[aerique]

Strings are sequences and functions that work on sequences work on strings as well. So getting substrings etc. is all possible.

I've had very little problems operating on strings in Common Lisp (all I missed was starts-with and ends-with functions), could you give some concrete examples so that I might help you?

[negativeview]

I can't now because it was years ago I was having problems. I'm starting to think that it was a different Lisp and not Common Lisp I was looking at, too. Too long ago to remember for sure.