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✏️ Editing: russian_stemmer.py

# Generated by Snowball 2.2.0 - https://snowballstem.org/

from .basestemmer import BaseStemmer
from .among import Among

class RussianStemmer(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"\u0432", -1, 1),
        Among(u"\u0438\u0432", 0, 2),
        Among(u"\u044B\u0432", 0, 2),
        Among(u"\u0432\u0448\u0438", -1, 1),
        Among(u"\u0438\u0432\u0448\u0438", 3, 2),
        Among(u"\u044B\u0432\u0448\u0438", 3, 2),
        Among(u"\u0432\u0448\u0438\u0441\u044C", -1, 1),
        Among(u"\u0438\u0432\u0448\u0438\u0441\u044C", 6, 2),
        Among(u"\u044B\u0432\u0448\u0438\u0441\u044C", 6, 2)
    ]

a_1 = [
        Among(u"\u0435\u0435", -1, 1),
        Among(u"\u0438\u0435", -1, 1),
        Among(u"\u043E\u0435", -1, 1),
        Among(u"\u044B\u0435", -1, 1),
        Among(u"\u0438\u043C\u0438", -1, 1),
        Among(u"\u044B\u043C\u0438", -1, 1),
        Among(u"\u0435\u0439", -1, 1),
        Among(u"\u0438\u0439", -1, 1),
        Among(u"\u043E\u0439", -1, 1),
        Among(u"\u044B\u0439", -1, 1),
        Among(u"\u0435\u043C", -1, 1),
        Among(u"\u0438\u043C", -1, 1),
        Among(u"\u043E\u043C", -1, 1),
        Among(u"\u044B\u043C", -1, 1),
        Among(u"\u0435\u0433\u043E", -1, 1),
        Among(u"\u043E\u0433\u043E", -1, 1),
        Among(u"\u0435\u043C\u0443", -1, 1),
        Among(u"\u043E\u043C\u0443", -1, 1),
        Among(u"\u0438\u0445", -1, 1),
        Among(u"\u044B\u0445", -1, 1),
        Among(u"\u0435\u044E", -1, 1),
        Among(u"\u043E\u044E", -1, 1),
        Among(u"\u0443\u044E", -1, 1),
        Among(u"\u044E\u044E", -1, 1),
        Among(u"\u0430\u044F", -1, 1),
        Among(u"\u044F\u044F", -1, 1)
    ]

a_2 = [
        Among(u"\u0435\u043C", -1, 1),
        Among(u"\u043D\u043D", -1, 1),
        Among(u"\u0432\u0448", -1, 1),
        Among(u"\u0438\u0432\u0448", 2, 2),
        Among(u"\u044B\u0432\u0448", 2, 2),
        Among(u"\u0449", -1, 1),
        Among(u"\u044E\u0449", 5, 1),
        Among(u"\u0443\u044E\u0449", 6, 2)
    ]

a_3 = [
        Among(u"\u0441\u044C", -1, 1),
        Among(u"\u0441\u044F", -1, 1)
    ]

