nvim-config/lua/user/keymaps.lua

-- changed silent to false, b/c for now I have the space for it,
-- and prefer verbosity!
local opts = { noremap = true, silent = false }

-- Terminal options for.
local term_opts = { silent = true }

-- Shorten function name.
local keymap = vim.api.nvim_set_keymap

--Re-map space as leader key.
--I already did this on vim & neovim(init.vim).
keymap("", "<Space>", "<Nop>", opts)
vim.g.mapleader = " "
vim.g.maplocalleader = " "

-- Modes
--   normal_mode = "n",
--   insert_mode = "i",
--   visual_mode = "v",
--   visual_block_mode = "x",
--   term_mode = "t",
--   command_mode = "c",

-- Normal --
-- Better window navigation
-- Exactly what I would have done...
keymap("n", "<C-h>", "<C-w>h", opts)
keymap("n", "<C-j>", "<C-w>j", opts)
keymap("n", "<C-k>", "<C-w>k", opts)
keymap("n", "<C-l>", "<C-w>l", opts)

-- Toggle NetRW Plugin for now...
keymap("n", "<leader>e", ":Lex 30<cr>", opts)

-- Resize with with Ctrl-Up/Down/Left/Right.
-- Tweaked slightly like on the Video-series.
keymap("n", "<C-Up>", ":resize +2<CR>", opts)
keymap("n", "<C-Down>", ":resize -2<CR>", opts)
keymap("n", "<C-Left>", ":vertical resize +2<CR>", opts)
keymap("n", "<C-Right>", ":vertical resize -2<CR>", opts)

-- Navigate buffers.
-- I like changing buffers this way,
-- b/c I was running into problems w/ Ctrl-f/b.
keymap("n", "<S-l>", ":bnext<CR>", opts)
keymap("n", "<S-h>", ":bprevious<CR>", opts)

-- Insert --
-- Press jk fast to enter Normal-mode, from Insert-mode.
keymap("i", "jk", "<ESC>", opts)

-- Visual --
-- Stay in indent mode.
-- I like this idea.
keymap("v", "<", "<gv", opts)
keymap("v", ">", ">gv", opts)

-- Move text highlights up & down.
keymap("v", "<A-j>", ":m .+1<CR>==", opts)
keymap("v", "<A-k>", ":m .-2<CR>==", opts)
keymap("v", "p", '"_dP', opts)
-- Subltle change, but if you paste over a visual selection;
-- Now it won't put what you pasted over into the 2-be-pasted-next buffer. 

-- Visual Block --
-- Move full lines Up/Down.
keymap("x", "J", ":move '>+1<CR>gv-gv", opts)
keymap("x", "K", ":move '<-2<CR>gv-gv", opts)
keymap("x", "<A-j>", ":move '>+1<CR>gv-gv", opts)
keymap("x", "<A-k>", ":move '<-2<CR>gv-gv", opts)

--"############################
--"# leader-mappings section: #
--"############################
  keymap( "n", "<leader>top", ":set paste<CR>", opts)  -- Turn special pasting on ONLY when needed.

--"################################################################
--"# Toggle highlight searching.                                  #
--"# Map nh to toggle off the search highlighting in Normal mode. #
--"################################################################
  keymap( "n", "<leader>nh", ":nohl<CR>", opts)

-- Terminal --
-- Better terminal navigation... ???
-- This is the ONLY block I am not sure if I want to include in my config,
-- b/c I don't understand what it does; so I'll disable it for now...
-- keymap("t", "<C-h>", "<C-\\><C-N><C-w>h", term_opts)
-- keymap("t", "<C-j>", "<C-\\><C-N><C-w>j", term_opts)
-- keymap("t", "<C-k>", "<C-\\><C-N><C-w>k", term_opts)
-- keymap("t", "<C-l>", "<C-\\><C-N><C-w>l", term_opts)