(\w+)(\s)(\w+)\2(\w+) in this exercise we have to use capture groups and then replace the string order to 'three two one'. But first, when you are using the capture group you may have asked yourself why the code below does not work: (\w+)(\s)\1\2\1 to match the sting "one two three"...

A regular expression for replacing Arlene and party girl with the lab tech model in 7 Days to Die. This ought to be applied to the file D:\Program Files (x86)\Steam\steamapps\common\7 Days To Die\Data\Config\entitygroups.xml

Array ( [0] => Página 1 de 5 MEGA [1] => Código da Consulta: 15240795 [2] => MEGA15240795VIS\bKdKd>Z/Z\bOPRETOAGJ3548,SP,MEGA15240795VIS\bKdKd>Z/Z\bOPRETOAGJ3548,SP,MEGA15240795VIS\bKdKd>Z/Z\bOPRETOAGJ3548,SP,MEGA15240795VIS\bKdKd>Z/Z\bOPRETOAGJ3548,SP,MEGA15240795VIS\bKdKd...

Select string between double quotes.

Capturing the content of column names which are duplicate in nature to extract the actual name and suffix ("right" / "left")

This regex is to match Ascending or descending order of 8 digit number

匹配带引号内容，被引号包含的内容 结构($x) ((前引号)(内容)(后引号)) ...

By inserting this regex in a programming language to test it against Codeforces 1800A you'll solve the task

Search and change many regex matches

Validates client IDs

This pattern matches inconsistent addresses that have various street names and coordinates. This captures the Address 1 & 2, Type of Street, Coordinates (NE, NW, SE,SW) City, State, and Full zip

Ensure that Salesforce Flow name meets the following standards: - -

Validate comma-separated list of values (allowed: words; digits; special characters; single non-trailing non-leading spaces;)

Matches the data sent by the twitch IRC and captures into various groups

text has numbers

match some emails and extract their local part and domain