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  <h1>Source code for rdflib.plugins.parsers.pyRdfa.property</h1><div class="highlight"><pre>
<span class="c"># -*- coding: utf-8 -*-</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd">Implementation of the C{@property} value handling.</span>

<span class="sd">RDFa 1.0 and RDFa 1.1 are fairly different. RDFa 1.0 generates only literals, see</span>
<span class="sd">U{RDFa Task Force&#39;s wiki page&lt;http://www.w3.org/2006/07/SWD/wiki/RDFa/LiteralObject&gt;} for the details.</span>
<span class="sd">On the other hand, RDFa 1.1, beyond literals, can also generate URI references. Hence the duplicate method in the L{ProcessProperty} class, one for RDFa 1.0 and the other for RDFa 1.1.</span>

<span class="sd">@summary: RDFa Literal generation</span>
<span class="sd">@requires: U{RDFLib package&lt;http://rdflib.net&gt;}</span>
<span class="sd">@organization: U{World Wide Web Consortium&lt;http://www.w3.org&gt;}</span>
<span class="sd">@author: U{Ivan Herman&lt;a href=&quot;http://www.w3.org/People/Ivan/&quot;&gt;}</span>
<span class="sd">@license: This software is available for use under the</span>
<span class="sd">U{W3C® SOFTWARE NOTICE AND LICENSE&lt;href=&quot;http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231&quot;&gt;}</span>
<span class="sd">&quot;&quot;&quot;</span>

<span class="sd">&quot;&quot;&quot;</span>
<span class="sd">$Id: property.py,v 1.11 2012/06/12 11:47:11 ivan Exp $</span>
<span class="sd">$Date: 2012/06/12 11:47:11 $</span>
<span class="sd">&quot;&quot;&quot;</span>

<span class="kn">import</span> <span class="nn">re</span><span class="o">,</span> <span class="nn">sys</span>

<span class="kn">import</span> <span class="nn">rdflib</span>
<span class="kn">from</span> <span class="nn">rdflib</span>	<span class="kn">import</span> <span class="n">BNode</span>
<span class="kn">from</span> <span class="nn">rdflib</span>	<span class="kn">import</span> <span class="n">Literal</span><span class="p">,</span> <span class="n">URIRef</span><span class="p">,</span> <span class="n">Namespace</span>
<span class="k">if</span> <span class="n">rdflib</span><span class="o">.</span><span class="n">__version__</span> <span class="o">&gt;=</span> <span class="s">&quot;3.0.0&quot;</span> <span class="p">:</span>
	<span class="kn">from</span> <span class="nn">rdflib</span>	     <span class="kn">import</span> <span class="n">RDF</span> <span class="k">as</span> <span class="n">ns_rdf</span>
	<span class="kn">from</span> <span class="nn">rdflib.term</span> <span class="kn">import</span> <span class="n">XSDToPython</span>
<span class="k">else</span> <span class="p">:</span>
	<span class="kn">from</span> <span class="nn">rdflib.RDF</span>	    <span class="kn">import</span> <span class="n">RDFNS</span> <span class="k">as</span> <span class="n">ns_rdf</span>
	<span class="kn">from</span> <span class="nn">rdflib.Literal</span> <span class="kn">import</span> <span class="n">XSDToPython</span>

<span class="kn">from</span> <span class="nn">.</span>	         <span class="kn">import</span> <span class="n">IncorrectBlankNodeUsage</span><span class="p">,</span> <span class="n">IncorrectLiteral</span><span class="p">,</span> <span class="n">err_no_blank_node</span><span class="p">,</span> <span class="n">ns_xsd</span> 
<span class="kn">from</span> <span class="nn">.utils</span>      <span class="kn">import</span> <span class="n">has_one_of_attributes</span><span class="p">,</span> <span class="n">return_XML</span>
<span class="kn">from</span> <span class="nn">.host.html5</span> <span class="kn">import</span> <span class="n">handled_time_types</span>

<span class="n">XMLLiteral</span>  <span class="o">=</span> <span class="n">ns_rdf</span><span class="p">[</span><span class="s">&quot;XMLLiteral&quot;</span><span class="p">]</span>
<span class="n">HTMLLiteral</span> <span class="o">=</span> <span class="n">URIRef</span><span class="p">(</span><span class="s">&quot;http://www.w3.org/1999/02/22-rdf-syntax-ns#HTML&quot;</span><span class="p">)</span> 

