def test_stop_lang():
stopper = analysis.RegexTokenizer() | analysis.StopFilter()
ls = [token.text for token in stopper(u("this is a test"))]
assert ls == [u("test")]
es_stopper = analysis.RegexTokenizer() | analysis.StopFilter(lang="es")
ls = [token.text for token in es_stopper(u("el lapiz es en la mesa"))]
assert ls == ["lapiz", "mesa"]
def populate_whoosh(text_dir, whoosh_dir):
loaded = 0
## Create analyzer used for tokenizing and normalizing tokens
my_analyzer = (analysis.RegexTokenizer() | analysis.LowercaseFilter()
| analysis.StopFilter())
# Create schema
schema = Schema(url=ID(stored=True),
body=TEXT(stored=True, analyzer=my_analyzer))
# Setup index
os.makedirs(whoosh_dir, exist_ok=True)
ix = index.create_in(whoosh_dir, schema)
# Clear index
writer = ix.writer()
writer.commit(mergetype=writing.CLEAR)
# Index documents
writer = ix.writer()
for root, dirs, files in os.walk(text_dir, topdown=False):
for name in files:
text_file = os.path.join(root, name)
with open(text_file, encoding="utf8") as tf:
body = tf.read()
url = text_file.replace(text_dir, "")
writer.add_document(url=url, body=body)
print("Added", url)
loaded += 1
writer.commit()
print("\n\nLoaded", loaded, "documents")
def test_biword_stopwords():
# Note that the stop list is None here
ana = (analysis.RegexTokenizer()
| analysis.StopFilter(stoplist=None, minsize=3)
| analysis.BiWordFilter())
texts = [t.text for t in ana(u("stuff and then some"))]
assert texts == ["stuff-and", "and-then", "then-some"]
# Use a stop list here
ana = (analysis.RegexTokenizer()
| analysis.LowercaseFilter()
| analysis.StopFilter()
| analysis.BiWordFilter())
texts = [t.text for t in ana(u("stuff and then some"))]
assert texts == ["stuff-then", "then-some"]
def test_composition2():
ca = analysis.RegexTokenizer() | analysis.LowercaseFilter()
sa = ca | analysis.StopFilter()
assert_equal(len(sa), 3)
assert_equal(sa.__class__.__name__, "CompositeAnalyzer")
assert_equal(sa[0].__class__.__name__, "RegexTokenizer")
assert_equal(sa[1].__class__.__name__, "LowercaseFilter")
assert_equal(sa[2].__class__.__name__, "StopFilter")
assert_equal([t.text for t in sa(u("The ABC 123"))], ["abc", "123"])
def test_shingle_stopwords():
# Note that the stop list is None here
ana = (analysis.RegexTokenizer()
| analysis.StopFilter(stoplist=None, minsize=3)
| analysis.ShingleFilter(size=3))
texts = [t.text for t
in ana(u("some other stuff and then some things To Check "))]
assert texts == ["some-other-stuff", "other-stuff-and", "stuff-and-then",
"and-then-some", "then-some-things", "some-things-Check"]
# Use a stop list here
ana = (analysis.RegexTokenizer()
| analysis.LowercaseFilter()
| analysis.StopFilter()
| analysis.ShingleFilter(size=3))
texts = [t.text for t
in ana(u("some other stuff and then some things To Check "))]
assert texts == ["some-other-stuff", "other-stuff-then", "stuff-then-some",
"then-some-things", "some-things-check"]
def populate_whoosh(text_dir, whoosh_dir):
loaded = 0
# Create analyzer used for tokenizing and normalizing tokens
# 000, 001, 010, 011,
my_analyzers = [(analysis.RegexTokenizer()),
(analysis.RegexTokenizer() | analysis.LowercaseFilter()),
(analysis.RegexTokenizer() | analysis.LowercaseFilter()
| analysis.StopFilter()), (analysis.StemmingAnalyzer())]
# Create schemas
schemas = []
for my_analyzer in my_analyzers:
schema = Schema(url=ID(stored=True),
body=TEXT(stored=True, analyzer=my_analyzer))
schemas.append(schema)
# Setup index
ixs = []
for i, my_analyzer in enumerate(my_analyzers):
whoosh_dir_current = whoosh_dir + str(i) + '/'
os.makedirs(whoosh_dir_current, exist_ok=True)
ix = index.create_in(whoosh_dir_current, schemas[i])
ixs.append(ix)
# Clear index
writers = []
for i, my_analyzer in enumerate(my_analyzer):
writer = ixs[i].writer()
writer.commit(mergetype=writing.CLEAR)
writer = ixs[i].writer()
writers.append(writer)
# Index documents
for root, dirs, files in os.walk(text_dir, topdown=False):
for name in files:
text_file = os.path.join(root, name)
print('.', end='')
with open(text_file) as tf:
body = tf.read()
url = text_file.replace(text_dir, "")
for writer in writers:
writer.add_document(url=url, body=body)
# print("Added", url)
loaded += 1
for writer in writers:
writer.commit()
print("\n\nLoaded", loaded, "documents")
def test_composition3():
sa = analysis.RegexTokenizer() | analysis.StopFilter()
assert_equal(sa.__class__.__name__, "CompositeAnalyzer")
