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# -*- coding: utf-8 -*-
"""
Aho-Corasick string search algorithm.
Author : Wojciech Muła, wojciech_mula@poczta.onet.pl
WWW : http://0x80.pl
License : public domain
"""
import ahocorasick
ac = ahocorasick.Automaton()
ac.add_word('S', 1)
ac.make_automaton()
buffer = 'SSS'
def case_1():
count = 0
for item in ac.iter(buffer, 0, 3): # this causes an error
print(item)
count += 1
assert(count == 3)
def case_2():
count = 0
for item in ac.iter(buffer, 0, 2): # no error, but it misses the last 'S' in the buffer
print(item)
count += 1
assert(count == 2)
case_1()
case_2()
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