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"""tutorial.AddCommas block template."""
from udapi.core.block import Block
# nickname = xy123
# TODO: make up a unique nickname and edit the previous line
# if you want your results to be listed on the NPFL070 web (under that nickname).
# Delete the line if you don't want to listed on the web.
class AddCommas(Block):
"""Heuristically insert nodes for missing commas."""
def __init__(self, language='en', **kwargs):
super().__init__(**kwargs)
self.language = language
def process_node(self, node):
# TODO: Your task: implement some heuristics
if self.should_add_comma_before(node):
comma = node.create_child(form=',', deprel='punct', upos='PUNCT')
comma.shift_before_node(node)
def should_add_comma_before(self, node):
prev_node = node.prev_node
if prev_node is None:
return False
if self.language == 'en' and prev_node.lemma == 'however':
return True
if any(n.deprel == 'appos' for n in prev_node.children):
return True
return False