Hi everybody,
As I’m working on a bigger project of mine and at one point I needed a
lexical analyzer for a SQL-like language that I’m working on I created
this gem. I hope some of you may find it useful.
Here’s the link:
GitHub - vividness/lexeme: A simple lexical analyzer written in Ruby
Also, if there is anyone who is willing to try it out and give some
constructive feedback please feel free to do so. 
Thanks.