basics

plugin/keymap.lua

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+-- define common options
+local opts = {
+    noremap = true,      -- non-recursive
+    silent = true,       -- do not show message
+}
+local map = vim.keymap.set
+
+vim.g.mapleader = ' '
+-----------------
+-- Normal mode --
+-----------------
+
+-- Hint: see `:h vim.map.set()`
+-- Better window navigation
+map('n', '<leader>wh', '<C-w>h', opts)
+map('n', '<leader>wj', '<C-w>j', opts)
+map('n', '<leader>wk', '<C-w>k', opts)
+map('n', '<leader>wl', '<C-w>l', opts)
+
+local step_size = 4
+map('n', '<leader>wJ', ':resize -'.. step_size ..'<CR>', opts)
+map('n', '<leader>wK', ':resize +'.. step_size ..'<CR>', opts)
+map('n', '<leader>wH', ':vertical resize -'.. step_size ..'<CR>', opts)
+map('n', '<leader>wL', ':vertical resize +'.. step_size ..'<CR>', opts)
+
+map('n', '<leader>wn', ':windo new<CR>', opts)
+map('n', '<leader>wc', ':close<CR>', opts)
+
+-- tab management
+map('n', '<tab>', ':tabnext<CR>', opts)
+map('n', '<leader>x', ':tabclose<CR>', opts)
+map('n', '<leader>s', ':$tab split<CR>', opts)
+
+
+-----------------
+-- Visual mode --
+-----------------
+
+--vim.keymap.set('v', '<', '<gv', opts)
+--vim.keymap.set('v', '>', '>gv', opts)