#python 3. 6 
#蔡军生 
#http://blog.csdn.net/caimouse/article/details/51749579 
# 
from re_test_patterns import test_patterns 
 
test_patterns( 
 'abbaabbba', 
 [('ab*?', 'a followed by zero or more b'), 
  ('ab+?', 'a followed by one or more b'), 
  ('ab??', 'a followed by zero or one b'), 
  ('ab{3}?', 'a followed by three b'), 
  ('ab{2,3}?', 'a followed by two to three b')], 
) 

'ab*?' (a followed by zero or more b)


 'abbaabbba'
 'a'
 ...'a'
 ....'a'
 ........'a'


'ab+?' (a followed by one or more b)


 'abbaabbba'
 'ab'
 ....'ab'


'ab??' (a followed by zero or one b)


 'abbaabbba'
 'a'
 ...'a'
 ....'a'
 ........'a'


'ab{3}?' (a followed by three b)


 'abbaabbba'
 ....'abbb'


'ab{2,3}?' (a followed by two to three b)


 'abbaabbba'
 'abb'
 ....'abb'