This regex matches any pattern like in the title. HackerRank challenge modified.

oq?

be at least 8 characters with at least 1 Capital , 1 Lowercase , 1 special char , 1 number

This captures everything from the start until the first hashtag.

This pattern checks for the format according to the International ISBN Agency standard e.g. '978-3-16-148410-0'. Source: https://www.oreilly.com/library/view/regular-expressions-cookbook/9781449327453/ch04s13.html. NOTE: it does not validate if it is an actual ISBN number. It only validates the fo...

match like aa bb cc dd ee ff 00 aa 13 0 1 2 3 aa

Matches on escape sequences only. \b Backspace \f Form Feed \n New Line \r Carriage Return \t Horizontal Tabulator...

Here's a regular expression to handle a specific year in the different forms of dates: YYYY-MM-DD DD-MM-YYYY MM-DD-YYYY ...

If for whatever reason there isn't a delimiter within your data to for storing your SSNs you should be able to use this regular expression to capture 9 digit strings within data. You might need to add special keywords to filter out false positives.

A general regular expression that uses the keywords 'Facebook' and 'id' to collect strings that contain Facebook IDs. Also, added an additional condition to where if there's a long numeric string it will be match a group given that, 'Facebook' is within the string. This is a special use-case and can...

looking for lines like: *@block user

using this library, you can search for substrings of the type in a string: @delete [user_name]

Regex to select PlantUML Block in Asciidoc documents

a

This raged parses out the Title (optional) Firstname Middlename(s) (optional) Lastname (optional) and Suffix (optional)

This Regex parses out the LastName, FirstName, MiddleName(s) (optional) and Suffix (optional). The String must have at least two words separated by a comma to match.

guif

guif

matches on emails.. try it

Match a semantic version string, but numbers only (e.g. 1.2.3). Ignore things like dev, patch, src, etc.