#! /bin/sh -e

if [ $# -eq 3 -a "$2" = '-d' ]; then
    pdir="-d $3"
elif [ $# -ne 1 ]; then
    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
    exit 1
fi
case "$1" in
    -patch) patch $pdir -f --no-backup-if-mismatch -p0 < $0;;
    -unpatch) patch $pdir -f --no-backup-if-mismatch -R -p0 < $0;;
    *)
	echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
	exit 1
esac
exit 0

# DP: bash-3.2 upstream patch bash32-017

			     BASH PATCH REPORT
			     =================

Bash-Release: 3.2
Patch-ID: bash32-017

Bug-Reported-by: Peter Volkov <torre_cremata@mail.ru>
Bug-Reference-ID: <1173636022.7039.36.camel@localhost>
Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2007-03/msg00039.html

Bug-Description:

When restoring the original prompt after finishing an incremental search,
bash sometimes places the cursor incorrectly if the primary prompt contains
invisible characters.

Patch:

*** ../bash-3.2.16/lib/readline/display.c	Fri Apr 20 13:30:16 2007
--- lib/readline/display.c	Fri Apr 20 15:17:01 2007
***************
*** 1599,1604 ****
  	  if (temp > 0)
  	    {
  	      _rl_output_some_chars (nfd, temp);
! 	      _rl_last_c_pos += _rl_col_width (nfd, 0, temp);;
  	    }
  	}
--- 1599,1618 ----
  	  if (temp > 0)
  	    {
+ 	      /* If nfd begins at the prompt, or before the invisible
+ 		 characters in the prompt, we need to adjust _rl_last_c_pos
+ 		 in a multibyte locale to account for the wrap offset and
+ 		 set cpos_adjusted accordingly. */
  	      _rl_output_some_chars (nfd, temp);
! 	      if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
! 		{
!                   _rl_last_c_pos += _rl_col_width (nfd, 0, temp);
!                   if (current_line == 0 && wrap_offset &&  ((nfd - new) <= prompt_last_invisible))
! 		    {
! 		      _rl_last_c_pos -= wrap_offset;
! 		      cpos_adjusted = 1;
! 		    }
! 		}
!               else
!                 _rl_last_c_pos += temp;
  	    }
  	}
***************
*** 1608,1613 ****
--- 1622,1639 ----
  	  if (temp > 0)
  	    {
+ 	      /* If nfd begins at the prompt, or before the invisible
+ 		 characters in the prompt, we need to adjust _rl_last_c_pos
+ 		 in a multibyte locale to account for the wrap offset and
+ 		 set cpos_adjusted accordingly. */
  	      _rl_output_some_chars (nfd, temp);
  	      _rl_last_c_pos += col_temp;		/* XXX */
+ 	      if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
+ 		{
+ 		  if (current_line == 0 && wrap_offset &&  ((nfd - new) <= prompt_last_invisible))
+ 		    {
+ 		      _rl_last_c_pos -= wrap_offset;
+ 		      cpos_adjusted = 1;
+ 		    }
+ 		}
  	    }
  	  lendiff = (oe - old) - (ne - new);
*** ../bash-3.2/patchlevel.h	Thu Apr 13 08:31:04 2006
--- patchlevel.h	Mon Oct 16 14:22:54 2006
***************
*** 26,30 ****
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 16
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 17
  
  #endif /* _PATCHLEVEL_H_ */