Converting XML to escaped text in XSLT

Question

How can I convert the following XML to an escaped text using XSLT?

Source:

Answer 1

Do you need to use XSLT? Because, for reasons explained by Pavel Minaev, it would be much simpler to use another tool. An example with xmlstartlet:

% xmlstarlet escape


  
    mnop
  

[Control-D]
<?xml version="1.0" encoding="utf-8"?>
<abc>
  <def ghi="jkl">
    mnop
  </def>
</abc>