Regex original: (?<!Current\s)Error: Porém expect4j utiliza classes de regex do Apache Oro, que não possuem suporte para lookbehind.

Task from check.io. You are given an expression with numbers, brackets and operators. For this task only the brackets matter. Brackets come in three flavors: "{}" "()" or "[]". Brackets are used to determine scope or to restrict some expression. If a bracket is open, then it must be closed with a c...

this helps to extract the start and end tag but even if in between the start appears again.. it just captures the first start and the next occurence of end tag. only thing missing is i want to include the end of the line of the end tag

Matches registry type and number of Starfleet vessels

this reg will extract: "content" of SRC "content" of ALT complete width="???" "content" of style attr. ...

this will find any type of youtube embed or link to a video so you can replace with your own IFRAME $youtube_replacement = '';

this regexp will extract the homepage from an url; it will factor in the "www" if there is one, and it will accept a slash at the end