匹配最接近的值对

Question

如何找到与另一个字符串最接近的匹配字符串

所以例如

string1：val1 ... string1：val2 .... string2：val3 ...

应该捕获最接近string2的string1，这将是＆＃34; string1：val2＆＃34;

• string1可以出现任意次。

• 字符之间可以是任何

Answer 1

最简单的方法就像(?s)"title":(?:(?!"title":).)*?"value":".*?"

 (?s)                    # Dot-all modifier
 "title":                # Literal 'title'
 (?:                     # Group start
      (?! "title": )          # Negative assertion, not 'title' ahead
      .                       # Ok, grab this chakracter
 )*?                     # Group end, do 0 to many times
 "value":" .*? "         # Until 'value' is found

输出

  **  Grp 0 -  ( pos 73 , len 39 ) 
 "title":"text2" asjdsjsd "value":"val1"