ditrit

Ditrit is a programmable application launcher that tries to "do the right thing" for any input. If ditrit is given an email address, it knows to launch your email client and compose an email to that address. Likewise, it knows to open URLs in your browser, text files in your text editor, and AIM screen names in your IM client. Users can easily add new mappings to the configuration file, which consists of template regexps and commands. Ditrit reads its input from stdin or from the X primary selection (the clipboard).