如何在正则表达式中划分一个换行符和两个换行符？

Question

我想分组正则表达式的输出：

换行符'\n'
两个换行符'\n\n'

如何分成两组才能使用其他正则表达式拆分方法？

查找单独的换行符或我管理的两个换行符。例如：

Facebook and Google exploited a feature__(\n)__  
intended for “enterprise developers” to__(\n)__  
distribute apps that collect large amounts__(\n)__  
of data on private users, TechCrunch first reported.__(\n\n)__   

Apple’s maneuver has been characterized by some as a chilling demonstration of the company’s power.__(\n)__  
Verge editor-in-chief Nilay Patel suggested in a tweet that it was cause for concern: First, they came for our enterprise certificates, then… well, what, exactly?__(\n\n)__  

Some text so on...

我试过这段代码：

def find_newlines(file):
    with open(file, "r") as content:
       text = content.read()
       content = re.split("\n+", text)
    return content

结果是：

['Apple' , 'Something', 'Enything']

我想要以下输出：

['Facebook and Google exploited a feature intended for “enterprise developers” to distribute apps that collect large amounts of data on private users, TechCrunch first reported.' __,__ 'Apple’s maneuver has been characterized by some as a chilling demonstration of the company’s power. Verge editor-in-chief Nilay Patel suggested in a tweet that it was cause for concern: First, they came for our enterprise certificates, then… well, what, exactly?']

我要获取一组换行符和 2 组两个换行符。

Answer 1

您似乎试图将您的文本分成两个（或更多）由双换行符分隔的块。因此，一种方法是首先拆分 \n\n 上的文本。这将导致 blocks 仍然包含单个换行符。然后每个块可以将任何剩余的换行符替换为空格。这一切都可以使用 Python 列表理解来完成，如下所示：

text = """Facebook and Google exploited a feature
intended for “enterprise developers” to
distribute apps that collect large amounts
of data on private users, TechCrunch first reported.

Apple’s maneuver has been characterized by some as a chilling demonstration of the company’s power.
Verge editor-in-chief Nilay Patel suggested in a tweet that it was cause for concern: First, they came for our enterprise certificates, then… well, what, exactly?"""

content = [block.replace('\n', ' ') for block in text.split('\n\n')]

print(content)

给你一个包含两个条目且没有换行符的列表：

['Facebook and Google exploited a feature intended for “enterprise developers” to distribute apps that collect large amounts of data on private users, TechCrunch first reported.', 'Apple’s maneuver has been characterized by some as a chilling demonstration of the company’s power. Verge editor-in-chief Nilay Patel suggested in a tweet that it was cause for concern: First, they came for our enterprise certificates, then… well, what, exactly?']

正则表达式可用于块由两个或多个空行分隔的情况，如下所示：

import re

text = """Facebook and Google exploited a feature
intended for “enterprise developers” to
distribute apps that collect large amounts
of data on private users, TechCrunch first reported.



Apple’s maneuver has been characterized by some as a chilling demonstration of the company’s power.
Verge editor-in-chief Nilay Patel suggested in a tweet that it was cause for concern: First, they came for our enterprise certificates, then… well, what, exactly?"""

content = [block.replace('\n', ' ') for block in re.split('\n{2,}', text)]

print(content)

如何在正则表达式中划分一个换行符和两个换行符？

How I can divide a newline and two newline in regular expression?

python

regex

newline