I've tried clang-format. It doesn't do what I need, it is not very flexible and authors are refusing to create additional formatting options. But the main problem for me is that it cannot do incremental formatting. I cannot say: do just indentation and leave everything else as it is. It force to do my pet project in some corporate style, preventing even possibility of experiments with style.
I've tried astyle. It doesn't support complicated things like clang-format do, but it does a lot of options, and most of all, it does support incremental formatting. The problem is it fails to produce correct results on longer files. Looks like some buffer processing problem, because about every 300th line got weird. Sometimes even with syntax errors.
I've tried uncrustify. So far it is the best choice, but it still has some drawbacks. The configuration is really cryptic and I can't say that it is documented enough. I was able to configure it to do indentation only. And... it looks like it cannot properly indent nested classes.
Yes, I know, all of them are open source projects and can fix them or change them as I like. But first, that's not what I want to do right now, and second, I don't want to end up supporting my own private branch and spend time incorporating my changes on every version update or stick to some old and obsolete modified version.
Any other options?