a_4 = [
        Among(u"\u043B\u0430", -1, 1),
        Among(u"\u0438\u043B\u0430", 0, 2),
        Among(u"\u044B\u043B\u0430", 0, 2),
        Among(u"\u043D\u0430", -1, 1),
        Among(u"\u0435\u043D\u0430", 3, 2),
        Among(u"\u0435\u0442\u0435", -1, 1),
        Among(u"\u0438\u0442\u0435", -1, 2),
        Among(u"\u0439\u0442\u0435", -1, 1),
        Among(u"\u0435\u0439\u0442\u0435", 7, 2),
        Among(u"\u0443\u0439\u0442\u0435", 7, 2),
        Among(u"\u043B\u0438", -1, 1),
        Among(u"\u0438\u043B\u0438", 10, 2),
        Among(u"\u044B\u043B\u0438", 10, 2),
        Among(u"\u0439", -1, 1),
        Among(u"\u0435\u0439", 13, 2),
        Among(u"\u0443\u0439", 13, 2),
        Among(u"\u043B", -1, 1),
        Among(u"\u0438\u043B", 16, 2),
        Among(u"\u044B\u043B", 16, 2),
        Among(u"\u0435\u043C", -1, 1),
        Among(u"\u0438\u043C", -1, 2),
        Among(u"\u044B\u043C", -1, 2),
        Among(u"\u043D", -1, 1),
        Among(u"\u0435\u043D", 22, 2),
        Among(u"\u043B\u043E", -1, 1),
        Among(u"\u0438\u043B\u043E", 24, 2),
        Among(u"\u044B\u043B\u043E", 24, 2),
        Among(u"\u043D\u043E", -1, 1),
        Among(u"\u0435\u043D\u043E", 27, 2),
        Among(u"\u043D\u043D\u043E", 27, 1),
        Among(u"\u0435\u0442", -1, 1),
        Among(u"\u0443\u0435\u0442", 30, 2),
        Among(u"\u0438\u0442", -1, 2),
        Among(u"\u044B\u0442", -1, 2),
        Among(u"\u044E\u0442", -1, 1),
        Among(u"\u0443\u044E\u0442", 34, 2),
        Among(u"\u044F\u0442", -1, 2),
        Among(u"\u043D\u044B", -1, 1),
        Among(u"\u0435\u043D\u044B", 37, 2),
        Among(u"\u0442\u044C", -1, 1),
        Among(u"\u0438\u0442\u044C", 39, 2),
        Among(u"\u044B\u0442\u044C", 39, 2),
        Among(u"\u0435\u0448\u044C", -1, 1),
        Among(u"\u0438\u0448\u044C", -1, 2),
        Among(u"\u044E", -1, 2),
        Among(u"\u0443\u044E", 44, 2)
    ]

a_5 = [
        Among(u"\u0430", -1, 1),
        Among(u"\u0435\u0432", -1, 1),
        Among(u"\u043E\u0432", -1, 1),
        Among(u"\u0435", -1, 1),
        Among(u"\u0438\u0435", 3, 1),
        Among(u"\u044C\u0435", 3, 1),
        Among(u"\u0438", -1, 1),
        Among(u"\u0435\u0438", 6, 1),
        Among(u"\u0438\u0438", 6, 1),
        Among(u"\u0430\u043C\u0438", 6, 1),
        Among(u"\u044F\u043C\u0438", 6, 1),
        Among(u"\u0438\u044F\u043C\u0438", 10, 1),
        Among(u"\u0439", -1, 1),
        Among(u"\u0435\u0439", 12, 1),
        Among(u"\u0438\u0435\u0439", 13, 1),
        Among(u"\u0438\u0439", 12, 1),
        Among(u"\u043E\u0439", 12, 1),
        Among(u"\u0430\u043C", -1, 1),
        Among(u"\u0435\u043C", -1, 1),
        Among(u"\u0438\u0435\u043C", 18, 1),
        Among(u"\u043E\u043C", -1, 1),
        Among(u"\u044F\u043C", -1, 1),
        Among(u"\u0438\u044F\u043C", 21, 1),
        Among(u"\u043E", -1, 1),
        Among(u"\u0443", -1, 1),
        Among(u"\u0430\u0445", -1, 1),
        Among(u"\u044F\u0445", -1, 1),
        Among(u"\u0438\u044F\u0445", 26, 1),
        Among(u"\u044B", -1, 1),
        Among(u"\u044C", -1, 1),
        Among(u"\u044E", -1, 1),
        Among(u"\u0438\u044E", 30, 1),
        Among(u"\u044C\u044E", 30, 1),
        Among(u"\u044F", -1, 1),
        Among(u"\u0438\u044F", 33, 1),
        Among(u"\u044C\u044F", 33, 1)
    ]

a_6 = [
        Among(u"\u043E\u0441\u0442", -1, 1),
        Among(u"\u043E\u0441\u0442\u044C", -1, 1)
    ]

a_7 = [
        Among(u"\u0435\u0439\u0448\u0435", -1, 1),
        Among(u"\u043D", -1, 2),
        Among(u"\u0435\u0439\u0448", -1, 1),
        Among(u"\u044C", -1, 3)
    ]

g_v = [33, 65, 8, 232]

