yalias has a window with two buttons and a text widget. The
left button clears the widget (and is bound to the Escape
key). The right button matches the contents of the widget
against a series of regular expressions that the user has
previously specified in their $HOME/.yaliasrc, and executes
the specified command if it matches any of them.
PR: ports/56611
Submitted by: Tim Bishop <tim@bishnet.net>