<div class="viewcode-block" id="ProcessProperty"><a class="viewcode-back" href="../../../../../apidocs/rdflib.plugins.parsers.pyRdfa.html#rdflib.plugins.parsers.pyRdfa.property.ProcessProperty">[docs]</a><span class="k">class</span> <span class="nc">ProcessProperty</span> <span class="p">:</span>
	<span class="sd">&quot;&quot;&quot;Generate the value for C{@property} taking into account datatype, etc.</span>
<span class="sd">	Note: this class is created only if the C{@property} is indeed present, no need to check. </span>
<span class="sd">	</span>
<span class="sd">	@ivar node: DOM element node</span>
<span class="sd">	@ivar graph: the (RDF) graph to add the properies to</span>
<span class="sd">	@ivar subject: the RDFLib URIRef serving as a subject for the generated triples</span>
<span class="sd">	@ivar state: the current state to be used for the CURIE-s</span>
<span class="sd">	@type state: L{state.ExecutionContext}</span>
<span class="sd">	@ivar typed_resource: Typically the bnode generated by a @typeof</span>
<span class="sd">	&quot;&quot;&quot;</span>
<div class="viewcode-block" id="ProcessProperty.__init__"><a class="viewcode-back" href="../../../../../apidocs/rdflib.plugins.parsers.pyRdfa.html#rdflib.plugins.parsers.pyRdfa.property.ProcessProperty.__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">node</span><span class="p">,</span> <span class="n">graph</span><span class="p">,</span> <span class="n">subject</span><span class="p">,</span> <span class="n">state</span><span class="p">,</span> <span class="n">typed_resource</span> <span class="o">=</span> <span class="bp">None</span><span class="p">)</span> <span class="p">:</span>
		<span class="sd">&quot;&quot;&quot;</span>
<span class="sd">		@param node: DOM element node</span>
<span class="sd">		@param graph: the (RDF) graph to add the properies to</span>
<span class="sd">		@param subject: the RDFLib URIRef serving as a subject for the generated triples</span>
<span class="sd">		@param state: the current state to be used for the CURIE-s</span>
<span class="sd">		@param state: L{state.ExecutionContext}</span>
<span class="sd">		@param typed_resource: Typically the bnode generated by a @typeof; in RDFa 1.1, that becomes the object for C{@property}</span>
<span class="sd">		&quot;&quot;&quot;</span>
		<span class="bp">self</span><span class="o">.</span><span class="n">node</span>           <span class="o">=</span> <span class="n">node</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">subject</span>        <span class="o">=</span> <span class="n">subject</span>
		<span class="bp">self</span><span class="o">.</span><span class="n">state</span>          <span class="o">=</span> <span class="n">state</span>
		<span class="bp">self</span><span class="o">.</span><span class="n">typed_resource</span> <span class="o">=</span> <span class="n">typed_resource</span>
		</div>
<div class="viewcode-block" id="ProcessProperty.generate"><a class="viewcode-back" href="../../../../../apidocs/rdflib.plugins.parsers.pyRdfa.html#rdflib.plugins.parsers.pyRdfa.property.ProcessProperty.generate">[docs]</a>	<span class="k">def</span> <span class="nf">generate</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="p">:</span>
		<span class="sd">&quot;&quot;&quot;</span>
<span class="sd">		Common entry point for the RDFa 1.0 and RDFa 1.1 versions; bifurcates based on the RDFa version, as retrieved from the state object.</span>
<span class="sd">		&quot;&quot;&quot;</span>
		<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">rdfa_version</span> <span class="o">&gt;=</span> <span class="s">&quot;1.1&quot;</span> <span class="p">:</span>
			<span class="bp">self</span><span class="o">.</span><span class="n">generate_1_1</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">generate_1_0</span><span class="p">()</span>
	</div>
<div class="viewcode-block" id="ProcessProperty.generate_1_1"><a class="viewcode-back" href="../../../../../apidocs/rdflib.plugins.parsers.pyRdfa.html#rdflib.plugins.parsers.pyRdfa.property.ProcessProperty.generate_1_1">[docs]</a>	<span class="k">def</span> <span class="nf">generate_1_1</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="p">:</span>
		<span class="sd">&quot;&quot;&quot;Generate the property object, 1.1 version&quot;&quot;&quot;</span>
				
