/* This file was generated automatically by the Snowball to ANSI C compiler */

#include "header.h"

#ifdef __cplusplus
extern "C" {
#endif
extern int porter_UTF_8_stem(struct SN_env *z);
#ifdef __cplusplus
}
#endif
static int r_Step_5b(struct SN_env *z);
static int r_Step_5a(struct SN_env *z);
static int r_Step_4(struct SN_env *z);
static int r_Step_3(struct SN_env *z);
static int r_Step_2(struct SN_env *z);
static int r_Step_1c(struct SN_env *z);
static int r_Step_1b(struct SN_env *z);
static int r_Step_1a(struct SN_env *z);
static int r_R2(struct SN_env *z);
static int r_R1(struct SN_env *z);
static int r_shortv(struct SN_env *z);
#ifdef __cplusplus
extern "C" {
#endif

extern struct SN_env *porter_UTF_8_create_env(void);
extern void porter_UTF_8_close_env(struct SN_env *z);

#ifdef __cplusplus
}
#endif
static const symbol s_0_0[1] = {'s'};
static const symbol s_0_1[3] = {'i', 'e', 's'};
static const symbol s_0_2[4] = {'s', 's', 'e', 's'};
static const symbol s_0_3[2] = {'s', 's'};

static const struct among a_0[4] = {
    /*  0 */ {1, s_0_0, -1, 3, 0},
    /*  1 */ {3, s_0_1, 0, 2, 0},
    /*  2 */ {4, s_0_2, 0, 1, 0},
    /*  3 */ {2, s_0_3, 0, -1, 0}};

static const symbol s_1_1[2] = {'b', 'b'};
static const symbol s_1_2[2] = {'d', 'd'};
static const symbol s_1_3[2] = {'f', 'f'};
static const symbol s_1_4[2] = {'g', 'g'};
static const symbol s_1_5[2] = {'b', 'l'};
static const symbol s_1_6[2] = {'m', 'm'};
static const symbol s_1_7[2] = {'n', 'n'};
static const symbol s_1_8[2] = {'p', 'p'};
static const symbol s_1_9[2] = {'r', 'r'};
static const symbol s_1_10[2] = {'a', 't'};
static const symbol s_1_11[2] = {'t', 't'};
static const symbol s_1_12[2] = {'i', 'z'};

static const struct among a_1[13] = {
    /*  0 */ {0, 0, -1, 3, 0},
    /*  1 */ {2, s_1_1, 0, 2, 0},
    /*  2 */ {2, s_1_2, 0, 2, 0},
    /*  3 */ {2, s_1_3, 0, 2, 0},
    /*  4 */ {2, s_1_4, 0, 2, 0},
    /*  5 */ {2, s_1_5, 0, 1, 0},
    /*  6 */ {2, s_1_6, 0, 2, 0},
    /*  7 */ {2, s_1_7, 0, 2, 0},
    /*  8 */ {2, s_1_8, 0, 2, 0},
    /*  9 */ {2, s_1_9, 0, 2, 0},
    /* 10 */ {2, s_1_10, 0, 1, 0},
    /* 11 */ {2, s_1_11, 0, 2, 0},
    /* 12 */ {2, s_1_12, 0, 1, 0}};

static const symbol s_2_0[2] = {'e', 'd'};
static const symbol s_2_1[3] = {'e', 'e', 'd'};
static const symbol s_2_2[3] = {'i', 'n', 'g'};

static const struct among a_2[3] = {
    /*  0 */ {2, s_2_0, -1, 2, 0},
    /*  1 */ {3, s_2_1, 0, 1, 0},
    /*  2 */ {3, s_2_2, -1, 2, 0}};

