nvim: refactor cmds into commands

.config/nvim/plugin/autocommands.lua

@@ -0,0 +1,29 @@
+vim.api.nvim_create_autocmd("TextYankPost", {
+    group = vim.api.nvim_create_augroup("Visual", {}),
+    callback = function()
+        vim.highlight.on_yank {
+            higroup = "IncSearch",
+            timeout = 100,
+        }
+    end,
+})
+
+vim.api.nvim_create_autocmd("OptionSet", {
+    pattern = "shiftwidth",
+    callback = function()
+        if vim.o.expandtab then
+            local c = ""
+            for _ = c:len(), vim.o.shiftwidth + 1 do
+                c = c .. " "
+            end
+            return vim.opt.lcs:append("leadmultispace:" .. c)
+        else
+            return nil
+        end
+    end,
+})
+
+vim.api.nvim_create_autocmd("OptionSet", {
+    pattern = "textwidth",
+    callback = function() vim.wo.colorcolumn = tostring(vim.bo.textwidth) end,
+})