FFranz

Well I'm new to open source projects and this would be my first contribution, but I'd like to try implement this, if any of the maintainers agrees to it.

@jnyrup what about `ContainAllEquivalentOf` and `ContainAnyEquivalentOf` ? I thinks this would fit with the method names mentioned in this thread.

This would provide the opportunity for the user to use whatever member they need from the `StringComparison` enum, since all of them would be available. The overloads with `EquivalentOf` only...

Are there any plans on supporting this? It's been four and a half years now since this feature was requested, and it seems to me like there are quite a...