Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I found some interesting possibility in many regex engines:
It’s possible to place backreference inside the capture group and reference this group.
For example: (\1)
My question: for what regex patterns it may be used? I can’t imagine…
There is an explanation for use of nested references, which I think clearly demonstrates the marginal usefulness of this feature.