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READLINE PATCH REPORT
=====================
Readline-Release: 5.1
Patch-ID: readline51-004
Bug-Reported-by: Mike Stroyan <mike.stroyan@hp.com>
Bug-Reference-ID: <20060203191607.GC27614@localhost>
Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2006-02/msg00004.html
Bug-Description:
The displayed search prompt is corrupted when using non-incremental
searches in vi and emacs mode if the prompt contains non-printing
characters or spans multiple lines. The prompt is expanded more than
once; the second time without the escape sequences that protect non-
printing characters from the length calculations.
Patch:
*** readline-5.1-patched/display.c Wed Nov 30 14:05:02 2005
--- readline-5.1/display.c Sat Feb 18 12:14:58 2006
***************
*** 1983,1993 ****
int pchar;
{
int len;
! char *pmt;
rl_save_prompt ();
! if (saved_local_prompt == 0)
{
len = (rl_prompt && *rl_prompt) ? strlen (rl_prompt) : 0;
pmt = (char *)xmalloc (len + 2);
--- 1998,2012 ----
int pchar;
{
int len;
! char *pmt, *p;
rl_save_prompt ();
! /* We've saved the prompt, and can do anything with the various prompt
! strings we need before they're restored. We want the unexpanded
! portion of the prompt string after any final newline. */
! p = rl_prompt ? strrchr (rl_prompt, '\n') : 0;
! if (p == 0)
{
len = (rl_prompt && *rl_prompt) ? strlen (rl_prompt) : 0;
pmt = (char *)xmalloc (len + 2);
***************
*** 1998,2016 ****
}
else
{
! len = *saved_local_prompt ? strlen (saved_local_prompt) : 0;
pmt = (char *)xmalloc (len + 2);
if (len)
! strcpy (pmt, saved_local_prompt);
pmt[len] = pchar;
pmt[len+1] = '\0';
! local_prompt = savestring (pmt);
! prompt_last_invisible = saved_last_invisible;
! prompt_visible_length = saved_visible_length + 1;
! }
prompt_physical_chars = saved_physical_chars + 1;
-
return pmt;
}
--- 2017,2033 ----
}
else
{
! p++;
! len = strlen (p);
pmt = (char *)xmalloc (len + 2);
if (len)
! strcpy (pmt, p);
pmt[len] = pchar;
pmt[len+1] = '\0';
! }
+ /* will be overwritten by expand_prompt, called from rl_message */
prompt_physical_chars = saved_physical_chars + 1;
return pmt;
}
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