TempleScript: Subject Locator Patterns
Obviously I managed to send CatBert back into deep depression (he saw that coming, trust me).
While he sleeps in his favourite armchair, I can steal back my ideas and tuck them safely away into an academic paper. So maybe another RDFascist can entertain me with a negative review. As if a man with a vision would care.
Locator Patterns
Among the things I want to add to TempleScript are subject locator patterns. Here is the use case:
employee isa web:page
= myapp:employee # there the page is hosted
return
$id / * # return all properties
According to CatBert I would have to invoke this web page (called a congregator in TempleScript) via
That is not wrong per se, but much prettier would be:
http://my.app.com/employee/catbert
To achieve that, I simply allow to write
using captured buffers as in Perl 5.10 regular expressions. Analogous to Catalyst and many other MVC frameworks the controller employee now can intercept not only a single URL, but a whole family. A URI family as defined by the regular expression.
Virtual Ontology
This is not just a programming convenience; it makes it also clear that the totality of URIs I specify with these regular expression defines a new namespace of "things". A set of things which can be interpreted as ... topic map.
So in the above case
http://my.app.com/employee/catbert
would both be subject identifiers standing for the subjects in question.
In this sense, every web:page, and consequently every web:application conveys a new topic map. A virtual one, of course.
Further I am entitled to assert:
which subclasses ontology .
In this sense, a TempleScript web application is also a transformer: On the incoming side there are the subject locations for the web:pages, on the outgoing side the subject identifiers for the things generated.
And that has a couple of implications.

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