Vim indent xml file

Question

I am learning Vim but I thought this was a simple task but I cannot get it to work. I have browser SO but the solutions are not working for me.

I am trying to correc

Answer 1

for those one which is using coc.nvim plugin, you can install coc-xml by :CocInstall coc-xml , then mapping format key in your config file: nmap fm (coc-format). From now on, you can format not only xml file but other file very easy