在大写字母之间添加 space 但忽略 3 个字母的单词

Question

我一直在寻找一种方法在大写字母之间添加 space，同时忽略最多 3 个字母的大写单词，例如“CIA”或“FBI”。

例如：

import re

elem = "Optional extrasSafes in guestrooms can be used for EUR 2.5 per nightBabysitting/childcare is available for an extra charge"
elem = re.sub(r"(\w)([A-Z])", r" ", elem)

print(elem)
elem = "Optional extras Safes in guestrooms can be used for E UR 2.5 per night Babysitting/childcare is available for an extra charge"

这里，问题是“EUR”被转换成了“E UR”。

你知道如何应对吗？

Answer 1

您似乎只想在小写后跟大写字母之间的边界处添加 space .如果是这样，那么您可以尝试：

elem = "Optional extrasSafes in guestrooms can be used for EUR 2.5 per nightBabysitting/childcare is available for an extra charge"
output = re.sub(r'([a-z])([A-Z])', r' ', elem)
print(output)

这会打印：

Optional extras Safes in guestrooms can be used for EUR 2.5 per night Babysitting/childcare is available for an extra charge

在大写字母之间添加 space 但忽略 3 个字母的单词

Add space in-between Capital Letters but ignore 3-letter words

python

string

python-re