Cadmium: A pure Crystal NLP library

I've been working on a library to provide useful NLP (natural language processing) functionality in Crystal. The library is called Cadmium and is still in alpha with new features being added daily. Currently it provides functions such as tokenization, string distance, stemming, inflecting, n-grams, tf-idf (term frequency-inverse document frequency), and transliteration; with many more features coming in the near future.