First step for itemprop-reverse: slight reorganization of the triple …

…generation part

pyMicrodata/microdata.py

@@ -361,22 +361,26 @@ def generate_triples(self, item, context) :
 		# todo: what follows has to be duplicated with the get_item_inverse_properties and the corresponding changes
 		# but... what if the target/object is a literal? That must be filtered out...
 
+		def get_predicate_object(prop, name) :
+			# 9.1.1. set a new context
+			new_context = context.new_copy(itype)
+			# 9.1.2, generate the URI for the property name, that will be the predicate
+			# Also update the context
+			# Note that the method also checks, and stores, the possible superproperty/equivalent property values
+			new_context.current_name = predicate = self.generate_predicate_URI(name, new_context)
+			# 9.1.3, generate the property value. The extra flag signals that the value is a new item
+			# Note that 9.1.4 step is done in the method itself, ie, a recursion may occur there
+			# if a new item is hit (in which case the return value is a RDF resource chaining to a subject)
+			# Note that the value may be None (e.g, for an <img> element without a @src), in which case nothing
+			# is generated
+			value  = self.get_property_value(prop, new_context)
+			return (predicate, value)
+
 		# Step 9: Get the item properties and run a cycle on those
 		# each entry in the dictionary is an array of RDF objects
 		for prop in self.get_item_properties(item) :
 			for name in prop.getAttribute("itemprop").strip().split() :
-				# 9.1.1. set a new context
-				new_context = context.new_copy(itype)
-				# 9.1.2, generate the URI for the property name, that will be the predicate
-				# Also update the context
-				# Note that the method also checks, and stores, the possible superproperty/equivalent property values
-				new_context.current_name = predicate = self.generate_predicate_URI(name, new_context)
-				# 9.1.3, generate the property value. The extra flag signals that the value is a new item
-				# Note that 9.1.4 step is done in the method itself, ie, a recursion may occur there
-				# if a new item is hit (in which case the return value is a RDF resource chaining to a subject)
-				# Note that the value may be None (e.g, for an <img> element without a @src), in which case nothing
-				# is generated
-				value  = self.get_property_value(prop, new_context)
+				(predicate, value) = get_predicate_object(prop, name)
 				if value is None : continue
 				# 9.1.5, generate the triple
 				self.graph.add((subject, URIRef(predicate), value))