XProc Editors Draft 2007-07-19: Section 2.7 Comments

In the definition of the inherited environment, the discussion of 
options works for pipelines, but the definitions of readable 
ports/default readable port doesn't. (But maybe that's because pipelines 
aren't actually compound steps?)

I think that the readable ports in the inherited environment have to 
include the specified ports on the container step.

And if there's not a preceding sibling step element, the default 
readable port is the primary input port of the container step, or the 
environment of the container step.

If pipelines aren't classed as compound steps, then there ought to be a 
separate section in here that explicitly specifies the environment of a 
pipeline.

Jeni
-- 
Jeni Tennison
http://www.jenitennison.com