Mercurial > repos > shellac > guppy_basecaller
diff env/lib/python3.7/site-packages/rdflib/plugins/parsers/nquads.py @ 5:9b1c78e6ba9c draft default tip
"planemo upload commit 6c0a8142489327ece472c84e558c47da711a9142"
| author | shellac |
|---|---|
| date | Mon, 01 Jun 2020 08:59:25 -0400 |
| parents | 79f47841a781 |
| children |
line wrap: on
line diff
--- a/env/lib/python3.7/site-packages/rdflib/plugins/parsers/nquads.py Thu May 14 16:47:39 2020 -0400 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,91 +0,0 @@ -""" -This is a rdflib plugin for parsing NQuad files into Conjunctive -graphs that can be used and queried. The store that backs the graph -*must* be able to handle contexts. - ->>> from rdflib import ConjunctiveGraph, URIRef, Namespace ->>> g = ConjunctiveGraph() ->>> data = open("test/nquads.rdflib/example.nquads", "rb") ->>> g.parse(data, format="nquads") # doctest:+ELLIPSIS -<Graph identifier=... (<class 'rdflib.graph.Graph'>)> ->>> assert len(g.store) == 449 ->>> # There should be 16 separate contexts ->>> assert len([x for x in g.store.contexts()]) == 16 ->>> # is the name of entity E10009 "Arco Publications"? ->>> # (in graph http://bibliographica.org/entity/E10009) ->>> # Looking for: ->>> # <http://bibliographica.org/entity/E10009> ->>> # <http://xmlns.com/foaf/0.1/name> ->>> # "Arco Publications" ->>> # <http://bibliographica.org/entity/E10009> ->>> s = URIRef("http://bibliographica.org/entity/E10009") ->>> FOAF = Namespace("http://xmlns.com/foaf/0.1/") ->>> assert(g.value(s, FOAF.name).eq("Arco Publications")) -""" - -from codecs import getreader - -from rdflib.py3compat import b - -from rdflib import ConjunctiveGraph - -# Build up from the NTriples parser: -from rdflib.plugins.parsers.ntriples import NTriplesParser -from rdflib.plugins.parsers.ntriples import ParseError -from rdflib.plugins.parsers.ntriples import r_tail -from rdflib.plugins.parsers.ntriples import r_wspace -from rdflib.plugins.parsers.ntriples import r_wspaces - -__all__ = ['NQuadsParser'] - - -class NQuadsParser(NTriplesParser): - - def parse(self, inputsource, sink, **kwargs): - """Parse f as an N-Triples file.""" - assert sink.store.context_aware, ("NQuadsParser must be given" - " a context aware store.") - self.sink = ConjunctiveGraph(store=sink.store, identifier=sink.identifier) - - source = inputsource.getByteStream() - - if not hasattr(source, 'read'): - raise ParseError("Item to parse must be a file-like object.") - - source = getreader('utf-8')(source) - - self.file = source - self.buffer = '' - while True: - self.line = __line = self.readline() - if self.line is None: - break - try: - self.parseline() - except ParseError as msg: - raise ParseError("Invalid line (%s):\n%r" % (msg, __line)) - - return self.sink - - def parseline(self): - self.eat(r_wspace) - if (not self.line) or self.line.startswith(('#')): - return # The line is empty or a comment - - subject = self.subject() - self.eat(r_wspace) - - predicate = self.predicate() - self.eat(r_wspace) - - obj = self.object() - self.eat(r_wspace) - - context = self.uriref() or self.nodeid() or self.sink.identifier - self.eat(r_tail) - - if self.line: - raise ParseError("Trailing garbage") - # Must have a context aware store - add on a normal Graph - # discards anything where the ctx != graph.identifier - self.sink.get_context(context).add((subject, predicate, obj))
