Re: SKiCal ABNF Quirk

[Harald Alvestrand <Harald@xxxxxxxxxxxxx>]

At 22:36 06/09/2000 -0400, Bruce_Kahn@xxxxxxxx wrote:
> Ok, Ill admit Im no ABNF guru but I think the ABNF in the draft needs to 
> be changed to be 'proper'.  The format does not quite seem normal based on 
> my limited RFC 2445-2447 ABNF exposure but Ill see if I can put my finger 
> on it.  In the SKiCal draft the first example is:
>
>      Personroleparam  = "DIPROLE" "=" text
>                       ; It is RECOMMENDED that the text value be
>                       ; chosen from a list, as described in section 4
>                       ; of this memo. One example of such a list is
>                       ; given here:
>
>                        "PERFORMER"  ; Appearing at the event
>                        "CREATOR"    ; Not necessarily present
>                        "COMPOSER"
>                        "CONDUCTOR"
>                        "ARTIST"
>                        "EDITOR"
>                        "PRODUCER"
>                        "GUIDE"
>                        "SPEAKER"
>                        "CHAIR"
>                        "PRESENT"    ; At the event
>                        "REFERENCED" ; Not present at the event
>                        "INVITED"

As written, a Personroleparam can only have the value
DIPROLE=<any 
text>PERFORMERCREATORCOMPOSERCONDUCTORARTISTEDITORPRODUCERGUIDESPEAKERCHAIRPRESENTREFERENCEDINVITED, 
which is probably not what was intended.

If you want the examples to be examples, put a semicolon to the left of them.
If you don't, they are part of the grammar - and putting items one after 
the other means that they are concatenated, not that they are alternatives.

--
Harald Tveit Alvestrand, alvestrand@xxxxxxxxx
+47 41 44 29 94
Personal email: Harald@xxxxxxxxxxxxx