python正則表達式似乎不能用一些連字符

Question

我想解析一些日期與以下正則表達式。但它似乎只用一些連字符。請看下面的鏈接。它不符合某些日期。我添加了特定的連字符，但它只能在rgex101.com中使用。不在Python中。

((?:(?<=)|^)((?:0?[1-9]|1[0-2])?[/-] ?(?:[12][0-9])?[0-9]{2})\b(?:[\s-]+)[/-]{0,2}\s*\b((?:0?[1-9]|1[0-2]) ?[/-] ?(?:[12][0-9])?[0-9]{2})\b) 

https://regex101.com/r/vI6qN1/1

Answer 1

你只需要添加多修改。

>>> re.findall(r'(?m)((?:(?<=)|^)((?:0?[1-9]|1[0-2])?[/-] ?(?:[12][0-9])?[0-9]{2})\b(?:[\s-]+)[/-]{0,2}\s*\b((?:0?[1-9]|1[0-2]) ?[/-] ?(?:[12][0-9])?[0-9]{2})\b)', s) 
[('02/2003-01/2005', '02/2003', '01/2005'), ('01/2002-01/2003', '01/2002', '01/2003'), ('01/2005-02/2007', '01/2005', '02/2007'), ('02/2003-01/2005', '02/2003', '01/2005'), ('01/2002-01/2003', '01/2002', '01/2003'), ('03/1999-01/2002', '03/1999', '01/2002')] 

無論何時使用錨點，最好添加多行修改器。

實施例：

>>> s = """  01/2013-11/2014 
     01/2010-12/2012 

     01/2009-01/2010 


     03/2007-12/2009 


02/2003-01/2005 

01/2002-01/2003 


01/2005-02/2007 

02/2003-01/2005, 

01/2002-01/2003, 


, 03/1999-01/2002, 
""" 
>>> re.findall(r'((?:(?<=)|^)((?:0?[1-9]|1[0-2])?[/-] ?(?:[12][0-9])?[0-9]{2})\b(?:[\s-]+)[/-]{0,2}\s*\b((?:0?[1-9]|1[0-2]) ?[/-] ?(?:[12][0-9])?[0-9]{2})\b)', s) 
[('02/2003-01/2005', '02/2003', '01/2005'), ('02/2003-01/2005', '02/2003', '01/2005'), ('01/2002-01/2003', '01/2002', '01/2003'), ('03/1999-01/2002', '03/1999', '01/2002')] 
>>> re.findall(r'(?m)((?:(?<=)|^)((?:0?[1-9]|1[0-2])?[/-] ?(?:[12][0-9])?[0-9]{2})\b(?:[\s-]+)[/-]{0,2}\s*\b((?:0?[1-9]|1[0-2]) ?[/-] ?(?:[12][0-9])?[0-9]{2})\b)', s) 
[('02/2003-01/2005', '02/2003', '01/2005'), ('01/2002-01/2003', '01/2002', '01/2003'), ('01/2005-02/2007', '01/2005', '02/2007'), ('02/2003-01/2005', '02/2003', '01/2005'), ('01/2002-01/2003', '01/2002', '01/2003'), ('03/1999-01/2002', '03/1999', '01/2002')] 

_{見有在比賽結果的差。}