acepts 1.000 and 1000

This matches a ASP Cookieless SessionId. Useful if, for example, after deprecating Cookieless sessions you want to redirect any clients with a cached sessionId to the plain url.

Find all BR tags in a string

preg_math_all only. ex.: http://doman.com, http://doman.com/, http://doman.com/?query=1,http://doman.com?query=1, domain.com, doman.com?query=1 and other

gutoregex

Splits a line into three parts: completed sentences from the previous line, any complete sentences, and any uncompleted sentences.

This regular expression will match the version string of a debian package

a simple url regex which prevents matching of a trailing ">" (the html representation of a closeing angle bracket ">")

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

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

Matches every polynomial you want ;)

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

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