#! /usr/bin/env python 

import string
import re
import thing
import notation3    # N3 parsers and generators, and RDF generator
import isodate

from thing import *

LITERAL_URI_prefix = "data:application/n3;"
DATE_NS_URI = "http://www.mnot.net/2002/01/11/date#"

__version__ = "0.2"


class BI_inSeconds(LightBuiltIn, Function, ReverseFunction):
    def evaluateObject(self, store, context, subj, subj_py):
        try:
            return store._fromPython(context, str(isodate.parse(subj_py)))
        except:
            return None


#  Register the string built-ins with the store
def register(store):
    str = store.internURI(DATE_NS_URI[:-1])
    str.internFrag("inSeconds", BI_inSeconds)