I actually did consider this when writing the "parser" but it was complicated enough that it was just getting in the way of my goal of having the simplest code

I actually did consider this when writing the "parser" but it was complicated enough that it was just getting in the way of my goal of having the simplest code and specs that got the job done. Also using 1-2-3-4 is simple enough that I decided it was not worth the extra rule.