name : indonesian_stemmer.py # Generated by Snowball 2.2.0 - https://snowballstem.org/ from .basestemmer import BaseStemmer from .among import Among class IndonesianStemmer(BaseStemmer): ''' This class implements the stemming algorithm defined by a snowball script. Generated by Snowball 2.2.0 - https://snowballstem.org/ ''' a_0 = [ Among(u"kah", -1, 1), Among(u"lah", -1, 1), Among(u"pun", -1, 1) ] a_1 = [ Among(u"nya", -1, 1), Among(u"ku", -1, 1), Among(u"mu", -1, 1) ] a_2 = [ Among(u"i", -1, 1, "_IndonesianStemmer__r_SUFFIX_I_OK"), Among(u"an", -1, 1, "_IndonesianStemmer__r_SUFFIX_AN_OK"), Among(u"kan", 1, 1, "_IndonesianStemmer__r_SUFFIX_KAN_OK") ] a_3 = [ Among(u"di", -1, 1), Among(u"ke", -1, 2), Among(u"me", -1, 1), Among(u"mem", 2, 5), Among(u"men", 2, 1), Among(u"meng", 4, 1), Among(u"meny", 4, 3, "_IndonesianStemmer__r_VOWEL"), Among(u"pem", -1, 6), Among(u"pen", -1, 2), Among(u"peng", 8, 2), Among(u"peny", 8, 4, "_IndonesianStemmer__r_VOWEL"), Among(u"ter", -1, 1) ] a_4 = [ Among(u"be", -1, 3, "_IndonesianStemmer__r_KER"), Among(u"belajar", 0, 4), Among(u"ber", 0, 3), Among(u"pe", -1, 1), Among(u"pelajar", 3, 2), Among(u"per", 3, 1) ] g_vowel = [17, 65, 16] I_prefix = 0 I_measure = 0 def __r_remove_particle(self): self.ket = self.cursor if self.find_among_b(IndonesianStemmer.a_0) == 0: return False self.bra = self.cursor if not self.slice_del(): return False self.I_measure -= 1 return True def __r_remove_possessive_pronoun(self): self.ket = self.cursor if self.find_among_b(IndonesianStemmer.a_1) == 0: return False self.bra = self.cursor if not self.slice_del(): return False self.I_measure -= 1 return True def __r_SUFFIX_KAN_OK(self): if not self.I_prefix != 3: return False if not self.I_prefix != 2: return False return True def __r_SUFFIX_AN_OK(self): if not self.I_prefix != 1: return False return True def __r_SUFFIX_I_OK(self): if not self.I_prefix <= 2: return False v_1 = self.limit - self.cursor try: if not self.eq_s_b(u"s"): raise lab0() return False except lab0: pass self.cursor = self.limit - v_1 return True def __r_remove_suffix(self): self.ket = self.cursor if self.find_among_b(IndonesianStemmer.a_2) == 0: return False self.bra = self.cursor if not self.slice_del(): return False self.I_measure -= 1 return True def __r_VOWEL(self): if not self.in_grouping(IndonesianStemmer.g_vowel, 97, 117): return False return True def __r_KER(self): if not self.out_grouping(IndonesianStemmer.g_vowel, 97, 117): return False if not self.eq_s(u"er"): return False return True def __r_remove_first_order_prefix(self): self.bra = self.cursor among_var = self.find_among(IndonesianStemmer.a_3) if among_var == 0: return False self.ket = self.cursor if among_var == 1: if not self.slice_del(): return False self.I_prefix = 1 self.I_measure -= 1 elif among_var == 2: if not self.slice_del(): return False self.I_prefix = 3 self.I_measure -= 1 elif among_var == 3: self.I_prefix = 1 if not self.slice_from(u"s"): return False self.I_measure -= 1 elif among_var == 4: self.I_prefix = 3 if not self.slice_from(u"s"): return False self.I_measure -= 1 elif among_var == 5: self.I_prefix = 1 self.I_measure -= 1 try: v_1 = self.cursor try: v_2 = self.cursor if not self.in_grouping(IndonesianStemmer.g_vowel, 97, 117): raise lab1() self.cursor = v_2 if not self.slice_from(u"p"): return False raise lab0() except lab1: pass self.cursor = v_1 if not self.slice_del(): return False except lab0: pass else: self.I_prefix = 3 self.I_measure -= 1 try: v_3 = self.cursor try: v_4 = self.cursor if not self.in_grouping(IndonesianStemmer.g_vowel, 97, 117): raise lab3() self.cursor = v_4 if not self.slice_from(u"p"): return False raise lab2() except lab3: pass self.cursor = v_3 if not self.slice_del(): return False except lab2: pass return True def __r_remove_second_order_prefix(self): self.bra = self.cursor among_var = self.find_among(IndonesianStemmer.a_4) if among_var == 0: return False self.ket = self.cursor if among_var == 1: if not self.slice_del(): return False self.I_prefix = 2 self.I_measure -= 1 elif among_var == 2: if not self.slice_from(u"ajar"): return False self.I_measure -= 1 elif among_var == 3: if not self.slice_del(): return False self.I_prefix = 4 self.I_measure -= 1 else: if not self.slice_from(u"ajar"): return False self.I_prefix = 4 self.I_measure -= 1 return True def _stem(self): self.I_measure = 0 v_1 = self.cursor try: while True: v_2 = self.cursor try: if not self.go_out_grouping(IndonesianStemmer.g_vowel, 97, 117): raise lab1() self.cursor += 1 self.I_measure += 1 continue except lab1: pass self.cursor = v_2 break except lab0: pass self.cursor = v_1 if not self.I_measure > 2: return False self.I_prefix = 0 self.limit_backward = self.cursor self.cursor = self.limit v_3 = self.limit - self.cursor self.__r_remove_particle() self.cursor = self.limit - v_3 if not self.I_measure > 2: return False v_4 = self.limit - self.cursor self.__r_remove_possessive_pronoun() self.cursor = self.limit - v_4 self.cursor = self.limit_backward if not self.I_measure > 2: return False try: v_5 = self.cursor try: v_6 = self.cursor if not self.__r_remove_first_order_prefix(): raise lab3() v_7 = self.cursor try: v_8 = self.cursor if not self.I_measure > 2: raise lab4() self.limit_backward = self.cursor self.cursor = self.limit if not self.__r_remove_suffix(): raise lab4() self.cursor = self.limit_backward self.cursor = v_8 if not self.I_measure > 2: raise lab4() if not self.__r_remove_second_order_prefix(): raise lab4() except lab4: pass self.cursor = v_7 self.cursor = v_6 raise lab2() except lab3: pass self.cursor = v_5 v_9 = self.cursor self.__r_remove_second_order_prefix() self.cursor = v_9 v_10 = self.cursor try: if not self.I_measure > 2: raise lab5() self.limit_backward = self.cursor self.cursor = self.limit if not self.__r_remove_suffix(): raise lab5() self.cursor = self.limit_backward except lab5: pass self.cursor = v_10 except lab2: pass return True class lab0(BaseException): pass class lab1(BaseException): pass class lab2(BaseException): pass class lab3(BaseException): pass class lab4(BaseException): pass class lab5(BaseException): pass