		<span class="c">#########################################################################		</span>
		<span class="c"># See if the target is _not_ a literal</span>
		<span class="n">irirefs</span>      <span class="o">=</span> <span class="p">(</span><span class="s">&quot;resource&quot;</span><span class="p">,</span> <span class="s">&quot;href&quot;</span><span class="p">,</span> <span class="s">&quot;src&quot;</span><span class="p">)</span>
		<span class="n">noiri</span>        <span class="o">=</span> <span class="p">(</span><span class="s">&quot;content&quot;</span><span class="p">,</span> <span class="s">&quot;datatype&quot;</span><span class="p">,</span> <span class="s">&quot;rel&quot;</span><span class="p">,</span> <span class="s">&quot;rev&quot;</span><span class="p">)</span>
		<span class="n">notypediri</span>   <span class="o">=</span> <span class="p">(</span><span class="s">&quot;content&quot;</span><span class="p">,</span> <span class="s">&quot;datatype&quot;</span><span class="p">,</span> <span class="s">&quot;rel&quot;</span><span class="p">,</span> <span class="s">&quot;rev&quot;</span><span class="p">,</span> <span class="s">&quot;about&quot;</span><span class="p">,</span> <span class="s">&quot;about_pruned&quot;</span><span class="p">)</span>
		<span class="k">if</span> <span class="n">has_one_of_attributes</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="p">,</span> <span class="n">irirefs</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">has_one_of_attributes</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="p">,</span> <span class="n">noiri</span><span class="p">)</span> <span class="p">:</span>
			<span class="c"># @href/@resource/@src takes the lead here...</span>
			<span class="nb">object</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">getResource</span><span class="p">(</span><span class="n">irirefs</span><span class="p">)</span>
		<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">hasAttribute</span><span class="p">(</span><span class="s">&quot;typeof&quot;</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">has_one_of_attributes</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="p">,</span> <span class="n">notypediri</span><span class="p">)</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">typed_resource</span> <span class="o">!=</span> <span class="bp">None</span> <span class="p">:</span>
				<span class="c"># a @typeof creates a special branch in case the typed resource was set during parsing</span>
				<span class="nb">object</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">typed_resource</span>
		<span class="k">else</span> <span class="p">:</span>
			<span class="c"># We have to generate a literal</span>
			
			<span class="c"># Get, if exists, the value of @datatype</span>
			<span class="n">datatype</span> <span class="o">=</span> <span class="s">&#39;&#39;</span>
			<span class="n">dtset</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">node</span><span class="o">.</span><span class="n">hasAttribute</span><span class="p">(</span><span class="s">&quot;datatype&quot;</span><span class="p">)</span> <span class="p">:</span>
				<span class="n">dtset</span> <span class="o">=</span> <span class="bp">True</span>
				<span class="n">dt</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">getAttribute</span><span class="p">(</span><span class="s">&quot;datatype&quot;</span><span class="p">)</span>
				<span class="k">if</span> <span class="n">dt</span> <span class="o">!=</span> <span class="s">&quot;&quot;</span> <span class="p">:</span>
					<span class="n">datatype</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">getURI</span><span class="p">(</span><span class="s">&quot;datatype&quot;</span><span class="p">)</span>
		
			<span class="c"># Supress lange is set in case some elements explicitly want to supress the effect of language</span>
			<span class="c"># There were discussions, for example, that the &lt;time&gt; element should do so. Although,</span>
			<span class="c"># after all, this was reversed, the functionality is kept in the code in case another</span>
			<span class="c"># element might need it...</span>
			<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">lang</span> <span class="o">!=</span> <span class="bp">None</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">supress_lang</span> <span class="o">==</span> <span class="bp">False</span> <span class="p">:</span>
				<span class="n">lang</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">lang</span>
			<span class="k">else</span> <span class="p">:</span>
				<span class="n">lang</span> <span class="o">=</span> <span class="s">&#39;&#39;</span>
	
