Creating en and em dashes from typewriter hyphens
This script is a stripped down and modified version of Autoquote.py.
Instead of converting typewriter quotes to typographic quotes, here we want to set up a system so that we can type and enter '-' when we just want a hyphen, '--' when we want an en-dash, and '---' when we want an em-dash. If you have something like '----' you'll probably end up with an em-dash followed by a hyphen.
There are no dialogs except for the message box at the end.