master 4e1661e96c4 3/4: * src/term.c (produce_glyphs): Synchronize with gui_produce_glyphs.

[Po Lu]

branch: master
commit 4e1661e96c4412e8bf04cd1ec8948df4a782a10c
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    * src/term.c (produce_glyphs): Synchronize with gui_produce_glyphs.
---
 src/term.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/term.c b/src/term.c
index b3793088fac..3fa244be824 100644
--- a/src/term.c
+++ b/src/term.c
@@ -1631,8 +1631,19 @@ produce_glyphs (struct it *it)
     it->pixel_width = it->nglyphs = 0;
   else if (it->char_to_display == '\t')
     {
+      /* wrap-prefix strings are prepended to continuation lines, so
+        the width of tab characters inside should be computed from
+        the start of this screen line rather than as a product of the
+        total width of the physical line being wrapped.  */
       int absolute_x = (it->current_x
-                       + it->continuation_lines_width);
+                       + (it->string_from_prefix_prop_p
+                          /* Subtract the width of the
+                             prefix from it->current_x if
+                             it exists.  */
+                          ? 0 : (it->continuation_lines_width
+                                 ? (it->continuation_lines_width
+                                    - it->wrap_prefix_width)
+                                 : 0)));
       int x0 = absolute_x;
       /* Adjust for line numbers.  */
       if (!NILP (Vdisplay_line_numbers) && it->line_number_produced_p)