[R] Python difflib R equivalent?

[Paul]

Hi,

Does anyone know of a R library that is equivalent in functionality to
the Python standard libraries' difflib library? The python docs say
this about difflib:

"This module provides classes and functions for comparing sequences.
It can be used for example, for comparing files, and can produce
difference information in various formats, including HTML and context
and unified diffs."

http://docs.python.org/library/difflib.html

Thanks,

Paul