It accepts phone numbers of the form 0XX XXX XX XX (stylized here, it doesn't really accept spaces). Also, it can detect the international area code (e.g. +41 OR 0041 for Switzerland). It's not a good idea to rely on the groups (because they do not work for this reason. At ALL.

Search group "link=>text" in tags "a"

This regex defines the end and the beginning of a WindowsUpdate.log event.

match bibtex entries

Match all certificate in a chain from a OpenSSL s_client output. Need for this come from a script that should be able to verify the root CA of a URL.

valida el formato del registro federal de contribuyentes de México.

/** this regex should match most cases where the user forgets to put an operator somewhere and add an OR, it still does not handle nested square brackets but those are invalid anyways this page has an explanation https://regex101.com/r/fF7wO1/2 * the way this regex grabs conflicting matches is b...

This regex matches java line end comments started with "//" and ignores such ones that are within String literals. (NO SUFFICIENT TESTING WAS DONE TO GUARANTEE 100% SAFETY)

Very basic. My first proper REGEX. 6 Digit ID starting with e. Must be lowercase. must start with an e (can change to another letter)

Email validator from http://haacked.com/archive/2007/08/21/i-knew-how-to-validate-an-email-address-until-i.aspx/

Looks for string formated like an IP address.

get contents of src attribute

just lovely