READLINE PATCH REPORT
                          =====================

Readline-Release: 7.0
Patch-ID: readline70-004

Bug-Reported-by:        Kieran Grant <[email protected]>
Bug-Reference-ID:       <[email protected]>
Bug-Reference-URL:      http://lists.gnu.org/archive/html/bug-bash/2018-02/msg00002.html

Bug-Description:

With certain values for PS1, especially those that wrap onto three or more
lines, readline will miscalculate the number of invisible characters,
leading to crashes and core dumps.

Patch (apply with `patch -p0'):

*** ../readline-7.0.3/display.c 2016-07-28 14:49:33.000000000 -0400
--- display.c   2018-02-03 19:19:35.000000000 -0500
***************
*** 772,776 ****
       wadjust = (newlines == 0)
                 ? prompt_invis_chars_first_line
!                 : ((newlines == prompt_lines_estimate) ? wrap_offset : prompt_invis_chars_first_line);

       /* fix from Darin Johnson <[email protected]> for prompt string with
--- 788,794 ----
       wadjust = (newlines == 0)
                 ? prompt_invis_chars_first_line
!                 : ((newlines == prompt_lines_estimate)
!                       ? (wrap_offset - prompt_invis_chars_first_line)
!                       : 0);

       /* fix from Darin Johnson <[email protected]> for prompt string with
*** ../readline-7.0/patchlevel  2013-11-15 08:11:11.000000000 -0500
--- patchlevel  2014-03-21 08:28:40.000000000 -0400
***************
*** 1,3 ****
 # Do not edit -- exists only for use by patch

! 3
--- 1,3 ----
 # Do not edit -- exists only for use by patch

! 4

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