import re


_mw_prepositions = [
    'close to',
    'down by',
    'on the way to',
    'on my way',
    'on his way',
    'on her way',
    'on your way',
    'on our way',
    'on their way',
]



MW_PREPOSITIONS_RE = re.compile('|'.join(_mw_prepositions), flags=re.IGNORECASE)


TIME_RE = re.compile(
    '{colon_digits}|{colon_digits} ?{am_pm}?|{one_two_digits} ?({am_pm})'.format(
        colon_digits=r'[0-2]?[0-9]:[0-5][0-9](?::[0-5][0-9])?',
        one_two_digits=r'[0-2]?[0-9]',
        am_pm=r'[ap]\.?m\.?'))


MONEY_RE = re.compile('\$\d+(?:\.\d+)?|\d+ dollars(?: \d+ cents)?')


DAYS_RE = re.compile('Monday|Tuesday|Wednesday|Thursday|Friday|Saturday|Sunday')


REGEXES = [('IN', 'O', MW_PREPOSITIONS_RE), ('CD', 'TIME', TIME_RE),
           ('NNP', 'DATE', DAYS_RE), ('CD', 'MONEY', MONEY_RE)]