static const symbol s_3_0[4] = {'a', 'n', 'c', 'i'};
static const symbol s_3_1[4] = {'e', 'n', 'c', 'i'};
static const symbol s_3_2[4] = {'a', 'b', 'l', 'i'};
static const symbol s_3_3[3] = {'e', 'l', 'i'};
static const symbol s_3_4[4] = {'a', 'l', 'l', 'i'};
static const symbol s_3_5[5] = {'o', 'u', 's', 'l', 'i'};
static const symbol s_3_6[5] = {'e', 'n', 't', 'l', 'i'};
static const symbol s_3_7[5] = {'a', 'l', 'i', 't', 'i'};
static const symbol s_3_8[6] = {'b', 'i', 'l', 'i', 't', 'i'};
static const symbol s_3_9[5] = {'i', 'v', 'i', 't', 'i'};
static const symbol s_3_10[6] = {'t', 'i', 'o', 'n', 'a', 'l'};
static const symbol s_3_11[7] = {'a', 't', 'i', 'o', 'n', 'a', 'l'};
static const symbol s_3_12[5] = {'a', 'l', 'i', 's', 'm'};
static const symbol s_3_13[5] = {'a', 't', 'i', 'o', 'n'};
static const symbol s_3_14[7] = {'i', 'z', 'a', 't', 'i', 'o', 'n'};
static const symbol s_3_15[4] = {'i', 'z', 'e', 'r'};
static const symbol s_3_16[4] = {'a', 't', 'o', 'r'};
static const symbol s_3_17[7] = {'i', 'v', 'e', 'n', 'e', 's', 's'};
static const symbol s_3_18[7] = {'f', 'u', 'l', 'n', 'e', 's', 's'};
static const symbol s_3_19[7] = {'o', 'u', 's', 'n', 'e', 's', 's'};

static const struct among a_3[20] = {
    /*  0 */ {4, s_3_0, -1, 3, 0},
    /*  1 */ {4, s_3_1, -1, 2, 0},
    /*  2 */ {4, s_3_2, -1, 4, 0},
    /*  3 */ {3, s_3_3, -1, 6, 0},
    /*  4 */ {4, s_3_4, -1, 9, 0},
    /*  5 */ {5, s_3_5, -1, 12, 0},
    /*  6 */ {5, s_3_6, -1, 5, 0},
    /*  7 */ {5, s_3_7, -1, 10, 0},
    /*  8 */ {6, s_3_8, -1, 14, 0},
    /*  9 */ {5, s_3_9, -1, 13, 0},
    /* 10 */ {6, s_3_10, -1, 1, 0},
    /* 11 */ {7, s_3_11, 10, 8, 0},
    /* 12 */ {5, s_3_12, -1, 10, 0},
    /* 13 */ {5, s_3_13, -1, 8, 0},
    /* 14 */ {7, s_3_14, 13, 7, 0},
    /* 15 */ {4, s_3_15, -1, 7, 0},
    /* 16 */ {4, s_3_16, -1, 8, 0},
    /* 17 */ {7, s_3_17, -1, 13, 0},
    /* 18 */ {7, s_3_18, -1, 11, 0},
    /* 19 */ {7, s_3_19, -1, 12, 0}};

static const symbol s_4_0[5] = {'i', 'c', 'a', 't', 'e'};
static const symbol s_4_1[5] = {'a', 't', 'i', 'v', 'e'};
static const symbol s_4_2[5] = {'a', 'l', 'i', 'z', 'e'};
static const symbol s_4_3[5] = {'i', 'c', 'i', 't', 'i'};
static const symbol s_4_4[4] = {'i', 'c', 'a', 'l'};
static const symbol s_4_5[3] = {'f', 'u', 'l'};
static const symbol s_4_6[4] = {'n', 'e', 's', 's'};

static const struct among a_4[7] = {
    /*  0 */ {5, s_4_0, -1, 2, 0},
    /*  1 */ {5, s_4_1, -1, 3, 0},
    /*  2 */ {5, s_4_2, -1, 1, 0},
    /*  3 */ {5, s_4_3, -1, 2, 0},
    /*  4 */ {4, s_4_4, -1, 2, 0},
    /*  5 */ {3, s_4_5, -1, 3, 0},
    /*  6 */ {4, s_4_6, -1, 3, 0}};

