将文本拆分为段落答案

【问题标题】：Split the text in paragraphs将文本拆分为段落
【发布时间】：2018-11-16 23:57:23
【问题描述】：

我知道我可以使用这样的东西

theText='She loves music. Her favorit instrument is the piano.\n\n However, \n\n she does not play it.'
paragraphs = [p for p in theText.split('\n\n') if p]
for i,p in enumerate(paragraphs):
    print(i,p)

将文本分成段落。

但是，我想添加一个附加条件，即下一个句子不能以小写字母开头。实际代码提供

0 She loves music. Her favorit instrument is the piano.
1  However, 
2  she does not play it.

我愿意

0 She loves music. Her favorit instrument is the piano.
1  However, she does not play it.

我认为我应该使用一些正则表达式，但我无法找出正确的结构。

【问题讨论】：

标签： regex string python-3.x nlp

【解决方案1】：

您可以使用以下正则表达式，它使用Lookahead ?= 确保您的\n\n 后跟一个大写字母（和一个可选空格）。此外，在你的枚举中，你必须摆脱你的\n\n（这里，使用re.sub）：

import re
paragraphs = re.split('\n\n\s?(?=[A-Z])',theText)
for i,p in enumerate(paragraphs):
    print(i,re.sub('\n\n\s?','',p))

0 She loves music. Her favorit instrument is the piano.
1 However, she does not play it.

【讨论】：

re.split(r'\n*',re.sub(r'\n*(?= [a-z])','',theText))