Simple name matching Matches english names only, you may add international characters to list of characters.

Detect various possible HTML linebreak tags (eg. )

http://www.r-project.org/mail.html

It may be useful inorder to replace those lines with li

Gets all parts of URL including port, username, password, fragment, query, and path

This will remove all facebook urls from a HTML string

Matches every polynomial you want ;)

This is not supported in Javascript! Works well for php, python. Examples: +91-8800119719, 08800119719, 8800119719, +918800119719 etc.

Last captured word available via group W. Last captured sentence available via group S. Last parenthesis stuff in 6th capturing group.

simple url regex which also prevents capture of a trailing ">" (the html representation of ">")