Python Regex将在更多条件下匹配版权声明中的公司名称

一段时间以来，我一直在试图找到一个强大的正则表达式，从版权声明中提取公司名称（而且对正则表达式了解不多）

在这个问题上：

我得到了正则表达式：

(?i)(?:©(?:\s*Copyright)?|Copyright(?:\s*©)?)\s*\d+(?:\s*-\s*\d+)?\s*(.*?(?=\W*All\s+rights\s+reserved)|[^.]*(?=\.)|.*)

但当我尝试更多的例子时，我发现这是不够的。我希望对其进行更改，使其也符合以下条件，同时仍适用于以前的所有情况：

考虑到“）”或“版权”（以最后一个为准）之前可能会出现任何其他内容，并忽略它

示例：

考虑到“）”或“版权”之后可能没有年份，但公司名称已经存在

例如：

考虑到“版权”或“）（我认为条件1也满足这一点）之前的年份可能会出现

示例：

如果在此之前有一场比赛，然后忽略其他比赛：

例如：

版权所有2019 ComputerEase建筑软件| 1-800-544-2530

我相信你会得到你所需要的。解释如下：

(?i)                                # make the regex case insensitive
(?:Copyright\s*©?|©\s*(Copyright)?) # Look for Copyright and/or © to get us started
([\d\s—-]+)?                        # There might be some digits, spaces, and dashes, but not necessarily
(©|Copyright)?\s*                   # Copyright or © could be separated by dates, so look for them again
(.+?)                               # This is the sugar we're looking for
(?=All rights reserved|\||$)        # If you find "All rights reserved" a | or end of string, stop capturing the text

你可以用

(?i)(?:©(?:\s*(?:\d{4}(?:\s*[-—–]\s*\d{4})?)?\s*Copyright)?|Copyright(?:\s*(?:\d{4}(?:\s*[-—–]\s*\d{4})?)?\s*©)?)(?:\s*\d{4}(?:\s*[-—–]\s*\d{4})?)?\s*(.*?(?=\s*[.|]|\W*All\s+rights\s+reserved)|.*\b)

见

Python代码：

import re
s = "Copyright © 2019 Apple Inc. All rights reserved.\r\n© 2019 Quid, Inc. All Rights Reserved.\r\n© 2009 Database Designs \r\n© 2019 Rediker Software, All Rights Reserved\r\n©2019 EVOSUS, INC. ALL RIGHTS RESERVED\r\n© 2019 Walmart. All Rights Reserved.\r\n© Copyright 2003-2019 Exxon Mobil Corporation. All Rights Reserved.\r\nCopyright © 1978-2019 Berkshire Hathaway Inc.\r\n© 2019 McKesson Corporation\r\n© 2019 UnitedHealth Group. All rights reserved.\r\n© Copyright 1999 - 2019 CVS Health\r\nCopyright 2019 General Motors. All Rights Reserved.\r\n© 2019 Ford Motor Company\r\n©2019 AT&T Intellectual Property. All rights reserved.\r\n© 2019 GENERAL ELECTRIC\r\nCopyright ©2019 AmerisourceBergen Corporation. All Rights Reserved.\r\n© 2019 Verizon\r\n© 2019 Fannie Mae\r\nCopyright © 2018 Jonas Construction Software Inc. All rights reserved.\r\nAll Comments © Copyright 2017 Kroger | The Kroger Co. All Rights Reserved\r\n© 2019 Express Scripts Holding Company. All Rights Reserved. 1 Express Way, St. Louis, MO 63121\r\n© 2019 JPMorgan Chase & Co.\r\nCopyright © 1995 - 2018 Boeing. All Rights Reserved.\r\n© 2019 Bank of America Corporation. All rights reserved.\r\n© 1999 - 2019 Wells Fargo. All rights reserved. NMLSR ID 399801\r\n©2019 Cardinal Health. All rights reserved.\r\n© 2019 Quid, Inc All Rights Reserved.\r\n602-226-2389 ©2019 Endurance International Group.\r\nCopyright 1999 — 2019 © Iflexion. All rights reserved.\r\nISO 9001:2008, ISO/ IEC 27001:2005 © Mobikasa 2019\r\n© 2019 Copyright arcadia.io.\r\n2018 © Power Tools LLC\r\nCopyright 2019 ComputerEase Construction Software | 1-800-544-2530\r\n© 2019 3M. 3M Health Information Systems Privacy Policy"
rx = r'''(?xi)
(?:©                                        # Start of a group: © symbol
(?:\s*                                      #  Start of optional group: 0+ whitespaces
  (?:\d{4}                                  #   Start of optional group: 4 digits
    (?:\s*[-—–]\s*\d{4})?                   #     0+ spaces, dashes, spaces, 4 digits
  )?                                        #   End of group
  \s*Copyright                              #  Spaces and Copyright
)?                                          #  End of group 
|                                           #  OR 
Copyright                                   
 (?:\s*                                     #  Start of optional group: 0+ whitespaces
   (?:\d{4}                                 #   Start of optional group: 4 digits
     (?:\s*[-—–]\s*\d{4})?                  #     0+ spaces, dashes, spaces, 4 digits
   )?\s*©                                   #   End of group, 0+ spaces, ©
 )?                                         #  End of group
)                                           # End of group
(?:\s*\d{4}(?:\s*[-—–]\s*\d{4})?)?          # Optional group, 9999 optionally followed with dash enclosed with whitespaces and then 9999
\s*                                         # 0+ whitespaces
(                                           # Start of a capturing group:
   .*?                                      # any 0+ chars other than linebreak chars, as few as possible, up to...
    (?=\s*[.|]|                             # 0+ spaces and then | or ., or
        \W*All\s+rights\s+reserved)         # All rights reserved with any 0+ non-word chars before it
  |                                         # or
   .*\b                                     # any 0+ chars other than linebreak chars, as many as possible
)'''

