# Generated from czech.sbl by Snowball 3.1.1 - https://snowballstem.org/ from .basestemmer import BaseStemmer from .among import Among class CzechStemmer(BaseStemmer): ''' This class implements the stemming algorithm defined by a snowball script. Generated from czech.sbl by Snowball 3.1.1 - https://snowballstem.org/ ''' g_v = {"a", "e", "i", "o", "u", "y", "á", "é", "í", "ó", "ú", "ý", "ě", "ů"} g_v_or_syllabic_c = {"a", "e", "i", "l", "o", "r", "u", "y", "á", "é", "í", "ó", "ú", "ý", "ě", "ů"} g_ev_ending = {"h", "k", "n", "r", "t", "z"} g_env_ending = {"b", "c", "d", "h", "k", "p", "r", "s", "t", "v", "z", "č", "š", "ž"} I_p1 = 0 def __r_mark_regions(self): v_1 = self.cursor if self.cursor + 3 > self.limit: return False self.cursor += 3 I_x = self.cursor self.cursor = v_1 self.I_p1 = self.limit v_2 = self.cursor try: while True: try: if not self.in_grouping(CzechStemmer.g_v): raise lab1() break except lab1: pass if self.cursor >= self.limit: raise lab0() self.cursor += 1 if not self.go_out_grouping(CzechStemmer.g_v_or_syllabic_c): raise lab0() self.cursor += 1 break if not self.go_in_grouping(CzechStemmer.g_v): raise lab0() self.cursor += 1 self.I_p1 = self.cursor try: if self.I_p1 >= I_x: raise lab1() self.I_p1 = I_x except lab1: pass except lab0: pass self.cursor = v_2 return True def __r_palatalise_e(self): self.ket = self.cursor among_var = self.find_among_b(CzechStemmer.a_0) if among_var == 0: return False self.bra = self.cursor if among_var > 0: self.slice_from(CzechStemmer.as_0[among_var - 1]) return True def __r_palatalise_i(self): self.ket = self.cursor among_var = self.find_among_b(CzechStemmer.a_1) if among_var == 0: return False self.bra = self.cursor if among_var > 0: self.slice_from(CzechStemmer.as_1[among_var - 1]) return True def __r_possessive_suffix(self): self.ket = self.cursor among_var = self.find_among_b(CzechStemmer.a_2) if among_var == 0: return False self.bra = self.cursor if self.I_p1 > self.cursor: return False if among_var == 1: self.slice_del() else: self.slice_del() v_1 = self.limit - self.cursor try: if not self.__r_palatalise_i(): self.cursor = self.limit - v_1 raise lab0() except lab0: pass return True def __r_case_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(CzechStemmer.a_6) 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() elif among_var == 2: self.slice_del() v_3 = self.limit - self.cursor try: if not self.__r_palatalise_e(): self.cursor = self.limit - v_3 raise lab0() except lab0: pass elif among_var == 3: among_var = self.find_among_b(CzechStemmer.a_3) self.slice_from(CzechStemmer.as_3[among_var - 1]) elif among_var == 4: v_4 = self.limit - self.cursor if not self.out_grouping_b(CzechStemmer.g_v): return False self.cursor = self.limit - v_4 try: if not self.eq_s_b("tř"): raise lab0() return False except lab0: pass self.slice_from("b") elif among_var == 5: v_5 = self.limit - self.cursor if not self.out_grouping_b(CzechStemmer.g_v): return False self.cursor = self.limit - v_5 self.slice_del() self.insert(self.cursor, self.cursor, "c") v_6 = self.limit - self.cursor try: if not self.