Slightly updated draft

Folks,

Henry pointed out a bug in the current editor's draft, so I tweaked it
just slightly. The environment section of 4.1 now reads:

  The environment of a pipeline step is the empty environment with both
  the standard modifications and these modifications:

    * All of the declared inputs of the pipeline are added to the
      readable ports in the environment.

    * If the pipeline has exactly one input, that input is the default
      readable port, otherwise the default readable port is undefined.

That corrects the oversight that didn't make pipeline inputs readable
and adds the, presumably uncontroversial, feature that in a pipeline
with a single input, that input is the default for steps in the
pipeline.

I also added p:ignore-prefixes to p:declare-step per some email earlier.

                                        Be seeing you,
                                          norm

-- 
Norman Walsh
XML Standards Architect
Sun Microsystems, Inc.