Word highlighting, lsp_signature, calendar and settings / keybindings

Plugins:

- added word highlighting plugin mywords
- added lsp_signature plugin to show parameter signature while typing a
  function call
- added calendar.vim
- added lush.nvim needed for some theme definitions, though not for the
  nice and current default lunaperche

Keybindings:

- <space>m[mrc] for mywords
- <C-W>0 and <C-W>1 for window close / make single
- <C-,> for lsp references
- <C-.> for lsp definitions

Options:

- highlight last search term
- add I to shortmess to start with an empty file instead of splash
  screen
- fzf uses default-title as theme
- fzf registered as vim.ui.select implementation
- which_key shows global definitions, too

lua/keybindings.lua

@@ -1,4 +1,4 @@
--- Setup fzf-lua keybindings
+-- Setup fzf-lua keybindings and some other searches
 local fzf = require('fzf-lua')
 vim.keymap.set('n', '<leader>ff', fzf.files, { desc = "Find file" })
 vim.keymap.set('n', '<leader>fs', fzf.blines, { desc = "Search buffer" })
@@ -43,3 +43,22 @@ workspaces_fzf_picker = function(opts)
     end, opts)
 end
 vim.keymap.set('n', '<leader>w', workspaces_fzf_picker, { desc = "Workspaces" } )
+
+------------------------------------------ 
+-- 
+-- Word higlighting
+--
+------------------------------------------ 
+local mywords = require('mywords')
+vim.keymap.set('n', '<space>mm', mywords.hl_toggle, { desc = "Highlight current word" })
+vim.keymap.set('n', '<space>mr', mywords.hl_toggle_regex, { desc = "Highlight regexp" })
+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>1', ":wincmd o<CR>", { desc = "Win: close others" })
+vim.keymap.set('n', '<C-W>0', ":only<CR>", { desc = "Win: close current" })

lua/lsp.lua

@@ -25,8 +25,9 @@ require('mason-lspconfig').setup({
 -- Customized on_attach function
 -- See `:help vim.diagnostic.*` for documentation on any of the below functions
 local opts = { noremap = true, silent = true }
-vim.keymap.set('n', '<space>e', vim.diagnostic.open_float, opts)
-vim.keymap.set('n', '<space>q', vim.diagnostic.setloclist, opts)
+vim.keymap.set('n', '<space>e', vim.diagnostic.open_float, { noremap = true, silent = true, desc = "Popup diagnostics" })
+-- 2024-09-23 - currently unused
+-- vim.keymap.set('n', '<space>q', vim.diagnostic.setloclist, opts)
 vim.keymap.set('n', '[d', vim.diagnostic.goto_prev, opts)
 vim.keymap.set('n', ']d', vim.diagnostic.goto_next, opts)
 
@@ -58,13 +59,13 @@ local on_attach = function(client, bufnr)
   -- 2024-09-09 - some ccflow commands
 
   local fzf = require('fzf-lua')
-  vim.keymap.set('n', '<space>d', fzf.diagnostics_document, { desc = "Doc diagnostics" })
+  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>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', 'gr', vim.lsp.buf.references, bufopts)
-  vim.keymap.set('n', '<C-[>', fzf.lsp_references, { desc = "Find References" })
-  vim.keymap.set('n', '<C-]>', fzf.lsp_definitions, { desc = "Find References" })
+  vim.keymap.set('n', '<C-,>', fzf.lsp_references, { desc = "Find References" })
+  vim.keymap.set('n', '<C-.>', fzf.lsp_definitions, { desc = "Find References" })
 end
 
 -- Set different settings for different languages' LSP

lua/options.lua

@@ -27,7 +27,7 @@ vim.opt.showmode = false       -- we are experienced, wo don't need the "-- INSE
 
 -- Searching
 vim.opt.incsearch = true  -- search as characters are entered
-vim.opt.hlsearch = false  -- do not highlight matches
+vim.opt.hlsearch = true   -- do not highlight matches
 vim.opt.ignorecase = true -- ignore case in searches by default
 vim.opt.smartcase = true  -- but make it case sensitive if an uppercase is entered
 
@@ -45,3 +45,11 @@ vim.opt.wrap = false
 -- Spelling
 vim.opt.spell = true
 vim.opt.spelllang = "de,en"
+
+--------------------------------------------------
+--
+-- Other options
+--
+--------------------------------------------------
+
+vim.opt.shortmess = vim.opt.shortmess + 'I'

lua/plugins.lua

@@ -43,10 +43,19 @@ require("lazy").setup({
     end,
   },
 
-  -- LSP manager
+  --
+  -- LSP manager and others
+  --
   "williamboman/mason.nvim",
   "williamboman/mason-lspconfig.nvim",
   "neovim/nvim-lspconfig",
+  -- show lsp signature while coding
+  {
+    "ray-x/lsp_signature.nvim",
+    event = "VeryLazy",
+    opts = {},
+    config = function(_, opts) require 'lsp_signature'.setup(opts) end
+  },
 
   -- neogit setup
   {
@@ -90,7 +99,9 @@ require("lazy").setup({
     dependencies = { "nvim-tree/nvim-web-devicons" },
     config = function()
       -- calling `setup` is optional for customization
-      require("fzf-lua").setup({})
+      local fzf = require("fzf-lua")
+      fzf.setup({ "default-title" })
+      fzf.register_ui_select()
     end
   },
 
@@ -119,7 +130,7 @@ require("lazy").setup({
       {
         "<leader>?",
         function()
-          require("which-key").show({ global = false })
+          require("which-key").show({ global = true })
         end,
         desc = "Buffer Local Keymaps (which-key)",
       },
@@ -247,4 +258,25 @@ require("lazy").setup({
       -- refer to the configuration section below
     }
   },
+
+  -- highlight word under cursor
+  {
+    "dwrdx/mywords.nvim",
+  },
+
+  -- Calendar view
+  {
+    "itchyny/calendar.vim"
+  },
+
+  --------------------------------------------------
+  --
+  -- Color schemes
+  --
+  --------------------------------------------------
+  {
+    "rktjmp/lush.nvim"
+    -- if you wish to use your own colorscheme:
+    -- { dir = '/absolute/path/to/colorscheme', lazy = true },
+  },
 })