# Generated from danish.sbl by Snowball 3.1.1 - https://snowballstem.org/ from .basestemmer import BaseStemmer from .among import Among class DanishStemmer(BaseStemmer): ''' This class implements the stemming algorithm defined by a snowball script. Generated from danish.sbl by Snowball 3.1.1 - https://snowballstem.org/ ''' g_undouble_c = {"b", "d", "f", "g", "k", "l", "m", "n", "p", "r", "s", "t"} g_v = {"a", "e", "i", "o", "u", "y", "å", "æ", "ø"} g_s_ending = {"'", "a", "b", "c", "d", "f", "g", "h", "j", "k", "l", "m", "n", "o", "p", "r", "t", "v", "y", "z", "å"} I_p1 = 0 def __r_mark_regions(self): self.I_p1 = self.limit v_1 = self.cursor try: while True: v_2 = self.cursor try: while True: try: if self.cursor == self.limit or self.current[self.cursor] != "'": raise lab2() self.cursor += 1 break except lab2: pass if self.cursor >= self.limit: raise lab1() self.cursor += 1 break except lab1: pass self.cursor = v_2 if not self.go_out_grouping(DanishStemmer.g_v): raise lab0() self.cursor += 1 if not self.go_in_grouping(DanishStemmer.g_v): raise lab0() self.cursor += 1 break self.I_p1 = self.cursor except lab0: pass self.cursor = v_1 v_3 = self.cursor if self.cursor + 3 > self.limit: return False self.cursor += 3 try: if self.I_p1 >= self.cursor: raise lab0() self.I_p1 = self.cursor except lab0: pass self.cursor = v_3 return True def __r_main_suffix(self): if self.cursor < self.I_p1: return False v_2 = self.limit_backward self.limit_backward = self.I_p1 self.ket = self.cursor among_var = self.find_among_b(DanishStemmer.a_0) if among_var == 0: self.limit_backward = v_2 return False self.bra = self.cursor self.limit_backward = v_2 if among_var == 1: self.slice_del() else: if not self.in_grouping_b(DanishStemmer.g_s_ending): return False self.slice_del() return True def __r_consonant_pair(self): v_1 = self.limit - self.cursor if self.cursor < self.I_p1: return False v_3 = self.limit_backward self.limit_backward = self.I_p1 self.ket = self.cursor if self.find_among_b(DanishStemmer.a_1) == 0: self.limit_backward = v_3 return False self.bra = self.cursor self.limit_backward = v_3 self.cursor = self.limit - v_1 if self.cursor <= self.limit_backward: return False self.cursor -= 1 self.bra = self.cursor self.slice_del() return True def __r_other_suffix(self): v_1 = self.limit - self.cursor try: self.ket = self.cursor if not self.eq_s_b("st"): raise lab0() self.bra = self.cursor if not self.eq_s_b("ig"): raise lab0() self.slice_del() except lab0: pass self.cursor = self.limit - v_1 if self.cursor < self.I_p1: return False v_3 = self.limit_backward self.limit_backward = self.I_p1 self.ket = self.cursor among_var = self.find_among_b(DanishStemmer.a_2) if among_var == 0: self.limit_backward = v_3 return False self.bra = self.cursor self.limit_backward = v_3 if among_var == 1: self.slice_del() v_4 = self.limit - self.cursor self.__r_consonant_pair() self.cursor = self.limit - v_4 else: self.slice_from("løs") return True def __r_undouble(self): if self.cursor < self.I_p1: return False v_2 = self.limit_backward self.limit_backward = self.I_p1 self.ket = self.cursor if not self.in_grouping_b(DanishStemmer.g_undouble_c): self.limit_backward = v_2 return False self.bra = self.cursor S_ch = self.slice_to() self.limit_backward = v_2 if not self.eq_s_b(S_ch): return False self.slice_del() return True def _stem(self): if not self.__r_mark_regions(): return False self.limit_backward = self.cursor self.cursor = self.limit v_1 = self.limit - self.cursor self.__r_main_suffix() self.cursor = self.limit - v_1 v_2 = self.limit - self.cursor self.__r_consonant_pair() self.cursor = self.limit - v_2 v_3 = self.limit - self.cursor self.__r_other_suffix() self.cursor = self.limit - v_3 v_4 = self.limit - self.cursor self.__r_undouble() self.cursor = self.limit - v_4 self.ket = self.cursor if self.cursor <= self.limit_backward or self.current[self.cursor - 1] != "'": return False self.cursor -= 1 self.bra = self.cursor self.slice_del() self.cursor = self.limit_backward return True a_0 = [ Among("hed", -1, 1), Among("ethed", 0, 1), Among("ered", -1, 1), Among("e", -1, 1), Among("erede", 3, 1), Among("ende", 3, 1), Among("erende", 5, 1), Among("ene", 3, 1), Among("erne", 3, 1), Among("ere", 3, 1), Among("en", -1, 1), Among("heden", 10, 1), Among("eren", 10, 1), Among("er", -1, 1), Among("heder", 13, 1), Among("erer", 13, 1), Among("s", -1, 2), Among("heds", 16, 1), Among("es", 16, 1), Among("endes", 18, 1), Among("erendes", 19, 1), Among("enes", 18, 1), Among("ernes", 18, 1), Among("eres", 18, 1), Among("ens", 16, 1), Among("hedens", 24, 1), Among("erens", 24, 1), Among("ers", 16, 1), Among("ets", 16, 1), Among("erets", 28, 1), Among("et", -1, 1), Among("eret", 30, 1) ] a_1 = [ Among("gd", -1, -1), Among("dt", -1, -1), Among("gt", -1, -1), Among("kt", -1, -1) ] a_2 = [ Among("ig", -1, 1), Among("lig", 0, 1), Among("elig", 1, 1), Among("els", -1, 1), Among("løst", -1, 2) ] class lab0(BaseException): pass class lab1(BaseException): pass class lab2(BaseException): pass