Question

我要删除标点符号，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 '',

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

我的预期结果：

hey how is the what are you doing how is everything

Answer 1

您可以使用此正则表达式来匹配所有此类引号：

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

代码：

>>> 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

RegEx详细信息：

([\'"`])：匹配给定的引号之一并将其捕获在＃1组中
\s*：匹配0个或多个空格
\1：使用＃1组的向后引用确保我们匹配相同的结束报价
\s*：匹配0个或多个空格

RegEx Demo

Answer 2

在这种情况下，为什么不匹配所有单词字符，然后将它们结合起来？

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

使用正则表达式从字符串中删除空引号

2 个答案: