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<h1>Source code for rdflib.namespace</h1><div class="highlight"><pre>
<span class="kn">from</span> <span class="nn">rdflib.py3compat</span> <span class="kn">import</span> <span class="n">format_doctest_out</span>
<span class="n">__doc__</span> <span class="o">=</span> <span class="n">format_doctest_out</span><span class="p">(</span><span class="s">"""</span>
<span class="s">===================</span>
<span class="s">Namespace Utilities</span>
<span class="s">===================</span>
<span class="s">RDFLib provides mechanisms for managing Namespaces.</span>
<span class="s">In particular, there is a :class:`~rdflib.namespace.Namespace` class</span>
<span class="s">that takes as its argument the base URI of the namespace.</span>
<span class="s">.. code-block:: pycon</span>
<span class="s"> >>> from rdflib.namespace import Namespace</span>
<span class="s"> >>> owl = Namespace('http://www.w3.org/2002/07/owl#')</span>
<span class="s">Fully qualified URIs in the namespace can be constructed either by attribute</span>
<span class="s">or by dictionary access on Namespace instances:</span>
<span class="s">.. code-block:: pycon</span>
<span class="s"> >>> owl.seeAlso</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://www.w3.org/2002/07/owl#seeAlso')</span>
<span class="s"> >>> owl['seeAlso']</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://www.w3.org/2002/07/owl#seeAlso')</span>
<span class="s">Automatic handling of unknown predicates</span>
<span class="s">-----------------------------------------</span>
<span class="s">As a programming convenience, a namespace binding is automatically</span>
<span class="s">created when :class:`rdflib.term.URIRef` predicates are added to the graph.</span>
<span class="s">Importable namespaces</span>
<span class="s">-----------------------</span>
<span class="s">The following namespaces are available by directly importing from rdflib:</span>
<span class="s">* RDF</span>
<span class="s">* RDFS</span>
<span class="s">* OWL</span>
<span class="s">* XSD</span>
<span class="s">* FOAF</span>
<span class="s">* SKOS</span>
<span class="s">* DOAP</span>
<span class="s">* DC</span>
<span class="s">* DCTERMS</span>
<span class="s">* VOID</span>
<span class="s">.. code-block:: pycon</span>
<span class="s"> >>> from rdflib import OWL</span>
<span class="s"> >>> OWL.seeAlso</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://www.w3.org/2002/07/owl#seeAlso')</span>
<span class="s">"""</span><span class="p">)</span>
<span class="kn">import</span> <span class="nn">logging</span>
<span class="n">_logger</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="n">__name__</span><span class="p">)</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">from</span> <span class="nn">urlparse</span> <span class="kn">import</span> <span class="n">urljoin</span><span class="p">,</span> <span class="n">urldefrag</span>
<span class="kn">from</span> <span class="nn">urllib</span> <span class="kn">import</span> <span class="n">pathname2url</span>
<span class="kn">from</span> <span class="nn">rdflib.term</span> <span class="kn">import</span> <span class="n">URIRef</span><span class="p">,</span> <span class="n">Variable</span><span class="p">,</span> <span class="n">_XSD_PFX</span><span class="p">,</span> <span class="n">_is_valid_uri</span>
<span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span>
<span class="s">'is_ncname'</span><span class="p">,</span> <span class="s">'split_uri'</span><span class="p">,</span> <span class="s">'Namespace'</span><span class="p">,</span>
<span class="s">'ClosedNamespace'</span><span class="p">,</span> <span class="s">'NamespaceManager'</span><span class="p">,</span>
<span class="s">'XMLNS'</span><span class="p">,</span> <span class="s">'RDF'</span><span class="p">,</span> <span class="s">'RDFS'</span><span class="p">,</span> <span class="s">'XSD'</span><span class="p">,</span> <span class="s">'OWL'</span><span class="p">,</span>
<span class="s">'SKOS'</span><span class="p">,</span> <span class="s">'DOAP'</span><span class="p">,</span> <span class="s">'FOAF'</span><span class="p">,</span> <span class="s">'DC'</span><span class="p">,</span> <span class="s">'DCTERMS'</span><span class="p">,</span> <span class="s">'VOID'</span><span class="p">]</span>
<div class="viewcode-block" id="Namespace"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.Namespace">[docs]</a><span class="k">class</span> <span class="nc">Namespace</span><span class="p">(</span><span class="nb">unicode</span><span class="p">):</span>
<span class="n">__doc__</span> <span class="o">=</span> <span class="n">format_doctest_out</span><span class="p">(</span><span class="s">"""</span>
<span class="s"> Utility class for quickly generating URIRefs with a common prefix</span>
<span class="s"> >>> from rdflib import Namespace</span>
<span class="s"> >>> n = Namespace("http://example.org/")</span>
<span class="s"> >>> n.Person # as attribute</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/Person')</span>
<span class="s"> >>> n['first-name'] # as item - for things that are not valid python identifiers</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/first-name')</span>
<span class="s"> """</span><span class="p">)</span>
<div class="viewcode-block" id="Namespace.__new__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.Namespace.__new__">[docs]</a> <span class="k">def</span> <span class="nf">__new__</span><span class="p">(</span><span class="n">cls</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">rt</span> <span class="o">=</span> <span class="nb">unicode</span><span class="o">.</span><span class="n">__new__</span><span class="p">(</span><span class="n">cls</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">UnicodeDecodeError</span><span class="p">:</span>
