Send Unicode directional isolate characters around horizontal pane

borders if the terminal support UTF-8 and an extension terminfo(5)
capability "Bidi" is present. On terminals with BiDi support (ie, VTE)
this seems to be enough to display right-to-left text acceptably enough
to be usable (with some caveats about the mouse position). Requested by
and with help from Mahmoud Elagdar in GitHub issue 2425.

1 files changed, 1 insertions, 0 deletions

diff --git a/tmux.h b/tmux.h
index ce45cece..1cca8c8f 100644
--- a/tmux.h
+++ b/tmux.h
@@ -261,6 +261,7 @@ enum tty_code_code {
 	TTYC_AX,
 	TTYC_BCE,
 	TTYC_BEL,
+	TTYC_BIDI,
 	TTYC_BLINK,
 	TTYC_BOLD,
 	TTYC_CIVIS,