static const symbol s_5_0[2] = {'i', 'c'};
static const symbol s_5_1[4] = {'a', 'n', 'c', 'e'};
static const symbol s_5_2[4] = {'e', 'n', 'c', 'e'};
static const symbol s_5_3[4] = {'a', 'b', 'l', 'e'};
static const symbol s_5_4[4] = {'i', 'b', 'l', 'e'};
static const symbol s_5_5[3] = {'a', 't', 'e'};
static const symbol s_5_6[3] = {'i', 'v', 'e'};
static const symbol s_5_7[3] = {'i', 'z', 'e'};
static const symbol s_5_8[3] = {'i', 't', 'i'};
static const symbol s_5_9[2] = {'a', 'l'};
static const symbol s_5_10[3] = {'i', 's', 'm'};
static const symbol s_5_11[3] = {'i', 'o', 'n'};
static const symbol s_5_12[2] = {'e', 'r'};
static const symbol s_5_13[3] = {'o', 'u', 's'};
static const symbol s_5_14[3] = {'a', 'n', 't'};
static const symbol s_5_15[3] = {'e', 'n', 't'};
static const symbol s_5_16[4] = {'m', 'e', 'n', 't'};
static const symbol s_5_17[5] = {'e', 'm', 'e', 'n', 't'};
static const symbol s_5_18[2] = {'o', 'u'};

static const struct among a_5[19] = {
    /*  0 */ {2, s_5_0, -1, 1, 0},
    /*  1 */ {4, s_5_1, -1, 1, 0},
    /*  2 */ {4, s_5_2, -1, 1, 0},
    /*  3 */ {4, s_5_3, -1, 1, 0},
    /*  4 */ {4, s_5_4, -1, 1, 0},
    /*  5 */ {3, s_5_5, -1, 1, 0},
    /*  6 */ {3, s_5_6, -1, 1, 0},
    /*  7 */ {3, s_5_7, -1, 1, 0},
    /*  8 */ {3, s_5_8, -1, 1, 0},
    /*  9 */ {2, s_5_9, -1, 1, 0},
    /* 10 */ {3, s_5_10, -1, 1, 0},
    /* 11 */ {3, s_5_11, -1, 2, 0},
    /* 12 */ {2, s_5_12, -1, 1, 0},
    /* 13 */ {3, s_5_13, -1, 1, 0},
    /* 14 */ {3, s_5_14, -1, 1, 0},
    /* 15 */ {3, s_5_15, -1, 1, 0},
    /* 16 */ {4, s_5_16, 15, 1, 0},
    /* 17 */ {5, s_5_17, 16, 1, 0},
    /* 18 */ {2, s_5_18, -1, 1, 0}};

static const unsigned char g_v[] = {17, 65, 16, 1};

static const unsigned char g_v_WXY[] = {1, 17, 65, 208, 1};

static const symbol s_0[] = {'s', 's'};
static const symbol s_1[] = {'i'};
static const symbol s_2[] = {'e', 'e'};
static const symbol s_3[] = {'e'};
static const symbol s_4[] = {'e'};
static const symbol s_5[] = {'y'};
static const symbol s_6[] = {'Y'};
static const symbol s_7[] = {'i'};
static const symbol s_8[] = {'t', 'i', 'o', 'n'};
static const symbol s_9[] = {'e', 'n', 'c', 'e'};
static const symbol s_10[] = {'a', 'n', 'c', 'e'};
static const symbol s_11[] = {'a', 'b', 'l', 'e'};
static const symbol s_12[] = {'e', 'n', 't'};
static const symbol s_13[] = {'e'};
static const symbol s_14[] = {'i', 'z', 'e'};
static const symbol s_15[] = {'a', 't', 'e'};
static const symbol s_16[] = {'a', 'l'};
static const symbol s_17[] = {'a', 'l'};
static const symbol s_18[] = {'f', 'u', 'l'};
static const symbol s_19[] = {'o', 'u', 's'};
static const symbol s_20[] = {'i', 'v', 'e'};
static const symbol s_21[] = {'b', 'l', 'e'};
static const symbol s_22[] = {'a', 'l'};
static const symbol s_23[] = {'i', 'c'};
static const symbol s_24[] = {'s'};
static const symbol s_25[] = {'t'};
static const symbol s_26[] = {'e'};
static const symbol s_27[] = {'l'};
static const symbol s_28[] = {'l'};
static const symbol s_29[] = {'y'};
static const symbol s_30[] = {'Y'};
static const symbol s_31[] = {'y'};
static const symbol s_32[] = {'Y'};
static const symbol s_33[] = {'Y'};
static const symbol s_34[] = {'y'};

