This category was born on behalf of this threat
https://forum.pimatic.org/topic/1696/regex-website-parser

There are frequent requests on help with logs / logreader, parsing websites for data strings or regex evaluations and shellsensor curl’s.

From now on, you can ask for help here in this category.

There are some helpful tools that you might also consider to check

regex evaluation :
www.regexr.com
www.regex101.com
www.myregextester.com

escaping special characters for json usage
www.bernhardhaeussner.de/odd/json-escape/