python Python正则表达式通过两个分隔符之一拆分字符串
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Python regex split a string by one of two delimiters
提问by interstar
I wanted to cut up a string of email addresses which may be separated by any combination of commas and white-space.
我想分割一串电子邮件地址，这些地址可以用逗号和空格的任意组合分隔。
And I thought it would be pretty straight-forward :
我认为这会很简单：
sep = re.compile('(\s*,*)+')
print sep.split("""[email protected], [email protected]
[email protected],,[email protected]""")
But it isn't. I can't find a regex that won't leave some empty slots like this :
但事实并非如此。我找不到一个不会像这样留下一些空槽的正则表达式：
['[email protected]', '', '[email protected]', '', '[email protected]', '', '[email protected]']
I've tried various combinations, but none seem to work. Is this, in fact, possible, with regex?
我尝试了各种组合，但似乎都不起作用。事实上，使用正则表达式可能吗？
回答by interstar
Doh!
呸！
It's just this.
就是这个。
sep = re.compile('[\s,]+')
回答by Mykola Golubyev
without re
无需重新
line = 'e@d , f@g, 7@g'
addresses = line.split(',')
addresses = [ address.strip() for address in addresses ]
回答by S.Lott
I like the following...
我喜欢以下...
>>> sep= re.compile( r',*\s*' )
>>> sep.split("""[email protected], [email protected]
[email protected],,[email protected]""")
['[email protected]', '[email protected]', '[email protected]', '[email protected]']
Which also seems to work on your test data.
这似乎也适用于您的测试数据。