for m in re.findall(rx, s):
    print(m)

看。输出：

---

我知道它的老问题，但想发布更好的解决方案。 我训练了spacy模型，该模型在5k+版权文本样本上训练。

---

这是模型和作品

那么，考虑到新规则4，所有评论©版权2017 Kroger | Kroger公司的预期输出是什么？版权所有？@WiktorStribiżew应该是“Kroger”有一条规则在点之前停止，但2019版权所有arcadia.io.呢？是的，这很棘手。但是如果是那样的话，我们可以保留arcadiaCheck。最后一个问题：如果公司名称中有一个号码怎么办？例如“©2019 3M.3M健康信息系统隐私政策”@FilipeAleixo预期结果是什么<代码>3M？“3M”。正如您在第一个答案中所说，我尝试将{4}添加到\d中，但没有成功地使其工作

(?i)                                # make the regex case insensitive
(?:Copyright\s*©?|©\s*(Copyright)?) # Look for Copyright and/or © to get us started
([\d\s—-]+)?                        # There might be some digits, spaces, and dashes, but not necessarily
(©|Copyright)?\s*                   # Copyright or © could be separated by dates, so look for them again
(.+?)                               # This is the sugar we're looking for
(?=All rights reserved|\||$)        # If you find "All rights reserved" a | or end of string, stop capturing the text

(?i)(?:©(?:\s*(?:\d{4}(?:\s*[-—–]\s*\d{4})?)?\s*Copyright)?|Copyright(?:\s*(?:\d{4}(?:\s*[-—–]\s*\d{4})?)?\s*©)?)(?:\s*\d{4}(?:\s*[-—–]\s*\d{4})?)?\s*(.*?(?=\s*[.|]|\W*All\s+rights\s+reserved)|.*\b)