			<span class="c"># The simple case: separate @content attribute</span>
			<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">hasAttribute</span><span class="p">(</span><span class="s">&quot;content&quot;</span><span class="p">)</span> <span class="p">:</span>
				<span class="n">val</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">getAttribute</span><span class="p">(</span><span class="s">&quot;content&quot;</span><span class="p">)</span>
				<span class="c"># Handling the automatic uri conversion case</span>
				<span class="k">if</span> <span class="n">dtset</span> <span class="o">==</span> <span class="bp">False</span> <span class="p">:</span>
					<span class="nb">object</span> <span class="o">=</span> <span class="n">Literal</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="n">lang</span><span class="o">=</span><span class="n">lang</span><span class="p">)</span>
				<span class="k">else</span> <span class="p">:</span>
					<span class="nb">object</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_create_Literal</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="n">datatype</span><span class="o">=</span><span class="n">datatype</span><span class="p">,</span> <span class="n">lang</span><span class="o">=</span><span class="n">lang</span><span class="p">)</span>
				<span class="c"># The value of datatype has been set, and the keyword paramaters take care of the rest</span>
			<span class="k">else</span> <span class="p">:</span>
				<span class="c"># see if there *is* a datatype (even if it is empty!)</span>
				<span class="k">if</span> <span class="n">dtset</span> <span class="p">:</span>
					<span class="k">if</span> <span class="n">datatype</span> <span class="o">==</span> <span class="n">XMLLiteral</span> <span class="p">:</span>
						<span class="n">litval</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_XML_literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="p">)</span>
						<span class="nb">object</span> <span class="o">=</span> <span class="n">Literal</span><span class="p">(</span><span class="n">litval</span><span class="p">,</span><span class="n">datatype</span><span class="o">=</span><span class="n">XMLLiteral</span><span class="p">)</span>
					<span class="k">elif</span> <span class="n">datatype</span> <span class="o">==</span> <span class="n">HTMLLiteral</span> <span class="p">:</span>
						<span class="c"># I am not sure why this hack is necessary, but otherwise an encoding error occurs</span>
						<span class="c"># In Python3 all this should become moot, due to the unicode everywhere approach...</span>
						<span class="k">if</span> <span class="n">sys</span><span class="o">.</span><span class="n">version_info</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">&gt;=</span> <span class="mi">3</span> <span class="p">:</span>
							<span class="nb">object</span> <span class="o">=</span> <span class="n">Literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_get_HTML_literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="p">),</span> <span class="n">datatype</span><span class="o">=</span><span class="n">HTMLLiteral</span><span class="p">)</span>
						<span class="k">else</span> <span class="p">:</span>
							<span class="n">litval</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_HTML_literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="p">)</span>
							<span class="n">o</span> <span class="o">=</span> <span class="n">Literal</span><span class="p">(</span><span class="n">litval</span><span class="p">,</span> <span class="n">datatype</span><span class="o">=</span><span class="n">XMLLiteral</span><span class="p">)</span>	
							<span class="nb">object</span> <span class="o">=</span> <span class="n">Literal</span><span class="p">(</span><span class="n">o</span><span class="p">,</span> <span class="n">datatype</span><span class="o">=</span><span class="n">HTMLLiteral</span><span class="p">)</span>					
					<span class="k">else</span> <span class="p">:</span>
						<span class="nb">object</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_create_Literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_get_literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="p">),</span> <span class="n">datatype</span><span class="o">=</span><span class="n">datatype</span><span class="p">,</span> <span class="n">lang</span><span class="o">=</span><span class="n">lang</span><span class="p">)</span>
				<span class="k">else</span> <span class="p">:</span>
					<span class="nb">object</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_create_Literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_get_literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="p">),</span> <span class="n">lang</span><span class="o">=</span><span class="n">lang</span><span class="p">)</span>
	
		<span class="k">if</span> <span class="nb">object</span> <span class="o">!=</span> <span class="bp">None</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">state</span><span class="o">.</span><span class="n">getURI</span><span class="p">(</span><span class="s">&quot;property&quot;</span><span class="p">)</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">prop</span><span class="p">,</span> <span class="n">BNode</span><span class="p">)</span> <span class="p">:</span>
					<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">hasAttribute</span><span class="p">(</span><span class="s">&quot;inlist&quot;</span><span class="p">)</span> <span class="p">:</span>
						<span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">add_to_list_mapping</span><span class="p">(</span><span class="n">prop</span><span class="p">,</span> <span class="nb">object</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">graph</span><span class="o">.</span><span class="n">add</span><span class="p">(</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">subject</span><span class="p">,</span> <span class="n">prop</span><span class="p">,</span> <span class="nb">object</span><span class="p">)</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">state</span><span class="o">.</span><span class="n">options</span><span class="o">.</span><span class="n">add_warning</span><span class="p">(</span><span class="n">err_no_blank_node</span> <span class="o">%</span> <span class="s">&quot;property&quot;</span><span class="p">,</span> <span class="n">warning_type</span><span class="o">=</span><span class="n">IncorrectBlankNodeUsage</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">node</span><span class="o">.</span><span class="n">nodeName</span><span class="p">)</span>
	
