def extract_sentences(self, page_text):
"""Finds all sentences that contain the term or a spelling variants.
Sets self.sentences ans self.variants.
Args:
page_text: str
Returns
str -- cleaned page text.
"""
doc = []
for paragraph in page_text.split('\n\n'):
if is_english(paragraph):
for sentence in paragraph_to_sentences(paragraph, self.term):
if qualify_sentence(sentence):
doc.append(sentence)
s_clean, variants = clean_sentence(sentence, self.term)
if variants and s_clean not in [
s['s_clean'] for s in self.sentences
]:
self.variants.update(variants)
self.sentences.append({
's': sentence,
's_clean': s_clean
})
return " ".join(doc)
def test_english_detection():
from serapis.language import is_english
with open("serapis/tests/data/language_detection.csv") as f:
test_cases = list(csv.reader(f))
for language, sentence in test_cases:
sentence = sentence.decode('utf-8')
detected_english = is_english(sentence)
if 'english' == language:
assert detected_english, "Falsely classified '{}...' as non-English".format(sentence[:40])
else:
assert not detected_english, "Falsely classified '{}...' as English".format(sentence[:40])
def test_english_detection():
from serapis.language import is_english
with open("serapis/tests/data/language_detection.csv") as f:
test_cases = list(csv.reader(f))
for language, sentence in test_cases:
sentence = sentence.decode('utf-8')
detected_english = is_english(sentence)
if 'english' == language:
assert detected_english, "Falsely classified '{}...' as non-English".format(
sentence[:40])
else:
assert not detected_english, "Falsely classified '{}...' as English".format(
sentence[:40])
def qualify_search_result(url, text, date=None):
"""Heuristically determines if a search result is worth parsing.
Args:
url: str
text: str -- Preview or summary
date: str -- ISO8601 formatted
Returns:
bool -- True if the search result is worth parsing.
"""
for domain in config.exclude_domains:
if domain in url:
return False
if text and not is_english(text):
log.info("Excluded non-english result '{}'".format(text))
return False
parts = urlparse.urlparse(url)
if parts.path.endswith(".pdf"):
return False
return True
def qualify_search_result(url, text, date=None):
"""Heuristically determines if a search result is worth parsing.
Args:
url: str
text: str -- Preview or summary
date: str -- ISO8601 formatted
Returns:
bool -- True if the search result is worth parsing.
"""
for domain in config.exclude_domains:
if domain in url:
return False
if text and not is_english(text):
log.info("Excluded non-english result '{}'".format(text))
return False
parts = urlparse.urlparse(url)
if parts.path.endswith(".pdf"):
return False
return True
def extract_sentences(self, page_text):
"""Finds all sentences that contain the term or a spelling variants.
Sets self.sentences ans self.variants.
Args:
page_text: str
Returns
str -- cleaned page text.
"""
doc = []
for paragraph in page_text.split('\n\n'):
if is_english(paragraph):
for sentence in paragraph_to_sentences(paragraph, self.term):
if qualify_sentence(sentence):
doc.append(sentence)
s_clean, variants = clean_sentence(sentence, self.term)
if variants and s_clean not in [s['s_clean'] for s in self.sentences]:
self.variants.update(variants)
self.sentences.append({
's': sentence,
's_clean': s_clean
})
return " ".join(doc)
