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["Paul J. Lucas" <paul@xxxxxxxxxxxxx>]

> Anyway, Paul, can you help me on one thing please? Can you tell me how I can
> use this ErrorPrinter for warnings too?

An XQueryWarning is just a typedef for XQueryException, so it should just work as-is.

That aside: generally, I don't like to decide for the user how errors should be printed.  By putting an error-printer in the public API, you're essentially making that decision for them.  If you're going to do that, you could just define operator<<(ostream&,ZorbaException const&) and then << would just work.

If you want to set parameters (like XML or indentation), then the nice way to do it is via stream manipulators, e.g.:

    // ...
    }
    catch ( XQueryException const &e ) {
      cout << XQueryException::as_xml << XQueryException::indent( 2 ) << e;
    }

You can look at src/util/indent.h for how to do this kind of thing.  The above manipulators, however, should be "one-shot" and auto-reset (which is trivial to do).
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