<s> """<STR_LIT>""" <EOL> from __future__ import print_function <EOL> from nltk . grammar import CFG , FeatureGrammar , PCFG <EOL> from nltk . data import load <EOL> from nltk . parse . chart import Chart , ChartParser <EOL> from nltk . parse . pchart import InsideChartParser <EOL> from nltk . parse . featurechart import FeatureChart , FeatureChartParser <EOL> def load_parser ( grammar_url , trace = <NUM_LIT:0> , <EOL> parser = None , chart_class = None , <EOL> beam_size = <NUM_LIT:0> , ** load_args ) : <EOL> """<STR_LIT>""" <EOL> grammar = load ( grammar_url , ** load_args ) <EOL> if not isinstance ( grammar , CFG ) : <EOL> raise ValueError ( "<STR_LIT>" <EOL> "<STR_LIT>" ) <EOL> if isinstance ( grammar , PCFG ) : <EOL> if parser is None : <EOL> parser = InsideChartParser <EOL> return parser ( grammar , trace = trace , beam_size = beam_size ) <EOL> elif isinstance ( grammar , FeatureGrammar ) : <EOL> if parser is None : <EOL> parser = FeatureChartParser <EOL> if chart_class is None : <EOL> chart_class = FeatureChart <EOL> return parser ( grammar , trace = trace , chart_class = chart_class ) <EOL> else : <EOL> if parser is None : <EOL> parser = ChartParser <EOL> if chart_class is None : <EOL> chart_class = Chart <EOL> return parser ( grammar , trace = trace , chart_class = chart_class ) <EOL> def taggedsent_to_conll ( sentence ) : <EOL> """<STR_LIT>""" <EOL> for ( i , ( word , tag ) ) in enumerate ( sentence , start = <NUM_LIT:1> ) : <EOL> input_str = [ str ( i ) , word , '<STR_LIT:_>' , tag , tag , '<STR_LIT:_>' , '<STR_LIT:0>' , '<STR_LIT:a>' , '<STR_LIT:_>' , '<STR_LIT:_>' ] <EOL> input_str = "<STR_LIT:\t>" . join ( input_str ) + "<STR_LIT:\n>" <EOL> yield input_str <EOL> def taggedsents_to_conll ( sentences ) : <EOL> """<STR_LIT>""" <EOL> for sentence in sentences : <EOL> for input_str in taggedsent_to_conll ( sentence ) : <EOL> yield input_str <EOL> yield '<STR_LIT>' <EOL> class TestGrammar ( object ) : <EOL> """<STR_LIT>""" <EOL> def __init__ ( self , grammar , suite , accept = None , reject = None ) : <EOL> self . test_grammar = grammar <EOL> self . cp = load_parser ( grammar , trace = <NUM_LIT:0> ) <EOL> self . suite = suite <EOL> self . _accept = accept <EOL> self . _reject = reject <EOL> def run ( self , show_trees = False ) : <EOL> """<STR_LIT>""" <EOL> for test in self . suite : <EOL> print ( test [ '<STR_LIT>' ] + "<STR_LIT::>" , end = '<STR_LIT:U+0020>' ) <EOL> for key in [ '<STR_LIT>' , '<STR_LIT>' ] : <EOL> for sent in test [ key ] : <EOL> tokens = sent . split ( ) <EOL> trees = list ( self . cp . parse ( tokens ) ) <EOL> if show_trees and trees : <EOL> print ( ) <EOL> print ( sent ) <EOL> for tree in trees : <EOL> print ( tree ) <EOL> if key == '<STR_LIT>' : <EOL> if trees == [ ] : <EOL> raise ValueError ( "<STR_LIT>" % sent ) <EOL> else : <EOL> accepted = True <EOL> else : <EOL> if trees : <EOL> raise ValueError ( "<STR_LIT>" % sent ) <EOL> else : <EOL> rejected = True <EOL> if accepted and rejected : <EOL> print ( "<STR_LIT>" ) <EOL> def extract_test_sentences ( string , comment_chars = "<STR_LIT>" , encoding = None ) : <EOL> """<STR_LIT>""" <EOL> if encoding is not None : <EOL> string = string . decode ( encoding ) <EOL> sentences = [ ] <EOL> for sentence in string . split ( '<STR_LIT:\n>' ) : <EOL> if sentence == '<STR_LIT>' or sentence [ <NUM_LIT:0> ] in comment_chars : <EOL> continue <EOL> split_info = sentence . split ( '<STR_LIT::>' , <NUM_LIT:1> ) <EOL> result = None <EOL> if len ( split_info ) == <NUM_LIT:2> : <EOL> if split_info [ <NUM_LIT:0> ] in [ '<STR_LIT:True>' , '<STR_LIT:true>' , '<STR_LIT:False>' , '<STR_LIT:false>' ] : <EOL> result = split_info [ <NUM_LIT:0> ] in [ '<STR_LIT:True>' , '<STR_LIT:true>' ] <EOL> sentence = split_info [ <NUM_LIT:1> ] <EOL> else : <EOL> result = int ( split_info [ <NUM_LIT:0> ] ) <EOL> sentence = split_info [ <NUM_LIT:1> ] <EOL> tokens = sentence . split ( ) <EOL> if tokens == [ ] : <EOL> continue <EOL> sentences += [ ( tokens , result ) ] <EOL> return sentences <EOL> extract_test_sentences . __test__ = False </s>
