def detect_language(text, num_words=None, fail_silently=True):
"""
Detects the language from the value given based on ranges defined in active language packs.
:param unicode value: Input string.
:param int num_words: Number of words to base decision on.
:param bool fail_silently:
:return str: Language code.
"""
ensure_autodiscover()
if num_words is None:
num_words = get_setting('LANGUAGE_DETECTION_MAX_NUM_KEYWORDS')
most_common_words = extract_most_common_words(text, num_words=num_words)
counter = Counter()
available_language_packs = get_available_language_packs()
for word, occurrencies in most_common_words:
for letter in word:
for language_pack in available_language_packs:
if language_pack.contains(letter):
counter[language_pack.language_code] += 1
continue
try:
return counter.most_common(1)[0][0]
except Exception as e:
if get_setting('DEBUG'):
print_(e)
if not fail_silently:
raise LanguageDetectionError(_("""Can't detect language for the text "%s" given.""") % text)
def detect_language(text, num_words=None, fail_silently=True):
"""
Detects the language from the value given based on ranges defined in active language packs.
:param unicode value: Input string.
:param int num_words: Number of words to base decision on.
:param bool fail_silently:
:return str: Language code.
"""
ensure_autodiscover()
if num_words is None:
num_words = get_setting('LANGUAGE_DETECTION_MAX_NUM_KEYWORDS')
most_common_words = extract_most_common_words(text, num_words=num_words)
counter = Counter()
available_language_packs = get_available_language_packs()
for word, occurrencies in most_common_words:
for letter in word:
for language_pack in available_language_packs:
if language_pack.contains(letter):
counter[language_pack.language_code] += 1
continue
try:
return counter.most_common(1)[0][0]
except Exception as e:
if get_setting('DEBUG'):
print_(e)
if not fail_silently:
raise LanguageDetectionError(
_("""Can't detect language for the text "%s" given.""") % text)
def autodiscover():
"""
Auto-discovers the language packs in contrib/apps.
"""
LANGUAGES_DIR = get_setting('LANGUAGES_DIR')
LANGUAGE_PACK_MODULE_NAME = get_setting('LANGUAGE_PACK_MODULE_NAME')
DEBUG = get_setting('DEBUG')
for app_path in os.listdir(PROJECT_DIR(LANGUAGES_DIR)):
full_app_path = list(LANGUAGES_DIR)
full_app_path.append(app_path)
if os.path.isdir(PROJECT_DIR(full_app_path)):
try:
import_module(
"transliterate.{0}.{1}.{2}".format(
'.'.join(LANGUAGES_DIR),
app_path,
LANGUAGE_PACK_MODULE_NAME
)
)
except ImportError as e:
if DEBUG:
print_(e)
except Exception as e:
if DEBUG:
print_(e)
else:
pass
def detect_language(text,
num_words=None,
fail_silently=True,
heavy_check=False):
"""
Detects the language from the value given based on ranges defined in active
language packs.
:param unicode value: Input string.
:param int num_words: Number of words to base decision on.
:param bool fail_silently:
:param bool heavy_check: If given, heavy checks would be applied when
simple checks don't give any results. Heavy checks are language
specific and do not apply to a common logic. Heavy language detection
is defined in the ``detect`` method of each language pack.
:return str: Language code.
"""
ensure_autodiscover()
if num_words is None:
num_words = get_setting('LANGUAGE_DETECTION_MAX_NUM_KEYWORDS')
most_common_words = extract_most_common_words(text, num_words=num_words)
counter = Counter()
available_language_packs = get_available_language_packs()
for word, occurrencies in most_common_words:
for letter in word:
for language_pack in available_language_packs:
if language_pack.detectable and language_pack.contains(letter):
counter[language_pack.language_code] += 1
continue
try:
return counter.most_common(1)[0][0]
except Exception as e:
if get_setting('DEBUG'):
logger.debug(str(e))
if not fail_silently:
raise LanguageDetectionError(
_("""Can't detect language for the text "%s" given.""") % text)
def detect_language(text, num_words=None, fail_silently=True, heavy_check=False):
"""
Detects the language from the value given based on ranges defined in active
language packs.
:param unicode value: Input string.
:param int num_words: Number of words to base decision on.
:param bool fail_silently:
:param bool heavy_check: If given, heavy checks would be applied when
simple checks don't give any results. Heavy checks are language
specific and do not apply to a common logic. Heavy language detection
is defined in the ``detect`` method of each language pack.
:return str: Language code.
