added test and fixed #312

RDFLib · Dec 30, 2013 · 1cfcfda · 1cfcfda
1 parent 6b4622d
commit 1cfcfda
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Showing 2 changed files with 16 additions and 2 deletions.
diff --git a/rdflib/plugins/parsers/notation3.py b/rdflib/plugins/parsers/notation3.py
@@ -1165,8 +1165,11 @@ def uri_ref2(self, argstr, i, res):
                     if pfx == "_":  # Magic prefix 2001/05/30, can be changed
                         res.append(self.anonymousNode(ln))
                         return j
-                    self.BadSyntax(argstr, i,
-                        "Prefix \"%s:\" not bound" % (pfx))
+                    if not self.turtle and pfx == "":
+                        ns = join(self._baseURI or "", "#")
+                    else:
+                        self.BadSyntax(argstr, i,
+                                       "Prefix \"%s:\" not bound" % (pfx))
             symb = self._store.newSymbol(ns + ln)
             if symb in self._variables:
                 res.append(self._variables[symb])

diff --git a/test/test_n3.py b/test/test_n3.py
@@ -218,5 +218,16 @@ def testSingleQuotedLiterals(self):
             for _, _, o in g:
                 self.assertEqual(o, Literal('o'))
 
+    def testEmptyPrefix(self):
+
+        # this is issue https://github.com/RDFLib/rdflib/issues/312
+        g1 = Graph()
+        g1.parse(data = ":a :b :c .", format='n3')
+
+        g2 = Graph()
+        g2.parse(data = "@prefix : <#> . :a :b :c .", format='n3')
+
+        assert set(g1) == set(g2), 'Document with declared empty prefix must match default #'
+
 if __name__ == '__main__':
     unittest.main()