import re
import random
import timeit
import functools


print('Generating chars...')
chars = ''.join(map(chr, range(0x110000)))
print('Generating samples...')
samples = [''.join(random.sample(chars, 1000)) for x in range(100)]

_has_surrogates1 = re.compile(
    '([^\ud800-\udbff]|\A)[\udc00-\udfff]([^\udc00-\udfff]|\Z)').search

_has_surrogates2 = re.compile('[\udc80-\udcff]').search


_pep383_surrogates = set(map(chr, range(0xDC80, 0xDCFF+1)))
def _has_surrogates3(s):
    return any(c in _pep383_surrogates for c in s)

def _has_surrogates4(s):
    for c in s:
        if c in _pep383_surrogates:
            return True
    return False

def _has_surrogates5(s):
    return re.search('[\udc80-\udcff]', s)

_has_surrogates6 = functools.partial(re.search, '[\udc80-\udcff]')

for _has_surrogates in (_has_surrogates1, _has_surrogates2, _has_surrogates3,
                        _has_surrogates4, _has_surrogates5, _has_surrogates6):

    s = """\
for sample in samples:
    _has_surrogates(sample)
"""
    N = 100
    t = timeit.Timer(s, 'from __main__ import samples, _has_surrogates')
    print("%6.2f usec/pass" % (N*10 * t.timeit(number=N)/N))