Antlr.Unofficial by: Stefan Popov

This is an unofficial packaging of the latest ANTLR runtime. Couldn't find one on nuget.org, so I created my own.

Ardalis.GuardClauses by: Steve Smith (@ardalis)

A simple package by @ardalis and @nimblepros with guard clause helper methods. See docs for how to extend using your own extension methods defined in your project.