> Date: Tue, 29 Jan 2019 13:50:31 +0100 > From: Egmont Koblinger via Unicode <[email protected]> > > [1] https://terminal-wg.pages.freedesktop.org/bidi/
Interesting document, thanks for writing it. My personal experience with bringing BiDi to Emacs led me to a firm conclusion that BiDi support by terminal emulators cannot be relied on by sophisticated text editing and display applications that are BiDi-aware. The terminal emulator can never be smart enough to do what the editing needs require, so the application eventually ends up jumping through hoops in order to trick the terminal into doing TRT. It is easier to tell users to disable BiDi support of the terminal (if it even has one), and do everything in the app. This is the only way of having full control of what is displayed, especially when "higher-level protocols" need to be used to tailor the UBA to the need of the user, because there's usually no way of asking the terminal to apply a behavior which deviates from the UBA. (If needed, I can provide examples of subtle problems with using BiDi support of a terminal in BiDi-aware editing. Not sure this will be interesting to too many readers of this forum, though.)
