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From ee9a3cee01983dca05d47591ea7b8b7b15084cb1 Mon Sep 17 00:00:00 2001
From: Chet Ramey <chet.ramey@case.edu>
Date: Tue, 15 Sep 2026 11:14:33 -0400
Subject: Bash-5.3 patch 17: Modify the readline redisplay code to use a buffer
offset instead of the physical prompt length in a multibyte locale to
determine whether to reprint the prompt from column 0 because the cursor is
before the last invisible character in the prompt string.
--- a/lib/readline/display.c
+++ b/lib/readline/display.c
@@ -1497,7 +1497,6 @@ rl_redisplay (void)
the characters from the current cursor position. But we
only need to reprint it if the cursor is before the last
invisible character in the prompt string. */
- /* XXX - why not use local_prompt_len? */
nleft = prompt_visible_length + wrap_offset;
if (cursor_linenum == prompt_last_screen_line)
{
@@ -1509,11 +1508,7 @@ rl_redisplay (void)
on the current screen line begins in the buffer. It is a
buffer position, an index into curline
(local_prompt + pmt_offset) */
- cursor_bufpos = pmt_offset;
- if (mb_cur_max == 1 || rl_byte_oriented)
- cursor_bufpos += _rl_last_c_pos;
- else
- cursor_bufpos += _rl_last_c_pos + curline_invchars;
+ cursor_bufpos = pmt_offset + local_prompt_len;
if (local_prompt && local_prompt_invis_chars[cursor_linenum] &&
_rl_last_c_pos > 0 &&
--- a/patchlevel.h
+++ b/patchlevel.h
@@ -25,6 +25,6 @@
regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
looks for to find the patch level (for the sccs version string). */
-#define PATCHLEVEL 16
+#define PATCHLEVEL 17
#endif /* _PATCHLEVEL_H_ */
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