Re: How to replace each character in string with chracter x?

How about this?
%s/<\zs.\{-}\ze>/\=repeat('x',strchars(submatch(0)))/g

If you do not use multibyte characters, you can use strlen() or len() instead of strchars().

--
--
You received this message from the "vim_use" maillist.
Do not top-post! Type your reply below the text you are replying to.
For more information, visit http://www.vim.org/maillist.php

---
You received this message because you are subscribed to the Google Groups "vim_use" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vim_use+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.