Using vim-surround for markdown

Question

Is it possible to use vim plugin vim-surround to wrap markdown?

For example I have code I would like to wrap

# ruby code here

with

```Ruby
# ruby code here
```

Answer 1

Add the following to your ~/.vim/after/ftplugin/markdown.vim file:

let b:surround_{char2nr('r')} = "```Ruby\r```"

Select your lines of code via V then surround via Sr.