http://www.perlmonks.org?node_id=412770


in reply to Re: right to left Tk text widget
in thread right to left Tk text widget

Isn't that a function of the OS, under linux Tk should check the LANG setting and then handle text based on those rules.
Windows should do the samething if you have the language pack installed and switch to a R to L language.
I only have us-eng installed on my linux box so I can't change languages to test.