Re: [TED] ACTION-385 DONE (Start document for the list of builtins)

Hi Jos,

thanks for your proposals!

The first two concrete proposals you mentioned for
each datatype are listed now as open issues on the
BLD built-ins wiki page [1]. They should be discussed
and decided upon within the whole group (during one of
our next telecons).

Best regards,
Paula

[1]  http://www.w3.org/2005/rules/wg/wiki/List_of_BLD_built-ins

Jos de Bruijn wrote:
> I believe this list of functions for manipulating data values and
> comparators for comparing existing data values is a good start.
>
> I think we need at least two additional categories of built-ins:
>
> * testing whether a specific value is of a specific datatype.
>
> E.g., isString/1 could be a built-in predicate whose extension is always
> the value space of xsd:string; i.e., it tests whether its argument is a
> string.
> I think we need such a predicate for each datatype.
>
> * testing whether a specific value is not of a specific datatype.
>
> E.g., isNotString/1 could be a built-in predicate whose extension is
> always the complement of the value space of xsd:string; i.e., it tests
> whether its argument is not a string.
> I think we need such a predicate for each datatype.
>
>
> Apart from that, we might want to think about having constructor functions.
> E.g., a built-in predicate constructDate/4 could be used for
> constructing xsd:date values; the first argument would be the return
> value (an xsd:date), the second argument would be the year, the third
> argument would be the month, and the fourth argument would be the day.
> If we were to implement it as a function, constructDate/3 would take a
> year, a month, and day as its arguments, and return an xsd:date.
>
>
> Best, Jos
>
>
>
> Paula-Lavinia Patranjan wrote:
>   
>> Hi,
>>
>> as discussed during our last telecon, I started a new list of
>> built-ins to be used for the next RIF-BLD document. The
>> current list [1] is based on the initial list [2] of functions and
>> operators from XQuery 1.0 and XPath 2.0 and the discussion
>> on built-ins within the group. I also started a list of open issues
>> to be discussed wrt. built-ins for BLD and, more general, other
>> RIF dialects, which is based on Dave's email [3] and the
>> discussion we had during the telecon this week.
>>
>> REWERSE holds its final annual meeting next week and I won't
>> be able to attend the next telecon, but will do my best to update
>> the current built-ins list based on your comments.
>>
>> I'm not quite sure about the desired structure of the document
>> for the final list of BLD built-ins, but we can discuss this issue
>> after we've decided upon the built-ins we want BLD to support.
>> At moment there is no link to the new page of BLD built-ins from
>> the working version of the BLD document.
>>
>> [1] http://www.w3.org/2005/rules/wg/wiki/List_of_BLD_built-ins
>> [2] http://www.w3.org/2005/rules/wg/wiki/List_of_functions_and_operators
>> [3] http://lists.w3.org/Archives/Public/public-rif-wg/2007Jul/0038.html
>>
>> Regards,
>> Paula
>>
>>
>>     
>
>

Received on Tuesday, 11 December 2007 15:19:08 UTC