feat(column)!: rework 'statuscolumn' %r/l items

Problem:  A custom 'statuscolumn' needs to check a bunch of options and
          placed signs to replicate the default number column.
Solution: Rework %l item to include the necessary logic to mimic the
          default number column. Remove now redundant %r item.

10 files changed, 256 insertions, 207 deletions

diff --git a/runtime/doc/news.txt b/runtime/doc/news.txt
index 4addbf84c3..848a642774 100644
--- a/runtime/doc/news.txt
+++ b/runtime/doc/news.txt
@@ -62,7 +62,10 @@ LUA
 
 OPTIONS
 
-• TODO
+• The 'statuscolumn' `%l` item can now be used as a number column segment that
+  changes according to related options. It takes care of alignment, 'number',
+  'relativenumber' and 'signcolumn' set to "number". The now redundant `%r` item
+  is no longer treated specially for 'statuscolumn'.
 
 PLUGINS
 
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index f02d3c9741..244465ed6e 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -5951,8 +5951,7 @@ A jump table for the options with a short description can be found at |Q_op|.
 	Some of the items from the 'statusline' format are different for
 	'statuscolumn':
 
-	%l	line number of currently drawn line
-	%r	relative line number of currently drawn line
+	%l	line number column for currently drawn line
 	%s	sign column for currently drawn line
 	%C	fold column for currently drawn line
 
@@ -5979,11 +5978,8 @@ A jump table for the options with a short description can be found at |Q_op|.
 	handler should be written with this in mind.
 
 	Examples: >vim
-		" Relative number with bar separator and click handlers:
-		set statuscolumn=%@SignCb@%s%=%T%@NumCb@%r│%T
-
-		" Right aligned relative cursor line number:
-		let &stc='%=%{v:relnum?v:relnum:v:lnum} '
+		" Line number with bar separator and click handlers:
+		set statuscolumn=%@SignCb@%s%=%T%@NumCb@%l│%T
 
 		" Line numbers in hexadecimal for non wrapped part of lines:
 		let &stc='%=%{v:virtnum>0?"":printf("%x",v:lnum)} '
diff --git a/runtime/lua/vim/_meta/options.lua b/runtime/lua/vim/_meta/options.lua
index 155c93726b..befb56d3d5 100644
--- a/runtime/lua/vim/_meta/options.lua
+++ b/runtime/lua/vim/_meta/options.lua
@@ -6373,8 +6373,7 @@ vim.go.sol = vim.go.startofline
 --- Some of the items from the 'statusline' format are different for
 --- 'statuscolumn':
 ---
---- %l	line number of currently drawn line
---- %r	relative line number of currently drawn line
+--- %l	line number column for currently drawn line
 --- %s	sign column for currently drawn line
 --- %C	fold column for currently drawn line
 ---
@@ -6403,11 +6402,8 @@ vim.go.sol = vim.go.startofline
 --- Examples:
 ---
 --- ```vim
---- 	" Relative number with bar separator and click handlers:
---- 	set statuscolumn=%@SignCb@%s%=%T%@NumCb@%r│%T
----
---- 	" Right aligned relative cursor line number:
---- 	let &stc='%=%{v:relnum?v:relnum:v:lnum} '
+--- 	" Line number with bar separator and click handlers:
+--- 	set statuscolumn=%@SignCb@%s%=%T%@NumCb@%l│%T
 ---
 --- 	" Line numbers in hexadecimal for non wrapped part of lines:
 --- 	let &stc='%=%{v:virtnum>0?"":printf("%x",v:lnum)} '
diff --git a/src/nvim/drawline.c b/src/nvim/drawline.c
index 4247705896..6109652f7d 100644
--- a/src/nvim/drawline.c
+++ b/src/nvim/drawline.c
@@ -587,12 +587,13 @@ static void draw_statuscol(win_T *wp, winlinevars_T *wlv, linenr_T lnum, int vir
 
   char buf[MAXPATHL];
   // When a buffer's line count has changed, make a best estimate for the full
-  // width of the status column by building with "w_nrwidth_line_count". Add
-  // potentially truncated width and rebuild before drawing anything.
+  // width of the status column by building with the largest possible line number.
+  // Add potentially truncated width and rebuild before drawing anything.
   if (wp->w_statuscol_line_count != wp->w_nrwidth_line_count) {
     wp->w_statuscol_line_count = wp->w_nrwidth_line_count;
     set_vim_var_nr(VV_VIRTNUM, 0);
-    int width = build_statuscol_str(wp, wp->w_nrwidth_line_count, 0, buf, stcp);
+    int width = build_statuscol_str(wp, wp->w_nrwidth_line_count,
+                                    wp->w_nrwidth_line_count, buf, stcp);
     if (width > stcp->width) {
       int addwidth = MIN(width - stcp->width, MAX_STCWIDTH - stcp->width);
       wp->w_nrwidth += addwidth;
diff --git a/src/nvim/options.lua b/src/nvim/options.lua
index f323926015..9edb429cf8 100644
--- a/src/nvim/options.lua
+++ b/src/nvim/options.lua
@@ -8037,8 +8037,7 @@ return {
         Some of the items from the 'statusline' format are different for
         'statuscolumn':
 
-        %l	line number of currently drawn line
-        %r	relative line number of currently drawn line
+        %l	line number column for currently drawn line
         %s	sign column for currently drawn line
         %C	fold column for currently drawn line
 
@@ -8065,11 +8064,8 @@ return {
         handler should be written with this in mind.
 
