def _make_token(self, start, end):
'''
Instantiates a Token from self._input_string[start:end]
'''
## all thfift strings must be encoded first
tok_string = self._input_string[start:end].encode('utf-8')
if only_whitespace.match(tok_string):
## drop any tokens with only whitespace
return None
tok = Token()
tok.token = tok_string
tok.token_num = self.tok_num
if 'BYTES' in self.config['offset_types']:
tok.offsets[OffsetType.BYTES] = Offset(
type = OffsetType.BYTES,
first=self.byte_idx + len(self._input_string[:start].encode('utf-8')),
length=len(tok_string),
value=self.config['offset_debugging'] and tok_string or None,
)
if 'LINES' in self.config['offset_types']:
tok.offsets[OffsetType.LINES] = Offset(
type = OffsetType.LINES,
first=self.line_idx,
length=1,
value=self.config['offset_debugging'] and tok_string or None,
)
self.tok_num += 1
## keep track of position within a sentence
tok.sentence_pos = self.sent_pos
self.sent_pos += 1
return tok
def test_entity_type():
tok_per = Token(entity_type=EntityType.PER)
tok_foo = Token(entity_type=EntityType.CUSTOM_TYPE,
custom_entity_type='foo')
assert get_entity_type(tok_per) == 'PER'
assert get_entity_type(tok_foo) == 'foo'
def _make_token(self, start, end):
'''
Instantiates a Token from self._input_string[start:end]
'''
## all thfift strings must be encoded first
tok_string = self._input_string[start:end].encode('utf-8')
if only_whitespace.match(tok_string):
## drop any tokens with only whitespace
return None
tok = Token()
tok.token = tok_string
tok.token_num = self.tok_num
if 'BYTES' in self.config['offset_types']:
tok.offsets[OffsetType.BYTES] = Offset(
type=OffsetType.BYTES,
first=self.byte_idx +
len(self._input_string[:start].encode('utf-8')),
length=len(tok_string),
value=self.config['offset_debugging'] and tok_string or None,
)
if 'LINES' in self.config['offset_types']:
tok.offsets[OffsetType.LINES] = Offset(
type=OffsetType.LINES,
first=self.line_idx,
length=1,
value=self.config['offset_debugging'] and tok_string or None,
)
self.tok_num += 1
## keep track of position within a sentence
tok.sentence_pos = self.sent_pos
self.sent_pos += 1
return tok
def make_sentences(self, stream_item):
'assemble Sentence and Token objects'
self.make_label_index(stream_item)
sentences = []
token_num = 0
new_mention_id = 0
for sent_start, sent_end, sent_str in self._sentences(stream_item.body.clean_visible):
assert isinstance(sent_str, unicode)
sent = Sentence()
sentence_pos = 0
for start, end in self.word_tokenizer.span_tokenize(sent_str):
try:
token_str = sent_str[start:end].encode('utf8')
except Exception, exc:
logger.critical("died on sent_str[%d:%d].encode('utf8')",
start, end, exc_info=True)
sys.exit('failed to cope with %r in %r' % (sent_str[start:end], sent_str))
tok = Token(
token_num=token_num,
token=token_str,
sentence_pos=sentence_pos,
)
tok.offsets[OffsetType.BYTES] = Offset(
type=OffsetType.BYTES,
first=sent_start + start,
length = end - start,
)
## whitespace tokenizer will never get a token
## boundary in the middle of an 'author' label
try:
#logger.debug('searching for %d in %r', sent_start + start, self.label_index._keys)
label = self.label_index.find_le(sent_start + start)
except ValueError:
label = None
if label:
off = label.offsets[OffsetType.BYTES]
if off.first + off.length > sent_start + start:
logger.info('overlapping label: %r' % label.target.target_id)
## overlaps
streamcorpus.add_annotation(tok, label)
assert label.annotator.annotator_id in tok.labels
logger.info('adding label to tok: %r has %r',
tok.token, label.target.target_id)
if label in self.label_to_mention_id:
mention_id = self.label_to_mention_id[label]
