通过正则表达式提取相同字符串之间的内容

Question

I would like to capture everything between 2 same strings.

String1: two
String2: two

EXAMPLE:

two strings two 123 twoIKStwo .[]?>-=two&1`ddddtwo()dsaltwo 

RESULT:

 strings , 
 123 ,
IKS,
 .[]?>-=,
&1`dddd,
()dsal

*including line-break and any invisible characters.

I have tried several Regexes but I've failed miserably. I would like to capture one group results if possible, and purely in Regex syntax. I want to capture everything inside I have searched across the web, but it seems nobody needs to accomplish this or second option is that it is extremely easy to do it, so nobody is asking for that.

Thank you for any suggestions.

Answer 1

You can use below regex:

([A-Za-z]+)(.*?)(?=\1)

And then capture group 2.

Output:

Match 1
Group 2.    3-12    ` strings `
Match 2
Group 2.    15-20   ` 123 `
Match 3
Group 2.    23-26   `IKS`
Match 4
Group 2.    29-37   ` .[]?>-=`
Match 5
Group 2.    40-47   `&1`dddd`
Match 6
Group 2.    50-56   `()dsal`

Demo: https://regex101.com/r/wJ7hW5/1