import re
s = "Copyright © 2019 Apple Inc. All rights reserved.\r\n© 2019 Quid, Inc. All Rights Reserved.\r\n© 2009 Database Designs \r\n© 2019 Rediker Software, All Rights Reserved\r\n©2019 EVOSUS, INC. ALL RIGHTS RESERVED\r\n© 2019 Walmart. All Rights Reserved.\r\n© Copyright 2003-2019 Exxon Mobil Corporation. All Rights Reserved.\r\nCopyright © 1978-2019 Berkshire Hathaway Inc.\r\n© 2019 McKesson Corporation\r\n© 2019 UnitedHealth Group. All rights reserved.\r\n© Copyright 1999 - 2019 CVS Health\r\nCopyright 2019 General Motors. All Rights Reserved.\r\n© 2019 Ford Motor Company\r\n©2019 AT&T Intellectual Property. All rights reserved.\r\n© 2019 GENERAL ELECTRIC\r\nCopyright ©2019 AmerisourceBergen Corporation. All Rights Reserved.\r\n© 2019 Verizon\r\n© 2019 Fannie Mae\r\nCopyright © 2018 Jonas Construction Software Inc. All rights reserved.\r\nAll Comments © Copyright 2017 Kroger | The Kroger Co. All Rights Reserved\r\n© 2019 Express Scripts Holding Company. All Rights Reserved. 1 Express Way, St. Louis, MO 63121\r\n© 2019 JPMorgan Chase & Co.\r\nCopyright © 1995 - 2018 Boeing. All Rights Reserved.\r\n© 2019 Bank of America Corporation. All rights reserved.\r\n© 1999 - 2019 Wells Fargo. All rights reserved. NMLSR ID 399801\r\n©2019 Cardinal Health. All rights reserved.\r\n© 2019 Quid, Inc All Rights Reserved.\r\n602-226-2389 ©2019 Endurance International Group.\r\nCopyright 1999 — 2019 © Iflexion. All rights reserved.\r\nISO 9001:2008, ISO/ IEC 27001:2005 © Mobikasa 2019\r\n© 2019 Copyright arcadia.io.\r\n2018 © Power Tools LLC\r\nCopyright 2019 ComputerEase Construction Software | 1-800-544-2530\r\n© 2019 3M. 3M Health Information Systems Privacy Policy"
rx = r'''(?xi)
(?:©                                        # Start of a group: © symbol
(?:\s*                                      #  Start of optional group: 0+ whitespaces
  (?:\d{4}                                  #   Start of optional group: 4 digits
    (?:\s*[-—–]\s*\d{4})?                   #     0+ spaces, dashes, spaces, 4 digits
  )?                                        #   End of group
  \s*Copyright                              #  Spaces and Copyright
)?                                          #  End of group 
|                                           #  OR 
Copyright                                   
 (?:\s*                                     #  Start of optional group: 0+ whitespaces
   (?:\d{4}                                 #   Start of optional group: 4 digits
     (?:\s*[-—–]\s*\d{4})?                  #     0+ spaces, dashes, spaces, 4 digits
   )?\s*©                                   #   End of group, 0+ spaces, ©
 )?                                         #  End of group
)                                           # End of group
(?:\s*\d{4}(?:\s*[-—–]\s*\d{4})?)?          # Optional group, 9999 optionally followed with dash enclosed with whitespaces and then 9999
\s*                                         # 0+ whitespaces
(                                           # Start of a capturing group:
   .*?                                      # any 0+ chars other than linebreak chars, as few as possible, up to...
    (?=\s*[.|]|                             # 0+ spaces and then | or ., or
        \W*All\s+rights\s+reserved)         # All rights reserved with any 0+ non-word chars before it
  |                                         # or
   .*\b                                     # any 0+ chars other than linebreak chars, as many as possible
)'''

for m in re.findall(rx, s):
    print(m)

Apple Inc
Quid, Inc
Database Designs
Rediker Software
EVOSUS, INC
Walmart
Exxon Mobil Corporation
Berkshire Hathaway Inc
McKesson Corporation
UnitedHealth Group
CVS Health
General Motors
Ford Motor Company
AT&T Intellectual Property
GENERAL ELECTRIC
AmerisourceBergen Corporation
Verizon
Fannie Mae
Jonas Construction Software Inc
Kroger
Express Scripts Holding Company
JPMorgan Chase & Co
Boeing
Bank of America Corporation
Wells Fargo
Cardinal Health
Quid, Inc
Endurance International Group
Iflexion
Mobikasa 2019
arcadia
Power Tools LLC
ComputerEase Construction Software
3M