Moving to neovim 0.11, new calc, keys streamlined

Keybindings:

- <space>E (explain error) now is <space>x
- dropped <C-W>0 and following, were remainders from Emacs
- insert: <C-Del> now deletes word right of cursor

LSP:

- diagnostics popup replaced with neovim 0.11 virtual lines (much nicer)

Options:

- neo-tree width dropped, was too wide
- workspaces no longer auto open, was interfering with using neovim as
  git client or file manager

Plugins:

- replaced cmp-rpncalc with qalc.nvim (which uses the qalc cli)

after/ftplugin/rust.lua

@@ -2,7 +2,7 @@ local bufnr = vim.api.nvim_get_current_buf()
 
 vim.keymap.set(
   "n",
-  "<space>E",
+  "<space>x",
   function()
     vim.cmd.RustLsp({ 'explainError', 'current' })
   end,

lua/config/nvim-cmp.lua

@@ -89,11 +89,8 @@ cmp.setup({
     { name = 'luasnip' },  -- For luasnip user
     { name = 'buffer' },   -- For buffer word completion
     { name = 'path' },     -- For path completion
-    { name = 'rpncalc' },  -- for RPN calculations
     { name = 'orgmode' },  -- for nvim-orgmode
     { name = 'sonicpi' },  -- for sonic-pi integration
+    { name = 'calc' },     -- for calulcator
   })
 })
-
-
-

lua/keybindings.lua

@@ -77,12 +77,9 @@ vim.keymap.set('n', '<space>mc', mywords.uhl_all, { desc = "Clear all highlights
 -- Shortcuts which are known from Emacs
 --
 ------------------------------------------
-vim.keymap.set('n', '<C-W>0', ":hide<CR>", { desc = "Win: close current" })
-vim.keymap.set('n', '<C-W>1', ":only<CR>", { desc = "Win: close others" })
-vim.keymap.set('n', '<C-W>2', ":split<CR>", { desc = "Win: split horizontally" })
-vim.keymap.set('n', '<C-W>2', ":vsplit<CR>", { desc = "Win: split vertically" })
 vim.keymap.set('n', '<space>q', "gwap", { desc = "Wrap paragraph" })
 vim.keymap.set('n', '<esc><esc>', ":silent! nohls<CR>", { desc = "Clear search" })
+vim.keymap.set('i', '<c-Del>', '<c-o>dW', {desc = "Delete word right" })
 
 -- horizontally scroll with mouse
 vim.keymap.set('n', '<S-ScrollWheelUp>', 'zh')

lua/lsp.lua

@@ -57,7 +57,11 @@ local on_attach = function(client, bufnr)
   local fzf = require('fzf-lua')
   vim.keymap.set('n', '<space>d', fzf.diagnostics_document, { desc = "Document diagnostics" })
   vim.keymap.set('n', '<space>D', fzf.diagnostics_workspace, { desc = "Workspace diagnostics" })
-  vim.keymap.set('n', '<space>e', vim.diagnostic.open_float, { desc = "Popup diagnostics" })
+  -- vim.keymap.set('n', '<space>E', vim.diagnostic.open_float, { desc = "Popup diagnostics" })
+  vim.keymap.set('n', '<space>e', function()
+    local new_config = not vim.diagnostic.config().virtual_lines
+    vim.diagnostic.config({ virtual_lines = new_config })
+  end, { desc = "Virtual line diagnostics" })
   vim.keymap.set('n', '<space>s', fzf.lsp_document_symbols, { desc = "Doc symbols" })
   vim.keymap.set('n', '<space>c', fzf.lsp_code_actions, { desc = "Code Actions" })
   vim.keymap.set('n', '<space>[', vim.diagnostic.goto_prev, { desc = "Previous diagnostics" })

lua/plugins.lua

@@ -290,7 +290,6 @@ require("lazy").setup({
       require("neo-tree").setup({
         window = {
           position = "left",
-          width = 60,
           mappings = {
             ["<tab>"] = {
               "toggle_node",
@@ -324,7 +323,7 @@ require("lazy").setup({
         mru_sort = false,
 
         -- option to automatically activate workspace when opening neovim in a workspace directory
-        auto_open = true,
+        auto_open = false,
 
         -- option to automatically activate workspace when changing directory not via this plugin
         auto_dir = true,
@@ -336,12 +335,22 @@ require("lazy").setup({
     end
   },
 
-  -- rpn calculator
+  -- calulcation in cmp
-  -- also added as source to cmp
   {
-    "PhilRunninger/cmp-rpncalc",
+    "hrsh7th/cmp-calc",
   },
 
+  -- calculate using qalc cli, call :QalcAttach or :Qalc
+  {
+    "Apeiros-46B/qalc.nvim",
+    config = function()
+      require('qalc').setup({
+        bufname = "Qalculate",
+      })
+    end,
+  },
+
+
   -- TODO, WARN, HACK, PERF, NOTE, TEST and others highlighting and searching
   {
     "folke/todo-comments.nvim",