A lot of regexes doesn't work

[khoadng]

import 'package:flutter/material.dart';
import 'package:rich_text_controller/rich_text_controller.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: RichTextExample(),
    );
  }
}

class RichTextExample extends StatelessWidget {
  RichTextExample({super.key});
  final controller = RichTextController(
    targetMatches: [
      MatchTargetItem(
        style: TextStyle(color: Colors.blue, fontWeight: FontWeight.bold),
        regex: RegExp(r'#[a-zA-Z0-9_]+'), // Doesn't work
      ),
      MatchTargetItem(
        style: TextStyle(color: Colors.green),
        regex: RegExp(r'@[a-zA-Z0-9_]+'), // Doesn't work
      ),
      MatchTargetItem(
        style: TextStyle(color: Colors.red),
        regex: RegExp(
            r'(foo|bar)+:'), // Used to highlight right after ':' character is typed in version 1.x.x, now you need to type another character for it to highlight
      ),
    ],
    onMatch: (matches) {
      print('Matched: $matches');
    },
  );

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: TextField(
          controller: controller,
        ),
      ),
    );
  }
}