Patch 8.2.1954
Problem:    Vim9: not all command modifiers are tested.
Solution:   Add tests for "keep" modifiers.  Fix that marks are lost even
            though ":lockmarks" is used.
Files:      src/ex_cmds.c, src/testdir/test_vim9_cmd.vim


*** ../vim-8.2.1953/src/ex_cmds.c       2020-11-01 13:57:37.551988657 +0100
--- src/ex_cmds.c       2020-11-04 16:51:56.559534507 +0100
***************
*** 1254,1259 ****
--- 1254,1269 ----
                if (read_linecount >= linecount)
                    // move all marks from old lines to new lines
                    mark_adjust(line1, line2, linecount, 0L);
+               else if (save_cmod_flags & CMOD_LOCKMARKS)
+               {
+                   // Move marks from the lines below the new lines down by
+                   // the number of lines lost.
+                   // Move marks from the lines that will be deleted to the
+                   // new lines and below.
+                   mark_adjust(line2 + 1, (linenr_T)MAXLNUM,
+                                              linecount - read_linecount, 0L);
+                   mark_adjust(line1, line2, linecount, 0L);
+               }
                else
                {
                    // move marks from old lines to new lines, delete marks
*** ../vim-8.2.1953/src/testdir/test_vim9_cmd.vim       2020-11-02 
21:08:43.118288911 +0100
--- src/testdir/test_vim9_cmd.vim       2020-11-04 18:01:48.189523391 +0100
***************
*** 439,451 ****
      DoTest(false, true, true)
      DoTest(true, true, true)
      set cpo&vim
    endif
  
!   # TODO
!   # lockmarks
!   # keepalt
!   # keeppatterns
!   # keepjumps
  enddef
  
  def Test_command_modifier_other()
--- 439,480 ----
      DoTest(false, true, true)
      DoTest(true, true, true)
      set cpo&vim
+ 
+     new
+     setline(1, ['one', 'two', 'three', 'four'])
+     assert_equal(4, line("$"))
+     normal 1Gma
+     normal 2Gmb
+     normal 3Gmc
+     lockmarks :1,2!wc
+     # line is deleted, marks don't move
+     assert_equal(3, line("$"))
+     assert_equal('four', getline(3))
+     assert_equal(1, line("'a"))
+     assert_equal(2, line("'b"))
+     assert_equal(3, line("'c"))
+     quit!
    endif
  
!   edit Xone
!   edit Xtwo
!   assert_equal('Xone', expand('#'))
!   keepalt edit Xthree
!   assert_equal('Xone', expand('#'))
! 
!   normal /a*b*
!   assert_equal('a*b*', histget("search"))
!   keeppatterns normal /c*d*
!   assert_equal('a*b*', histget("search"))
! 
!   new
!   setline(1, range(10))
!   :10
!   normal gg
!   assert_equal(10, getpos("''")[1])
!   keepjumps normal 5G
!   assert_equal(10, getpos("''")[1])
!   quit!
  enddef
  
  def Test_command_modifier_other()
*** ../vim-8.2.1953/src/version.c       2020-11-04 15:07:13.057780706 +0100
--- src/version.c       2020-11-04 16:30:22.830696052 +0100
***************
*** 752,753 ****
--- 752,755 ----
  {   /* Add new patch number below this line */
+ /**/
+     1954,
  /**/

-- 
% cat /usr/include/sys/errno.h
#define EPERM           1               /* Operation not permitted */
#define ENOENT          2               /* No such file or directory */
#define ESRCH           3               /* No such process */
[...]
#define EMACS           666             /* Too many macros */
%

 /// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\  an exciting new programming language -- http://www.Zimbu.org        ///
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