Fix display of R2L lines and cursor motion in bidi buffers.

 xdisp.c (find_row_end): New function, refactored from display_line.
 (display_line): Use it.
 (extend_face_to_end_of_line): In almost-filled rows, extend only
 if the row is R2L and not continued.
 (display_line): Fix prepending of truncation glyphs to R2L rows.
 Preserve overlay and string info in row->end.
 (insert_left_trunc_glyphs): Support addition of left truncation
 glyphs to R2L rows.
 (set_cursor_from_row): Don't place cursor on the vertical border
 glyph between adjacent windows.  Fix a crash when a display string
 is continued to the next line.  Don't return zero if cursor was
 found by `cursor' property of a display string.
 (try_cursor_movement): Don't assume that row->end == (row+1)->start,
 test for that explicitly.

1 files changed, 20 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index e5c6a0b23b7..0b4baf64cf4 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,23 @@
+2010-05-01  Eli Zaretskii  <eliz@gnu.org>
+
+        Miscellaneous fixes of bidi display.
+
+        * xdisp.c (find_row_end): New function, refactored from
+        display_line.
+        (display_line): Use it.
+        (extend_face_to_end_of_line): In almost-filled rows, extend only
+        if the row is R2L and not continued.
+        (display_line): Fix prepending of truncation glyphs to R2L rows.
+        Preserve overlay and string info in row->end.
+        (insert_left_trunc_glyphs): Support addition of left truncation
+        glyphs to R2L rows.
+        (set_cursor_from_row): Don't place cursor on the vertical border
+        glyph between adjacent windows.  Fix a crash when a display string
+        is continued to the next line.  Don't return zero if cursor was
+        found by `cursor' property of a display string.
+        (try_cursor_movement): Don't assume that row->end == (row+1)->start,
+        test for that explicitly.
+
 2010-05-01  Glenn Morris  <rgm@gnu.org>
 
         * Makefile.in (gmallocobj, rallocobj, vmlimitobj): Initialize to null,