<span class="n">rt</span> <span class="o">=</span> <span class="nb">unicode</span><span class="o">.</span><span class="n">__new__</span><span class="p">(</span><span class="n">cls</span><span class="p">,</span> <span class="n">value</span><span class="p">,</span> <span class="s">'utf-8'</span><span class="p">)</span>
<span class="k">return</span> <span class="n">rt</span>
</div>
<span class="nd">@property</span>
<div class="viewcode-block" id="Namespace.title"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.Namespace.title">[docs]</a> <span class="k">def</span> <span class="nf">title</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="n">URIRef</span><span class="p">(</span><span class="bp">self</span> <span class="o">+</span> <span class="s">'title'</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Namespace.term"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.Namespace.term">[docs]</a> <span class="k">def</span> <span class="nf">term</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
<span class="c"># need to handle slices explicitly because of __getitem__ override</span>
<span class="k">return</span> <span class="n">URIRef</span><span class="p">(</span><span class="bp">self</span> <span class="o">+</span> <span class="p">(</span><span class="n">name</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="nb">basestring</span><span class="p">)</span> <span class="k">else</span> <span class="s">''</span><span class="p">))</span>
</div>
<div class="viewcode-block" id="Namespace.__getitem__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.Namespace.__getitem__">[docs]</a> <span class="k">def</span> <span class="nf">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">term</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Namespace.__getattr__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.Namespace.__getattr__">[docs]</a> <span class="k">def</span> <span class="nf">__getattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
<span class="k">if</span> <span class="n">name</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s">"__"</span><span class="p">):</span> <span class="c"># ignore any special Python names!</span>
<span class="k">raise</span> <span class="ne">AttributeError</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">term</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Namespace.__repr__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.Namespace.__repr__">[docs]</a> <span class="k">def</span> <span class="nf">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="s">"Namespace(</span><span class="si">%s</span><span class="s">)"</span><span class="o">%</span><span class="nb">unicode</span><span class="o">.</span><span class="n">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
</div></div>
<span class="k">class</span> <span class="nc">URIPattern</span><span class="p">(</span><span class="nb">unicode</span><span class="p">):</span>
<span class="n">__doc__</span> <span class="o">=</span> <span class="n">format_doctest_out</span><span class="p">(</span><span class="s">"""</span>
<span class="s"> Utility class for creating URIs according to some pattern</span>
<span class="s"> This supports either new style formatting with .format</span>
<span class="s"> or old-style with </span><span class="si">%%</span><span class="s"> operator</span>
<span class="s"> >>> u=URIPattern("http://example.org/</span><span class="si">%%</span><span class="s">s/</span><span class="si">%%</span><span class="s">d/resource")</span>
<span class="s"> >>> u</span><span class="si">%%</span><span class="s">('books', 12345)</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/books/12345/resource')</span>
<span class="s"> """</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">__new__</span><span class="p">(</span><span class="n">cls</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">rt</span> <span class="o">=</span> <span class="nb">unicode</span><span class="o">.</span><span class="n">__new__</span><span class="p">(</span><span class="n">cls</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">UnicodeDecodeError</span><span class="p">:</span>
<span class="n">rt</span> <span class="o">=</span> <span class="nb">unicode</span><span class="o">.</span><span class="n">__new__</span><span class="p">(</span><span class="n">cls</span><span class="p">,</span> <span class="n">value</span><span class="p">,</span> <span class="s">'utf-8'</span><span class="p">)</span>
<span class="k">return</span> <span class="n">rt</span>
<span class="k">def</span> <span class="nf">__mod__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="k">return</span> <span class="n">URIRef</span><span class="p">(</span><span class="nb">unicode</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">__mod__</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">))</span>
<span class="k">def</span> <span class="nf">format</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="k">return</span> <span class="n">URIRef</span><span class="p">(</span><span class="nb">unicode</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">))</span>
<span class="k">def</span> <span class="nf">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="s">"URIPattern(</span><span class="si">%r</span><span class="s">)"</span><span class="o">%</span><span class="nb">unicode</span><span class="o">.</span><span class="n">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<div class="viewcode-block" id="ClosedNamespace"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.ClosedNamespace">[docs]</a><span class="k">class</span> <span class="nc">ClosedNamespace</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> A namespace with a closed list of members</span>
<span class="sd"> Trying to create terms not listen is an error</span>
