get the file extension of a given filename

Second line of the machine readable passport, based on the excellent article here - http://www.highprogrammer.com/alan/numbers/mrp.html

поиск в тексте всех ссылок на профили пользователей вконтакте. ссылки вида [id12345678|Name]

Validate Phone number even if contain country code

Exist a problem with simple regex in JS Solution from: https://www.safaribooksonline.com/library/view/regular-expressions-cookbook/9781449327453/ch09s10.html

List of EmailAddresses optionally allowing with personal i.e. "Personal Name "

Look for date objects in JSON returned from ASP.NET Web Forms.

Só aceita emails que comecem com letras ou números, tenha de 0 a 32 caracteres, letras, números, ponto ou hífen, antes do @

Valida se é um CPF ou um CNPJ válido, independente da máscara

To identify quoted strings, single terms as well as subtracting those types. Based on: http://stackoverflow.com/questions/1883188/google-like-search-query-tokenization-string-splitting

Selects Xml version and Encoding and whitespaces