Re: JSON Profile and the Integer Data-Type

Hi Steven,

I've been doing a bit of thinking around the way one should infer a datatype.

If we get "3", according to the spec, as it stands today, it should be treated as a string since "3" is a _javascript_ string.

If we get 3, according to the spec, as it stands today, it should be treated as an integer...

If we get 3.12, we should get a double.

The number range in javscript is defined by ECMA - there's a good article here: http://www.hunlock.com/blogs/The_Complete_Javascript_Number_Reference

That said, what matters most of course is the XML definition of #integer and #double since it's what XACML uses.

Integer is defined here: http://www.w3.org/TR/xmlschema-2/#integer

double is defined here: http://www.w3.org/TR/xmlschema-2/#double

In what you wrote, you start from the Javscript / JSON definition. I'd rather start from the XML definition of the numbers since this is what is expected by the XACML standard.

Does that make more sense? I would need to rephrase the profile text to the following:

_javascript_ ”Number” with no fractional portion and within the integer range defined in the XML schema at http://www.w3.org/TR/xmlschema-2/#integer

Happy holidays!

David.

On Tue, Dec 11, 2012 at 12:22 AM, Steven Legg <> wrote:

Hi David,

I'm not sure how to interpret this description of values of the integer

data-type in section 3.4.1 of the JSON profile:

    _javascript_ ”Number” with no fractional portion and within integer range

By referencing _javascript_ it seems to be suggesting that a JSON number should

be parsed as a double and treated as an integer if that double value is a whole

number in the range of a 53-bit integer value. If that is the case, then 1.23e3

is an integer value and 9223372036854775807 is a double value. Can you clarify

what you intended ?

Regards,

Steven

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