为什么正则表达式会在golang中给我编译时出现紧急错误？

Question

I made a program for validate the names of the users but regexp will give me the compile time panic error why it so happen and how to resolve it below is the program I'm using :-

package main

import (
  "fmt"
  "regexp"
)

func main() {
  var arr [5]string
  arr[0] = "O’max"
  arr[1] = "O’sdf"
  arr[2] = "dsf’max"
  arr[3] = "dsfrewwerx"
  arr[4] = "ewrwerwerwerwr’max"
  var validName = regexp.MustCompile("^[a-zA-ZÀ-ž\x7f-\xff\u00c0-\u017e0-9-_&$.,'`()!/ ]*$")
  for i := 0; i < len(arr); i++ {
    if !validName.MatchString(arr[i]) {
        fmt.Println(arr[i])
    }
  }
}

Error

panic: regexp: Compile("^[a-zA-ZÀ-ž\u007f-\xffÀ-ž0-9-&$.,'()!/ ]*$"): error parsing regexp: invalid UTF-8:�À-ž0-9-&$.,'()!/ ]*$

Any body tell me How i will make a regrex for the validating the names of the users below is the playground link

Playground

Answer 1

use

^[\\p{L}0-9-_&$.,'\x60()!/ ]*$

As your regexp, where the "letters" including non ascii are the \p{L} class and the backtick is a \x60