paste: Select-mode, Visual-mode neovim#11360

fix neovim#11344

Author: justinmk

src/nvim/api/vim.c

@@ -1266,7 +1266,7 @@ Boolean nvim_paste(String data, Boolean crlf, Integer phase, Error *err)
     draining = true;
     goto theend;
   }
-  if (!(State & CMDLINE) && !(State & INSERT) && (phase == -1 || phase == 1)) {
+  if (!(State & (CMDLINE | INSERT)) && (phase == -1 || phase == 1)) {
     ResetRedobuff();
     AppendCharToRedobuff('a');  // Dot-repeat.
   }
@@ -1284,7 +1284,7 @@ Boolean nvim_paste(String data, Boolean crlf, Integer phase, Error *err)
       }
     }
   }
-  if (!(State & CMDLINE) && !(State & INSERT) && (phase == -1 || phase == 3)) {
+  if (!(State & (CMDLINE | INSERT)) && (phase == -1 || phase == 3)) {
     AppendCharToRedobuff(ESC);  // Dot-repeat.
   }
 theend:

src/nvim/lua/vim.lua

@@ -192,8 +192,11 @@ paste = (function()
       local line1 = lines[1]:gsub('<', '<lt>'):gsub('[\r\n\012\027]', ' ')  -- Scrub.
       vim.api.nvim_input(line1)
       vim.api.nvim_set_option('paste', false)
-    elseif mode ~= 'c' then  -- Else: discard remaining cmdline-mode chunks.
-      if phase < 2 and mode ~= 'i' and mode ~= 'R' and mode ~= 't' then
+    elseif mode ~= 'c' then
+      if phase < 2 and mode:find('^[vV\22sS\19]') then
+        vim.api.nvim_command([[exe "normal! \<Del>"]])
+        vim.api.nvim_put(lines, 'c', false, true)
+      elseif phase < 2 and not mode:find('^[iRt]') then
         vim.api.nvim_put(lines, 'c', true, true)
         -- XXX: Normal-mode: workaround bad cursor-placement after first chunk.
         vim.api.nvim_command('normal! a')

test/functional/terminal/tui_spec.lua

@@ -306,6 +306,49 @@ describe('TUI', function()
     expect_child_buf_lines({''})
   end)
 
+  it('paste: select-mode', function()
+    feed_data('ithis is line 1\nthis is line 2\nline 3 is here\n\027')
+    wait_for_mode('n')
+    screen:expect{grid=[[
+      this is line 1                                    |
+      this is line 2                                    |
+      line 3 is here                                    |
+      {1: }                                                 |
+      {5:[No Name] [+]                                     }|
+                                                        |
+      {3:-- TERMINAL --}                                    |
+    ]]}
+    -- Select-mode. Use <C-n> to move down.
+    feed_data('gg04lgh\14\14')
+    wait_for_mode('s')
+    feed_data('\027[200~')
+    feed_data('just paste it™')
+    feed_data('\027[201~')
+    screen:expect{grid=[[
+      thisjust paste it™{1:3} is here                       |
+                                                        |
+      {4:~                                                 }|
+      {4:~                                                 }|
+      {5:[No Name] [+]                                     }|
+                                                        |
+      {3:-- TERMINAL --}                                    |
+    ]]}
+    -- Undo.
+    feed_data('u')
+    expect_child_buf_lines{
+      'this is line 1',
+      'this is line 2',
+      'line 3 is here',
+      '',
+      }
+    -- Redo.
+    feed_data('\18')  -- <C-r>
+    expect_child_buf_lines{
+      'thisjust paste it™3 is here',
+      '',
+      }
+  end)
+
   it('paste: terminal mode', function()
     feed_data(':set statusline=^^^^^^^\n')
     feed_data(':terminal '..nvim_dir..'/tty-test\n')
@@ -539,7 +582,7 @@ describe('TUI', function()
                                                         |
       {4:~                                                 }|
       {5:                                                  }|
-      {8:paste: Error executing lua: vim.lua:197: Vim:E21: }|
+      {8:paste: Error executing lua: vim.lua:200: Vim:E21: }|
       {8:Cannot make changes, 'modifiable' is off}          |
       {10:Press ENTER or type command to continue}{1: }          |
       {3:-- TERMINAL --}                                    |