Re: [salud] New version of the ABNF-syntax

[[e-mail] (Dale R. Worley)]

[as an individual]

The current syntax is:

      alert-URN         = "urn:alert:" alert-identifier
      alert-identifier  = alert-category ":" alert-indication
      alert-category    = alert-name
      alert-indication  = alert-name *(":" alert-name)
      alert-name        = alert-label / private-name

One source of difficulty I am having is that I would like a
nonterminal that means "an <alert-name> that is part of an
<alert-indication> (but not an <alert-category>".  I have been
incorrectly using the term <alert-indication> for this nonterminal.

There are alternative ways to provide this nonterminal.  We could
introduce a new nonterminal:

      alert-URN         = "urn:alert:" alert-identifier
      alert-identifier  = alert-category ":" alert-indication
      alert-category    = alert-name
      alert-indication  = xxx *(":" xxx)
      xxx               = alert-name
      alert-name        = alert-label / private-name

Or we could change the meaning of alert-indication:

      alert-URN         = "urn:alert:" alert-identifier
      alert-identifier  = alert-category ":" alert-indication *(":" alert-indication)
      alert-category    = alert-name
      alert-indication  = alert-name
      alert-name        = alert-label / private-name

But I do not know what change would cause the fewest problems with the
rest of the draft text.

What do you recommend?

Dale