static int r_shortv(struct SN_env *z) {
    if (out_grouping_b_U(z, g_v_WXY, 89, 121, 0))
        return 0;
    if (in_grouping_b_U(z, g_v, 97, 121, 0))
        return 0;
    if (out_grouping_b_U(z, g_v, 97, 121, 0))
        return 0;
    return 1;
}

static int r_R1(struct SN_env *z) {
    if (!(z->I[0] <= z->c))
        return 0;
    return 1;
}

static int r_R2(struct SN_env *z) {
    if (!(z->I[1] <= z->c))
        return 0;
    return 1;
}

static int r_Step_1a(struct SN_env *z) {
    int among_var;
    z->ket = z->c; /* [, line 25 */
    if (z->c <= z->lb || z->p[z->c - 1] != 115)
        return 0;
    among_var = find_among_b(z, a_0, 4); /* substring, line 25 */
    if (!(among_var))
        return 0;
    z->bra = z->c; /* ], line 25 */
    switch (among_var) {
        case 0:
            return 0;
        case 1: {
            int ret = slice_from_s(z, 2, s_0); /* <-, line 26 */
            if (ret < 0)
                return ret;
        } break;
        case 2: {
            int ret = slice_from_s(z, 1, s_1); /* <-, line 27 */
            if (ret < 0)
                return ret;
        } break;
        case 3: {
            int ret = slice_del(z); /* delete, line 29 */
            if (ret < 0)
                return ret;
        } break;
    }
    return 1;
}

static int r_Step_1b(struct SN_env *z) {
    int among_var;
    z->ket = z->c; /* [, line 34 */
    if (z->c - 1 <= z->lb || (z->p[z->c - 1] != 100 && z->p[z->c - 1] != 103))
        return 0;
    among_var = find_among_b(z, a_2, 3); /* substring, line 34 */
    if (!(among_var))
        return 0;
    z->bra = z->c; /* ], line 34 */
    switch (among_var) {
        case 0:
            return 0;
        case 1: {
            int ret = r_R1(z);
            if (ret == 0)
                return 0; /* call R1, line 35 */
            if (ret < 0)
                return ret;
        }
            {
                int ret = slice_from_s(z, 2, s_2); /* <-, line 35 */
                if (ret < 0)
                    return ret;
            }
            break;
        case 2: {
            int m_test = z->l - z->c; /* test, line 38 */
            { /* gopast */            /* grouping v, line 38 */
                int ret = out_grouping_b_U(z, g_v, 97, 121, 1);
                if (ret < 0)
                    return 0;
                z->c -= ret;
            }
            z->c = z->l - m_test;
        }
            {
                int ret = slice_del(z); /* delete, line 38 */
                if (ret < 0)
                    return ret;
            }
            {
                int m_test = z->l - z->c; /* test, line 39 */
                if (z->c - 1 <= z->lb || z->p[z->c - 1] >> 5 != 3 || !((68514004 >> (z->p[z->c - 1] & 0x1f)) & 1))
                    among_var = 3;
                else
                    among_var = find_among_b(z, a_1, 13); /* substring, line 39 */
                if (!(among_var))
                    return 0;
                z->c = z->l - m_test;
            }
            switch (among_var) {
                case 0:
                    return 0;
                case 1: {
                    int c_keep = z->c;
                    int ret = insert_s(z, z->c, z->c, 1, s_3); /* <+, line 41 */
                    z->c = c_keep;
                    if (ret < 0)
                        return ret;
                } break;
                case 2:
                    z->ket = z->c; /* [, line 44 */
                    {
                        int ret = skip_utf8(z->p, z->c, z->lb, 0, -1);
                        if (ret < 0)
                            return 0;
                        z->c = ret; /* next, line 44 */
                    }
                    z->bra = z->c; /* ], line 44 */
                    {
                        int ret = slice_del(z); /* delete, line 44 */
                        if (ret < 0)
                            return ret;
                    }
                    break;
                case 3:
                    if (z->c != z->I[0])
                        return 0; /* atmark, line 45 */
                    {
                        int m_test = z->l - z->c; /* test, line 45 */
                        {
                            int ret = r_shortv(z);
                            if (ret == 0)
                                return 0; /* call shortv, line 45 */
                            if (ret < 0)
                                return ret;
                        }
                        z->c = z->l - m_test;
                    }
                    {
                        int c_keep = z->c;
                        int ret = insert_s(z, z->c, z->c, 1, s_4); /* <+, line 45 */
                        z->c = c_keep;
                        if (ret < 0)
                            return ret;
                    }
                    break;
            }
            break;
    }
    return 1;
}

