Test Unity script to handle clicks on specific words in UI-Text components

ClickWordInTextTest.cs

using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.EventSystems;
using UnityEngine.UI;

namespace DefaultNamespace {
    public class ClickWordInTextTest : MonoBehaviour, IPointerClickHandler{
        public Text TheTextComponent; // filled in the inspector or somewhere else

        public List<string> ClickableWords = new List<string>();
        public List<UnityEvent> EventHandlers = new List<UnityEvent>();

        private TextGenerator generator;
        private void Start() {
            if (TheTextComponent == null) TheTextComponent = GetComponent<Text>();
            if (TheTextComponent == null) {
                Debug.LogError("TheTextComponent was not specified");
                this.enabled = false;
                return;
            }
        }

        private Rect GetCharacterRect(int pos) {
            Vector2 upperLeft = new Vector2(generator.verts[pos * 4].position.x, generator.verts[pos*4 + 2].position.y);
            Vector2 bottomright = new Vector2(generator.verts[pos*4 + 2].position.x, generator.verts[pos * 4].position.y);

            Vector2 size = bottomright - upperLeft;
            return new Rect(upperLeft, size);
        }

        public void OnPointerClick(PointerEventData eventData) {
            var clickpos = TheTextComponent.transform.worldToLocalMatrix.MultiplyPoint(eventData.position);

            generator = TheTextComponent.cachedTextGenerator;

            for (int i = 0; i < ClickableWords.Count; i++) {
                if(i >= EventHandlers.Count) break;
                if(string.IsNullOrEmpty(ClickableWords[i]) || EventHandlers[i] == null) continue;
                if (! TheTextComponent.text.Contains(ClickableWords[i])) continue;

                for (int pos = TheTextComponent.text.IndexOf(ClickableWords[i]);
                    pos <= TheTextComponent.text.IndexOf(ClickableWords[i]) + ClickableWords.Count;
                    ++pos) {
                    var r = GetCharacterRect(pos);
                    if (r.Contains(clickpos)) { 
                        // click found:
                        Debug.Log("clicked word: " + ClickableWords[i]);
                        EventHandlers[i].Invoke();
                        
                        break;
                    }

                }

            }
        }
    }
}