I turned to another interesting feature in working with regular expressions (with Unicode characters). If you need to find a symbol, the number of significant digits of which in hexadecimal form is greater than or equal to three, then these numbers must be framed in curly braces.

`Regex = "\\x{2014}",`

`Regex = "\\x{6C60}",`

Octal numbers have much the same behavior.

The complete example is here.