<span class="sd"> """</span>
<div class="viewcode-block" id="ClosedNamespace.__init__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.ClosedNamespace.__init__">[docs]</a> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">uri</span><span class="p">,</span> <span class="n">terms</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">uri</span> <span class="o">=</span> <span class="n">uri</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__uris</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="n">terms</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__uris</span><span class="p">[</span><span class="n">t</span><span class="p">]</span> <span class="o">=</span> <span class="n">URIRef</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">uri</span> <span class="o">+</span> <span class="n">t</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ClosedNamespace.term"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.ClosedNamespace.term">[docs]</a> <span class="k">def</span> <span class="nf">term</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
<span class="n">uri</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">__uris</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
<span class="k">if</span> <span class="n">uri</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span>
<span class="s">"term '</span><span class="si">%s</span><span class="s">' not in namespace '</span><span class="si">%s</span><span class="s">'"</span> <span class="o">%</span> <span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">uri</span><span class="p">))</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="n">uri</span>
</div>
<div class="viewcode-block" id="ClosedNamespace.__getitem__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.ClosedNamespace.__getitem__">[docs]</a> <span class="k">def</span> <span class="nf">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">term</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ClosedNamespace.__getattr__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.ClosedNamespace.__getattr__">[docs]</a> <span class="k">def</span> <span class="nf">__getattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
<span class="k">if</span> <span class="n">name</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s">"__"</span><span class="p">):</span> <span class="c"># ignore any special Python names!</span>
<span class="k">raise</span> <span class="ne">AttributeError</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">term</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ClosedNamespace.__str__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.ClosedNamespace.__str__">[docs]</a> <span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">str</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">uri</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ClosedNamespace.__repr__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.ClosedNamespace.__repr__">[docs]</a> <span class="k">def</span> <span class="nf">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="s">"""rdf.namespace.ClosedNamespace('</span><span class="si">%s</span><span class="s">')"""</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">uri</span><span class="p">)</span>
</div></div>
<span class="k">class</span> <span class="nc">_RDFNamespace</span><span class="p">(</span><span class="n">ClosedNamespace</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Closed namespace for RDF terms</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="nb">super</span><span class="p">(</span><span class="n">_RDFNamespace</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span>
<span class="n">URIRef</span><span class="p">(</span><span class="s">"http://www.w3.org/1999/02/22-rdf-syntax-ns#"</span><span class="p">),</span>
<span class="n">terms</span><span class="o">=</span><span class="p">[</span>
<span class="c"># Syntax Names</span>
<span class="s">"RDF"</span><span class="p">,</span> <span class="s">"Description"</span><span class="p">,</span> <span class="s">"ID"</span><span class="p">,</span> <span class="s">"about"</span><span class="p">,</span> <span class="s">"parseType"</span><span class="p">,</span>
<span class="s">"resource"</span><span class="p">,</span> <span class="s">"li"</span><span class="p">,</span> <span class="s">"nodeID"</span><span class="p">,</span> <span class="s">"datatype"</span><span class="p">,</span>
<span class="c"># RDF Classes</span>
<span class="s">"Seq"</span><span class="p">,</span> <span class="s">"Bag"</span><span class="p">,</span> <span class="s">"Alt"</span><span class="p">,</span> <span class="s">"Statement"</span><span class="p">,</span> <span class="s">"Property"</span><span class="p">,</span>
<span class="s">"List"</span><span class="p">,</span> <span class="s">"PlainLiteral"</span><span class="p">,</span>
<span class="c"># RDF Properties</span>
<span class="s">"subject"</span><span class="p">,</span> <span class="s">"predicate"</span><span class="p">,</span> <span class="s">"object"</span><span class="p">,</span> <span class="s">"type"</span><span class="p">,</span>
<span class="s">"value"</span><span class="p">,</span> <span class="s">"first"</span><span class="p">,</span> <span class="s">"rest"</span><span class="p">,</span>
<span class="c"># and _n where n is a non-negative integer</span>
<span class="c"># RDF Resources</span>
<span class="s">"nil"</span><span class="p">,</span>
<span class="c"># Added in RDF 1.1</span>
<span class="s">"XMLLiteral"</span><span class="p">,</span> <span class="s">"HTML"</span><span class="p">,</span> <span class="s">"langString"</span><span class="p">]</span>
<span class="p">)</span>
<span class="k">def</span> <span class="nf">term</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">i</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
