使用正則表達式從字符串中刪除空引號

Question

我想刪除標點符號，例如“”，“”， 、、 , "", '' from my string using regex. The code so far I've written only removes the ones which space between them. How do I remove the empty ones such as '', , "", '' from my string using regex. The code so far I've written only removes the ones which space between them. How do I remove the empty ones such as '',

#Code
s = "hey how ' ' is the ` ` what are '' you doing `` how is everything"
s = re.sub("' '|` `|" "|""|''|``","",s)
print(s)

我的預期結果：

hey how is the what are you doing how is everything

Answer 1

您可以使用此正則表達式來匹配所有此類引號：

r'([\'"`])\s*\1\s*'

碼：

>>> s = "hey how ' ' is the ` ` what are '' you doing `` how is everything"
>>> print (re.sub(r'([\'"`])\s*\1\s*', '', s))
hey how is the what are you doing how is everything

正則表達式詳細信息：

• ([\\'"`]) ：匹配給定的引號之一並將其捕獲在組＃1中
• \\s* ：匹配0個或多個空格
• \\1 ：使用第1組的反向引用確保我們匹配相同的結束語
• \\s* ：匹配0個或多個空格

正則演示

Answer 2

在這種情況下，為什么不匹配所有單詞字符，然后再將它們組合起來？

' '.join(re.findall('\w+',s))
# 'hey how is the what are you doing how is everything'