static int r_Step_1c(struct SN_env *z) {
    z->ket = z->c; /* [, line 52 */
    {
        int m1 = z->l - z->c;
        (void)m1; /* or, line 52 */
        if (!(eq_s_b(z, 1, s_5)))
            goto lab1;
        goto lab0;
    lab1:
        z->c = z->l - m1;
        if (!(eq_s_b(z, 1, s_6)))
            return 0;
    }
lab0:
    z->bra = z->c; /* ], line 52 */
    { /* gopast */ /* grouping v, line 53 */
        int ret = out_grouping_b_U(z, g_v, 97, 121, 1);
        if (ret < 0)
            return 0;
        z->c -= ret;
    }
    {
        int ret = slice_from_s(z, 1, s_7); /* <-, line 54 */
        if (ret < 0)
            return ret;
    }
    return 1;
}

static int r_Step_2(struct SN_env *z) {
    int among_var;
    z->ket = z->c; /* [, line 58 */
    if (z->c - 2 <= z->lb || z->p[z->c - 1] >> 5 != 3 || !((815616 >> (z->p[z->c - 1] & 0x1f)) & 1))
        return 0;
    among_var = find_among_b(z, a_3, 20); /* substring, line 58 */
    if (!(among_var))
        return 0;
    z->bra = z->c; /* ], line 58 */
    {
        int ret = r_R1(z);
        if (ret == 0)
            return 0; /* call R1, line 58 */
        if (ret < 0)
            return ret;
    }
    switch (among_var) {
        case 0:
            return 0;
        case 1: {
            int ret = slice_from_s(z, 4, s_8); /* <-, line 59 */
            if (ret < 0)
                return ret;
        } break;
        case 2: {
            int ret = slice_from_s(z, 4, s_9); /* <-, line 60 */
            if (ret < 0)
                return ret;
        } break;
        case 3: {
            int ret = slice_from_s(z, 4, s_10); /* <-, line 61 */
            if (ret < 0)
                return ret;
        } break;
        case 4: {
            int ret = slice_from_s(z, 4, s_11); /* <-, line 62 */
            if (ret < 0)
                return ret;
        } break;
        case 5: {
            int ret = slice_from_s(z, 3, s_12); /* <-, line 63 */
            if (ret < 0)
                return ret;
        } break;
        case 6: {
            int ret = slice_from_s(z, 1, s_13); /* <-, line 64 */
            if (ret < 0)
                return ret;
        } break;
        case 7: {
            int ret = slice_from_s(z, 3, s_14); /* <-, line 66 */
            if (ret < 0)
                return ret;
        } break;
        case 8: {
            int ret = slice_from_s(z, 3, s_15); /* <-, line 68 */
            if (ret < 0)
                return ret;
        } break;
        case 9: {
            int ret = slice_from_s(z, 2, s_16); /* <-, line 69 */
            if (ret < 0)
                return ret;
        } break;
        case 10: {
            int ret = slice_from_s(z, 2, s_17); /* <-, line 71 */
            if (ret < 0)
                return ret;
        } break;
        case 11: {
            int ret = slice_from_s(z, 3, s_18); /* <-, line 72 */
            if (ret < 0)
                return ret;
        } break;
        case 12: {
            int ret = slice_from_s(z, 3, s_19); /* <-, line 74 */
            if (ret < 0)
                return ret;
        } break;
        case 13: {
            int ret = slice_from_s(z, 3, s_20); /* <-, line 76 */
            if (ret < 0)
                return ret;
        } break;
        case 14: {
            int ret = slice_from_s(z, 3, s_21); /* <-, line 77 */
            if (ret < 0)
                return ret;
        } break;
    }
    return 1;
}

