The file name validation algorithm from MS KB905231, I assumed the prohibited suffixes included the file extension. I.e. 'foo.doc.files' would not match but 'foo.files.doc' would.

This will parse the fields portion of a mysqldump lines such as: INSERT INTO users VALUES (42,'Bob',12.34,NULL,'It\'s ok!');

URL validation with http/https

Key/Value pairs with multiline support

For better exception capturing

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

Allow get the value of the some attributes from a html text

following input formats work-- 10am to 3pm 1am - 2pm 12pm-3pm

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

US numbers only

PHP

Validate Phone number even if contain country code

This expression converts any 3- or 4 digit timevalue to a value with colon between hours and minutes. So 345 is converted to 3:45 and 1500 is converted to 15:00

Nickname validation. Only: letters _ One line. Tested with RoR