Encontra qualquer preço presente num documento.

match ip address

Regular expression with named groups for email addresses

matches js files like app.js or jquery.min.js

check name thai

กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพภมยรลฤลวศษสหฬอฮ ref: http://www.utf8-chartable.de/unicode-utf8-table.pl?start=3584&number=128&utf8=0x

This regexp matches for example that: 10+10 10,0+9,9 10,0+9 10+9,9 allowed operations are: +,-,/,*...

designed to work specifically with the parser of the python dateutil package

http://www.pelagodesign.com/blog/2009/05/20/iso-8601-date-validation-that-doesnt-suck/

An example of a regex to use when wanting to remove special characters from a string