Positive number !

Match mac address with :, -, ., or no dividers.

it checkes for discord markdown examples includes: italic bold...

match IP:port in text

Türkiye Geliştirici Operasyonları

Brief Description Time duration from minutes to weeks suffixed by corresponding letter and whitespace separated. No unit of time can be omitted. Max values are enforced for minutes, hours, and days, and a max length for weeks. Case is ignored. The string should match completely from start to end. E...

Various RegEx expressions that work with Semantic Versioning,

Match segmented paths with '\' and '/' escaped by '\'

Swiss VAT Numbers

Wordpress shortcode regular expression

Flexible Name Matching This algorithm will match name-formatted strings to a minimum accuracy of 3 correct characters per value. Firstname Lastname ...

if a file has questions and answers, it can detect questions

Регулярное выражение. От 1 до 15 символов, включая пробелы, исключая спец символы. На любых языках.

gtgtg

Matches multiline entries (e.g. those containing exception stack traces or just multiline values) in a PHP error log produced by error_log().

Example: "/lowercase HELLO .:uppercase ::weather london" Match #1 prefix: / command: lowercase arguments: HELLO...

this is for matching integers from 0 to 255

rss filter, deluge, ncore Episodes and Seasons

Medicare Beneficiary Identifier (MBI) Format https://www.cms.gov/medicare/new-medicare-card/understanding-the-mbi-with-format.pdf

Simple AWS ARN Regex