size);

      if (textComponent.text.IndexOf(' ') < 0) {
        resultText.Add(textComponent.text);

      } else {
        List<string> lineList = new List<string>();
        List<string> wordList = textComponent.text.Split(' ').ToList();
        string singleLine = "";

        while (wordList.Count > 0) {
          string singleWord = wordList[wordList.Count - 1];
          wordList.RemoveAt(wordList.Count - 1);

          if (textComponent.cachedTextGenerator.GetPreferredWidth(singleWord + ' ' + singleLine, tgs) > rt.rect.width) {
            lineList.Add(singleLine);
            singleLine = singleWord;
          } else {
            singleLine = (singleLine != "") ? singleWord + ' ' + singleLine : singleWord;
          }
        }

        if (singleLine.Length > 0)
          lineList.Add(singleLine);

        resultText.Add(String.Join(Environment.NewLine, lineList.ToArray()));
      }

      if (!Application.isEditor)
        yield return new WaitForEndOfFrame();
    }

    textComponent.text = String.Join(Environment.NewLine, resultText.ToArray());
  }
}