         Examples: >vim
-        	" Relative number with bar separator and click handlers:
-        	set statuscolumn=%@SignCb@%s%=%T%@NumCb@%r│%T
-
-        	" Right aligned relative cursor line number:
-        	let &stc='%=%{v:relnum?v:relnum:v:lnum} '
+        	" Line number with bar separator and click handlers:
+        	set statuscolumn=%@SignCb@%s%=%T%@NumCb@%l│%T
 
         	" Line numbers in hexadecimal for non wrapped part of lines:
         	let &stc='%=%{v:virtnum>0?"":printf("%x",v:lnum)} '
diff --git a/src/nvim/statusline.c b/src/nvim/statusline.c
index b8938e5f40..ad7e4587a9 100644
--- a/src/nvim/statusline.c
+++ b/src/nvim/statusline.c
@@ -1017,7 +1017,6 @@ int build_stl_str_hl(win_T *wp, char *out, size_t outlen, char *fmt, OptIndex op
   int evaldepth = 0;
 
   int curitem = 0;
-  int foldsignitem = -1;
   bool prevchar_isflag = true;
   bool prevchar_isitem = false;
 
@@ -1234,6 +1233,8 @@ int build_stl_str_hl(win_T *wp, char *out, size_t outlen, char *fmt, OptIndex op
     }
     int minwid = 0;
     int maxwid = 9999;
+    int foldsignitem = -1;        // Start of fold or sign item
+    bool left_align_num = false;  // Number item for should be left-aligned
     bool left_align = false;
 
     // Denotes that numbers should be left-padded with zeros
@@ -1505,12 +1506,20 @@ int build_stl_str_hl(win_T *wp, char *out, size_t outlen, char *fmt, OptIndex op
     }
 
     case STL_LINE:
-      // Overload %l with v:lnum for 'statuscolumn'
-      if (stcp != NULL) {
-        if (wp->w_p_nu && !get_vim_var_nr(VV_VIRTNUM)) {
-          num = (int)get_vim_var_nr(VV_LNUM);
+      // Overload %l with v:(re)lnum for 'statuscolumn'. Place a sign when 'signcolumn'
+      // is set to "number". Take care of alignment for 'number' + 'relativenumber'.
+      if (stcp != NULL && (wp->w_p_nu || wp->w_p_rnu) && get_vim_var_nr(VV_VIRTNUM) == 0) {
+        if (wp->w_maxscwidth == SCL_NUM && stcp->sattrs[0].text[0]) {
+          goto stcsign;
         }
-      } else {
+        int relnum = (int)get_vim_var_nr(VV_RELNUM);
+        num = (!wp->w_p_rnu || (wp->w_p_nu && relnum == 0)) ? (int)get_vim_var_nr(VV_LNUM) : relnum;
+        left_align_num = wp->w_p_rnu && wp->w_p_nu && relnum == 0;
+        if (!left_align_num) {
+          stl_items[curitem].type = Separate;
+          stl_items[curitem++].start = out_p;
+        }
+      } else if (stcp == NULL) {
         num = (wp->w_buffer->b_ml.ml_flags & ML_EMPTY) ? 0 : wp->w_cursor.lnum;
       }
       break;
@@ -1609,16 +1618,9 @@ int build_stl_str_hl(win_T *wp, char *out, size_t outlen, char *fmt, OptIndex op
 
     case STL_ROFLAG:
     case STL_ROFLAG_ALT:
-      // Overload %r with v:relnum for 'statuscolumn'
-      if (stcp != NULL) {
-        if (wp->w_p_rnu && !get_vim_var_nr(VV_VIRTNUM)) {
-          num = (int)get_vim_var_nr(VV_RELNUM);
-        }
-      } else {
-        itemisflag = true;
-        if (wp->w_buffer->b_p_ro) {
-          str = (opt == STL_ROFLAG_ALT) ? ",RO" : _("[RO]");
-        }
+      itemisflag = true;
+      if (wp->w_buffer->b_p_ro) {
+        str = (opt == STL_ROFLAG_ALT) ? ",RO" : _("[RO]");
       }
       break;
 
