用 re.split() 分割字幕文本 [重复]答案

【问题标题】：splitting a subtitle text with re.split() [duplicate]用 re.split() 分割字幕文本 [重复]
【发布时间】：2021-03-05 08:33:24
【问题描述】：

我正在尝试拆分以下字符串

sub_text = """278
00:15:13,442 --> 00:15:14,436
Mr. Burns,

279
00:15:14,454 --> 00:15:17,893
I came here because my brother
is about to be wrongfully convicted,

280
00:15:17,947 --> 00:15:19,514
and the man I'm looking for

281
00:15:19,542 --> 00:15:21,010
would help me find the truth. 
"""

进入这样的列表

[('00:15:13,442 --> 00:15:14,436', 'Mr. Burns,'), ('00:15:14,454 --> 00:15:17,893', 'I came here because my brother is about to be wrongfully convicted,'), ...].

我正在尝试使用 regex 拆分文本，但它不起作用。

re.split(r'^\d+$\n', sub_text) 返回一个完整的字符串，即使一切似乎都匹配得很好 here。

【问题讨论】：

正则表达式不起作用，因为您没有使用多行标志。但为什么不直接做：sub_text.split('\n\n')？

标签： python regex string list split

【解决方案1】：

你可以使用正则表达式：

>>> import re
>>> re.findall(r"(\d+:\d+:\d+,\d+ --> \d+:\d+:\d+,\d+)\n(.+(?:\n.+)?)\n", sub_text)
[('00:15:13,442 --> 00:15:14,436', 'Mr. Burns,'), 
 ('00:15:14,454 --> 00:15:17,893', 'I came here because my brother\nis about to be wrongfully convicted,'), 
 ('00:15:17,947 --> 00:15:19,514', "and the man I'm looking for"), 
 ('00:15:19,542 --> 00:15:21,010', 'would help me find the truth. ')]

【讨论】：