使用 Python 正则表达式处理 Twitter 数据

Question

I'm filtering tweets in my application and want to return all tweets that either have a certain word in the text. So if I am filtering BBC and I want all instances of BBC eg. BBC, bbc, BBC1, #BBC, @bbc, how could I write the regex.

So far I'm doing:

re.compile(r'#|@[0-9]'+term, re.IGNORECASE)

Term is a list containing words and I want returned only those words in the list with the extra @ or # or 0-9 prepending or appending that word OR the word by itself.

Thanks

Answer 1

使用'\\b'分隔符查找整个单词：

re.compile(r'\b(?:#|@|)[0-9]*%s[0-9]*\b' % re.escape(term), re.IGNORECASE)