Fix text direction of the HarfBuzz shaping buffer

* src/indent.c (scan_for_column, compute_motion):
* src/xdisp.c (CHAR_COMPOSED_P): Pass PDIR argument to
composition_reseat_it.
* src/composite.c (composition_reseat_it): Accept an
additional argument PDIR that provides the current paragraph's
base direction; all callers changed.  Use PDIR to fix
calculation of the DIRECTION argument to autocmp_chars.
(Bug#33944)
* src/composite.h: Include dispextern.h.
(composition_reseat_it): Update prototype.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/indent.c b/src/indent.c
index 18855768d37..e0d35f87652 100644
--- a/src/indent.c
+++ b/src/indent.c
@@ -599,7 +599,7 @@ scan_for_column (ptrdiff_t *endpos, EMACS_INT *goalcol, ptrdiff_t *prevcol)
       if (cmp_it.id >= 0
           || (scan == cmp_it.stop_pos
               && composition_reseat_it (&cmp_it, scan, scan_byte, end,
-                                        w, NULL, Qnil)))
+                                        w, NEUTRAL_DIR, NULL, Qnil)))
         composition_update_it (&cmp_it, scan, scan_byte, Qnil);
       if (cmp_it.id >= 0)
         {
@@ -1506,7 +1506,7 @@ compute_motion (ptrdiff_t from, ptrdiff_t frombyte, EMACS_INT fromvpos,
           if (cmp_it.id >= 0
               || (pos == cmp_it.stop_pos
                   && composition_reseat_it (&cmp_it, pos, pos_byte, to, win,
-                                            NULL, Qnil)))
+                                            NEUTRAL_DIR, NULL, Qnil)))
             composition_update_it (&cmp_it, pos, pos_byte, Qnil);
           if (cmp_it.id >= 0)
             {