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[Bug-readline] Readline-6.0 Official Patch 4


From: Chet Ramey
Subject: [Bug-readline] Readline-6.0 Official Patch 4
Date: Mon, 27 Jul 2009 18:01:51 -0400

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

Readline-Release: 6.0
Patch-ID: readline60-004

Bug-Reported-by:        address@hidden
Bug-Reference-ID:       <address@hidden>
Bug-Reference-URL:      
http://lists.gnu.org/archive/html/bug-bash/2009-05/msg00074.html

Bug-Description:

There are occasional cursor positioning errors when using readline's
horizontal scroll mode.

Patch:

*** ../readline-6.0-patched/display.c   2009-05-22 12:32:25.000000000 -0400
--- display.c   2009-05-29 23:32:20.000000000 -0400
***************
*** 1190,1196 ****
        line[t - 1] = '>';
  
!       if (!rl_display_fixed || forced_display || lmargin != last_lmargin)
        {
          forced_display = 0;
          update_line (&visible_line[last_lmargin],
                       &invisible_line[lmargin],
--- 1192,1200 ----
        line[t - 1] = '>';
  
!       if (rl_display_fixed == 0 || forced_display || lmargin != last_lmargin)
        {
          forced_display = 0;
+         o_cpos = _rl_last_c_pos;
+         cpos_adjusted = 0;
          update_line (&visible_line[last_lmargin],
                       &invisible_line[lmargin],
***************
*** 1200,1203 ****
--- 1204,1214 ----
                       0);
  
+         if ((MB_CUR_MAX > 1 && rl_byte_oriented == 0) &&
+             cpos_adjusted == 0 &&
+             _rl_last_c_pos != o_cpos &&
+             _rl_last_c_pos > wrap_offset &&
+             o_cpos < prompt_last_invisible)
+               _rl_last_c_pos -= prompt_invis_chars_first_line;        /* XXX 
- was wrap_offset */
+ 
          /* If the visible new line is shorter than the old, but the number
             of invisible characters is greater, and we are at the end of
*** ../readline-6.0/patchlevel  2008-11-18 11:01:14.000000000 -0500
--- patchlevel  2009-05-09 12:01:06.000000000 -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

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer

Chet Ramey, ITS, CWRU    address@hidden    http://tiswww.tis.case.edu/~chet/




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