I partially agree, directives are not easy to learn, and there is not enough good documentation or literature on how to write them well. However, I have found t

I partially agree, directives are not easy to learn, and there is not enough good documentation or literature on how to write them well. However, I have found the api to be very expressive , concise, and flexible once mastered. I can't say the same for most real languages I work with everyday.