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Refiddle Do you know PHP, Perl, Python or Java? View the docs to see how you can help out

StackOverflow is a Q&A site that's free

Stack Overflow is collaboratively built and maintained by your fellow programmers and is a great place to find answers to trick regular expression problems

To Ask a Question on SO

First, search to see if other developers have had similar problems and if the answers might apply to your question.

Then, create a refiddle, save it and ask your question. By sharing your fiddle, members can experiment with your fiddle to help you find the right pattern for your needs.