__r_palatalise_e(): self.cursor = self.limit - v_6 raise lab0() except lab0: pass elif among_var == 6: v_7 = self.limit - self.cursor if not self.out_grouping_b(CzechStemmer.g_v): return False self.cursor = self.limit - v_7 v_8 = self.limit - self.cursor try: if self.find_among_b(CzechStemmer.a_4) == 0: raise lab0() return False except lab0: pass self.cursor = self.limit - v_8 self.slice_from("k") elif among_var == 7: if self.cursor <= self.limit_backward or self.current[self.cursor - 1] != "n": return False self.cursor -= 1 self.bra = self.cursor self.slice_from("ňk") elif among_var == 8: v_9 = self.limit - self.cursor if not self.in_grouping_b(CzechStemmer.g_env_ending): return False self.cursor = self.limit - v_9 self.slice_from("n") elif among_var == 9: if self.find_among_b(CzechStemmer.a_5) == 0: return False self.slice_from("t") elif among_var == 10: if not self.in_grouping_b(CzechStemmer.g_ev_ending): return False self.slice_from("v") elif among_var == 11: self.slice_from("t") else: self.slice_del() v_10 = self.limit - self.cursor try: if not self.__r_palatalise_i(): self.cursor = self.limit - v_10 raise lab0() except lab0: pass 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_case_suffix() self.cursor = self.limit - v_1 v_2 = self.limit - self.cursor self.__r_possessive_suffix() self.cursor = self.limit - v_2 self.cursor = self.limit_backward return True a_0 = [ Among("c", -1, 1), Among("nc", 0, -1), Among("ínc", 1, 2), Among("avc", 0, -1), Among("ovc", 0, -1) ] as_0 = ("k", "ínk") a_1 = [ Among("c", -1, 1), Among("nc", 0, -1), Among("ínc", 1, 2), Among("avc", 0, -1), Among("ovc", 0, -1), Among("čt", -1, 3), Among("št", -1, 4), Among("dešt", 6, -1), Among("lešt", 6, -1), Among("išt", 6, -1), Among("poušt", 6, -1), Among("ášt", 6, -1), Among("íšt", 6, -1) ] as_1 = ("k", "ínk", "ck", "sk") a_2 = [ Among("in", -1, 2), Among("ov", -1, 1), Among("ův", -1, 1) ] a_3 = [ Among("", -1, 2), Among("l", 0, 1), Among("tl", 1, 2), Among("s", 0, 1), Among("es", 3, 2), Among("č", 0, 1), Among("eč", 5, 2), Among("ř", 0, 1), Among("ž", 0, 1) ] as_3 = ("", "et") a_4 = [ Among("obl", -1, -1), Among("sn", -1, -1), Among("dot", -1, -1) ] a_5 = [ Among("uc", -1, -1), Among("h", -1, -1), Among("ok", -1, -1), Among("kar", -1, -1), Among("č", -1, -1) ] a_6 = [ Among("a", -1, 1), Among("ama", 0, 1), Among("ata", 0, 1), Among("eb", -1, 4), Among("ec", -1, 5), Among("e", -1, 2), Among("ete", 5, 3), Among("ěte", 5, 1), Among("ech", -1, 2), Among("atech", 8, 1), Among("ách", -1, 1), Among("ích", -1, 12), Among("ých", -1, 1), Among("i", -1, 12), Among("mi", 13, 1), Among("ami", 14, 1), Among("emi", 14, 2), Among("ími", 14, 12), Among("ými", 14, 1), Among("ěmi", 14, 1), Among("ťmi", 14, 11), Among("eti", 13, 3), Among("ěti", 13, 1), Among("ovi", 13, 1), Among("ek", -1, 6), Among("ěk", -1, 7), Among("em", -1, 2), Among("etem", 26, 3), Among("ětem", 26, 1), Among("ám", -1, 1), Among("ém", -1, 1), Among("ím", -1, 12), Among("ým", -1, 1), Among("ěm", -1, 1), Among("ům", -1, 1), Among("atům", 34, 1), Among("o", -1, 1), Among("ého", 36, 1), Among("ího", 36, 12), Among("us", -1, 1), Among("at", -1, 1), Among("et", -1, 9), Among("u", -1, 1), Among("ému", 42, 1), Among("ímu", 42, 12), Among("ou", 42, 1), Among("ev", -1, 10), Among("y", -1, 1), Among("aty", 47, 1), Among("á", -1, 1), Among("é", -1, 1), Among("ové", 50, 1), Among("í", -1, 12), Among("ý", -1, 1), Among("ě", -1, 1), Among("eň", -1, 8), Among("ť", -1, 11), Among("ů", -1, 1) ] class lab0(BaseException): pass class lab1(BaseException): pass