<span class="k">return</span> <span class="n">URIRef</span><span class="p">(</span><span class="s">"</span><span class="si">%s</span><span class="s">_</span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">uri</span><span class="p">,</span> <span class="n">i</span><span class="p">))</span>
<span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
<span class="k">return</span> <span class="nb">super</span><span class="p">(</span><span class="n">_RDFNamespace</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">term</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
<span class="n">RDF</span> <span class="o">=</span> <span class="n">_RDFNamespace</span><span class="p">()</span>
<span class="n">RDFS</span> <span class="o">=</span> <span class="n">ClosedNamespace</span><span class="p">(</span>
<span class="n">uri</span><span class="o">=</span><span class="n">URIRef</span><span class="p">(</span><span class="s">"http://www.w3.org/2000/01/rdf-schema#"</span><span class="p">),</span>
<span class="n">terms</span><span class="o">=</span><span class="p">[</span>
<span class="s">"Resource"</span><span class="p">,</span> <span class="s">"Class"</span><span class="p">,</span> <span class="s">"subClassOf"</span><span class="p">,</span> <span class="s">"subPropertyOf"</span><span class="p">,</span> <span class="s">"comment"</span><span class="p">,</span> <span class="s">"label"</span><span class="p">,</span>
<span class="s">"domain"</span><span class="p">,</span> <span class="s">"range"</span><span class="p">,</span> <span class="s">"seeAlso"</span><span class="p">,</span> <span class="s">"isDefinedBy"</span><span class="p">,</span> <span class="s">"Literal"</span><span class="p">,</span> <span class="s">"Container"</span><span class="p">,</span>
<span class="s">"ContainerMembershipProperty"</span><span class="p">,</span> <span class="s">"member"</span><span class="p">,</span> <span class="s">"Datatype"</span><span class="p">]</span>
<span class="p">)</span>
<span class="n">OWL</span> <span class="o">=</span> <span class="n">Namespace</span><span class="p">(</span><span class="s">'http://www.w3.org/2002/07/owl#'</span><span class="p">)</span>
<span class="n">XSD</span> <span class="o">=</span> <span class="n">Namespace</span><span class="p">(</span><span class="n">_XSD_PFX</span><span class="p">)</span>
<span class="n">SKOS</span> <span class="o">=</span> <span class="n">Namespace</span><span class="p">(</span><span class="s">'http://www.w3.org/2004/02/skos/core#'</span><span class="p">)</span>
<span class="n">DOAP</span> <span class="o">=</span> <span class="n">Namespace</span><span class="p">(</span><span class="s">'http://usefulinc.com/ns/doap#'</span><span class="p">)</span>
<span class="n">FOAF</span> <span class="o">=</span> <span class="n">Namespace</span><span class="p">(</span><span class="s">'http://xmlns.com/foaf/0.1/'</span><span class="p">)</span>
<span class="n">DC</span> <span class="o">=</span> <span class="n">Namespace</span><span class="p">(</span><span class="s">'http://purl.org/dc/elements/1.1/'</span><span class="p">)</span>
<span class="n">DCTERMS</span> <span class="o">=</span> <span class="n">Namespace</span><span class="p">(</span><span class="s">'http://purl.org/dc/terms/'</span><span class="p">)</span>
<span class="n">VOID</span> <span class="o">=</span> <span class="n">Namespace</span><span class="p">(</span><span class="s">'http://rdfs.org/ns/void#'</span><span class="p">)</span>
<div class="viewcode-block" id="NamespaceManager"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.NamespaceManager">[docs]</a><span class="k">class</span> <span class="nc">NamespaceManager</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Class for managing prefix => namespace mappings</span>
<span class="sd"> Sample usage from FuXi ...</span>
<span class="sd"> .. code-block:: python</span>
<span class="sd"> ruleStore = N3RuleStore(additionalBuiltins=additionalBuiltins)</span>
<span class="sd"> nsMgr = NamespaceManager(Graph(ruleStore))</span>
<span class="sd"> ruleGraph = Graph(ruleStore,namespace_manager=nsMgr)</span>
<span class="sd"> and ...</span>
<span class="sd"> .. code-block:: pycon</span>
<span class="sd"> >>> import rdflib</span>
<span class="sd"> >>> from rdflib import Graph</span>
<span class="sd"> >>> from rdflib.namespace import Namespace, NamespaceManager</span>
<span class="sd"> >>> exNs = Namespace('http://example.com/')</span>
<span class="sd"> >>> namespace_manager = NamespaceManager(Graph())</span>
<span class="sd"> >>> namespace_manager.bind('ex', exNs, override=False)</span>
<span class="sd"> >>> g = Graph()</span>
<span class="sd"> >>> g.namespace_manager = namespace_manager</span>
<span class="sd"> >>> all_ns = [n for n in g.namespace_manager.namespaces()]</span>
<span class="sd"> >>> assert ('ex', rdflib.term.URIRef('http://example.com/')) in all_ns</span>
<span class="sd"> >>></span>
<span class="sd"> """</span>
<div class="viewcode-block" id="NamespaceManager.__init__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.NamespaceManager.__init__">[docs]</a> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">graph</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">graph</span> <span class="o">=</span> <span class="n">graph</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__cache</span> <span class="o">=</span> <span class="p">{}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__log</span> <span class="o">=</span> <span class="bp">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s">"xml"</span><span class="p">,</span> <span class="s">u"http://www.w3.org/XML/1998/namespace"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s">"rdf"</span><span class="p">,</span> <span class="n">RDF</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s">"rdfs"</span><span class="p">,</span> <span class="n">RDFS</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s">"xsd"</span><span class="p">,</span> <span class="n">XSD</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="NamespaceManager.reset"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.NamespaceManager.reset">[docs]</a> <span class="k">def</span> <span class="nf">reset</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__cache</span> <span class="o">=</span> <span class="p">{}</span>
