# -*- coding: utf-8 -*-
#!/usr/bin/env python
import re

NAME_RE = re.compile(ur'^[\u4e00-\u9fa5a-zA-Z0-9·]{2,20}$')

PASSWORD_RE = re.compile(r'[A-Za-z0-9@#$%^&+=]{6,}')

PHONE_NUMBER_RE = re.compile(r'^(1\d[\d]{9}$)|((400|800)-?(\d{3})-?(\d{4}))|(0\d{9,10})$')

CARD_NO_RE = re.compile(r"[A-z\d]{1,32}$")

def check_phone_number(phone, allow_null = False):
    if allow_null and not phone:
        return True

    if not phone:
        return False

    return PHONE_NUMBER_RE.match(phone)

def check_entity_name(name, allow_null = False):
    if not name and allow_null:
        return True

    if not name:
        return False

    return NAME_RE.match(name)