之间如何解析！！！和 ？？？使用正则表达式

Question

我有一串如下所示的文本：

Image 56 ::: Beach, Summer, Sun !!! John Smith ???

我只想提取 John Smith

我试过了(?s)(?<=\!\!\!).+?(?=\?\?\?})

和(\!\!\!)(?:[^])*?(\?\?\?) 但是第一个不起作用，第二个给出的结果 !!! John Smith ??? 不仅仅是 John Smith。你能提供一些帮助吗？谢谢

Answer 1

您的第一个模式中有一个杂散的 } 字符。删除它，它将起作用。

Answer 2

试试这个：

!!!\s+\K.*?(?=\s+\?{3})

勾选https://regex101.com/r/uF0gV8/1 and Support of \K in regex

解释：

NODE                     EXPLANATION
----------------------------------------------------------------------
(?-imsx:                 group, but do not capture (case-sensitive)
                         (with ^ and $ matching normally) (with . not
                         matching \n) (matching whitespace and #
                         normally):
----------------------------------------------------------------------
  !!!                      '!!!'
----------------------------------------------------------------------
  \s+                      whitespace (\n, \r, \t, \f, and " ") (1 or
                           more times (matching the most amount
                           possible))
----------------------------------------------------------------------
  \K                       restart the match
----------------------------------------------------------------------
  .*?                      any character except \n (0 or more times
                           (matching the least amount possible))
----------------------------------------------------------------------
  (?=                      look ahead to see if there is:
----------------------------------------------------------------------
    \s+                      whitespace (\n, \r, \t, \f, and " ") (1
                             or more times (matching the most amount
                             possible))
----------------------------------------------------------------------
    \?{3}                    '?' (3 times)
----------------------------------------------------------------------
  )                        end of look-ahead
----------------------------------------------------------------------
)                        end of grouping
----------------------------------------------------------------------

Answer 3

试试这个：

!!!\s*\K[^\n\r?]+?(?=\s*\?\?\?)

Answer 4

您可以使用带有否定字符的捕获组 class。

!!!\s*([^?]+?)\s*\?{3}

要显示匹配结果，您需要引用第一组索引。

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