</div>
<span class="k">def</span> <span class="nf">__get_store</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">graph</span><span class="o">.</span><span class="n">store</span>
<span class="n">store</span> <span class="o">=</span> <span class="nb">property</span><span class="p">(</span><span class="n">__get_store</span><span class="p">)</span>
<div class="viewcode-block" id="NamespaceManager.qname"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.NamespaceManager.qname">[docs]</a> <span class="k">def</span> <span class="nf">qname</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">uri</span><span class="p">):</span>
<span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span><span class="p">,</span> <span class="n">name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">compute_qname</span><span class="p">(</span><span class="n">uri</span><span class="p">)</span>
<span class="k">if</span> <span class="n">prefix</span> <span class="o">==</span> <span class="s">""</span><span class="p">:</span>
<span class="k">return</span> <span class="n">name</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="s">":"</span><span class="o">.</span><span class="n">join</span><span class="p">((</span><span class="n">prefix</span><span class="p">,</span> <span class="n">name</span><span class="p">))</span>
</div>
<div class="viewcode-block" id="NamespaceManager.normalizeUri"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.NamespaceManager.normalizeUri">[docs]</a> <span class="k">def</span> <span class="nf">normalizeUri</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">rdfTerm</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Takes an RDF Term and 'normalizes' it into a QName (using the</span>
<span class="sd"> registered prefix) or (unlike compute_qname) the Notation 3</span>
<span class="sd"> form for URIs: <...URI...></span>
<span class="sd"> """</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">namespace</span><span class="p">,</span> <span class="n">name</span> <span class="o">=</span> <span class="n">split_uri</span><span class="p">(</span><span class="n">rdfTerm</span><span class="p">)</span>
<span class="n">namespace</span> <span class="o">=</span> <span class="n">URIRef</span><span class="p">(</span><span class="nb">unicode</span><span class="p">(</span><span class="n">namespace</span><span class="p">))</span>
<span class="k">except</span><span class="p">:</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">rdfTerm</span><span class="p">,</span> <span class="n">Variable</span><span class="p">):</span>
<span class="k">return</span> <span class="s">"?</span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="n">rdfTerm</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="s">"<</span><span class="si">%s</span><span class="s">>"</span> <span class="o">%</span> <span class="n">rdfTerm</span>
<span class="n">prefix</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">prefix</span><span class="p">(</span><span class="n">namespace</span><span class="p">)</span>
<span class="k">if</span> <span class="n">prefix</span> <span class="ow">is</span> <span class="bp">None</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">rdfTerm</span><span class="p">,</span> <span class="n">Variable</span><span class="p">):</span>
<span class="k">return</span> <span class="s">"?</span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="n">rdfTerm</span>
<span class="k">elif</span> <span class="n">prefix</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="s">"<</span><span class="si">%s</span><span class="s">>"</span> <span class="o">%</span> <span class="n">rdfTerm</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">qNameParts</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">compute_qname</span><span class="p">(</span><span class="n">rdfTerm</span><span class="p">)</span>
<span class="k">return</span> <span class="s">':'</span><span class="o">.</span><span class="n">join</span><span class="p">([</span><span class="n">qNameParts</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">qNameParts</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]])</span>
</div>
<div class="viewcode-block" id="NamespaceManager.compute_qname"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.NamespaceManager.compute_qname">[docs]</a> <span class="k">def</span> <span class="nf">compute_qname</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">uri</span><span class="p">,</span> <span class="n">generate</span><span class="o">=</span><span class="bp">True</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">_is_valid_uri</span><span class="p">(</span><span class="n">uri</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">'"</span><span class="si">%s</span><span class="s">" does not look like a valid URI, I cannot serialize this. Perhaps you wanted to urlencode it?'</span><span class="o">%</span><span class="n">uri</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">uri</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">__cache</span><span class="p">:</span>
<span class="n">namespace</span><span class="p">,</span> <span class="n">name</span> <span class="o">=</span> <span class="n">split_uri</span><span class="p">(</span><span class="n">uri</span><span class="p">)</span>
