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, 4 insertions, 0 deletions

diff --git a/tmux.1 b/tmux.1
index 530cd559..090b9436 100644
--- a/tmux.1
+++ b/tmux.1
@@ -5953,6 +5953,10 @@ option should be used.
 An existing extension that tells
 .Nm
 the terminal supports default colours.
+.It Em \&Bidi
+Tell
+.Nm
+that the terminal supports the VTE bidirectional text extensions.
 .It Em \&Cs , Cr
 Set the cursor colour.
 The first takes a single string argument and is used to set the colour;