[Config4gnu-developer] a new approach to "parsers"

[Jason L. <jl...@me...>]

How do you feel about making a change to the "parsers" & "unparsers" so that
they always read their input on STDIN and output on STDOUT?

Advantages:
 - remote administration... the caller of the parser can read the file from
a remote computer and pipes it to the parser. Parsers do not need to know
how to read remote files

Disadvantages:
 - parsers cannot work with multiple files
   possible workaround: for configuration files with "includes", output it
as an "external" node
 - parsers can't run external commands to implement changes

Jason