Fix handling of brackets in BPA

* src/bidi.c (bidi_resolve_brackets): Fix implementation of UBA's
N0 rule when there are no strong directional characters inside the
bracketed pair.  (Bug#54219)

1 files changed, 3 insertions, 1 deletions

diff --git a/src/bidi.c b/src/bidi.c
index 30a3be6c94e..5f47d9e9a7c 100644
--- a/src/bidi.c
+++ b/src/bidi.c
@@ -2924,7 +2924,8 @@ bidi_resolve_brackets (struct bidi_it *bidi_it)
       eassert (bidi_it->bracket_pairing_pos > bidi_it->charpos);
       if (bidi_it->bracket_enclosed_type == embedding_type) /* N0b */
         type = embedding_type;
-      else
+      else if (bidi_it->bracket_enclosed_type == STRONG_L   /* N0c, N0d */
+               || bidi_it->bracket_enclosed_type == STRONG_R)
         {
           switch (bidi_it->prev_for_neutral.type)
             {
@@ -2944,6 +2945,7 @@ bidi_resolve_brackets (struct bidi_it *bidi_it)
               break;
             default:
               /* N0d: Do not set the type for that bracket pair.  */
+              /* (Actuallly, this shouldn't happen.)  */
               break;
             }
         }