<span class="n">namespace</span> <span class="o">=</span> <span class="n">URIRef</span><span class="p">(</span><span class="n">namespace</span><span class="p">)</span>
<span class="n">prefix</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">prefix</span><span class="p">(</span><span class="n">namespace</span><span class="p">)</span>
<span class="k">if</span> <span class="n">prefix</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">generate</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span>
<span class="s">"No known prefix for </span><span class="si">%s</span><span class="s"> and generate=False"</span><span class="p">)</span>
<span class="n">num</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">while</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">prefix</span> <span class="o">=</span> <span class="s">"ns</span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="n">num</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">namespace</span><span class="p">(</span><span class="n">prefix</span><span class="p">):</span>
<span class="k">break</span>
<span class="n">num</span> <span class="o">+=</span> <span class="mi">1</span>
<span class="bp">self</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__cache</span><span class="p">[</span><span class="n">uri</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__cache</span><span class="p">[</span><span class="n">uri</span><span class="p">]</span>
</div>
<div class="viewcode-block" id="NamespaceManager.bind"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.NamespaceManager.bind">[docs]</a> <span class="k">def</span> <span class="nf">bind</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span><span class="p">,</span> <span class="n">override</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">replace</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
<span class="sd">"""bind a given namespace to the prefix</span>
<span class="sd"> if override, rebind, even if the given namespace is already</span>
<span class="sd"> bound to another prefix.</span>
<span class="sd"> if replace, replace any existing prefix with the new namespace</span>
<span class="sd"> """</span>
<span class="n">namespace</span> <span class="o">=</span> <span class="n">URIRef</span><span class="p">(</span><span class="nb">unicode</span><span class="p">(</span><span class="n">namespace</span><span class="p">))</span>
<span class="c"># When documenting explain that override only applies in what cases</span>
<span class="k">if</span> <span class="n">prefix</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">prefix</span> <span class="o">=</span> <span class="s">''</span>
<span class="n">bound_namespace</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">namespace</span><span class="p">(</span><span class="n">prefix</span><span class="p">)</span>
<span class="c"># Check if the bound_namespace contains a URI</span>
<span class="c"># and if so convert it into a URIRef for comparison</span>
<span class="c"># This is to prevent duplicate namespaces with the</span>
<span class="c"># same URI</span>
<span class="k">if</span> <span class="n">bound_namespace</span><span class="p">:</span>
<span class="n">bound_namespace</span> <span class="o">=</span> <span class="n">URIRef</span><span class="p">(</span><span class="n">bound_namespace</span><span class="p">)</span>
<span class="k">if</span> <span class="n">bound_namespace</span> <span class="ow">and</span> <span class="n">bound_namespace</span> <span class="o">!=</span> <span class="n">namespace</span><span class="p">:</span>
<span class="k">if</span> <span class="n">replace</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span><span class="p">)</span>
<span class="k">return</span>
<span class="c"># prefix already in use for different namespace</span>
<span class="c">#</span>
<span class="c"># append number to end of prefix until we find one</span>
<span class="c"># that's not in use.</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">prefix</span><span class="p">:</span>
<span class="n">prefix</span> <span class="o">=</span> <span class="s">"default"</span>
<span class="n">num</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">while</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">new_prefix</span> <span class="o">=</span> <span class="s">"</span><span class="si">%s%s</span><span class="s">"</span> <span class="o">%</span> <span class="p">(</span><span class="n">prefix</span><span class="p">,</span> <span class="n">num</span><span class="p">)</span>
<span class="n">tnamespace</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">namespace</span><span class="p">(</span><span class="n">new_prefix</span><span class="p">)</span>
<span class="k">if</span> <span class="n">tnamespace</span> <span class="ow">and</span> <span class="n">namespace</span> <span class="o">==</span> <span class="n">URIRef</span><span class="p">(</span><span class="n">tnamespace</span><span class="p">):</span>
<span class="c"># the prefix is already bound to the correct</span>
<span class="c"># namespace</span>
<span class="k">return</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">namespace</span><span class="p">(</span><span class="n">new_prefix</span><span class="p">):</span>
<span class="k">break</span>
<span class="n">num</span> <span class="o">+=</span> <span class="mi">1</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="n">new_prefix</span><span class="p">,</span> <span class="n">namespace</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">bound_prefix</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">prefix</span><span class="p">(</span><span class="n">namespace</span><span class="p">)</span>
<span class="k">if</span> <span class="n">bound_prefix</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">bound_prefix</span> <span class="o">==</span> <span class="n">prefix</span><span class="p">:</span>