@@ -1632,11 +1634,12 @@ int build_stl_str_hl(win_T *wp, char *out, size_t outlen, char *fmt, OptIndex op
 
     case STL_FOLDCOL:    // 'C' for 'statuscolumn'
     case STL_SIGNCOL: {  // 's' for 'statuscolumn'
+stcsign:
       if (stcp == NULL) {
         break;
       }
       int fdc = opt == STL_FOLDCOL ? compute_foldcolumn(wp, 0) : 0;
-      int width = opt == STL_FOLDCOL ? fdc > 0 : wp->w_scwidth;
+      int width = opt == STL_FOLDCOL ? fdc > 0 : opt == STL_SIGNCOL ? wp->w_scwidth : 1;
 
       if (width <= 0) {
         break;
@@ -1844,7 +1847,6 @@ int build_stl_str_hl(win_T *wp, char *out, size_t outlen, char *fmt, OptIndex op
 
       // For a 'statuscolumn' sign or fold item, add an item to reset the highlight group
       if (foldsignitem >= 0) {
-        foldsignitem = -1;
         stl_items[curitem].type = Highlight;
         stl_items[curitem].start = out_p;
         stl_items[curitem].minwid = 0;
@@ -1949,6 +1951,11 @@ int build_stl_str_hl(win_T *wp, char *out, size_t outlen, char *fmt, OptIndex op
 
     // Item processed, move to the next
     curitem++;
+    // For a 'statuscolumn' number item that is left aligned, add a separator item.
+    if (left_align_num) {
+      stl_items[curitem].type = Separate;
+      stl_items[curitem++].start = out_p;
+    }
   }
 
   *out_p = NUL;
diff --git a/test/functional/api/vim_spec.lua b/test/functional/api/vim_spec.lua
index b32f2b1cb2..d28064447c 100644
--- a/test/functional/api/vim_spec.lua
+++ b/test/functional/api/vim_spec.lua
@@ -3887,11 +3887,11 @@ describe('API', function()
         ))
         eq(
           {
-            str = '3 ',
-            width = 2,
+            str = '       3 ',
+            width = 9,
             highlights = {
               { group = 'LineNr', start = 0 },
-              { group = 'ErrorMsg', start = 1 },
+              { group = 'ErrorMsg', start = 8 },
             },
           },
           api.nvim_eval_statusline('%l%#ErrorMsg# ', { use_statuscol_lnum = 3, highlights = true })
diff --git a/test/functional/terminal/window_spec.lua b/test/functional/terminal/window_spec.lua
index 118ca266dd..64534ca8dc 100644
--- a/test/functional/terminal/window_spec.lua
+++ b/test/functional/terminal/window_spec.lua
@@ -130,9 +130,9 @@ describe(':terminal window', function()
       ]])
       feed_data('\nabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ')
       screen:expect([[
-        {7:++7   }                                            |
-        {7:++8   }abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQR|
-        {7:++9   }TUVWXYZ                                     |
+        {7:++ 7  }                                            |
+        {7:++ 8  }abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQR|
+        {7:++ 9  }TUVWXYZ                                     |
         {7:++10  }abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQR|
         {7:++11  }TUVWXYZrows: 6, cols: 44                    |
         {7:++12  }{1: }                                           |
diff --git a/test/functional/ui/float_spec.lua b/test/functional/ui/float_spec.lua
index cdaae6cfee..7aff47e50e 100644
--- a/test/functional/ui/float_spec.lua
+++ b/test/functional/ui/float_spec.lua
@@ -1532,9 +1532,9 @@ describe('float window', function()
           [2:----------------------------------------]|*6
           [3:----------------------------------------]|
         ## grid 2
-          {20:1}{19:   }{20:   }{22:^x}{21:                                }|
-          {14:2}{19:   }{14:   }{22:y}                                |
-          {14:3}{19:   }{14:   }{22: }                                |
+          {20:   1}{19:   }{22:^x}{21:                                }|
+          {14:   2}{19:   }{22:y}                                |
+          {14:   3}{19:   }{22: }                                |
           {0:~                                       }|*3
         ## grid 3
                                                   |
@@ -1545,9 +1545,9 @@ describe('float window', function()
         ]], float_pos={[4] = {1001, "NW", 1, 4, 10, true}}}
       else
         screen:expect{grid=[[
-          {20:1}{19:   }{20:   }{22:^x}{21:                                }|
-          {14:2}{19:   }{14:   }{22:y}                                |
-          {14:3}{19:   }{14:   }{22: }  {15:x                   }          |
+          {20:   1}{19:   }{22:^x}{21:                                }|
+          {14:   2}{19:   }{22:y}                                |
+          {14:   3}{19:   }{22: }  {15:x                   }          |
           {0:~         }{15:y                   }{0:          }|
           {0:~         }{15:                    }{0:          }|*2
                                                   |
diff --git a/test/functional/ui/statuscolumn_spec.lua b/test/functional/ui/statuscolumn_spec.lua
index faf94bccbe..c388d347e2 100644
--- a/test/functional/ui/statuscolumn_spec.lua
+++ b/test/functional/ui/statuscolumn_spec.lua
@@ -94,46 +94,80 @@ describe('statuscolumn', function()
   end)
 
