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<h1>Source code for rdflib.plugins.serializers.turtle</h1><div class="highlight"><pre>
<span class="sd">"""</span>
<span class="sd">Turtle RDF graph serializer for RDFLib.</span>
<span class="sd">See <http://www.w3.org/TeamSubmission/turtle/> for syntax specification.</span>
<span class="sd">"""</span>
<span class="kn">from</span> <span class="nn">collections</span> <span class="kn">import</span> <span class="n">defaultdict</span>
<span class="kn">from</span> <span class="nn">rdflib.term</span> <span class="kn">import</span> <span class="n">BNode</span><span class="p">,</span> <span class="n">Literal</span><span class="p">,</span> <span class="n">URIRef</span>
<span class="kn">from</span> <span class="nn">rdflib.exceptions</span> <span class="kn">import</span> <span class="n">Error</span>
<span class="kn">from</span> <span class="nn">rdflib.serializer</span> <span class="kn">import</span> <span class="n">Serializer</span>
<span class="kn">from</span> <span class="nn">rdflib.namespace</span> <span class="kn">import</span> <span class="n">RDF</span><span class="p">,</span> <span class="n">RDFS</span>
<span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s">'RecursiveSerializer'</span><span class="p">,</span> <span class="s">'TurtleSerializer'</span><span class="p">]</span>
<div class="viewcode-block" id="RecursiveSerializer"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.RecursiveSerializer">[docs]</a><span class="k">class</span> <span class="nc">RecursiveSerializer</span><span class="p">(</span><span class="n">Serializer</span><span class="p">):</span>
<span class="n">topClasses</span> <span class="o">=</span> <span class="p">[</span><span class="n">RDFS</span><span class="o">.</span><span class="n">Class</span><span class="p">]</span>
<span class="n">predicateOrder</span> <span class="o">=</span> <span class="p">[</span><span class="n">RDF</span><span class="o">.</span><span class="n">type</span><span class="p">,</span> <span class="n">RDFS</span><span class="o">.</span><span class="n">label</span><span class="p">]</span>
<span class="n">maxDepth</span> <span class="o">=</span> <span class="mi">10</span>
<span class="n">indentString</span> <span class="o">=</span> <span class="s">u" "</span>
<div class="viewcode-block" id="RecursiveSerializer.__init__"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.RecursiveSerializer.__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">store</span><span class="p">):</span>
<span class="nb">super</span><span class="p">(</span><span class="n">RecursiveSerializer</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">store</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stream</span> <span class="o">=</span> <span class="bp">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="RecursiveSerializer.addNamespace"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.RecursiveSerializer.addNamespace">[docs]</a> <span class="k">def</span> <span class="nf">addNamespace</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">uri</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">namespaces</span><span class="p">[</span><span class="n">prefix</span><span class="p">]</span> <span class="o">=</span> <span class="n">uri</span>
</div>
<div class="viewcode-block" id="RecursiveSerializer.checkSubject"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.RecursiveSerializer.checkSubject">[docs]</a> <span class="k">def</span> <span class="nf">checkSubject</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="p">):</span>
<span class="sd">"""Check to see if the subject should be serialized yet"""</span>
<span class="k">if</span> <span class="p">((</span><span class="bp">self</span><span class="o">.</span><span class="n">isDone</span><span class="p">(</span><span class="n">subject</span><span class="p">))</span>
<span class="ow">or</span> <span class="p">(</span><span class="n">subject</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_subjects</span><span class="p">)</span>
<span class="ow">or</span> <span class="p">((</span><span class="n">subject</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_topLevels</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">depth</span> <span class="o">></span> <span class="mi">1</span><span class="p">))</span>
<span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">URIRef</span><span class="p">)</span>
<span class="ow">and</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">depth</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">maxDepth</span><span class="p">))):</span>
<span class="k">return</span> <span class="bp">False</span>
<span class="k">return</span> <span class="bp">True</span>
</div>
<div class="viewcode-block" id="RecursiveSerializer.isDone"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.RecursiveSerializer.isDone">[docs]</a> <span class="k">def</span> <span class="nf">isDone</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="p">):</span>
<span class="sd">"""Return true if subject is serialized"""</span>
<span class="k">return</span> <span class="n">subject</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_serialized</span>
</div>
<div class="viewcode-block" id="RecursiveSerializer.orderSubjects"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.RecursiveSerializer.orderSubjects">[docs]</a> <span class="k">def</span> <span class="nf">orderSubjects</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">seen</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">subjects</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">for</span> <span class="n">classURI</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">topClasses</span><span class="p">:</span>
<span class="n">members</span> <span class="o">=</span> <span class="nb">list</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">subjects</span><span class="p">(</span><span class="n">RDF</span><span class="o">.</span><span class="n">type</span><span class="p">,</span> <span class="n">classURI</span><span class="p">))</span>
<span class="n">members</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span>
<span class="k">for</span> <span class="n">member</span> <span class="ow">in</span> <span class="n">members</span><span class="p">:</span>
<span class="n">subjects</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">member</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_topLevels</span><span class="p">[</span><span class="n">member</span><span class="p">]</span> <span class="o">=</span> <span class="bp">True</span>
<span class="n">seen</span><span class="p">[</span><span class="n">member</span><span class="p">]</span> <span class="o">=</span> <span class="bp">True</span>
<span class="n">recursable</span> <span class="o">=</span> <span class="p">[</span>
<span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">BNode</span><span class="p">),</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_references</span><span class="p">[</span><span class="n">subject</span><span class="p">],</span> <span class="n">subject</span><span class="p">)</span>
<span class="k">for</span> <span class="n">subject</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_subjects</span> <span class="k">if</span> <span class="n">subject</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">seen</span><span class="p">]</span>
<span class="n">recursable</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span>
<span class="n">subjects</span><span class="o">.</span><span class="n">extend</span><span class="p">([</span><span class="n">subject</span> <span class="k">for</span> <span class="p">(</span><span class="n">isbnode</span><span class="p">,</span> <span class="n">refs</span><span class="p">,</span> <span class="n">subject</span><span class="p">)</span> <span class="ow">in</span> <span class="n">recursable</span><span class="p">])</span>
<span class="k">return</span> <span class="n">subjects</span>
</div>
<div class="viewcode-block" id="RecursiveSerializer.preprocess"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.RecursiveSerializer.preprocess">[docs]</a> <span class="k">def</span> <span class="nf">preprocess</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">for</span> <span class="n">triple</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">triples</span><span class="p">((</span><span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">)):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">preprocessTriple</span><span class="p">(</span><span class="n">triple</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="RecursiveSerializer.preprocessTriple"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.RecursiveSerializer.preprocessTriple">[docs]</a> <span class="k">def</span> <span class="nf">preprocessTriple</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_references</span><span class="p">[</span><span class="n">o</span><span class="p">]</span><span class="o">+=</span><span class="mi">1</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_subjects</span><span class="p">[</span><span class="n">s</span><span class="p">]</span> <span class="o">=</span> <span class="bp">True</span>
</div>
<div class="viewcode-block" id="RecursiveSerializer.reset"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.RecursiveSerializer.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">depth</span> <span class="o">=</span> <span class="mi">0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lists</span> <span class="o">=</span> <span class="p">{}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">namespaces</span> <span class="o">=</span> <span class="p">{}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_references</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">int</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_serialized</span> <span class="o">=</span> <span class="p">{}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_subjects</span> <span class="o">=</span> <span class="p">{}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_topLevels</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">prefix</span><span class="p">,</span> <span class="n">ns</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="bp">self</span><span class="o">.</span><span class="n">addNamespace</span><span class="p">(</span><span class="n">prefix</span><span class="p">,</span> <span class="n">ns</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="RecursiveSerializer.buildPredicateHash"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.RecursiveSerializer.buildPredicateHash">[docs]</a> <span class="k">def</span> <span class="nf">buildPredicateHash</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Build a hash key by predicate to a list of objects for the given</span>
<span class="sd"> subject</span>
<span class="sd"> """</span>
<span class="n">properties</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</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">triples</span><span class="p">((</span><span class="n">subject</span><span class="p">,</span> <span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">)):</span>
<span class="n">oList</span> <span class="o">=</span> <span class="n">properties</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="p">[])</span>
<span class="n">oList</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">o</span><span class="p">)</span>
<span class="n">properties</span><span class="p">[</span><span class="n">p</span><span class="p">]</span> <span class="o">=</span> <span class="n">oList</span>
<span class="k">return</span> <span class="n">properties</span>
</div>
<div class="viewcode-block" id="RecursiveSerializer.sortProperties"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.RecursiveSerializer.sortProperties">[docs]</a> <span class="k">def</span> <span class="nf">sortProperties</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">properties</span><span class="p">):</span>
<span class="sd">"""Take a hash from predicate uris to lists of values.</span>
<span class="sd"> Sort the lists of values. Return a sorted list of properties."""</span>
<span class="c"># Sort object lists</span>
<span class="k">for</span> <span class="n">prop</span><span class="p">,</span> <span class="n">objects</span> <span class="ow">in</span> <span class="n">properties</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="n">objects</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span>
<span class="c"># Make sorted list of properties</span>
<span class="n">propList</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">seen</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">prop</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">predicateOrder</span><span class="p">:</span>
<span class="k">if</span> <span class="p">(</span><span class="n">prop</span> <span class="ow">in</span> <span class="n">properties</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">prop</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">seen</span><span class="p">):</span>
<span class="n">propList</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">prop</span><span class="p">)</span>
<span class="n">seen</span><span class="p">[</span><span class="n">prop</span><span class="p">]</span> <span class="o">=</span> <span class="bp">True</span>
<span class="n">props</span> <span class="o">=</span> <span class="n">properties</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span>
<span class="n">props</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span>
<span class="k">for</span> <span class="n">prop</span> <span class="ow">in</span> <span class="n">props</span><span class="p">:</span>
<span class="k">if</span> <span class="n">prop</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">seen</span><span class="p">:</span>
<span class="n">propList</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">prop</span><span class="p">)</span>
<span class="n">seen</span><span class="p">[</span><span class="n">prop</span><span class="p">]</span> <span class="o">=</span> <span class="bp">True</span>
<span class="k">return</span> <span class="n">propList</span>
</div>
<div class="viewcode-block" id="RecursiveSerializer.subjectDone"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.RecursiveSerializer.subjectDone">[docs]</a> <span class="k">def</span> <span class="nf">subjectDone</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="p">):</span>
<span class="sd">"""Mark a subject as done."""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_serialized</span><span class="p">[</span><span class="n">subject</span><span class="p">]</span> <span class="o">=</span> <span class="bp">True</span>
</div>
<div class="viewcode-block" id="RecursiveSerializer.indent"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.RecursiveSerializer.indent">[docs]</a> <span class="k">def</span> <span class="nf">indent</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">modifier</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
<span class="sd">"""Returns indent string multiplied by the depth"""</span>
<span class="k">return</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">depth</span> <span class="o">+</span> <span class="n">modifier</span><span class="p">)</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">indentString</span>
</div>
<div class="viewcode-block" id="RecursiveSerializer.write"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.RecursiveSerializer.write">[docs]</a> <span class="k">def</span> <span class="nf">write</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">text</span><span class="p">):</span>
<span class="sd">"""Write text in given encoding."""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stream</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">text</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">encoding</span><span class="p">,</span> <span class="s">'replace'</span><span class="p">))</span>
</div></div>
<span class="n">SUBJECT</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">VERB</span> <span class="o">=</span> <span class="mi">1</span>
<span class="n">OBJECT</span> <span class="o">=</span> <span class="mi">2</span>
<span class="n">_GEN_QNAME_FOR_DT</span> <span class="o">=</span> <span class="bp">False</span>
<span class="n">_SPACIOUS_OUTPUT</span> <span class="o">=</span> <span class="bp">False</span>
<div class="viewcode-block" id="TurtleSerializer"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer">[docs]</a><span class="k">class</span> <span class="nc">TurtleSerializer</span><span class="p">(</span><span class="n">RecursiveSerializer</span><span class="p">):</span>
<span class="n">short_name</span> <span class="o">=</span> <span class="s">"turtle"</span>
<span class="n">indentString</span> <span class="o">=</span> <span class="s">' '</span>
<div class="viewcode-block" id="TurtleSerializer.__init__"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.__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">store</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_ns_rewrite</span> <span class="o">=</span> <span class="p">{}</span>
<span class="nb">super</span><span class="p">(</span><span class="n">TurtleSerializer</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">store</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">keywords</span> <span class="o">=</span> <span class="p">{</span>
<span class="n">RDF</span><span class="o">.</span><span class="n">type</span><span class="p">:</span> <span class="s">'a'</span>
<span class="p">}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stream</span> <span class="o">=</span> <span class="bp">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_spacious</span> <span class="o">=</span> <span class="n">_SPACIOUS_OUTPUT</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.addNamespace"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.addNamespace">[docs]</a> <span class="k">def</span> <span class="nf">addNamespace</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="c"># Turtle does not support prefix that start with _</span>
<span class="c"># if they occur in the graph, rewrite to p_blah</span>
<span class="c"># this is more complicated since we need to make sure p_blah</span>
<span class="c"># does not already exist. And we register namespaces as we go, i.e.</span>
<span class="c"># we may first see a triple with prefix _9 - rewrite it to p_9</span>
<span class="c"># and then later find a triple with a "real" p_9 prefix</span>
<span class="c"># so we need to keep track of ns rewrites we made so far.</span>
<span class="k">if</span> <span class="p">(</span><span class="n">prefix</span> <span class="o">></span> <span class="s">''</span> <span class="ow">and</span> <span class="n">prefix</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">==</span> <span class="s">'_'</span><span class="p">)</span> \
<span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespaces</span><span class="o">.</span><span class="n">get</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="o">!=</span> <span class="n">namespace</span><span class="p">:</span>
<span class="k">if</span> <span class="n">prefix</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_ns_rewrite</span><span class="p">:</span>
<span class="n">p</span> <span class="o">=</span> <span class="s">"p"</span> <span class="o">+</span> <span class="n">prefix</span>
<span class="k">while</span> <span class="n">p</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespaces</span><span class="p">:</span>
<span class="n">p</span> <span class="o">=</span> <span class="s">"p"</span> <span class="o">+</span> <span class="n">p</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_ns_rewrite</span><span class="p">[</span><span class="n">prefix</span><span class="p">]</span> <span class="o">=</span> <span class="n">p</span>
<span class="n">prefix</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_ns_rewrite</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">prefix</span><span class="p">,</span> <span class="n">prefix</span><span class="p">)</span>
<span class="nb">super</span><span class="p">(</span><span class="n">TurtleSerializer</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">addNamespace</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="n">prefix</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.reset"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.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="nb">super</span><span class="p">(</span><span class="n">TurtleSerializer</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_shortNames</span> <span class="o">=</span> <span class="p">{}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_started</span> <span class="o">=</span> <span class="bp">False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_ns_rewrite</span> <span class="o">=</span> <span class="p">{}</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.serialize"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.serialize">[docs]</a> <span class="k">def</span> <span class="nf">serialize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">stream</span><span class="p">,</span> <span class="n">base</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
<span class="n">spacious</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stream</span> <span class="o">=</span> <span class="n">stream</span>
<span class="bp">self</span><span class="o">.</span><span class="n">base</span> <span class="o">=</span> <span class="n">base</span>
<span class="k">if</span> <span class="n">spacious</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_spacious</span> <span class="o">=</span> <span class="n">spacious</span>
<span class="bp">self</span><span class="o">.</span><span class="n">preprocess</span><span class="p">()</span>
<span class="n">subjects_list</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">orderSubjects</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">startDocument</span><span class="p">()</span>
<span class="n">firstTime</span> <span class="o">=</span> <span class="bp">True</span>
<span class="k">for</span> <span class="n">subject</span> <span class="ow">in</span> <span class="n">subjects_list</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">isDone</span><span class="p">(</span><span class="n">subject</span><span class="p">):</span>
<span class="k">continue</span>
<span class="k">if</span> <span class="n">firstTime</span><span class="p">:</span>
<span class="n">firstTime</span> <span class="o">=</span> <span class="bp">False</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">statement</span><span class="p">(</span><span class="n">subject</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">firstTime</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">'</span><span class="se">\n</span><span class="s">'</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">endDocument</span><span class="p">()</span>
<span class="n">stream</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">u"</span><span class="se">\n</span><span class="s">"</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s">'ascii'</span><span class="p">))</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.preprocessTriple"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.preprocessTriple">[docs]</a> <span class="k">def</span> <span class="nf">preprocessTriple</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">triple</span><span class="p">):</span>
<span class="nb">super</span><span class="p">(</span><span class="n">TurtleSerializer</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">preprocessTriple</span><span class="p">(</span><span class="n">triple</span><span class="p">)</span>
<span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="n">node</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">triple</span><span class="p">):</span>
<span class="k">if</span> <span class="n">node</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">keywords</span><span class="p">:</span>
<span class="k">continue</span>
<span class="c"># Don't use generated prefixes for subjects and objects</span>
<span class="bp">self</span><span class="o">.</span><span class="n">getQName</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">gen_prefix</span><span class="o">=</span><span class="p">(</span><span class="n">i</span> <span class="o">==</span> <span class="n">VERB</span><span class="p">))</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">Literal</span><span class="p">)</span> <span class="ow">and</span> <span class="n">node</span><span class="o">.</span><span class="n">datatype</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">getQName</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">datatype</span><span class="p">,</span> <span class="n">gen_prefix</span><span class="o">=</span><span class="n">_GEN_QNAME_FOR_DT</span><span class="p">)</span>
<span class="n">p</span> <span class="o">=</span> <span class="n">triple</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">BNode</span><span class="p">):</span> <span class="c"># hmm - when is P ever a bnode?</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_references</span><span class="p">[</span><span class="n">p</span><span class="p">]</span><span class="o">+=</span><span class="mi">1</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.getQName"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.getQName">[docs]</a> <span class="k">def</span> <span class="nf">getQName</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">gen_prefix</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="nb">isinstance</span><span class="p">(</span><span class="n">uri</span><span class="p">,</span> <span class="n">URIRef</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">None</span>
<span class="n">parts</span> <span class="o">=</span> <span class="bp">None</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">parts</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">compute_qname</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="n">gen_prefix</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="c"># is the uri a namespace in itself?</span>
<span class="n">pfx</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">store</span><span class="o">.</span><span class="n">prefix</span><span class="p">(</span><span class="n">uri</span><span class="p">)</span>
<span class="k">if</span> <span class="n">pfx</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">parts</span> <span class="o">=</span> <span class="p">(</span><span class="n">pfx</span><span class="p">,</span> <span class="n">uri</span><span class="p">,</span> <span class="s">''</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="c"># nothing worked</span>
<span class="k">return</span> <span class="bp">None</span>
<span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span><span class="p">,</span> <span class="n">local</span> <span class="o">=</span> <span class="n">parts</span>
<span class="c"># QName cannot end with .</span>
<span class="k">if</span> <span class="n">local</span><span class="o">.</span><span class="n">endswith</span><span class="p">(</span><span class="s">"."</span><span class="p">):</span> <span class="k">return</span> <span class="bp">None</span>
<span class="n">prefix</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">addNamespace</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="s">u'</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="n">prefix</span><span class="p">,</span> <span class="n">local</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.startDocument"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.startDocument">[docs]</a> <span class="k">def</span> <span class="nf">startDocument</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">_started</span> <span class="o">=</span> <span class="bp">True</span>
<span class="n">ns_list</span> <span class="o">=</span> <span class="nb">sorted</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">namespaces</span><span class="o">.</span><span class="n">items</span><span class="p">())</span>
<span class="k">for</span> <span class="n">prefix</span><span class="p">,</span> <span class="n">uri</span> <span class="ow">in</span> <span class="n">ns_list</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">indent</span><span class="p">()</span> <span class="o">+</span> <span class="s">'@prefix </span><span class="si">%s</span><span class="s">: <</span><span class="si">%s</span><span class="s">> .</span><span class="se">\n</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">uri</span><span class="p">))</span>
<span class="k">if</span> <span class="n">ns_list</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">_spacious</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">'</span><span class="se">\n</span><span class="s">'</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.endDocument"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.endDocument">[docs]</a> <span class="k">def</span> <span class="nf">endDocument</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_spacious</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">'</span><span class="se">\n</span><span class="s">'</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.statement"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.statement">[docs]</a> <span class="k">def</span> <span class="nf">statement</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">subjectDone</span><span class="p">(</span><span class="n">subject</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">s_squared</span><span class="p">(</span><span class="n">subject</span><span class="p">)</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">s_default</span><span class="p">(</span><span class="n">subject</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.s_default"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.s_default">[docs]</a> <span class="k">def</span> <span class="nf">s_default</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">'</span><span class="se">\n</span><span class="s">'</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">indent</span><span class="p">())</span>
<span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">SUBJECT</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">predicateList</span><span class="p">(</span><span class="n">subject</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">' .'</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">True</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.s_squared"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.s_squared">[docs]</a> <span class="k">def</span> <span class="nf">s_squared</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="p">):</span>
<span class="k">if</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_references</span><span class="p">[</span><span class="n">subject</span><span class="p">]</span> <span class="o">></span> <span class="mi">0</span><span class="p">)</span> <span class="ow">or</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">BNode</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">'</span><span class="se">\n</span><span class="s">'</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">indent</span><span class="p">()</span> <span class="o">+</span> <span class="s">'[]'</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">predicateList</span><span class="p">(</span><span class="n">subject</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">' .'</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">True</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.path"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.path">[docs]</a> <span class="k">def</span> <span class="nf">path</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">node</span><span class="p">,</span> <span class="n">position</span><span class="p">,</span> <span class="n">newline</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">p_squared</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">position</span><span class="p">,</span> <span class="n">newline</span><span class="p">)</span>
<span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">p_default</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">position</span><span class="p">,</span> <span class="n">newline</span><span class="p">)):</span>
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">"Cannot serialize node '</span><span class="si">%s</span><span class="s">'"</span> <span class="o">%</span> <span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="p">))</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.p_default"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.p_default">[docs]</a> <span class="k">def</span> <span class="nf">p_default</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">node</span><span class="p">,</span> <span class="n">position</span><span class="p">,</span> <span class="n">newline</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
<span class="k">if</span> <span class="n">position</span> <span class="o">!=</span> <span class="n">SUBJECT</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">newline</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">' '</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">label</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">position</span><span class="p">))</span>
<span class="k">return</span> <span class="bp">True</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.label"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.label">[docs]</a> <span class="k">def</span> <span class="nf">label</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">node</span><span class="p">,</span> <span class="n">position</span><span class="p">):</span>
<span class="k">if</span> <span class="n">node</span> <span class="o">==</span> <span class="n">RDF</span><span class="o">.</span><span class="n">nil</span><span class="p">:</span>
<span class="k">return</span> <span class="s">'()'</span>
<span class="k">if</span> <span class="n">position</span> <span class="ow">is</span> <span class="n">VERB</span> <span class="ow">and</span> <span class="n">node</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">keywords</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">keywords</span><span class="p">[</span><span class="n">node</span><span class="p">]</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">Literal</span><span class="p">):</span>
<span class="k">return</span> <span class="n">node</span><span class="o">.</span><span class="n">_literal_n3</span><span class="p">(</span>
<span class="n">use_plain</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
<span class="n">qname_callback</span><span class="o">=</span><span class="k">lambda</span> <span class="n">dt</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">getQName</span><span class="p">(</span>
<span class="n">dt</span><span class="p">,</span> <span class="n">_GEN_QNAME_FOR_DT</span><span class="p">))</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">relativize</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">getQName</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">position</span> <span class="o">==</span> <span class="n">VERB</span><span class="p">)</span> <span class="ow">or</span> <span class="n">node</span><span class="o">.</span><span class="n">n3</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.p_squared"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.p_squared">[docs]</a> <span class="k">def</span> <span class="nf">p_squared</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">node</span><span class="p">,</span> <span class="n">position</span><span class="p">,</span> <span class="n">newline</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
<span class="k">if</span> <span class="p">(</span><span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">BNode</span><span class="p">)</span>
<span class="ow">or</span> <span class="n">node</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_serialized</span>
<span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">_references</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">></span> <span class="mi">1</span>
<span class="ow">or</span> <span class="n">position</span> <span class="o">==</span> <span class="n">SUBJECT</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">False</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">newline</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">' '</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">isValidList</span><span class="p">(</span><span class="n">node</span><span class="p">):</span>
<span class="c"># this is a list</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">'('</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">depth</span> <span class="o">+=</span> <span class="mi">1</span> <span class="c"># 2</span>
<span class="bp">self</span><span class="o">.</span><span class="n">doList</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">depth</span> <span class="o">-=</span> <span class="mi">1</span> <span class="c"># 2</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">' )'</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">subjectDone</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">depth</span> <span class="o">+=</span> <span class="mi">2</span>
<span class="c"># self.write('[\n' + self.indent())</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">'['</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">depth</span> <span class="o">-=</span> <span class="mi">1</span>
<span class="c"># self.predicateList(node, newline=True)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">predicateList</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">newline</span><span class="o">=</span><span class="bp">False</span><span class="p">)</span>
<span class="c"># self.write('\n' + self.indent() + ']')</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">' ]'</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">depth</span> <span class="o">-=</span> <span class="mi">1</span>
<span class="k">return</span> <span class="bp">True</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.isValidList"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.isValidList">[docs]</a> <span class="k">def</span> <span class="nf">isValidList</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">l</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Checks if l is a valid RDF list, i.e. no nodes have other properties.</span>
<span class="sd"> """</span>
<span class="k">try</span><span class="p">:</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">value</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">RDF</span><span class="o">.</span><span class="n">first</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">False</span>