<span class="k">pass</span> <span class="c"># already bound</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">if</span> <span class="n">override</span> <span class="ow">or</span> <span class="n">bound_prefix</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s">"_"</span><span class="p">):</span> <span class="c"># or a generated</span>
<span class="c"># prefix</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="NamespaceManager.namespaces"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.NamespaceManager.namespaces">[docs]</a> <span class="k">def</span> <span class="nf">namespaces</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">for</span> <span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">namespaces</span><span class="p">():</span>
<span class="n">namespace</span> <span class="o">=</span> <span class="n">URIRef</span><span class="p">(</span><span class="n">namespace</span><span class="p">)</span>
<span class="k">yield</span> <span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span>
</div>
<div class="viewcode-block" id="NamespaceManager.absolutize"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.NamespaceManager.absolutize">[docs]</a> <span class="k">def</span> <span class="nf">absolutize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">uri</span><span class="p">,</span> <span class="n">defrag</span><span class="o">=</span><span class="mi">1</span><span class="p">):</span>
<span class="n">base</span> <span class="o">=</span> <span class="n">urljoin</span><span class="p">(</span><span class="s">"file:"</span><span class="p">,</span> <span class="n">pathname2url</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">getcwd</span><span class="p">()))</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">urljoin</span><span class="p">(</span><span class="s">"</span><span class="si">%s</span><span class="s">/"</span> <span class="o">%</span> <span class="n">base</span><span class="p">,</span> <span class="n">uri</span><span class="p">,</span> <span class="n">allow_fragments</span><span class="o">=</span><span class="ow">not</span> <span class="n">defrag</span><span class="p">)</span>
<span class="k">if</span> <span class="n">defrag</span><span class="p">:</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">urldefrag</span><span class="p">(</span><span class="n">result</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">defrag</span><span class="p">:</span>
<span class="k">if</span> <span class="n">uri</span> <span class="ow">and</span> <span class="n">uri</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="o">==</span> <span class="s">"#"</span> <span class="ow">and</span> <span class="n">result</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="o">!=</span> <span class="s">"#"</span><span class="p">:</span>
<span class="n">result</span> <span class="o">=</span> <span class="s">"</span><span class="si">%s</span><span class="s">#"</span> <span class="o">%</span> <span class="n">result</span>
<span class="k">return</span> <span class="n">URIRef</span><span class="p">(</span><span class="n">result</span><span class="p">)</span>
<span class="c"># From: http://www.w3.org/TR/REC-xml#NT-CombiningChar</span>
<span class="c">#</span>
<span class="c"># * Name start characters must have one of the categories Ll, Lu, Lo,</span>
<span class="c"># Lt, Nl.</span>
<span class="c">#</span>
<span class="c"># * Name characters other than Name-start characters must have one of</span>
<span class="c"># the categories Mc, Me, Mn, Lm, or Nd.</span>
<span class="c">#</span>
<span class="c"># * Characters in the compatibility area (i.e. with character code</span>
<span class="c"># greater than #xF900 and less than #xFFFE) are not allowed in XML</span>
<span class="c"># names.</span>
<span class="c">#</span>
<span class="c"># * Characters which have a font or compatibility decomposition</span>
<span class="c"># (i.e. those with a "compatibility formatting tag" in field 5 of the</span>
<span class="c"># database -- marked by field 5 beginning with a "<") are not allowed.</span>
<span class="c">#</span>
<span class="c"># * The following characters are treated as name-start characters rather</span>
<span class="c"># than name characters, because the property file classifies them as</span>
<span class="c"># Alphabetic: [#x02BB-#x02C1], #x0559, #x06E5, #x06E6.</span>
<span class="c">#</span>
<span class="c"># * Characters #x20DD-#x20E0 are excluded (in accordance with Unicode</span>
<span class="c"># 2.0, section 5.14).</span>
<span class="c">#</span>
<span class="c"># * Character #x00B7 is classified as an extender, because the property</span>
<span class="c"># list so identifies it.</span>
<span class="c">#</span>
<span class="c"># * Character #x0387 is added as a name character, because #x00B7 is its</span>
<span class="c"># canonical equivalent.</span>
<span class="c">#</span>
<span class="c"># * Characters ':' and '_' are allowed as name-start characters.</span>
<span class="c">#</span>
<span class="c"># * Characters '-' and '.' are allowed as name characters.</span>
</div></div>
<span class="kn">from</span> <span class="nn">unicodedata</span> <span class="kn">import</span> <span class="n">category</span>
<span class="n">NAME_START_CATEGORIES</span> <span class="o">=</span> <span class="p">[</span><span class="s">"Ll"</span><span class="p">,</span> <span class="s">"Lu"</span><span class="p">,</span> <span class="s">"Lo"</span><span class="p">,</span> <span class="s">"Lt"</span><span class="p">,</span> <span class="s">"Nl"</span><span class="p">]</span>
