Updated Slavic present tense.

Author: dan-zeman

udapi/block/msf/slavic/present.py

@@ -7,11 +7,11 @@
 import udapi.block.msf.phrase
 
 class Present(udapi.block.msf.phrase.Phrase):
-		
+
 	def process_node(self,node):
 		# the condition VerbForm == 'Fin' ensures that there are no transgressives between the found verbs
-		
-		if node.feats['Tense'] == 'Pres' and node.upos == 'VERB' and node.feats['VerbForm'] == 'Fin': #and node.feats['Aspect']=='Imp':
+		# the aspect is not always given in Czech treebanks, so we can't rely on the fact that the imperfect aspect is specified 
+		if node.feats['Tense'] == 'Pres' and node.upos == 'VERB' and node.feats['VerbForm'] == 'Fin': #and node.feats['Aspect']=='Imp': 
 			refl = [x for x in node.children if x.feats['Reflex'] == 'Yes' and x.udeprel == 'expl']
 			neg = [x for x in node.children if x.feats['Polarity'] == 'Neg' and x.upos == 'PART']
 			aux_forb = [x for x in node.children if x.upos == 'AUX' and (x.lemma == 'ќе' or x.lemma == 'ще' or x.feats['Mood'] == 'Cnd')] # forbidden auxiliaries for present tense (these auxiliaries are used for the future tense or the conditional mood)
@@ -33,7 +33,6 @@ def process_node(self,node):
 					ords=phrase_ords
 					)
 				return
-				
 
 		# passive voice
 		if node.upos == 'ADJ' and node.feats['Voice'] == 'Pass':
@@ -61,9 +60,33 @@ def process_node(self,node):
 					animacy=node.feats['Animacy']
 					)
 				return
+			
+		# participles
+		# in some languages, participles are used as attributes (they express case and degree)
+		if node.upos == 'ADJ' and node.feats['VerbForm'] == 'Part':
+			aux_forb = [x for x in node.children if x.udeprel == 'aux']
+			cop = [x for x in node.children if x.udeprel == 'cop']
+			
+			if not aux_forb and not cop:
+				refl = [x for x in node.children if x.feats['Reflex'] == 'Yes' and x.udeprel == 'expl']
+				neg = [x for x in node.children if x.feats['Polarity'] == 'Neg' and x.upos == 'PART']
+				phrase_ords = [node.ord] + [x.ord for x in refl] + [x.ord for x in neg]
+				phrase_ords.sort()
+
+				self.write_node_info(node,
+					aspect=node.feats['Aspect'],
+					tense=node.feats['Tense'],
+					number=node.feats['Number'],
+					form='Part',
+					voice=self.get_voice(node, refl),
+					reflex=self.get_is_reflex(node, refl),
+					polarity=self.get_polarity(node,neg),
+					ords=phrase_ords
+				)
+				return
 
-		cop = [x for x in node.children if x.udeprel == "cop" and x.feats['Tense'] == "Pres"]
-		aux = [x for x in node.children if x.udeprel == "aux" and x.feats['Mood'] == "Ind" and x.feats['Tense'] == 'Pres']
+		cop = [x for x in node.children if x.udeprel == 'cop' and x.feats['Tense'] == 'Pres']
+		aux = [x for x in node.children if x.udeprel == "aux" and x.feats['Mood'] == 'Ind' and x.feats['Tense'] == 'Pres']
 		aux_forb = [x for x in node.children if x.upos == 'AUX' and x.feats['Tense'] != 'Pres'] # in Serbian this can be a future tense
 		prep = [x for x in node.children if x.upos == 'ADP']
 		neg = [x for x in node.children if x.feats['Polarity'] == 'Neg' and x.upos == 'PART']
@@ -76,10 +99,10 @@ def process_node(self,node):
 			phrase_ords.sort()
 
 			self.write_node_info(node,
+					aspect=copVerb.feats['Aspect'],
 					tense='Pres',
 					person=copVerb.feats['Person'],
 					number=copVerb.feats['Number'],
-					aspect=node.feats['Aspect'],
 					mood='Ind',
 					form='Fin',
 					voice=self.get_voice(copVerb, refl),