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READLINE PATCH REPORT
=====================
Readline-Release: 5.2
Patch-ID: readline52-008
Bug-Reported-by: dAniel hAhler <ubuntu@thequod.de>
Bug-Reference-ID: <4702ED8A.5000503@thequod.de>
Bug-Reference-URL: https://bugs.launchpad.net/ubuntu/+source/bash/+bug/119938
Bug-Description:
When updating the display after displaying, for instance, a list of possible
completions, readline will place the cursor at the wrong position if the
prompt contains invisible characters and a newline.
Patch:
*** ../readline-5.2-patched/display.c Mon Aug 6 14:26:29 2007
--- ./display.c Wed Oct 10 22:43:58 2007
***************
*** 1049,1053 ****
else
tx = nleft;
! if (_rl_last_c_pos > tx)
{
_rl_backspace (_rl_last_c_pos - tx); /* XXX */
--- 1049,1053 ----
else
tx = nleft;
! if (tx >= 0 && _rl_last_c_pos > tx)
{
_rl_backspace (_rl_last_c_pos - tx); /* XXX */
***************
*** 1205,1209 ****
{
register char *ofd, *ols, *oe, *nfd, *nls, *ne;
! int temp, lendiff, wsatend, od, nd;
int current_invis_chars;
int col_lendiff, col_temp;
--- 1205,1209 ----
{
register char *ofd, *ols, *oe, *nfd, *nls, *ne;
! int temp, lendiff, wsatend, od, nd, o_cpos;
int current_invis_chars;
int col_lendiff, col_temp;
***************
*** 1466,1469 ****
--- 1466,1471 ----
}
+ o_cpos = _rl_last_c_pos;
+
/* When this function returns, _rl_last_c_pos is correct, and an absolute
cursor postion in multibyte mode, but a buffer index when not in a
***************
*** 1475,1479 ****
invisible characters in the prompt string. Let's see if setting this when
we make sure we're at the end of the drawn prompt string works. */
! if (current_line == 0 && MB_CUR_MAX > 1 && rl_byte_oriented == 0 && _rl_last_c_pos == prompt_physical_chars)
cpos_adjusted = 1;
#endif
--- 1477,1483 ----
invisible characters in the prompt string. Let's see if setting this when
we make sure we're at the end of the drawn prompt string works. */
! if (current_line == 0 && MB_CUR_MAX > 1 && rl_byte_oriented == 0 &&
! (_rl_last_c_pos > 0 || o_cpos > 0) &&
! _rl_last_c_pos == prompt_physical_chars)
cpos_adjusted = 1;
#endif
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