<span class="n">NAME_CATEGORIES</span> <span class="o">=</span> <span class="n">NAME_START_CATEGORIES</span> <span class="o">+</span> <span class="p">[</span><span class="s">"Mc"</span><span class="p">,</span> <span class="s">"Me"</span><span class="p">,</span> <span class="s">"Mn"</span><span class="p">,</span> <span class="s">"Lm"</span><span class="p">,</span> <span class="s">"Nd"</span><span class="p">]</span>
<span class="n">ALLOWED_NAME_CHARS</span> <span class="o">=</span> <span class="p">[</span><span class="s">u"</span><span class="se">\u00B7</span><span class="s">"</span><span class="p">,</span> <span class="s">u"</span><span class="se">\u0387</span><span class="s">"</span><span class="p">,</span> <span class="s">u"-"</span><span class="p">,</span> <span class="s">u"."</span><span class="p">,</span> <span class="s">u"_"</span><span class="p">]</span>
<span class="c"># http://www.w3.org/TR/REC-xml-names/#NT-NCName</span>
<span class="c"># [4] NCName ::= (Letter | '_') (NCNameChar)* /* An XML Name, minus</span>
<span class="c"># the ":" */</span>
<span class="c"># [5] NCNameChar ::= Letter | Digit | '.' | '-' | '_' | CombiningChar</span>
<span class="c"># | Extender</span>
<div class="viewcode-block" id="is_ncname"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.is_ncname">[docs]</a><span class="k">def</span> <span class="nf">is_ncname</span><span class="p">(</span><span class="n">name</span><span class="p">):</span>
<span class="n">first</span> <span class="o">=</span> <span class="n">name</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">if</span> <span class="n">first</span> <span class="o">==</span> <span class="s">"_"</span> <span class="ow">or</span> <span class="n">category</span><span class="p">(</span><span class="n">first</span><span class="p">)</span> <span class="ow">in</span> <span class="n">NAME_START_CATEGORIES</span><span class="p">:</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">xrange</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">name</span><span class="p">)):</span>
<span class="n">c</span> <span class="o">=</span> <span class="n">name</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">category</span><span class="p">(</span><span class="n">c</span><span class="p">)</span> <span class="ow">in</span> <span class="n">NAME_CATEGORIES</span><span class="p">:</span>
<span class="k">if</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">ALLOWED_NAME_CHARS</span><span class="p">:</span>
<span class="k">continue</span>
<span class="k">return</span> <span class="mi">0</span>
<span class="c"># if in compatibility area</span>
<span class="c"># if decomposition(c)!='':</span>
<span class="c"># return 0</span>
<span class="k">return</span> <span class="mi">1</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="mi">0</span>
</div>
<span class="n">XMLNS</span> <span class="o">=</span> <span class="s">"http://www.w3.org/XML/1998/namespace"</span>
<div class="viewcode-block" id="split_uri"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.namespace.split_uri">[docs]</a><span class="k">def</span> <span class="nf">split_uri</span><span class="p">(</span><span class="n">uri</span><span class="p">):</span>
<span class="k">if</span> <span class="n">uri</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="n">XMLNS</span><span class="p">):</span>
<span class="k">return</span> <span class="p">(</span><span class="n">XMLNS</span><span class="p">,</span> <span class="n">uri</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="n">XMLNS</span><span class="p">)[</span><span class="mi">1</span><span class="p">])</span>
<span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">uri</span><span class="p">)</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">xrange</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">length</span><span class="p">):</span>
<span class="n">c</span> <span class="o">=</span> <span class="n">uri</span><span class="p">[</span><span class="o">-</span><span class="n">i</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">category</span><span class="p">(</span><span class="n">c</span><span class="p">)</span> <span class="ow">in</span> <span class="n">NAME_CATEGORIES</span><span class="p">:</span>
<span class="k">if</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">ALLOWED_NAME_CHARS</span><span class="p">:</span>
<span class="k">continue</span>
<span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">xrange</span><span class="p">(</span><span class="o">-</span><span class="mi">1</span> <span class="o">-</span> <span class="n">i</span><span class="p">,</span> <span class="n">length</span><span class="p">):</span>
<span class="k">if</span> <span class="n">category</span><span class="p">(</span><span class="n">uri</span><span class="p">[</span><span class="n">j</span><span class="p">])</span> <span class="ow">in</span> <span class="n">NAME_START_CATEGORIES</span> <span class="ow">or</span> <span class="n">uri</span><span class="p">[</span><span class="n">j</span><span class="p">]</span> <span class="o">==</span> <span class="s">"_"</span><span class="p">:</span>
<span class="n">ns</span> <span class="o">=</span> <span class="n">uri</span><span class="p">[:</span><span class="n">j</span><span class="p">]</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">ns</span><span class="p">:</span>
<span class="k">break</span>
<span class="n">ln</span> <span class="o">=</span> <span class="n">uri</span><span class="p">[</span><span class="n">j</span><span class="p">:]</span>
<span class="k">return</span> <span class="p">(</span><span class="n">ns</span><span class="p">,</span> <span class="n">ln</span><span class="p">)</span>
<span class="k">break</span>
<span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">"Can't split '</span><span class="si">%s</span><span class="s">'"</span> <span class="o">%</span> <span class="n">uri</span><span class="p">)</span></div>
</pre></div>
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