		<span class="c"># return</span>
</div>
<div class="viewcode-block" id="ProcessProperty.generate_1_0"><a class="viewcode-back" href="../../../../../apidocs/rdflib.plugins.parsers.pyRdfa.html#rdflib.plugins.parsers.pyRdfa.property.ProcessProperty.generate_1_0">[docs]</a>	<span class="k">def</span> <span class="nf">generate_1_0</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="p">:</span>
		<span class="sd">&quot;&quot;&quot;Generate the property object, 1.0 version&quot;&quot;&quot;</span>
				
		<span class="c">#########################################################################		</span>
		<span class="c"># We have to generate a literal indeed.</span>
		<span class="c"># Get, if exists, the value of @datatype</span>
		<span class="n">datatype</span> <span class="o">=</span> <span class="s">&#39;&#39;</span>
		<span class="n">dtset</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">node</span><span class="o">.</span><span class="n">hasAttribute</span><span class="p">(</span><span class="s">&quot;datatype&quot;</span><span class="p">)</span> <span class="p">:</span>
			<span class="n">dtset</span> <span class="o">=</span> <span class="bp">True</span>
			<span class="n">dt</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">getAttribute</span><span class="p">(</span><span class="s">&quot;datatype&quot;</span><span class="p">)</span>
			<span class="k">if</span> <span class="n">dt</span> <span class="o">!=</span> <span class="s">&quot;&quot;</span> <span class="p">:</span>
				<span class="n">datatype</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">getURI</span><span class="p">(</span><span class="s">&quot;datatype&quot;</span><span class="p">)</span>
	
		<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">lang</span> <span class="o">!=</span> <span class="bp">None</span> <span class="p">:</span>
			<span class="n">lang</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">lang</span>
		<span class="k">else</span> <span class="p">:</span>
			<span class="n">lang</span> <span class="o">=</span> <span class="s">&#39;&#39;</span>

