def get_text_language(text):
language_rank = {}
tokens = utils.get_tokens(text)
for language in language_helper.get_languages():
c_stopwords = language_helper.get_language_stopwords(language)
language_rank[language] = reduce(lambda carry, curr: carry + 1 if curr in c_stopwords else carry, tokens, 0)
sorted_languages = sorted(language_rank.iteritems(), key=lambda x: -x[1])
return sorted_languages[0][0]
def __get_stopwords_regex(language):
if language in language_stopwords_re:
return language_stopwords_re[language]
l_stopwords = language_helper.get_language_stopwords(language)
re_stopwords = []
for stopword in l_stopwords:
stopword_re = r'\b' + stopword + r'(?![\w-])'
re_stopwords.append(stopword_re)
language_stopwords_re[language] = re.compile('|'.join(re_stopwords), re.IGNORECASE)
return language_stopwords_re[language]
def _filter_tagged_tokens(tagged_tokens, language):
stop_words = language_helper.get_language_stopwords(language)
filtered_tagged_tokens = filter(lambda t: t[0] not in stop_words and t[1] in valid_pos_tags, tagged_tokens)
filtered_tokens = map(lambda t: t[0].lower(), filtered_tagged_tokens)
return filtered_tokens
