New feature suggestion for International Verison

As I am not from English speaking country,
I sometimes make mistakes typing in Non-Englishing Language while I am thinking I in Enligsh.

For example,
I think I am writing "library(ggplot2)" but "ㅣㅑㅠㄱㅁ교(ㅎ헤ㅣㅐㅅ2)".
And I figure at last that it's all written in Korean

So I wonder if it is possible when typing in console or source editor,
I get alarms outside the quotation mark when I am writting in, other than English.
I know variable names can be in local characters
but at least we can have options like "alarm for no Alphabet characters"