CAP 10: Bad other-props constuction/ABNF

[Bruce_Kahn@xxxxxxxxxxxxxxxx]

In drafting some new text to propose
to resolve another issue I ran across a problem w/the ABNF for other-props.
 The Draft 10-12Jan2003 has:

 other-props  = *(";"
x-prop) *(";" iana-prop) *(";" x-prop)

which does work as expected
when actually used.  In the context of 2445 corrections it is defined
to be used as:

calprops   = 2*(

           ; 'prodid' and 'version' are both REQUIRED,
           ; but MUST NOT occur more than once.
           ;
             prodid /version /

           ; These are optional, but MUST NOT
occur
           ; more than once.
           ;
             calscale      
 /
             method      
   /
             cmd        
    /

           ; These are optional, and may occur
more
           ; than once.
           ;
             target / other-props

(I already told Doug about
the missing closing paren...)

So the resulting iCalendar
from this SHOULD be:

BEGIN:VCALENDAR
PRODID:-//someone's prodid
VERSION:2.0
CMD;ID=creation01:CREATE
TARGET:cal.example.com
FRODO-LIVES:TRUE
X-LDC-NOTES:Buy Notes R6
...

but thats NOT what the
ABNF says.  By the ABNF I should prefix ALL X- properties and IANA
properties with a ';':

BEGIN:VCALENDAR
PRODID:-//someone's prodid
VERSION:2.0
CMD;ID=creation01:CREATE
TARGET:cal.example.com
;FRODO-LIVES:TRUE
;X-LDC-NOTES:Buy Notes
R6
...

This violates 2445 parsing
rules for a basic content line:

     contentline      
 = name *(";" param ) ":" value CRLF

by making the name property
NULL and turning the actual property name into a paramter name.  The
ABNF for other-props needs to be fixed.  I _think_ that changing it
to:

 other-props  = *(
           
  x-prop [";" other-props] /
           
  iana-prop [";" other-props]
           
     )

should work.  I have
_not_ taken the time to check this against all references in the draft
as Im on a short leash today and Im working to get a well formed proposal
out for the other pressing issues. 

Bruce
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Bruce Kahn                  
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