nvim: add support for hex editing

.config/nvim/lua/settings.lua

@@ -81,7 +81,21 @@ vim.cmd [[
    vnoremap J :m '>+1<CR>gv=gv
    vnoremap K :m '<-2<CR>gv=gv
 
-colorscheme slate
+  " Make vim a hex editor
+  " Edit *.bin files as binaries rather than text files (if your file isn't a .bin,
+  " make a symlink that points to it with the .bin extension and edit the symlink ;)
+	augroup Binary
+	   au!
+	   au BufReadPre  *.bin let &bin=1
+	   au BufReadPost *.bin if &bin | %!xxd
+	   au BufReadPost *.bin set ft=xxd | endif
+	   au BufWritePre *.bin if &bin | %!xxd -r
+	   au BufWritePre *.bin endif
+	   au BufWritePost *.bin if &bin | %!xxd
+	   au BufWritePost *.bin set nomod | endif
+	augroup END
+
+   colorscheme slate
 ]]
 
 vim.cmd [[