		<span class="c"># The simple case: separate @content attribute</span>
		<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">hasAttribute</span><span class="p">(</span><span class="s">&quot;content&quot;</span><span class="p">)</span> <span class="p">:</span>
			<span class="n">val</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">getAttribute</span><span class="p">(</span><span class="s">&quot;content&quot;</span><span class="p">)</span>
			<span class="c"># Handling the automatic uri conversion case</span>
			<span class="k">if</span> <span class="n">dtset</span> <span class="o">==</span> <span class="bp">False</span> <span class="p">:</span>
				<span class="nb">object</span> <span class="o">=</span> <span class="n">Literal</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="n">lang</span><span class="o">=</span><span class="n">lang</span><span class="p">)</span>
			<span class="k">else</span> <span class="p">:</span>
				<span class="nb">object</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_create_Literal</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="n">datatype</span><span class="o">=</span><span class="n">datatype</span><span class="p">,</span> <span class="n">lang</span><span class="o">=</span><span class="n">lang</span><span class="p">)</span>
			<span class="c"># The value of datatype has been set, and the keyword paramaters take care of the rest</span>
		<span class="k">else</span> <span class="p">:</span>
			<span class="c"># see if there *is* a datatype (even if it is empty!)</span>
			<span class="k">if</span> <span class="n">dtset</span> <span class="p">:</span>
				<span class="c"># yep. The Literal content is the pure text part of the current element:</span>
				<span class="c"># We have to check whether the specified datatype is, in fact, an</span>
				<span class="c"># explicit XML Literal</span>
				<span class="k">if</span> <span class="n">datatype</span> <span class="o">==</span> <span class="n">XMLLiteral</span> <span class="p">:</span>
					<span class="n">litval</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_XML_literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="p">)</span>
					<span class="nb">object</span> <span class="o">=</span> <span class="n">Literal</span><span class="p">(</span><span class="n">litval</span><span class="p">,</span><span class="n">datatype</span><span class="o">=</span><span class="n">XMLLiteral</span><span class="p">)</span>
				<span class="k">elif</span> <span class="n">datatype</span> <span class="o">==</span> <span class="n">HTMLLiteral</span> <span class="p">:</span>
					<span class="c"># I am not sure why this hack is necessary, but otherwise an encoding error occurs</span>
					<span class="c"># In Python3 all this should become moot, due to the unicode everywhere approach...</span>
					<span class="k">if</span> <span class="n">sys</span><span class="o">.</span><span class="n">version_info</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">&gt;=</span> <span class="mi">3</span> <span class="p">:</span>
						<span class="nb">object</span> <span class="o">=</span> <span class="n">Literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_get_HTML_literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="p">),</span> <span class="n">datatype</span><span class="o">=</span><span class="n">HTMLLiteral</span><span class="p">)</span>
					<span class="k">else</span> <span class="p">:</span>
						<span class="n">litval</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_HTML_literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="p">)</span>
						<span class="n">o</span> <span class="o">=</span> <span class="n">Literal</span><span class="p">(</span><span class="n">litval</span><span class="p">,</span> <span class="n">datatype</span><span class="o">=</span><span class="n">XMLLiteral</span><span class="p">)</span>	
						<span class="nb">object</span> <span class="o">=</span> <span class="n">Literal</span><span class="p">(</span><span class="n">o</span><span class="p">,</span> <span class="n">datatype</span><span class="o">=</span><span class="n">HTMLLiteral</span><span class="p">)</span>					
				<span class="k">else</span> <span class="p">:</span>
					<span class="nb">object</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_create_Literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_get_literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="p">),</span> <span class="n">datatype</span><span class="o">=</span><span class="n">datatype</span><span class="p">,</span> <span class="n">lang</span><span class="o">=</span><span class="n">lang</span><span class="p">)</span>
			<span class="k">else</span> <span class="p">:</span>
				<span class="c"># no controlling @datatype. We have to see if there is markup in the contained</span>
				<span class="c"># element</span>
				<span class="k">if</span> <span class="bp">True</span> <span class="ow">in</span> <span class="p">[</span> <span class="n">n</span><span class="o">.</span><span class="n">nodeType</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">ELEMENT_NODE</span> <span class="k">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">childNodes</span> <span class="p">]</span> <span class="p">:</span>
					<span class="c"># yep, and XML Literal should be generated</span>
					<span class="nb">object</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_create_Literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_get_XML_literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="p">),</span> <span class="n">datatype</span><span class="o">=</span><span class="n">XMLLiteral</span><span class="p">)</span>
				<span class="k">else</span> <span class="p">:</span>
					<span class="c"># At this point, there might be entities in the string that are returned as real characters by the dom</span>
					<span class="c"># implementation. That should be turned back</span>
					<span class="nb">object</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_create_Literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_get_literal</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="p">),</span> <span class="n">lang</span><span class="o">=</span><span class="n">lang</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">state</span><span class="o">.</span><span class="n">getURI</span><span class="p">(</span><span class="s">&quot;property&quot;</span><span class="p">)</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">prop</span><span class="p">,</span><span class="n">BNode</span><span class="p">)</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">add</span><span class="p">(</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">subject</span><span class="p">,</span><span class="n">prop</span><span class="p">,</span><span class="nb">object</span><span class="p">)</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">state</span><span class="o">.</span><span class="n">options</span><span class="o">.</span><span class="n">add_warning</span><span class="p">(</span><span class="n">err_no_blank_node</span> <span class="o">%</span> <span class="s">&quot;property&quot;</span><span class="p">,</span> <span class="n">warning_type</span><span class="o">=</span><span class="n">IncorrectBlankNodeUsage</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">node</span><span class="o">.</span><span class="n">nodeName</span><span class="p">)</span>
	
		<span class="c"># return</span>
	
	<span class="c">######################################################################################################################################</span>
	
	</div>
	<span class="k">def</span> <span class="nf">_putBackEntities</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="nb">str</span><span class="p">)</span> <span class="p">:</span>
		<span class="sd">&quot;&quot;&quot;Put &#39;back&#39; entities for the &#39;&amp;&#39;,&#39;&lt;&#39;, and &#39;&gt;&#39; characters, to produce a proper XML string.</span>
<span class="sd">		Used by the XML Literal extraction.</span>
<span class="sd">		@param str: string to be converted</span>
<span class="sd">		@return: string with entities</span>
<span class="sd">		@rtype: string</span>
<span class="sd">		&quot;&quot;&quot;</span>
		<span class="k">return</span> <span class="nb">str</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s">&#39;&amp;&#39;</span><span class="p">,</span><span class="s">&#39;&amp;amp;&#39;</span><span class="p">)</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s">&#39;&lt;&#39;</span><span class="p">,</span><span class="s">&#39;&amp;lt;&#39;</span><span class="p">)</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s">&#39;&gt;&#39;</span><span class="p">,</span><span class="s">&#39;&amp;gt;&#39;</span><span class="p">)</span>
		
	<span class="k">def</span> <span class="nf">_get_literal</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">Pnode</span><span class="p">):</span>
		<span class="sd">&quot;&quot;&quot;</span>
<span class="sd">		Get (recursively) the full text from a DOM Node.</span>
<span class="sd">	</span>
<span class="sd">		@param Pnode: DOM Node</span>
<span class="sd">		@return: string</span>
<span class="sd">		&quot;&quot;&quot;</span>
		<span class="n">rc</span> <span class="o">=</span> <span class="s">&quot;&quot;</span>
		<span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">Pnode</span><span class="o">.</span><span class="n">childNodes</span><span class="p">:</span>
			<span class="k">if</span> <span class="n">node</span><span class="o">.</span><span class="n">nodeType</span> <span class="o">==</span> <span class="n">node</span><span class="o">.</span><span class="n">TEXT_NODE</span><span class="p">:</span>
				<span class="n">rc</span> <span class="o">=</span> <span class="n">rc</span> <span class="o">+</span> <span class="n">node</span><span class="o">.</span><span class="n">data</span>
			<span class="k">elif</span> <span class="n">node</span><span class="o">.</span><span class="n">nodeType</span> <span class="o">==</span> <span class="n">node</span><span class="o">.</span><span class="n">ELEMENT_NODE</span> <span class="p">:</span>
				<span class="n">rc</span> <span class="o">=</span> <span class="n">rc</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_literal</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
	
		<span class="c"># The decision of the group in February 2008 is not to normalize the result by default.</span>
		<span class="c"># This is reflected in the default value of the option		</span>
		
		<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">options</span><span class="o">.</span><span class="n">space_preserve</span> <span class="p">:</span>
			<span class="k">return</span> <span class="n">rc</span>
		<span class="k">else</span> <span class="p">:</span>
			<span class="k">return</span> <span class="n">re</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="s">r&#39;(\r| |\n|\t)+&#39;</span><span class="p">,</span><span class="s">&quot; &quot;</span><span class="p">,</span><span class="n">rc</span><span class="p">)</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span>
	<span class="c"># end getLiteral</span>
	
	<span class="k">def</span> <span class="nf">_get_XML_literal</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">Pnode</span><span class="p">)</span> <span class="p">:</span>
		<span class="sd">&quot;&quot;&quot;</span>
<span class="sd">		Get (recursively) the XML Literal content of a DOM Node. </span>
<span class="sd">	</span>
<span class="sd">		@param Pnode: DOM Node</span>
<span class="sd">		@return: string</span>
<span class="sd">		&quot;&quot;&quot;</span>	
		<span class="n">rc</span> <span class="o">=</span> <span class="s">&quot;&quot;</span>		
		<span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">Pnode</span><span class="o">.</span><span class="n">childNodes</span><span class="p">:</span>
			<span class="k">if</span> <span class="n">node</span><span class="o">.</span><span class="n">nodeType</span> <span class="o">==</span> <span class="n">node</span><span class="o">.</span><span class="n">TEXT_NODE</span><span class="p">:</span>
				<span class="n">rc</span> <span class="o">=</span> <span class="n">rc</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">_putBackEntities</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">data</span><span class="p">)</span>
			<span class="k">elif</span> <span class="n">node</span><span class="o">.</span><span class="n">nodeType</span> <span class="o">==</span> <span class="n">node</span><span class="o">.</span><span class="n">ELEMENT_NODE</span> <span class="p">:</span>
				<span class="n">rc</span> <span class="o">=</span> <span class="n">rc</span> <span class="o">+</span> <span class="n">return_XML</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="p">,</span> <span class="n">node</span><span class="p">,</span> <span class="n">base</span> <span class="o">=</span> <span class="bp">False</span><span class="p">)</span>
		<span class="k">return</span> <span class="n">rc</span>
	<span class="c"># end getXMLLiteral</span>

	<span class="k">def</span> <span class="nf">_get_HTML_literal</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">Pnode</span><span class="p">)</span> <span class="p">:</span>
		<span class="sd">&quot;&quot;&quot;</span>
<span class="sd">		Get (recursively) the XML Literal content of a DOM Node. </span>
<span class="sd">	</span>
<span class="sd">		@param Pnode: DOM Node</span>
<span class="sd">		@return: string</span>
<span class="sd">		&quot;&quot;&quot;</span>	
		<span class="n">rc</span> <span class="o">=</span> <span class="s">&quot;&quot;</span>		
		<span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">Pnode</span><span class="o">.</span><span class="n">childNodes</span><span class="p">:</span>
			<span class="k">if</span> <span class="n">node</span><span class="o">.</span><span class="n">nodeType</span> <span class="o">==</span> <span class="n">node</span><span class="o">.</span><span class="n">TEXT_NODE</span><span class="p">:</span>
				<span class="n">rc</span> <span class="o">=</span> <span class="n">rc</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">_putBackEntities</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">data</span><span class="p">)</span>
			<span class="k">elif</span> <span class="n">node</span><span class="o">.</span><span class="n">nodeType</span> <span class="o">==</span> <span class="n">node</span><span class="o">.</span><span class="n">ELEMENT_NODE</span> <span class="p">:</span>
				<span class="n">rc</span> <span class="o">=</span> <span class="n">rc</span> <span class="o">+</span> <span class="n">return_XML</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="p">,</span> <span class="n">node</span><span class="p">,</span> <span class="n">base</span> <span class="o">=</span> <span class="bp">False</span><span class="p">,</span> <span class="n">xmlns</span> <span class="o">=</span> <span class="bp">False</span> <span class="p">)</span>
		<span class="k">return</span> <span class="n">rc</span>
	<span class="c"># end getXMLLiteral</span>
	
	<span class="k">def</span> <span class="nf">_create_Literal</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">val</span><span class="p">,</span> <span class="n">datatype</span> <span class="o">=</span> <span class="s">&#39;&#39;</span><span class="p">,</span> <span class="n">lang</span> <span class="o">=</span> <span class="s">&#39;&#39;</span><span class="p">)</span> <span class="p">:</span>
		<span class="sd">&quot;&quot;&quot;</span>
<span class="sd">		Create a literal, taking into account the datatype and language.</span>
<span class="sd">		@return: Literal</span>
<span class="sd">		&quot;&quot;&quot;</span>
		<span class="k">if</span> <span class="n">datatype</span> <span class="o">==</span> <span class="bp">None</span> <span class="ow">or</span> <span class="n">datatype</span> <span class="o">==</span> <span class="s">&#39;&#39;</span> <span class="p">:</span>
			<span class="k">return</span> <span class="n">Literal</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="n">lang</span><span class="o">=</span><span class="n">lang</span><span class="p">)</span>
		<span class="c">#elif datatype == ns_xsd[&quot;string&quot;] :</span>
		<span class="c">#	return Literal(val)</span>
		<span class="k">else</span> <span class="p">:</span>
			<span class="c"># This is a bit convoluted... the default setup of rdflib does not gracefully react if the</span>
			<span class="c"># datatype cannot properly be converted to Python. I have to copy and reuse some of the</span>
			<span class="c"># rdflib code to get this working...</span>
			<span class="c"># To make things worse: rdlib 3.1.0 does not handle the various xsd date types properly, ie,</span>
			<span class="c"># the conversion function below will generate errors. Ie, the check should be skipped for those</span>
			<span class="k">if</span> <span class="p">(</span><span class="s">&quot;</span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="n">datatype</span><span class="p">)</span> <span class="ow">in</span> <span class="n">handled_time_types</span> <span class="ow">and</span> <span class="n">rdflib</span><span class="o">.</span><span class="n">__version__</span> <span class="o">&lt;</span> <span class="s">&quot;3.2.0&quot;</span> <span class="p">:</span>
				<span class="n">convFunc</span> <span class="o">=</span> <span class="bp">False</span>
			<span class="k">else</span> <span class="p">:</span>
				<span class="n">convFunc</span> <span class="o">=</span> <span class="n">XSDToPython</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">datatype</span><span class="p">,</span> <span class="bp">None</span><span class="p">)</span>
			<span class="k">if</span> <span class="n">convFunc</span> <span class="p">:</span>
				<span class="k">try</span> <span class="p">:</span>
					<span class="n">pv</span> <span class="o">=</span> <span class="n">convFunc</span><span class="p">(</span><span class="n">val</span><span class="p">)</span>
					<span class="c"># If we got there the literal value and its datatype match</span>
				<span class="k">except</span> <span class="p">:</span>
					<span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">options</span><span class="o">.</span><span class="n">add_warning</span><span class="p">(</span><span class="s">&quot;Incompatible value (</span><span class="si">%s</span><span class="s">) and datatype (</span><span class="si">%s</span><span class="s">) in Literal definition.&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="n">datatype</span><span class="p">),</span> <span class="n">warning_type</span><span class="o">=</span><span class="n">IncorrectLiteral</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">node</span><span class="o">.</span><span class="n">nodeName</span><span class="p">)</span>
			<span class="k">return</span> <span class="n">Literal</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="n">datatype</span><span class="o">=</span><span class="n">datatype</span><span class="p">)</span></div>
</pre></div>

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