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__all__ = ('language', 'stemmer')
from .danish_stemmer import DanishStemmer
from .dutch_stemmer import DutchStemmer
from .english_stemmer import EnglishStemmer
from .finnish_stemmer import FinnishStemmer
from .french_stemmer import FrenchStemmer
from .german_stemmer import GermanStemmer
from .hungarian_stemmer import HungarianStemmer
from .italian_stemmer import ItalianStemmer
from .norwegian_stemmer import NorwegianStemmer
from .porter_stemmer import PorterStemmer
from .portuguese_stemmer import PortugueseStemmer
from .romanian_stemmer import RomanianStemmer
from .russian_stemmer import RussianStemmer
from .spanish_stemmer import SpanishStemmer
from .swedish_stemmer import SwedishStemmer
from .turkish_stemmer import TurkishStemmer
_languages = {
'danish': DanishStemmer,
'dutch': DutchStemmer,
'english': EnglishStemmer,
'finnish': FinnishStemmer,
'french': FrenchStemmer,
'german': GermanStemmer,
'hungarian': HungarianStemmer,
'italian': ItalianStemmer,
'norwegian': NorwegianStemmer,
'porter': PorterStemmer,
'portuguese': PortugueseStemmer,
'romanian': RomanianStemmer,
'russian': RussianStemmer,
'spanish': SpanishStemmer,
'swedish': SwedishStemmer,
'turkish': TurkishStemmer,
}
try:
import Stemmer
cext_available = True
except ImportError:
cext_available = False
def algorithms():
if cext_available:
return Stemmer.language()
else:
return list(_languages.keys())
def stemmer(lang):
if cext_available:
return Stemmer.Stemmer(lang)
if lang.lower() in _languages:
return _languages[lang.lower()]()
else:
raise KeyError("Stemming algorithm '%s' not found" % lang)