static int r_Step_3(struct SN_env *z) {
    int among_var;
    z->ket = z->c; /* [, line 82 */
    if (z->c - 2 <= z->lb || z->p[z->c - 1] >> 5 != 3 || !((528928 >> (z->p[z->c - 1] & 0x1f)) & 1))
        return 0;
    among_var = find_among_b(z, a_4, 7); /* substring, line 82 */
    if (!(among_var))
        return 0;
    z->bra = z->c; /* ], line 82 */
    {
        int ret = r_R1(z);
        if (ret == 0)
            return 0; /* call R1, line 82 */
        if (ret < 0)
            return ret;
    }
    switch (among_var) {
        case 0:
            return 0;
        case 1: {
            int ret = slice_from_s(z, 2, s_22); /* <-, line 83 */
            if (ret < 0)
                return ret;
        } break;
        case 2: {
            int ret = slice_from_s(z, 2, s_23); /* <-, line 85 */
            if (ret < 0)
                return ret;
        } break;
        case 3: {
            int ret = slice_del(z); /* delete, line 87 */
            if (ret < 0)
                return ret;
        } break;
    }
    return 1;
}

static int r_Step_4(struct SN_env *z) {
    int among_var;
    z->ket = z->c; /* [, line 92 */
    if (z->c - 1 <= z->lb || z->p[z->c - 1] >> 5 != 3 || !((3961384 >> (z->p[z->c - 1] & 0x1f)) & 1))
        return 0;
    among_var = find_among_b(z, a_5, 19); /* substring, line 92 */
    if (!(among_var))
        return 0;
    z->bra = z->c; /* ], line 92 */
    {
        int ret = r_R2(z);
        if (ret == 0)
            return 0; /* call R2, line 92 */
        if (ret < 0)
            return ret;
    }
    switch (among_var) {
        case 0:
            return 0;
        case 1: {
            int ret = slice_del(z); /* delete, line 95 */
            if (ret < 0)
                return ret;
        } break;
        case 2: {
            int m1 = z->l - z->c;
            (void)m1; /* or, line 96 */
            if (!(eq_s_b(z, 1, s_24)))
                goto lab1;
            goto lab0;
        lab1:
            z->c = z->l - m1;
            if (!(eq_s_b(z, 1, s_25)))
                return 0;
        }
        lab0: {
            int ret = slice_del(z); /* delete, line 96 */
            if (ret < 0)
                return ret;
        } break;
    }
    return 1;
}