<span class="k">except</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">False</span>
<span class="k">while</span> <span class="n">l</span><span class="p">:</span>
<span class="k">if</span> <span class="n">l</span> <span class="o">!=</span> <span class="n">RDF</span><span class="o">.</span><span class="n">nil</span> <span class="ow">and</span> <span class="nb">len</span><span class="p">(</span>
<span class="nb">list</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">predicate_objects</span><span class="p">(</span><span class="n">l</span><span class="p">)))</span> <span class="o">!=</span> <span class="mi">2</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">False</span>
<span class="n">l</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">value</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">RDF</span><span class="o">.</span><span class="n">rest</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">True</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.doList"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.doList">[docs]</a> <span class="k">def</span> <span class="nf">doList</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">l</span><span class="p">):</span>
<span class="k">while</span> <span class="n">l</span><span class="p">:</span>
<span class="n">item</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">value</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">RDF</span><span class="o">.</span><span class="n">first</span><span class="p">)</span>
<span class="k">if</span> <span class="n">item</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">item</span><span class="p">,</span> <span class="n">OBJECT</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">subjectDone</span><span class="p">(</span><span class="n">l</span><span class="p">)</span>
<span class="n">l</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">value</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">RDF</span><span class="o">.</span><span class="n">rest</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.predicateList"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.predicateList">[docs]</a> <span class="k">def</span> <span class="nf">predicateList</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="p">,</span> <span class="n">newline</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
<span class="n">properties</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">buildPredicateHash</span><span class="p">(</span><span class="n">subject</span><span class="p">)</span>
<span class="n">propList</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sortProperties</span><span class="p">(</span><span class="n">properties</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">propList</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">return</span>
<span class="bp">self</span><span class="o">.</span><span class="n">verb</span><span class="p">(</span><span class="n">propList</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">newline</span><span class="o">=</span><span class="n">newline</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">objectList</span><span class="p">(</span><span class="n">properties</span><span class="p">[</span><span class="n">propList</span><span class="p">[</span><span class="mi">0</span><span class="p">]])</span>
<span class="k">for</span> <span class="n">predicate</span> <span class="ow">in</span> <span class="n">propList</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">' ;</span><span class="se">\n</span><span class="s">'</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">indent</span><span class="p">(</span><span class="mi">1</span><span class="p">))</span>
<span class="bp">self</span><span class="o">.</span><span class="n">verb</span><span class="p">(</span><span class="n">predicate</span><span class="p">,</span> <span class="n">newline</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">objectList</span><span class="p">(</span><span class="n">properties</span><span class="p">[</span><span class="n">predicate</span><span class="p">])</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.verb"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.verb">[docs]</a> <span class="k">def</span> <span class="nf">verb</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">node</span><span class="p">,</span> <span class="n">newline</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">VERB</span><span class="p">,</span> <span class="n">newline</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="TurtleSerializer.objectList"><a class="viewcode-back" href="../../../../apidocs/rdflib.plugins.serializers.html#rdflib.plugins.serializers.turtle.TurtleSerializer.objectList">[docs]</a> <span class="k">def</span> <span class="nf">objectList</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">objects</span><span class="p">):</span>
<span class="n">count</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">objects</span><span class="p">)</span>
<span class="k">if</span> <span class="n">count</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">return</span>
<span class="n">depthmod</span> <span class="o">=</span> <span class="p">(</span><span class="n">count</span> <span class="o">==</span> <span class="mi">1</span><span class="p">)</span> <span class="ow">and</span> <span class="mi">0</span> <span class="ow">or</span> <span class="mi">1</span>
<span class="bp">self</span><span class="o">.</span><span class="n">depth</span> <span class="o">+=</span> <span class="n">depthmod</span>
<span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">objects</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">OBJECT</span><span class="p">)</span>
<span class="k">for</span> <span class="n">obj</span> <span class="ow">in</span> <span class="n">objects</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">',</span><span class="se">\n</span><span class="s">'</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">indent</span><span class="p">(</span><span class="mi">1</span><span class="p">))</span>
<span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">obj</span><span class="p">,</span> <span class="n">OBJECT</span><span class="p">,</span> <span class="n">newline</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">depth</span> <span class="o">-=</span> <span class="n">depthmod</span></div></div>
</pre></div>
</div>
</div>
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