I_p2 = 0
    I_pV = 0

def __r_mark_regions(self):
        self.I_pV = self.limit
        self.I_p2 = self.limit
        v_1 = self.cursor
        try:
            if not self.go_out_grouping(RussianStemmer.g_v, 1072, 1103):
                raise lab0()
            self.cursor += 1
            self.I_pV = self.cursor
            if not self.go_in_grouping(RussianStemmer.g_v, 1072, 1103):
                raise lab0()
            self.cursor += 1
            if not self.go_out_grouping(RussianStemmer.g_v, 1072, 1103):
                raise lab0()
            self.cursor += 1
            if not self.go_in_grouping(RussianStemmer.g_v, 1072, 1103):
                raise lab0()
            self.cursor += 1
            self.I_p2 = self.cursor
        except lab0: pass
        self.cursor = v_1
        return True

def __r_R2(self):
        if not self.I_p2 <= self.cursor:
            return False
        return True

def __r_perfective_gerund(self):
        self.ket = self.cursor
        among_var = self.find_among_b(RussianStemmer.a_0)
        if among_var == 0:
            return False
        self.bra = self.cursor
        if among_var == 1:
            try:
                v_1 = self.limit - self.cursor
                try:
                    if not self.eq_s_b(u"\u0430"):
                        raise lab1()
                    raise lab0()
                except lab1: pass
                self.cursor = self.limit - v_1
                if not self.eq_s_b(u"\u044F"):
                    return False
            except lab0: pass
            if not self.slice_del():
                return False

else:
            if not self.slice_del():
                return False

return True

def __r_adjective(self):
        self.ket = self.cursor
        if self.find_among_b(RussianStemmer.a_1) == 0:
            return False
        self.bra = self.cursor
        if not self.slice_del():
            return False

return True

def __r_adjectival(self):
        if not self.__r_adjective():
            return False
        v_1 = self.limit - self.cursor
        try:
            self.ket = self.cursor
            among_var = self.find_among_b(RussianStemmer.a_2)
            if among_var == 0:
                self.cursor = self.limit - v_1
                raise lab0()
            self.bra = self.cursor
            if among_var == 1:
                try:
                    v_2 = self.limit - self.cursor
                    try:
                        if not self.eq_s_b(u"\u0430"):
                            raise lab2()
                        raise lab1()
                    except lab2: pass
                    self.cursor = self.limit - v_2
                    if not self.eq_s_b(u"\u044F"):
                        self.cursor = self.limit - v_1
                        raise lab0()
                except lab1: pass
                if not self.slice_del():
                    return False

else:
                if not self.slice_del():
                    return False

except lab0: pass
        return True

def __r_reflexive(self):
        self.ket = self.cursor
        if self.find_among_b(RussianStemmer.a_3) == 0:
            return False
        self.bra = self.cursor
        if not self.slice_del():
            return False

return True

def __r_verb(self):
        self.ket = self.cursor
        among_var = self.find_among_b(RussianStemmer.a_4)
        if among_var == 0:
            return False
        self.bra = self.cursor
        if among_var == 1:
            try:
                v_1 = self.limit - self.cursor
                try:
                    if not self.eq_s_b(u"\u0430"):
                        raise lab1()
                    raise lab0()
                except lab1: pass
                self.cursor = self.limit - v_1
                if not self.eq_s_b(u"\u044F"):
                    return False
            except lab0: pass
            if not self.slice_del():
                return False

