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"

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...

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

#starts with abc, has 123 and ends with xyz abc123xyz

10 digits

Check if the string has a minimum of 6 characters, at least 1 upper case char, at least 1 lower case char and at least 1 number with no spaces.

Matches a geolocation coordinates string consisting of latitude and longitude separated by a comma with up to 7 decimal places precision.

Matches more thoroughly than others in the library. Based on http://stackoverflow.com/questions/164979/uk-postcode-regex-comprehensive. Matches: W1A 1AA, WC2H 7LT, SE50EG

Validates valid Oracle Stored Procedure names

Parses Smokey messages