OGC Features queryables bugfix + cleaner curie generation

[recalcitrantsupplant]

1. OGC Features bugfix for auto generated queryables.
2. Add upfront validation of curie -> URI and raise URI not found exception if appropriate.
3. Add special characters to those excluded from CURIE generation: "aeiou!@#$%^&*()_+-=,."

[lalewis1]

Looks good, seems to work fine.

However, I am still getting a parser issue in prez-ui, even
without any prefixes with '.'s in them.

Will add to the relevant issue thread.

probably safer not to have any of those characters in the prefixes anyway.

[lalewis1]

thanks. looks good

Actually, looking at the turtle spec https://www.w3.org/TR/turtle/#grammar-production-PN_PREFIX

it is illegal for a prefix to start with [0-9], which is I think what is causing the issues that I am experiencing.

still investigating

might need to revise the prefix generation further

[recalcitrantsupplant]

good catch, yes I think you're right. We'll probably end up with the ns[1-9] type auto generated prefixes from RDFLib in a lot of cases "2.0" -> "" -> ns1 etc.

[lalewis1]

@recalcitrantsupplant , I have implemented the prefix fix. you'll see that i am hashing the uri to get a prefix. I wonder if we could also do this in place of 'ns1' 'ns2' style prefixes? did you say that was an rdflib thing? or is that something we can control from Prez?

just thinking that it would stop the prefixes from changing. because you should always get the same prefix for the same URI