Clarification requested: optional parameter

[Andrew Arnott]

Optional parameters should be absent rather than empty, unless the parameter
specifically indicates that an empty value is permissible.

My interpretation, and from what I've seen what people do.
--
Andrew Arnott
"I [may] not agree with what you have to say, but I'll defend to the death
your right to say it." - S. G. Tallentyre


On Mon, Jun 29, 2009 at 7:52 AM, Jean-Noël Colin <jnc at info.fundp.ac.be>wrote:

> Hello,
> I would like to clarify something about optional parameters: does an
> optional parameter have to appear, but without value, or does it have to be
> skipped completely, or are both options valid?
>
> For instance, in authentication request, if I don't want to specify a
> claimed_id, do I simply not include the parameter in the list, or do I
> include it without value?
>
> openid.ns=http://specs.openid.net/auth/2.0
> openid.mode=checkid_immediate
> openid.claimed_id=
> openid.assoc_handle=thisisahandle
>
> vs
>
> openid.ns=http://specs.openid.net/auth/2.0
> openid.mode=checkid_immediate
> openid.assoc_handle=thisisahandle
>
> Best regards
>
> Jean-Noël Colin
>
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