如何在智能表单组件中使用react-hook-form验证自定义输入？

import React from 'react';
import { useForm, Controller } from 'react-hook-form';

const CustomInput = ({ value, onChange }) => (
  <input type="text" value={value} onChange={onChange} />
);

const App = () => {
  const { control, handleSubmit, formState: { errors } } = useForm();
  const onSubmit = (data) => {
    console.log(data);
  };

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <Controller
        control={control}
        name="customInput"
        rules={{
          required: 'This field is required',
          pattern: {
            value: /^[A-Za-z]+$/i,
            message: 'Only alphabets are allowed'
          }
        }}
        render={({ field }) => (
          <CustomInput
            value={field.value}
            onChange={field.onChange}
          />
        )}
      />
      {errors.customInput && <span>{errors.customInput.message}</span>}
      <button type="submit">Submit</button>
    </form>
  );
};

export default App;