"""
ensure_autodiscover()
if num_words is None:
num_words = get_setting('LANGUAGE_DETECTION_MAX_NUM_KEYWORDS')
most_common_words = extract_most_common_words(text, num_words=num_words)
counter = Counter()
available_language_packs = get_available_language_packs()
for word, occurrencies in most_common_words:
for letter in word:
for language_pack in available_language_packs:
if language_pack.detectable and language_pack.contains(letter):
counter[language_pack.language_code] += 1
continue
try:
return counter.most_common(1)[0][0]
except Exception as e:
if get_setting('DEBUG'):
logger.debug(str(e))
if not fail_silently:
raise LanguageDetectionError(
_("""Can't detect language for the text "%s" given.""") % text
)
def autodiscover():
"""
Autodiscovers the language packs in contrib/apps.
"""
LANGUAGES_DIR = get_setting('LANGUAGES_DIR')
LANGUAGE_PACK_MODULE_NAME = get_setting('LANGUAGE_PACK_MODULE_NAME')
DEBUG = get_setting('DEBUG')
for app_path in os.listdir(PROJECT_DIR(LANGUAGES_DIR)):
full_app_path = list(LANGUAGES_DIR)
full_app_path.append(app_path)
if os.path.isdir(PROJECT_DIR(full_app_path)):
try:
import_module("transliterate.{0}.{1}.{2}".format(
'.'.join(LANGUAGES_DIR), app_path,
LANGUAGE_PACK_MODULE_NAME))
except ImportError as e:
if DEBUG:
print_(e)
except Exception as e:
if DEBUG:
print_(e)
else:
pass
def extract_most_common_words(text, num_words=None):
"""
Extracts most common words.
:param unicode text:
:param int num_words:
:return list:
"""
if num_words is None:
num_words = get_setting('LANGUAGE_DETECTION_MAX_NUM_KEYWORDS')
text = strip_numbers(text)
counter = Counter()
for word in text.split(' '):
if len(word) > 1:
counter[word] += 1
return counter.most_common(num_words)
def extract_most_common_words(text, num_words=None):
"""
Extracts most common words.
:param unicode text:
:param int num_words:
:return list:
"""
if num_words is None:
num_words = get_setting('LANGUAGE_DETECTION_MAX_NUM_KEYWORDS')
text = strip_numbers(text)
counter = Counter()
for word in text.split(' '):
if len(word) > 1:
counter[word] += 1
return counter.most_common(num_words)
def override_settings():
return get_setting('LANGUAGE_DETECTION_MAX_NUM_KEYWORDS')
__title__ = 'transliterate.settings'
__version__ = '1.0'
__build__ = 0x000010
__author__ = 'Artur Barseghyan'
__all__ = ('LANGUAGES_DIR', 'CONTRIB_DIR', 'LANGUAGE_PACK_MODULE_NAME',
'LANGUAGE_DETECTION_MAX_NUM_KEYWORDS', 'DEBUG')
import warnings
warnings.warn(
"""transliterate.settings is deprecated; use transliterate.conf.get_setting function instead.""",
DeprecationWarning)
from transliterate.conf import get_setting
LANGUAGES_DIR = get_setting('LANGUAGES_DIR')
CONTRIB_DIR = get_setting('CONTRIB_DIR')
LANGUAGE_PACK_MODULE_NAME = get_setting('LANGUAGE_PACK_MODULE_NAME')
LANGUAGE_DETECTION_MAX_NUM_KEYWORDS = get_setting(
'LANGUAGE_DETECTION_MAX_NUM_KEYWORDS')
DEBUG = get_setting('DEBUG')
def override_settings():
return get_setting('LANGUAGE_DETECTION_MAX_NUM_KEYWORDS')
__title__ = 'transliterate.settings'
__version__ = '1.0'
__build__ = 0x000010
__author__ = 'Artur Barseghyan'
__all__ = ('LANGUAGES_DIR', 'CONTRIB_DIR', 'LANGUAGE_PACK_MODULE_NAME', 'LANGUAGE_DETECTION_MAX_NUM_KEYWORDS', 'DEBUG')
import warnings
warnings.warn("""transliterate.settings is deprecated; use transliterate.conf.get_setting function instead.""",
DeprecationWarning)
from transliterate.conf import get_setting
LANGUAGES_DIR = get_setting('LANGUAGES_DIR')
CONTRIB_DIR = get_setting('CONTRIB_DIR')
LANGUAGE_PACK_MODULE_NAME = get_setting('LANGUAGE_PACK_MODULE_NAME')
LANGUAGE_DETECTION_MAX_NUM_KEYWORDS = get_setting('LANGUAGE_DETECTION_MAX_NUM_KEYWORDS')
DEBUG = get_setting('DEBUG')
