# coding: utf8
from __future__ import unicode_literals

from ..char_classes import LIST_ELLIPSES, LIST_ICONS
from ..char_classes import CONCAT_QUOTES, ALPHA, ALPHA_LOWER, ALPHA_UPPER


_quotes = CONCAT_QUOTES.replace("'", "")

_infixes = (
    LIST_ELLIPSES
    + LIST_ICONS
    + [
        r"(?<=[{al}])\.(?=[{au}])".format(al=ALPHA_LOWER, au=ALPHA_UPPER),
        r"(?<=[{a}])[,!?](?=[{a}])".format(a=ALPHA),
        r"(?<=[{a}])[:<>=](?=[{a}])".format(a=ALPHA),
        r"(?<=[{a}]),(?=[{a}])".format(a=ALPHA),
        r"(?<=[{a}])([{q}\)\]\(\[])(?=[{a}])".format(a=ALPHA, q=_quotes),
        r"(?<=[{a}])--(?=[{a}])".format(a=ALPHA),
        r"(?<=[0-9])-(?=[0-9])",
    ]
)


TOKENIZER_INFIXES = _infixes