static int r_Step_5a(struct SN_env *z) {
    z->ket = z->c; /* [, line 101 */
    if (!(eq_s_b(z, 1, s_26)))
        return 0;
    z->bra = z->c; /* ], line 101 */
    {
        int m1 = z->l - z->c;
        (void)m1; /* or, line 102 */
        {
            int ret = r_R2(z);
            if (ret == 0)
                goto lab1; /* call R2, line 102 */
            if (ret < 0)
                return ret;
        }
        goto lab0;
    lab1:
        z->c = z->l - m1;
        {
            int ret = r_R1(z);
            if (ret == 0)
                return 0; /* call R1, line 102 */
            if (ret < 0)
                return ret;
        }
        {
            int m2 = z->l - z->c;
            (void)m2; /* not, line 102 */
            {
                int ret = r_shortv(z);
                if (ret == 0)
                    goto lab2; /* call shortv, line 102 */
                if (ret < 0)
                    return ret;
            }
            return 0;
        lab2:
            z->c = z->l - m2;
        }
    }
lab0: {
    int ret = slice_del(z); /* delete, line 103 */
    if (ret < 0)
        return ret;
}
    return 1;
}

static int r_Step_5b(struct SN_env *z) {
    z->ket = z->c; /* [, line 107 */
    if (!(eq_s_b(z, 1, s_27)))
        return 0;
    z->bra = z->c; /* ], line 107 */
    {
        int ret = r_R2(z);
        if (ret == 0)
            return 0; /* call R2, line 108 */
        if (ret < 0)
            return ret;
    }
    if (!(eq_s_b(z, 1, s_28)))
        return 0;
    {
        int ret = slice_del(z); /* delete, line 109 */
        if (ret < 0)
            return ret;
    }
    return 1;
}

extern int porter_UTF_8_stem(struct SN_env *z) {
    z->B[0] = 0; /* unset Y_found, line 115 */
    {
        int c1 = z->c; /* do, line 116 */
        z->bra = z->c; /* [, line 116 */
        if (!(eq_s(z, 1, s_29)))
            goto lab0;
        z->ket = z->c; /* ], line 116 */
        {
            int ret = slice_from_s(z, 1, s_30); /* <-, line 116 */
            if (ret < 0)
                return ret;
        }
        z->B[0] = 1; /* set Y_found, line 116 */
    lab0:
        z->c = c1;
    }
    {
        int c2 = z->c; /* do, line 117 */
        while (1) {    /* repeat, line 117 */
            int c3 = z->c;
            while (1) { /* goto, line 117 */
                int c4 = z->c;
                if (in_grouping_U(z, g_v, 97, 121, 0))
                    goto lab3;
                z->bra = z->c; /* [, line 117 */
                if (!(eq_s(z, 1, s_31)))
                    goto lab3;
                z->ket = z->c; /* ], line 117 */
                z->c = c4;
                break;
            lab3:
                z->c = c4;
                {
                    int ret = skip_utf8(z->p, z->c, 0, z->l, 1);
                    if (ret < 0)
                        goto lab2;
                    z->c = ret; /* goto, line 117 */
                }
            }
            {
                int ret = slice_from_s(z, 1, s_32); /* <-, line 117 */
                if (ret < 0)
                    return ret;
            }
            z->B[0] = 1; /* set Y_found, line 117 */
            continue;
        lab2:
            z->c = c3;
            break;
        }
        z->c = c2;
    }
    z->I[0] = z->l;
    z->I[1] = z->l;
    {
        int c5 = z->c; /* do, line 121 */
        { /* gopast */ /* grouping v, line 122 */
            int ret = out_grouping_U(z, g_v, 97, 121, 1);
            if (ret < 0)
                goto lab4;
            z->c += ret;
        }
        { /* gopast */ /* non v, line 122 */
            int ret = in_grouping_U(z, g_v, 97, 121, 1);
            if (ret < 0)
                goto lab4;
            z->c += ret;
        }
        z->I[0] = z->c; /* setmark p1, line 122 */
        { /* gopast */  /* grouping v, line 123 */
            int ret = out_grouping_U(z, g_v, 97, 121, 1);
            if (ret < 0)
                goto lab4;
            z->c += ret;
        }
        { /* gopast */ /* non v, line 123 */
            int ret = in_grouping_U(z, g_v, 97, 121, 1);
            if (ret < 0)
                goto lab4;
            z->c += ret;
        }
        z->I[1] = z->c; /* setmark p2, line 123 */
    lab4:
        z->c = c5;
    }
    z->lb = z->c;
    z->c = z->l; /* backwards, line 126 */

