package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?mi)[^\p{Cyrillic}\p{Latin}\p{Common}\w\s]+`)
var str = `Как защитить чат от длинных символов 123?
Всем здравствуйте, я хотел бы попросить у вас помощи. Дело в том, что существует так называемые символы, которые "ломают чат". Их длина очень большая и занимает пол чата, а то и весь. Мне очень нужно узнать, как защитить чат от этих символов. Вот пример символов: ̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿|̳̳̳̳̿̿̿̿l̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿|̳̳̳̳̿̿̿̿l̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̳̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊̿̿̿̿̊ é̴̢̢̢̧̡̧̡̢̡̧̡̡̡̨̛̛̛̥̟̹͖̲̙̪̙̠̙͍̹̦̦͇̣̯͓̯͈͔̺̺̯͚̱͔̻̖̰̖̙̟͇̘͍͉̱̟͓̞͓̘͓̟̳͕̲̞̫̱̖̗̘͇̯͎̝̹̥̲͍̥͉̳̠̥͕̗͔̟͖͇͖͓̭͖̜̱̠̳̺͚̖̿͒̾̑̌̆̀̎͋̀̈́̓̓̄̂́̃̀̈́̋̎̎͌̈́̓̃̈́̐̾̀̃̎́̈͛̽̔͊͐́͌̿̐̍̈̔̒̽̿͐̅́́̊̿̉̑̑͒̔́̓̄͊̀̋̓͛̇̍̇̈́͐͑̇̌̓̓͂̎̅͘̚̚̕͘̕̚͜͝͝͠͠͝͠͠͠ͅ.̨̡̢̢̧̧̨̨̧̢̧̛͙̟̮̩̥̻̬̱̝͔̝̼̗͖͎̪̲͓͔̝̤͖̫̳̟̪͎̳̭̞̝̣̗̝̱̱̮̠̙̟̙͖̤͔͇̩͍͙̰̭̝̫̜̺̝͓̻̱̤̲͉͙̦͕̰̣̬̣̺̖̘̘̮͈̭̫͍̻̰͍̼̤̙̩͖͇̒̌͆̔̄̔̓̏͛̉͛̈́̑̑̎̈́̑͂̾͑͆̑͂͂́̋͂̄̂̒̃̆̓̐̉̀̾̽͒̎̓͐͆͑̊̉͋͋̀̈́̓̎͛̌͌̂̽̔͆̍̊̓̽̂̆̀̿̀̋̍̃̔̉̇̎̋̈́͆̈́̚͘̚̕̚͘̕͘̚̚͘̚͝͝͠͠͝͝͝ͅͅͅ.̛̛̛̾͌͆̎̎̈̎͛͗͐̄̽̊̃̿͋͌͒̔͛̍̋̀̾̀̀̏̉͒̋́͑́͌͊̇̏̌̃̂̓̀͂̇̾͑̇̍̿̈́͂̽̈́͆͂̂̍́̂̂̾̔̍͋̓̕̚̚̕̕̕̕͝͠͠͝͝͝ Ỏ͖͈̞̩͎̻̫̫̜͉̠̫͕̭̭̫̫̹̗̹͈̼̠̖͍͚̥͈̮̼͕̠̤̯̻̥̬̗̼̳̤̳̬̪̹͚̞̼̠͕̼̠̦͚̫͔̯̹͉͉̘͎͕̼̣̝͙̱̟̹̩̟̳̦̭͉̮̖̭̣̣̞̙̗̜̺̭̻̥͚͙̝̦̲̱͉͖͉̰̦͎̫̣̼͎͍̠̮͓̹̹͉̤̰̗̙͕͇͔̱͕̭͈̳̗̭͔̘̖̺̮̜̠͖̘͓̳͕̟̠̱̫̤͓͔̘̰̲͙͍͇̙͎̣̼̗̖͙̯͉̠̟͈͍͕̪͓̝̩̦̖̹̼̠̘̮͚̟͉̺̜͍͓̯̳̱̻͕̣̳͉̻̭̭̱͍̪̩̭̺͕̺̼̥̪͖̦̟͎̻Ỏ͖͈̞̩͎̻̫̫̜͉̠̫͕̭̭̫̫̹̗̹͈̼̠̖͍͚̥͈̮̼͕̠̤̯̻̥̬̗̼̳̤̳̬̪̹͚̞̼̠͕̼̠̦͚̫͔̯̹͉͉̘͎͕̼̣̝͙̱̟̹̩̟̳̦̭͉̮̖̭̣̣̞̙̗̜̺̭̻̥͚͙̝̦̲̱͉͖͉̰̦͎̫̣̼͎͍̠̮͓̹̹͉̤̰̗̙͕͇͔̱͕̭͈̳̗̭͔̘̖̺̮̜̠͖̘͓̳͕̟̠̱̫̤͓͔̘̰̲͙͍͇̙͎̣̼̗̖͙̯͉̠̟͈͍͕̪͓̝̩̦̖̹̼̠̘̮͚̟͉̺̜͍͓̯̳̱̻͕̣̳͉̻̭̭̱͍̪̩̭̺͕̺̼̥̪͖̦̟͎̻Ỏ͖͈̞̩͎̻̫̫̜͉̠̫͕̭̭̫̫̹̗̹͈̼̠̖͍͚̥͈̮̼͕̠̤̯̻̥̬̗̼̳̤̳̬̪̹͚̞̼`
var substitution = ""
fmt.Println(re.ReplaceAllString(str, substitution))
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Golang, please visit: https://golang.org/pkg/regexp/