Markov Random Walk v1.1

This is a standard Markov random walk. Length is random.
Space, punctuation marks, digits and letters are the states.
You are welcome to have a try or use the code. By the way, inlinks and comments are welcome too :)

Enter your text: Lo, as a careful housewife runs to catch One of her feather'd creatures broke away, Sets down her babe, and makes all swift dispatch In pursuit of the thing she would have stay; Whilst her neglected child holds her in chase, Cries to catch her whose busy care is bent To follow that which flies before her face, Not prizing her poor infant's discontent; So runn'st thou after that which flies from thee, Whilst I thy babe chase thee afar behind; But if thou catch thy hope, turn back to me, And play the mother's part, kiss me, be kind; So will I pray that thou mayst have thy 'Will,' If thou turn back and my loud crying still.

Random walk: