正则表达式删除首字母缩略词的句号？

Question

我想从一串文本中删除首字母缩略词的句点,但我也希望o在常规句点(例如句子末尾)中留下.

那么下面这句话:

"The C.I.A. is a department in the U.S. Government."

应该成为

"The CIA is a department in the US Government."

有没有一种干净的方法来使用Python做到这一点？到目前为止,我有两个步骤:

words = "The C.I.A. is a department in the U.S. Government."
words = re.sub(r'([A-Z].[A-Z.]*)\.', r'\1', words)
print words
# The C.I.A is a department in the U.S Government.    
words = re.sub(r'\.([A-Z])', r'\1', words)
print words
# The CIA is a department in the US Government.

Answer 1

可能这个？

>>> re.sub(r'(?<!\w)([A-Z])\.', r'\1', s)
'The CIA is a department in the US Government.'

替换前面带有大写单个字母的单个点,前提是单个字母前面没有任何\w字符集.后一个标准由负面的后观断言强制执行- (?<!\w).