#!/usr/bin/env python

import random
import re
import string

class Token():
    def __init__(self, s):
        # cleaned_words = re.sub(r"%s" % string.punctuation, "", s)
        cleaned_words = re.sub(r"[\.,\?!'\":;^`\|%#\&\*<=>\(\)\[\]\{\}\+\/_-]*", "", s)
        self.words = [word for word in cleaned_words.split() if word not in ["the", "a", "an"]]

    def empty(self):
        if len(self.words) == 0:
            return True

    def contains(self, word):
        if len(self.words) > 0:
            result = [True for w in self.words if w.lower() == word.lower()]
            if len(result) > 0:
                return result[0]

def squish(text):
    "Remove series of spaces from the text."
    return re.sub('[ \n\t]+', ' ', text).strip()

def routput(text):
    """
    Return string with internal word choices replaced randomly.
    For instance, the string:

    'This feels [|very|quite] [nice|cozy|comfortable].'

    Could return any of the following strings:

    'This feels quite nice.'
    'This feels cozy.'
    'This feels very comfortable.'
    """
    acc = []
    for s in text.split("["):
        choices, *rest = s.split("]")
        choice = random.choice(choices.split('|'))
        acc = acc + [choice] + rest
    return squish(''.join(acc))