   it("works with 'number' and 'relativenumber'", function()
-    command([[set stc=%{&nu?v:lnum:''}%=%{&rnu?'\ '.v:relnum:''}│]])
-    screen:expect([[
-      {8:4 │}aaaaa                                             |
-      {8:5 │}aaaaa                                             |
-      {8:6 │}aaaaa                                             |
-      {8:7 │}aaaaa                                             |
-      {8:8 │}^aaaaa                                             |
-      {8:9 │}aaaaa                                             |
-      {8:10│}aaaaa                                             |
-      {8:11│}aaaaa                                             |
-      {8:12│}aaaaa                                             |
-      {8:13│}aaaaa                                             |
-      {8:14│}aaaaa                                             |
-      {8:15│}aaaaa                                             |
-      {8:16│}aaaaa                                             |
-                                                           |
-    ]])
-    command([[set stc=%l%=%{&rnu?'\ ':''}%r│]])
+    screen:expect([[
+      {8: 4 }aaaaa                                             |
+      {8: 5 }aaaaa                                             |
+      {8: 6 }aaaaa                                             |
+      {8: 7 }aaaaa                                             |
+      {8: 8 }^aaaaa                                             |
+      {8: 9 }aaaaa                                             |
+      {8:10 }aaaaa                                             |
+      {8:11 }aaaaa                                             |
+      {8:12 }aaaaa                                             |
+      {8:13 }aaaaa                                             |
+      {8:14 }aaaaa                                             |
+      {8:15 }aaaaa                                             |
+      {8:16 }aaaaa                                             |
+                                                           |
+    ]])
+    command([[set stc=%l\ ]])
     screen:expect_unchanged()
-    command([[set stc=%{&nu?v:lnum:''}%=%{&rnu?'\ '.v:relnum:''}│]])
     command('set relativenumber')
     screen:expect([[
-      {8:4  4│}aaaaa                                           |
-      {8:5  3│}aaaaa                                           |
-      {8:6  2│}aaaaa                                           |
-      {8:7  1│}aaaaa                                           |
-      {8:8  0│}^aaaaa                                           |
-      {8:9  1│}aaaaa                                           |
-      {8:10 2│}aaaaa                                           |
-      {8:11 3│}aaaaa                                           |
-      {8:12 4│}aaaaa                                           |
-      {8:13 5│}aaaaa                                           |
-      {8:14 6│}aaaaa                                           |
-      {8:15 7│}aaaaa                                           |
-      {8:16 8│}aaaaa                                           |
-                                                           |
-    ]])
-    command([[set stc=%l%=%{&rnu?'\ ':''}%r│]])
+      {8: 4 }aaaaa                                             |
+      {8: 3 }aaaaa                                             |
+      {8: 2 }aaaaa                                             |
+      {8: 1 }aaaaa                                             |
+      {8:8  }^aaaaa                                             |
+      {8: 1 }aaaaa                                             |
+      {8: 2 }aaaaa                                             |
+      {8: 3 }aaaaa                                             |
+      {8: 4 }aaaaa                                             |
+      {8: 5 }aaaaa                                             |
+      {8: 6 }aaaaa                                             |
+      {8: 7 }aaaaa                                             |
+      {8: 8 }aaaaa                                             |
+                                                           |
+    ]])
+    command('set stc=')
+    screen:expect_unchanged()
+    command([[set nonu stc=%l\ ]])
+    screen:expect([[
+      {8: 4 }aaaaa                                             |
+      {8: 3 }aaaaa                                             |
+      {8: 2 }aaaaa                                             |
+      {8: 1 }aaaaa                                             |
+      {8: 0 }^aaaaa                                             |
+      {8: 1 }aaaaa                                             |
+      {8: 2 }aaaaa                                             |
+      {8: 3 }aaaaa                                             |
+      {8: 4 }aaaaa                                             |
+      {8: 5 }aaaaa                                             |
+      {8: 6 }aaaaa                                             |
+      {8: 7 }aaaaa                                             |
+      {8: 8 }aaaaa                                             |
+                                                           |
+    ]])
+    command('set nuw=1 stc=')
     screen:expect_unchanged()
-    command([[set stc=%{&nu?v:lnum:''}%=%{&rnu?'\ '.v:relnum:''}│]])
+    -- Correct alignment with items before and after number column
+    command([[set nu stc=foo\ %l\ bar]])
+    screen:expect([[
+      {8:foo  4 bar}aaaaa                                      |
+      {8:foo  3 bar}aaaaa                                      |
+      {8:foo  2 bar}aaaaa                                      |
+      {8:foo  1 bar}aaaaa                                      |
+      {8:foo 8  bar}^aaaaa                                      |
+      {8:foo  1 bar}aaaaa                                      |
+      {8:foo  2 bar}aaaaa                                      |
+      {8:foo  3 bar}aaaaa                                      |
+      {8:foo  4 bar}aaaaa                                      |
+      {8:foo  5 bar}aaaaa                                      |
+      {8:foo  6 bar}aaaaa                                      |
+      {8:foo  7 bar}aaaaa                                      |
+      {8:foo  8 bar}aaaaa                                      |
+                                                           |
+    ]])
   end)
 
   it("works with highlighted 'statuscolumn'", function()
@@ -160,36 +194,36 @@ describe('statuscolumn', function()
     ]])
     command('set relativenumber')
     screen:expect([[
-      {1:4 }{8: 4│}aaaaa                                           |
-      {1:5  3}{8:│}aaaaa                                           |
-      {1:6 }{8: 2│}aaaaa                                           |
-      {1:7  1}{8:│}aaaaa                                           |
-      {1:8 }{8: 0│}^aaaaa                                           |
-      {1:9  1}{8:│}aaaaa                                           |
-      {1:10}{8: 2│}aaaaa                                           |
-      {1:11 3}{8:│}aaaaa                                           |
-      {1:12}{8: 4│}aaaaa                                           |
-      {1:13 5}{8:│}aaaaa                                           |
-      {1:14}{8: 6│}aaaaa                                           |
-      {1:15 7}{8:│}aaaaa                                           |
-      {1:16}{8: 8│}aaaaa                                           |
+      {1:4  }{8: 4│}aaaaa                                          |
+      {1:5   3}{8:│}aaaaa                                          |
+      {1:6  }{8: 2│}aaaaa                                          |
+      {1:7   1}{8:│}aaaaa                                          |
+      {1:8  }{8: 0│}^aaaaa                                          |
+      {1:9   1}{8:│}aaaaa                                          |
+      {1:10 }{8: 2│}aaaaa                                          |
+      {1:11  3}{8:│}aaaaa                                          |
+      {1:12 }{8: 4│}aaaaa                                          |
+      {1:13  5}{8:│}aaaaa                                          |
+      {1:14 }{8: 6│}aaaaa                                          |
+      {1:15  7}{8:│}aaaaa                                          |
+      {1:16 }{8: 8│}aaaaa                                          |
                                                            |
     ]])
     command('set nonumber')
     screen:expect([[
-      {8:4│}aaaaa                                              |
-      {1:3}{8:│}aaaaa                                              |
-      {8:2│}aaaaa                                              |
-      {1:1}{8:│}aaaaa                                              |
-      {8:0│}^aaaaa                                              |
-      {1:1}{8:│}aaaaa                                              |
-      {8:2│}aaaaa                                              |
-      {1:3}{8:│}aaaaa                                              |
-      {8:4│}aaaaa                                              |
-      {1:5}{8:│}aaaaa                                              |
-      {8:6│}aaaaa                                              |
-      {1:7}{8:│}aaaaa                                              |
-      {8:8│}aaaaa                                              |
+      {1: }{8:4│}aaaaa                                             |
+      {1: 3}{8:│}aaaaa                                             |
+      {1: }{8:2│}aaaaa                                             |
+      {1: 1}{8:│}aaaaa                                             |
+      {1: }{8:0│}^aaaaa                                             |
+      {1: 1}{8:│}aaaaa                                             |
+      {1: }{8:2│}aaaaa                                             |
+      {1: 3}{8:│}aaaaa                                             |
+      {1: }{8:4│}aaaaa                                             |
+      {1: 5}{8:│}aaaaa                                             |
+      {1: }{8:6│}aaaaa                                             |
+      {1: 7}{8:│}aaaaa                                             |
+      {1: }{8:8│}aaaaa                                             |
                                                            |
     ]])
   end)
@@ -305,36 +339,36 @@ describe('statuscolumn', function()
     -- v:relnum is the same value on wrapped lines
     command([[set stc=%C%=\ %{v:relnum}│%s\ ]])
     screen:expect([[
-      {2: }{1: 4│>>}{2:  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1: 4│}{2:    }{1: }aaaaaa                                      |
-      {2: }{1: 3│}{0:>!}{2:  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1: 3│}{2:    }{1: }aaaaaa                                      |
-      {2: }{1: 2│}{0:>!}{1:>> }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1: 2│}{2:    }{1: }aaaaaa                                      |
-      {2: }{1: 1│}{2:    }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1: 1│}{2:    }{1: }aaaaaa                                      |
-      {2:+}{4: 0│}{2:    }{4: }{6:^+--  1 line: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa}|
-      {2: }{1: 1│}{2:    }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1: 1│}{2:    }{1: }aaaaaa                                      |
-      {2: }{1: 2│}{2:    }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1: 2│}{2:    }{1: }aaaaaa                                      |
+      {2: }{1:  4│>>}{2:  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:  4│}{2:    }{1: }aaaaaaa                                    |
+      {2: }{1:  3│}{0:>!}{2:  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:  3│}{2:    }{1: }aaaaaaa                                    |
+      {2: }{1:  2│}{0:>!}{1:>> }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:  2│}{2:    }{1: }aaaaaaa                                    |