else:
mention_id = new_mention_id
new_mention_id += 1
self.label_to_mention_id[label] = mention_id
tok.mention_id = mention_id
token_num += 1
sentence_pos += 1
sent.tokens.append(tok)
sentences.append(sent)
def test_multi_token_match():
si = make_stream_item(0, '')
tagger_id = 'test_tagger'
annotator_id = 'test_anno'
target_id = 'test_target'
si.body.sentences[tagger_id] = [
Sentence(tokens=[
Token(token='This'),
Token(token='-LRB-big-RRB- dog'),
Token(token='Jake'),
Token(token='has'),
Token(token='no'),
Token(token=u'\u1F601'.encode('utf8')),
Token(token='...'),
Token(token='Teeth'),
])
]
rating = Rating(
annotator=Annotator(annotator_id=annotator_id),
target=Target(target_id=target_id),
mentions=['Big dog! Jake... ', u'\u1F601 Teeth'.encode('utf8')],
)
add_annotation(si, rating)
aligner_data = dict(
tagger_id=tagger_id,
annotator_id=annotator_id,
)
multi_token_match(si, aligner_data)
assert si.body.sentences[tagger_id][0].tokens[1].labels
assert si.body.sentences[tagger_id][0].tokens[2].labels
assert si.body.sentences[tagger_id][0].tokens[-3].labels
assert si.body.sentences[tagger_id][0].tokens[-2].labels
assert si.body.sentences[tagger_id][0].tokens[-1].labels
def make_sentences(self, stream_item):
'assemble Sentence and Token objects'
self.make_label_index(stream_item)
sentences = []
token_num = 0
new_mention_id = 0
for sent_start, sent_end, sent_str in self._sentences(
stream_item.body.clean_visible):
assert isinstance(sent_str, unicode)
sent = Sentence()
sentence_pos = 0
for start, end in self.word_tokenizer.span_tokenize(sent_str):
try:
token_str = sent_str[start:end].encode('utf8')
except Exception, exc:
logger.critical("died on sent_str[%d:%d].encode('utf8')",
start,
end,
exc_info=True)
sys.exit('failed to cope with %r in %r' %
(sent_str[start:end], sent_str))
tok = Token(
token_num=token_num,
token=token_str,
sentence_pos=sentence_pos,
)
tok.offsets[OffsetType.BYTES] = Offset(
type=OffsetType.BYTES,
first=sent_start + start,
length=end - start,
)
## whitespace tokenizer will never get a token
## boundary in the middle of an 'author' label
try:
#logger.debug('searching for %d in %r', sent_start + start, self.label_index._keys)
label = self.label_index.find_le(sent_start + start)
except ValueError:
label = None
if label:
off = label.offsets[OffsetType.BYTES]
if off.first + off.length > sent_start + start:
logger.info('overlapping label: %r' %
label.target.target_id)
## overlaps
streamcorpus.add_annotation(tok, label)
assert label.annotator.annotator_id in tok.labels
logger.info('adding label to tok: %r has %r',
tok.token, label.target.target_id)
if label in self.label_to_mention_id:
mention_id = self.label_to_mention_id[label]
else:
mention_id = new_mention_id
new_mention_id += 1
self.label_to_mention_id[label] = mention_id
tok.mention_id = mention_id
token_num += 1
sentence_pos += 1
sent.tokens.append(tok)
sentences.append(sent)
assert si.version == Versions.v0_3_0, 'new streamcorpus collections should be built using the latest version'
## clean_visible is byte identical to clean_html, except all the
## tags are converted to whitespace, so offsets in match
#input_html = si.body.clean_html = text.encode('utf8')
clean_visible = si.body.clean_visible.decode('utf8')
## run the text through a tagger
#tagger_output = my_tagger( clean_visible )
## to illustrate, here, we construct a single sentence of tokens
## with all the fields populated
first_sentence = Sentence()
first_sentence.tokens = [
Token(
token='The',
),
Token(
token='cat',
),
Token(
token='jumped',
),
Token(
token='over',
),
Token(
token='the',
),
Token(
token='car',