This allows multiple continuous strings of only alpha numeric characters & limiting punctuation to: ?().,'+ /:@-

Validate email addresses, including unicode email addresses, e.g. with Cyrillic, Arabic or Korean characters

Validate & split street address lines for countries where the street name is typically written first (e.g. Germany)

Validate & split street address lines for countries where the house number is typically written first (e.g. US or France)

RegExp matches each (combined) Unicode symbol, character, or emoji consecutively. Note: there are some edge cases where it does not combine some symbols that should be seen as one symbol (after Default Grapheme Cluster Boundary of UAX #29). For Unicode code point info see codepoints.net Also, see ...

Get the python substitution strings from inside of print statements. Replace the whole substitution string with {{ ArgumentName }} for use in a Jinja2 rendering. Supports fstrings...

Extract substitution parameters from python print strings works with fstrings old style format strings old style %(variable) strings

greedy or no greedy_**

Regex URL validation pattern

Regex to find URLs in text

Simple pattern for validating Cron Job descriptors in your JavaScript / TypeScript / ECMAScript projects. Includes support for date ranges, day ranges, digit ranges, divisors... all of the things you'd expect to encounter in possible Cron values.

This simply checks if the string is not empty spaces.

Original credit for this expression goes to: https://emailregex.com/

check the code

Need to FULLY Break Out EVERY Component of a URL? Like, as in "every constituent element individually accessible in its own named capture group?" Need it to be pre-optimized and fully ECMA-compliant? Want to see exhaustive unit tests proving these claims (144 are included; all 144 execute in 6.5ms. ...

HGVS Nomenclature Check for ClinVar Submissions

0x28C6A6DdF8fF8A47A90A69bfE75cd89904a14d71

This works against a list of hyperlinks from the 'USS Marmora (1862)' article You can include File: pages by removing the File:| from the regex. I could improve how the remaining query for urls containing index.php, for now I recommend splitting in your chosen programming language. ...

A regex to find if a postcode is in Auckland region (New Zealand)

ECMAScript simple regex for email validation