+      {2: }{1:  1│}{2:    }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:  1│}{2:    }{1: }aaaaaaa                                    |
+      {2:+}{4:  0│}{2:    }{4: }{6:^+--  1 line: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa}|
+      {2: }{1:  1│}{2:    }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:  1│}{2:    }{1: }aaaaaaa                                    |
+      {2: }{1:  2│}{2:    }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:  2│}{2:    }{1: }aaaaaaa                                    |
                                                            |
     ]])
     command([[set stc=%C%=\ %{v:virtnum?'':v:relnum}│%s\ ]])
     screen:expect([[
-      {2: }{1: 4│>>}{2:  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1:  │}{2:    }{1: }aaaaaa                                      |
-      {2: }{1: 3│}{0:>!}{2:  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1:  │}{2:    }{1: }aaaaaa                                      |
-      {2: }{1: 2│}{0:>!}{1:>> }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1:  │}{2:    }{1: }aaaaaa                                      |
-      {2: }{1: 1│}{2:    }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1:  │}{2:    }{1: }aaaaaa                                      |
-      {2:+}{4: 0│}{2:    }{4: }{6:^+--  1 line: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa}|
-      {2: }{1: 1│}{2:    }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1:  │}{2:    }{1: }aaaaaa                                      |
-      {2: }{1: 2│}{2:    }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1:  │}{2:    }{1: }aaaaaa                                      |
+      {2: }{1:  4│>>}{2:  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:   │}{2:    }{1: }aaaaaaa                                    |
+      {2: }{1:  3│}{0:>!}{2:  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:   │}{2:    }{1: }aaaaaaa                                    |
+      {2: }{1:  2│}{0:>!}{1:>> }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:   │}{2:    }{1: }aaaaaaa                                    |
+      {2: }{1:  1│}{2:    }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:   │}{2:    }{1: }aaaaaaa                                    |
+      {2:+}{4:  0│}{2:    }{4: }{6:^+--  1 line: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa}|
+      {2: }{1:  1│}{2:    }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:   │}{2:    }{1: }aaaaaaa                                    |
+      {2: }{1:  2│}{2:    }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:   │}{2:    }{1: }aaaaaaa                                    |
                                                            |
     ]])
     -- Up to 9 signs in a line
@@ -347,75 +381,75 @@ describe('statuscolumn', function()
     command('sign place 10 line=6 name=piet2 buffer=1')
     command('sign place 11 line=6 name=piet1 buffer=1')
     screen:expect([[
-      {2: }{1: 4│>>}{2:                }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1:  │}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaa          |
-      {2: }{1: 3│}{0:>!}{2:                }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1:  │}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaa          |
-      {2: }{1: 2│>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>> }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1:  │}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaa          |
-      {2: }{1: 1│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1:  │}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaa          |
-      {2:+}{4: 0│}{2:                  }{4: }{6:^+--  1 line: aaaaaaaaaaaaaaaaa}|
-      {2: }{1: 1│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1:  │}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaa          |
-      {2: }{1: 2│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2: }{1:  │}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaa          |
+      {2: }{1:  4│>>}{2:                }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:   │}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaa        |
+      {2: }{1:  3│}{0:>!}{2:                }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:   │}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaa        |
+      {2: }{1:  2│>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>> }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:   │}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaa        |
+      {2: }{1:  1│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:   │}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaa        |
+      {2:+}{4:  0│}{2:                  }{4: }{6:^+--  1 line: aaaaaaaaaaaaaaaa}|
+      {2: }{1:  1│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:   │}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaa        |
+      {2: }{1:  2│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2: }{1:   │}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaa        |
                                                            |
     ]])
     -- Also test fold and sign column when 'cpoptions' includes "n"
     command('set cpoptions+=n')
     feed('Hgjg0')
     screen:expect([[
-      {2: }{4: 0│}{1:>>}{2:                }{4: }{5:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa}|
-      {2:                   }{5:^aaaaaaaaaaaaaaaaaaaa              }|
-      {2: }{1: 3│}{0:>!}{2:                }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2:                   }aaaaaaaaaaaaaaaaaaaa              |
