Validate cron lines (even the ones commented out)

From a (fairly large) list of User Agent strings, extract the OS, Browser, and Device Type.

Validates a RFC3339 DateTime format. Does not validates the Data

http://stackoverflow.com/questions/2362985/verifying-a-cron-expression-is-valid-in-java

Grabs the ID for the regex101.com permalink code. If a revision number is provided, grab that as well.

The BNF rules from RFC 5322 transformed to PCRE by Nikita Popov and described in the post http://nikic.github.io/2012/06/15/The-true-power-of-regular-expressions.html.

Regex used in Splunk to extract fields from Mikrotik FW. NOTES: Mikrotik must be configured to use "BSD Syslog" format FW rules must add, as log prefix, the action: drop accep reject etc...

Match Gmail Email

if you are as lazy as me and want to replace every "=$_POST['name'];" using Dreamweaver or any development tool that allows using regular expressions to search in current file/document.

Validates hexadecimal color codes based on the following rule set: Optionally starting with a hash. 3 or 6 characters in length. Using the [0-9a-f] character set.

Oltre a supportare le omocodie controlla in modo restrittivo il carattere relativo al mese di nascita

To get a variable name from a source code: The variable name is before the '=' (equal sign) This is the way to detect. Problem: Only 1 variable can get from 1 line. Unfortunately, this can get variable between after "//" and before ";" too. I made this for fake script debugger. Just get variable from source code and put that after last semicolon with so much tab and messagebox code for every line.

relative to absolute

Adds a non-breaking space between the last two words of sentences

A-Za-z\x{0600}-\x{06FF}\x{1000}-\x{1021}_-*

Semantic Versioning regex pattern according to Tom Preston-Werner http://semver.org/ https://github.com/mojombo/semver/blob/master/semver.md First version of this regex follows semver 2.0.0. Discussion of semver and this regex was posted on https://github.com/mojombo/semver.org/issues/59

Grabs sentences including terms like: e.g. z.b. Figs.These get caught in 1st capturing group. Problem: how to only accept matching sentences which contain pattern \b\d+[a-z]{0,2}\b?

Check "codice fiscale"

The following regular expression matches only letter a-z A-Z numbers 0-9 and a blank space for a given string.

Returns key/value pair of a url. Also works with google fonts which has additional information

Capture comma separated numbers, no matter if there are spaces before or after the commas.

sdfs sdfs FLBREV00022230 dsfsdfs sdfsf FLBREV00022234 In this case is false

Captures all fields from a CSV file's line. Can be customized with user-defined field separator and protecting character.

Matches distorted email addresses and converts them back to real ones.

Validate and capture dateTime parts, includes validation for leap years, range 1000-2999. Fixed bug

Checks for valid UK/British postcodes. There was another on here that had for some reason been upvoted, but it was actually incorrect as it worked on none of my valid own postcodes! Namely that it assumed two letters and a number (BS3) when you can have variations (M20). Allows for an optional space and separates the two parts into groups.

Created for purpose of reading an INI file in C# applications. Supports comments and comment escape characters. I plan to add more escape characters (such as \=). s - Section scp - Section Comment Prefix sc - Section Comment k - Key v - Value kvcp - KeyValue Comment Prefix kvc - KeyValue Comment cp - Comment Prefix c - Comment I am open to any suggestion that may improve upon this regex, and/or would allow me to learn more. Created by Raxdiam

MasterCard - ^5[1-5]\d+ Visa - ^4\d+ Amex - ^3[47]\d+ Discover - 6011|65|64...

looks for blank keys in the query string and remove it, in order to make shorter request.

Validates the two valid postal codes in Argentina

Validates CPA (Código Postal Argentino, spanish for Argentinian Postal Code).

Match a MasterCard with new range for 2017: 51-55 and 2221-2720 @incarnated

Validates that a DNS hostname is well-formed only. You will still need to check that the overall length of the hostname, including the implied trailing "." (if not present), does not exceed 255 bytes.

Matches version strings.

validator voor kenteken vb: 11-AA-BB

Validate a Json Web Token (JWT).

Valid and Invalid emails

Usage: "40%".replace(/\b(\d\.]+)[mkb%/ig, '$1')

This regex matches against season and series names