else:
            if not self.slice_del():
                return False

return True

def __r_noun(self):
        self.ket = self.cursor
        if self.find_among_b(RussianStemmer.a_5) == 0:
            return False
        self.bra = self.cursor
        if not self.slice_del():
            return False

return True

def __r_derivational(self):
        self.ket = self.cursor
        if self.find_among_b(RussianStemmer.a_6) == 0:
            return False
        self.bra = self.cursor
        if not self.__r_R2():
            return False
        if not self.slice_del():
            return False

return True

def __r_tidy_up(self):
        self.ket = self.cursor
        among_var = self.find_among_b(RussianStemmer.a_7)
        if among_var == 0:
            return False
        self.bra = self.cursor
        if among_var == 1:
            if not self.slice_del():
                return False

self.ket = self.cursor
            if not self.eq_s_b(u"\u043D"):
                return False
            self.bra = self.cursor
            if not self.eq_s_b(u"\u043D"):
                return False
            if not self.slice_del():
                return False

elif among_var == 2:
            if not self.eq_s_b(u"\u043D"):
                return False
            if not self.slice_del():
                return False

else:
            if not self.slice_del():
                return False

return True

def _stem(self):
        v_1 = self.cursor
        try:
            while True:
                v_2 = self.cursor
                try:
                    try:
                        while True:
                            v_3 = self.cursor
                            try:
                                self.bra = self.cursor
                                if not self.eq_s(u"\u0451"):
                                    raise lab3()
                                self.ket = self.cursor
                                self.cursor = v_3
                                raise lab2()
                            except lab3: pass
                            self.cursor = v_3
                            if self.cursor >= self.limit:
                                raise lab1()
                            self.cursor += 1
                    except lab2: pass
                    if not self.slice_from(u"\u0435"):
                        return False
                    continue
                except lab1: pass
                self.cursor = v_2
                break
        except lab0: pass
        self.cursor = v_1
        self.__r_mark_regions()
        self.limit_backward = self.cursor
        self.cursor = self.limit
        if self.cursor < self.I_pV:
            return False
        v_6 = self.limit_backward
        self.limit_backward = self.I_pV
        v_7 = self.limit - self.cursor
        try:
            try:
                v_8 = self.limit - self.cursor
                try:
                    if not self.__r_perfective_gerund():
                        raise lab6()
                    raise lab5()
                except lab6: pass
                self.cursor = self.limit - v_8
                v_9 = self.limit - self.cursor
                try:
                    if not self.__r_reflexive():
                        self.cursor = self.limit - v_9
                        raise lab7()
                except lab7: pass
                try:
                    v_10 = self.limit - self.cursor
                    try:
                        if not self.__r_adjectival():
                            raise lab9()
                        raise lab8()
                    except lab9: pass
                    self.cursor = self.limit - v_10
                    try:
                        if not self.__r_verb():
                            raise lab10()
                        raise lab8()
                    except lab10: pass
                    self.cursor = self.limit - v_10
                    if not self.__r_noun():
                        raise lab4()
                except lab8: pass
            except lab5: pass
        except lab4: pass
        self.cursor = self.limit - v_7
        v_11 = self.limit - self.cursor
        try:
            self.ket = self.cursor
            if not self.eq_s_b(u"\u0438"):
                self.cursor = self.limit - v_11
                raise lab11()
            self.bra = self.cursor
            if not self.slice_del():
                return False

except lab11: pass
        v_12 = self.limit - self.cursor
        self.__r_derivational()
        self.cursor = self.limit - v_12
        v_13 = self.limit - self.cursor
        self.__r_tidy_up()
        self.cursor = self.limit - v_13
        self.limit_backward = v_6
        self.cursor = self.limit_backward
        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

class lab6(BaseException): pass

class lab7(BaseException): pass

class lab8(BaseException): pass

class lab9(BaseException): pass

class lab10(BaseException): pass

class lab11(BaseException): pass

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