Re: PROPOSAL: Errata text regarding defining a prefix of '_'

I agree that the technique described will work. I am surprised that you think it ok okay to change the bnode in the emitted triples. While you might not think it has a meaning, others may...

Toby Inkster <tai@g5n.co.uk> wrote:

>On Sat, 2009-11-14 at 12:06 -0600, Shane McCarron wrote:
>> My question is this:  How do you ensure that your implicit, 
>> automatically created bnode names never collide with a documents 
>> explicit, auto-vivified bnode names?  And should we have some sort of
>> a test case to ensure this happens? 
>
>It's not especially difficult. Here's one technique a parser could
>follow:
>
> When an explicitly named bnode is found, check if its name
> starts '_:bn'. If not, use it verbatim. But if so, replace
> the '_:bn' with '_:bnbn'.
>
> When a name is needed for an implicit bnode, give it one
> starting '_:bn' followed by numbers.
>
>You should find that this can never produce a collision. Of course if
>means that in some cases, explicitly named blank nodes in the input RDFa
>have different names in the output graph. But that's OK - RDF doesn't
>assign any meanings to the names of blank nodes.
>
>-- 
>Toby A Inkster
><mailto:mail@tobyinkster.co.uk>
><http://tobyinkster.co.uk>

Received on Saturday, 14 November 2009 22:29:06 UTC