    {
        int m6 = z->l - z->c;
        (void)m6; /* do, line 127 */
        {
            int ret = r_Step_1a(z);
            if (ret == 0)
                goto lab5; /* call Step_1a, line 127 */
            if (ret < 0)
                return ret;
        }
    lab5:
        z->c = z->l - m6;
    }
    {
        int m7 = z->l - z->c;
        (void)m7; /* do, line 128 */
        {
            int ret = r_Step_1b(z);
            if (ret == 0)
                goto lab6; /* call Step_1b, line 128 */
            if (ret < 0)
                return ret;
        }
    lab6:
        z->c = z->l - m7;
    }
    {
        int m8 = z->l - z->c;
        (void)m8; /* do, line 129 */
        {
            int ret = r_Step_1c(z);
            if (ret == 0)
                goto lab7; /* call Step_1c, line 129 */
            if (ret < 0)
                return ret;
        }
    lab7:
        z->c = z->l - m8;
    }
    {
        int m9 = z->l - z->c;
        (void)m9; /* do, line 130 */
        {
            int ret = r_Step_2(z);
            if (ret == 0)
                goto lab8; /* call Step_2, line 130 */
            if (ret < 0)
                return ret;
        }
    lab8:
        z->c = z->l - m9;
    }
    {
        int m10 = z->l - z->c;
        (void)m10; /* do, line 131 */
        {
            int ret = r_Step_3(z);
            if (ret == 0)
                goto lab9; /* call Step_3, line 131 */
            if (ret < 0)
                return ret;
        }
    lab9:
        z->c = z->l - m10;
    }
    {
        int m11 = z->l - z->c;
        (void)m11; /* do, line 132 */
        {
            int ret = r_Step_4(z);
            if (ret == 0)
                goto lab10; /* call Step_4, line 132 */
            if (ret < 0)
                return ret;
        }
    lab10:
        z->c = z->l - m11;
    }
    {
        int m12 = z->l - z->c;
        (void)m12; /* do, line 133 */
        {
            int ret = r_Step_5a(z);
            if (ret == 0)
                goto lab11; /* call Step_5a, line 133 */
            if (ret < 0)
                return ret;
        }
    lab11:
        z->c = z->l - m12;
    }
    {
        int m13 = z->l - z->c;
        (void)m13; /* do, line 134 */
        {
            int ret = r_Step_5b(z);
            if (ret == 0)
                goto lab12; /* call Step_5b, line 134 */
            if (ret < 0)
                return ret;
        }
    lab12:
        z->c = z->l - m13;
    }
    z->c = z->lb;
    {
        int c14 = z->c; /* do, line 137 */
        if (!(z->B[0]))
            goto lab13; /* Boolean test Y_found, line 137 */
        while (1) {     /* repeat, line 137 */
            int c15 = z->c;
            while (1) { /* goto, line 137 */
                int c16 = z->c;
                z->bra = z->c; /* [, line 137 */
                if (!(eq_s(z, 1, s_33)))
                    goto lab15;
                z->ket = z->c; /* ], line 137 */
                z->c = c16;
                break;
            lab15:
                z->c = c16;
                {
                    int ret = skip_utf8(z->p, z->c, 0, z->l, 1);
                    if (ret < 0)
                        goto lab14;
                    z->c = ret; /* goto, line 137 */
                }
            }
            {
                int ret = slice_from_s(z, 1, s_34); /* <-, line 137 */
                if (ret < 0)
                    return ret;
            }
            continue;
        lab14:
            z->c = c15;
            break;
        }
    lab13:
        z->c = c14;
    }
    return 1;
}

extern struct SN_env *porter_UTF_8_create_env(void) { return SN_create_env(0, 2, 1); }

extern void porter_UTF_8_close_env(struct SN_env *z) { SN_close_env(z, 0); }