Re: dateTime.iso8601 format

...

 > http://www.xmlrpc.com/spec <http://www.xmlrpc.com/spec> also says:

 > Don't assume a timezone. It should be specified by the server in
 > its documentation what assumptions it makes about timezones.

 > So that means I leave off the "Z" and just document it's UTC?

Yes. As a matter of fact the datetime is underspecified in xmlrpc, as 
you have a misnomer and a single example. The consensus is you are only 
allowed to use the same format as given in the example.

 > Are you aware of any client libraries that would care about the "Z" on
 > the dateTime.iso8601 data type? I.e., fail to parse an XMLRPC payload
 > if a "Z" was included?

YMMV. My guess is most would still parse the full payload, but maybe not 
parse correctly the datetime items.

...

 > I suppose if I wanted to I could just document that some element is a
 > String data type but that string represents a time stamp.

sure enough

...

 > Hum, on a related note. I was wondering today how to represent a NULL
 > or undefined string vs. an empty string. So, for a stuct:

<struct>
<member>
<name>foo</name>
<value>
<string></string>
</value>
</member>
<struct>

 > Is that an empty string or undefined/null string?

 > What about <int></int>?

empty string. undefined strings are not part of the spec. using 
<value></value> also amounts to the same. But there is a proposed 
extension for a <nil/> tag - some libs support it. 
(http://ontosys.com/xml-rpc/extensions.php)

<int></int> is not valid. Conforming libs should refuse it.

of course, here too you could define your own meta-type for carrying the 
"null" info, via eg. a struct (cumbersome) or some application-local 
convention (not generic)

bye
Gaetano



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