from rdf.sir import Literal, URIRef as URI
from rdflib.TripleStore import TripleStore as Store

"""Namespaces: Useful namespaces in an easy-to-access form."""
class Namespace:
        """A class so namespaced URIs can be abbreviated (like dc.subject).
        label provides the abbreviation that should be used on output)"""

        def __init__(self, prefix, label=''): 
                self.prefix = prefix; self.label = label
        def __getattr__(self, name): return URI(self.prefix + name)
        def __getitem__(self, name): return URI(self.prefix + name)
        
rdf = Namespace('http://www.w3.org/1999/02/22-rdf-syntax-ns#', 'rdf')
rdfs = Namespace('http://www.w3.org/2000/01/rdf-schema#', 'rdfs')
rss = Namespace('http://purl.org/rss/1.0/', 'rss')
daml = Namespace('http://www.daml.org/2001/03/daml+oil#', 'daml')
log = Namespace('http://www.w3.org/2000/10/swap/log#', 'log')
dc = Namespace('http://purl.org/dc/elements/1.1/', 'dc')
foaf = Namespace('http://xmlns.com/foaf/0.1/', 'foaf')
doc = Namespace('http://www.w3.org/2000/10/swap/pim/doc#', 'doc')
cc = Namespace('http://web.resource.org/cc/', 'cc')
content = Namespace('http://purl.org/rss/1.0/modules/content/', 'content')