将字符串拆分为具有多个单词边界分隔符的单词 [英] Split Strings into words with multiple word boundary delimiters

问题描述

我认为我想做的是一项相当常见的任务，但我在网上找不到任何参考资料.我有带标点符号的文本，我想要一个单词列表.

I think what I want to do is a fairly common task but I've found no reference on the web. I have text with punctuation, and I want a list of the words.

"Hey, you - what are you doing here!?"

应该

['hey', 'you', 'what', 'are', 'you', 'doing', 'here']

但是 Python 的 str.split() 只适用于一个参数，所以在我用空格分割后，所有单词都带有标点符号.有什么想法吗?

But Python's str.split() only works with one argument, so I have all words with the punctuation after I split with whitespace. Any ideas?

推荐答案

正则表达式合理的情况:

A case where regular expressions are justified:

import re
DATA = "Hey, you - what are you doing here!?"
print re.findall(r"[\w']+", DATA)
# Prints ['Hey', 'you', 'what', 'are', 'you', 'doing', 'here']

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