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read -r in ksh93 will leave the \n as they are. You can then use echo (or printf) to translate them to the correct character:

$ echo 'Programmer\\ntest' | read -r line rest
$ set | grep line ...

This might help you ....

Extracted from a blog post KSH93 Custom Builtins II (http://blog.fpmurphy.com/2008/12/korn-shell-93-custom-builtins-ii.html) I wrote a couple of years ago:

Example 5 ...

Some years ago I wrote a few ksh93 builtins. One of them can manipulate the PATH variable and similar ones (like MANPATH, etc). I haven't used it for some time now, so I am not sure, if it still...