Instead of the interactive mode there should be a silent non-stop mode that simply wraps any suspicious word within the text with a Tag like [ASPELL]susbicious[/ASPELL] (or surrounds it by some prefix and suffix that the user can define).
Even better: you could include the suggestions within the opening tag, like:
[ASPELL suggests="suspicious, auspicious, suspicions, suspiciously, suspicion's, suspicion, sebaceous" count="7"]susbicious[/ASPELL]
Well, and write the "markuped" file back to disk, or to the specified destination.
Thanks in advance!