-      {2: }{1: 2│>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>> }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2:                   }aaaaaaaaaaaaaaaaaaaa              |
-      {2: }{1: 1│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2:                   }aaaaaaaaaaaaaaaaaaaa              |
-      {2:+}{1: 4│}{2:                  }{1: }{3:+--  1 line: aaaaaaaaaaaaaaaaa}|
-      {2: }{1: 1│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2:                   }aaaaaaaaaaaaaaaaaaaa              |
-      {2: }{1: 2│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2:                   }aaaaaaaaaaaaaaaaaaaa              |
+      {2: }{4:  0│}{1:>>}{2:                }{4: }{5:aaaaaaaaaaaaaaaaaaaaaaaaaaaaa}|
+      {2:                   }{5:^aaaaaaaaaaaaaaaaaaaaa             }|
+      {2: }{1:  3│}{0:>!}{2:                }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2:                   }aaaaaaaaaaaaaaaaaaaaa             |
+      {2: }{1:  2│>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>> }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2:                   }aaaaaaaaaaaaaaaaaaaaa             |
+      {2: }{1:  1│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2:                   }aaaaaaaaaaaaaaaaaaaaa             |
+      {2:+}{1:  4│}{2:                  }{1: }{3:+--  1 line: aaaaaaaaaaaaaaaa}|
+      {2: }{1:  1│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2:                   }aaaaaaaaaaaaaaaaaaaaa             |
+      {2: }{1:  2│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2:                   }aaaaaaaaaaaaaaaaaaaaa             |
                                                            |
     ]])
     command('set breakindent')
     command('sign unplace 2')
     feed('J2gjg0')
     screen:expect([[
-      {2: }{4: 0│}{1:>>}{2:                }{4: }{5:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa}|
-      {2:                   }    {5:aaaaaaaaaaaaaaaaaaaa aaaaaaaaa}|
-      {2:                   }    {5:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa}|
-      {2:                   }    {5:^aaaaaaaaaaa                   }|
-      {2: }{1: 1│>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>> }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2:                   }    aaaaaaaaaaaaaaaaaaaa          |
-      {2: }{1: 2│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2:                   }    aaaaaaaaaaaaaaaaaaaa          |
-      {2:+}{1: 3│}{2:                  }{1: }{3:+--  1 line: aaaaaaaaaaaaaaaaa}|
-      {2: }{1: 4│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2:                   }    aaaaaaaaaaaaaaaaaaaa          |
-      {2: }{1: 5│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2:                   }    aaaaaaaaaaaaaaaaaaaa          |
+      {2: }{4:  0│}{1:>>}{2:                }{4: }{5:aaaaaaaaaaaaaaaaaaaaaaaaaaaaa}|
+      {2:                   }     {5:aaaaaaaaaaaaaaaaaaaaa aaaaaaa}|
+      {2:                   }     {5:aaaaaaaaaaaaaaaaaaaaaaaaaaaaa}|
+      {2:                   }     {5:^aaaaaaaaaaaaaa               }|
+      {2: }{1:  1│>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>> }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2:                   }     aaaaaaaaaaaaaaaaaaaaa        |
+      {2: }{1:  2│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2:                   }     aaaaaaaaaaaaaaaaaaaaa        |
+      {2:+}{1:  3│}{2:                  }{1: }{3:+--  1 line: aaaaaaaaaaaaaaaa}|
+      {2: }{1:  4│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2:                   }     aaaaaaaaaaaaaaaaaaaaa        |
+      {2: }{1:  5│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2:                   }     aaaaaaaaaaaaaaaaaaaaa        |
                                                            |
     ]])
     command('set nobreakindent')
     feed('$g0')
     screen:expect([[
-      {2: }{4: 0│}{1:>>}{2:                }{4: }{5:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa}|
-      {2:                   }{5:aaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaa}|
+      {2: }{4:  0│}{1:>>}{2:                }{4: }{5:aaaaaaaaaaaaaaaaaaaaaaaaaaaaa}|
+      {2:                   }{5:aaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaa}|
       {2:                   }{5:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa}|
-      {2:                   }{5:^aaa                               }|
-      {2: }{1: 1│>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>> }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2:                   }aaaaaaaaaaaaaaaaaaaa              |
-      {2: }{1: 2│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2:                   }aaaaaaaaaaaaaaaaaaaa              |
-      {2:+}{1: 3│}{2:                  }{1: }{3:+--  1 line: aaaaaaaaaaaaaaaaa}|
-      {2: }{1: 4│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2:                   }aaaaaaaaaaaaaaaaaaaa              |
-      {2: }{1: 5│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
-      {2:                   }aaaaaaaaaaaaaaaaaaaa              |
+      {2:                   }{5:^aaaa                              }|
+      {2: }{1:  1│>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>>}{0:>!}{1:>> }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2:                   }aaaaaaaaaaaaaaaaaaaaa             |
+      {2: }{1:  2│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2:                   }aaaaaaaaaaaaaaaaaaaaa             |
