generator source-types

From: David Abrahams (dave_at_[hidden])
Date: 2005-02-10 14:20:58

I need to make a generator that will generate a given target from any
(unrestricted) source type at all. I'm not sure what to pass to
generators.register-standard in order to do that.

Also I notice that generators.register-standard requires at least one
source type, while class generator requires zero or more. Is that
really okay? What does it mean to build a generator for no source
types?

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com