Russian alphabet includes the letter ё, which was undeservedly forgotten at beggining of computing.
ё
So, if i want to use a regexp with character diapaso
Is one, but not are beatifull decision: use [/а-ё/] instead of [/а-яё/]. This worked, but letter not in proper direction:
[/а-ё/]
[/а-яё/]
str = "верёвочка" str[/^[а-ё]+$/] #=> "верёвочка"