+      {2:+}{1:  3│}{2:                  }{1: }{3:+--  1 line: aaaaaaaaaaaaaaaa}|
+      {2: }{1:  4│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2:                   }aaaaaaaaaaaaaaaaaaaaa             |
+      {2: }{1:  5│}{2:                  }{1: }aaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
+      {2:                   }aaaaaaaaaaaaaaaaaaaaa             |
                                                            |
     ]])
     command('silent undo')
@@ -427,7 +461,23 @@ describe('statuscolumn', function()
         virt_lines_above = true, virt_lines = {{{"virt_line above", ""}}} })
       vim.api.nvim_buf_set_extmark(0, ns, 4, 0, { virt_lines = {{{"virt_line", ""}}} })
     ]])
-    command('set foldcolumn=0 signcolumn=no')
+    command('set foldcolumn=0 signcolumn=number stc=%l')
+    screen:expect([[
+      {1:>>}aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
+      {1: 5}aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
+      {1:  }virt_line                                          |
+      {1:  }virt_line above                                    |
+      {1:>>}aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
+      {1: 7}aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
+      {4: 8}{6:^+--  1 line: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa}|
+      {1: 9}aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
+      {1:10}aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
+      {1:11}aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
+      {1:12}aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
+      {1:13}aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
+      {1:14}aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
+                                                           |
+    ]])
     command(
       [[set stc=%{v:virtnum<0?'virtual':(!v:virtnum?'buffer':'wrapped')}%=%{'\ '.v:virtnum.'\ '.v:lnum}]]
     )
@@ -533,8 +583,8 @@ describe('statuscolumn', function()
     command([[set stc=%6s\ %l]])
     exec_lua('vim.api.nvim_buf_set_extmark(0, ns, 7, 0, {sign_text = "𒀀"})')
     screen:expect([[
-      {8:    𒀀  8 }^aaaaa                                       |
-      {8:    }{7:  }{8: 9 }aaaaa                                       |
+      {8:    𒀀   8}^aaaaa                                       |
+      {8:    }{7:  }{8:  9}aaaaa                                       |
                                                            |
     ]])
   end)
@@ -644,26 +694,26 @@ describe('statuscolumn', function()
         -- clicking an item does not drag mouse
         api.nvim_input_mouse('left', 'press', '', 0, 0, 0)
         screen:expect([[
-          {0:8 }^aaaaa                                              |
+          {0: 8}^aaaaa                                              |
            {1: Echo }                                              |
         ]])
         api.nvim_input_mouse('left', 'press', '', 0, 1, 5)
         api.nvim_input_mouse('left', 'release', '', 0, 1, 5)
         screen:expect([[
-          {0:8 }^aaaaa                                              |
+          {0: 8}^aaaaa                                              |
           0 1 l 8                                              |
         ]])
         command('echo')
         -- clicking outside to close the menu does not drag mouse
         api.nvim_input_mouse('left', 'press', '', 0, 0, 0)
         screen:expect([[
-          {0:8 }^aaaaa                                              |
+          {0: 8}^aaaaa                                              |
            {1: Echo }                                              |
         ]])
         api.nvim_input_mouse('left', 'press', '', 0, 0, 10)
         api.nvim_input_mouse('left', 'release', '', 0, 0, 10)
         screen:expect([[
-          {0:8 }^aaaaa                                              |
+          {0: 8}^aaaaa                                              |
                                                                |
         ]])
       end)
@@ -749,9 +799,9 @@ describe('statuscolumn', function()
   it('works with cmdwin', function()
     feed(':set stc=%l<CR>q:k$')
     screen:expect([[
-      {8:7 }aaaaa                                              |
-      {8:8 }aaaaa                                              |
-      {8:9 }aaaaa                                              |
+      {8: 7}aaaaa                                              |
+      {8: 8}aaaaa                                              |
+      {8: 9}aaaaa                                              |
       {8:10}aaaaa                                              |
       {2:[No Name] [+]                                        }|
       {1::}{8:1}set stc=%^l                                         |
@@ -899,16 +949,16 @@ describe('statuscolumn', function()
     command([[set spell stc=%l\ ]])
     command('call setline(8, "This is a line that contains ᶏ multibyte character.")')
     screen:expect([[
-      {8:8  }^This is a line that contains {31:ᶏ}|
+      {8: 8 }^This is a line that contains {31:ᶏ}|
       {8:   } {31:multibyte} character.         |
-      {8:9  }{31:aaaaa}                         |
+      {8: 9 }{31:aaaaa}                         |
                                        |
     ]])
   end)
 
   it('line increase properly redraws buffer text with relativenumber #27709', function()
     screen:try_resize(33, 4)
-    command([[set rnu nuw=3 stc=%l\ ]])
+    command([[set rnu nuw=3 stc=%{v:lnum}\  ]])
     command('call setline(1, range(1, 99))')
     feed('Gyyp')
     screen:expect([[