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Data Structures | Defines | Functions

header.h File Reference

#include <limits.h>
#include "api.h"
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Data Structures

struct  among

Defines

#define MAXINT   INT_MAX
#define MININT   INT_MIN
#define HEAD   2*sizeof(int)
#define SIZE(p)   ((int *)(p))[-1]
#define SET_SIZE(p, n)   ((int *)(p))[-1] = n
#define CAPACITY(p)   ((int *)(p))[-2]

Functions

symbol * create_s (void)
void lose_s (symbol *p)
int skip_utf8 (const symbol *p, int c, int lb, int l, int n)
int in_grouping_U (struct SN_env *z, const unsigned char *s, int min, int max, int repeat)
int in_grouping_b_U (struct SN_env *z, const unsigned char *s, int min, int max, int repeat)
int out_grouping_U (struct SN_env *z, const unsigned char *s, int min, int max, int repeat)
int out_grouping_b_U (struct SN_env *z, const unsigned char *s, int min, int max, int repeat)
int in_grouping (struct SN_env *z, const unsigned char *s, int min, int max, int repeat)
int in_grouping_b (struct SN_env *z, const unsigned char *s, int min, int max, int repeat)
int out_grouping (struct SN_env *z, const unsigned char *s, int min, int max, int repeat)
int out_grouping_b (struct SN_env *z, const unsigned char *s, int min, int max, int repeat)
int eq_s (struct SN_env *z, int s_size, const symbol *s)
int eq_s_b (struct SN_env *z, int s_size, const symbol *s)
int eq_v (struct SN_env *z, const symbol *p)
int eq_v_b (struct SN_env *z, const symbol *p)
int find_among (struct SN_env *z, const struct among *v, int v_size)
int find_among_b (struct SN_env *z, const struct among *v, int v_size)
int replace_s (struct SN_env *z, int c_bra, int c_ket, int s_size, const symbol *s, int *adjustment)
int slice_from_s (struct SN_env *z, int s_size, const symbol *s)
int slice_from_v (struct SN_env *z, const symbol *p)
int slice_del (struct SN_env *z)
int insert_s (struct SN_env *z, int bra, int ket, int s_size, const symbol *s)
int insert_v (struct SN_env *z, int bra, int ket, const symbol *p)
symbol * slice_to (struct SN_env *z, symbol *p)
symbol * assign_to (struct SN_env *z, symbol *p)
void debug (struct SN_env *z, int number, int line_count)

Define Documentation

#define CAPACITY (   p  )     ((int *)(p))[-2]

Definition at line 13 of file header.h.

Referenced by assign_to(), create_s(), increase_size(), replace_s(), and slice_to().

#define HEAD   2*sizeof(int)

Definition at line 9 of file header.h.

Referenced by create_s(), increase_size(), and lose_s().

#define MAXINT   INT_MAX

Definition at line 6 of file header.h.

#define MININT   INT_MIN

Definition at line 7 of file header.h.

#define SET_SIZE (   p,
  n 
)    ((int *)(p))[-1] = n

Definition at line 12 of file header.h.

Referenced by assign_to(), create_s(), replace_s(), and slice_to().

#define SIZE (   p  )     ((int *)(p))[-1]

Definition at line 11 of file header.h.

Referenced by eq_v(), eq_v_b(), insert_v(), replace_s(), slice_check(), and slice_from_v().

Function Documentation

symbol* assign_to ( struct SN_env *  z,
symbol *  p 
)

Definition at line 441 of file utilities.c.

References CAPACITY, increase_size(), SN_env::l, memmove, NULL, SN_env::p, and SET_SIZE.

                                                         {
    int len = z->l;
    if (CAPACITY(p) < len) {
        p = increase_size(p, len);
        if (p == NULL)
            return NULL;
    }
    memmove(p, z->p, len * sizeof(symbol));
    SET_SIZE(p, len);
    return p;
}

symbol* create_s ( void   ) 

Definition at line 7 of file utilities.c.

References CAPACITY, CREATE_SIZE, HEAD, malloc, NULL, SN_env::p, and SET_SIZE.

Referenced by replace_s(), and SN_create_env().

                               {
    symbol * p;
    void * mem = malloc(HEAD + (CREATE_SIZE + 1) * sizeof(symbol));
    if (mem == NULL) return NULL;
    p = (symbol *) (HEAD + (char *) mem);
    CAPACITY(p) = CREATE_SIZE;
    SET_SIZE(p, CREATE_SIZE);
    return p;
}

void debug ( struct SN_env *  z,
int  number,
int  line_count 
)
int eq_s ( struct SN_env *  z,
int  s_size,
const symbol *  s 
)

Definition at line 189 of file utilities.c.

References SN_env::c, SN_env::l, memcmp(), and SN_env::p.

Referenced by eq_v(), porter_ISO_8859_1_stem(), porter_UTF_8_stem(), r_is_reserved_word(), r_postlude(), and r_prelude().

                                                                 {
    if (z->l - z->c < s_size || memcmp(z->p + z->c, s, s_size * sizeof(symbol)) != 0) return 0;
    z->c += s_size; return 1;
}

int eq_s_b ( struct SN_env *  z,
int  s_size,
const symbol *  s 
)

Definition at line 194 of file utilities.c.

References SN_env::c, SN_env::lb, memcmp(), and SN_env::p.

Referenced by eq_v_b(), french_ISO_8859_1_stem(), french_UTF_8_stem(), portuguese_ISO_8859_1_stem(), portuguese_UTF_8_stem(), r_adjectival(), r_append_U_to_stems_ending_with_d_or_g(), r_attached_pronoun(), r_case_ending(), r_check_vowel_harmony(), r_e_ending(), r_en_ending(), r_main_suffix(), r_mark_ki(), r_mark_suffix_with_optional_n_consonant(), r_mark_suffix_with_optional_s_consonant(), r_mark_suffix_with_optional_y_consonant(), r_mark_yken(), r_other_endings(), r_other_suffix(), r_perfective_gerund(), r_possessive(), r_residual_form(), r_residual_suffix(), r_standard_suffix(), r_step_0(), r_Step_1c(), r_Step_2(), r_Step_4(), r_Step_5(), r_Step_5a(), r_Step_5b(), r_t_plural(), r_tidy(), r_tidy_up(), r_un_accent(), r_verb(), r_verb_suffix(), r_VI(), r_vowel_suffix(), r_y_verb_suffix(), russian_KOI8_R_stem(), and russian_UTF_8_stem().

                                                                   {
    if (z->c - z->lb < s_size || memcmp(z->p + z->c - s_size, s, s_size * sizeof(symbol)) != 0) return 0;
    z->c -= s_size; return 1;
}

int eq_v ( struct SN_env *  z,
const symbol *  p 
)

Definition at line 199 of file utilities.c.

References eq_s(), and SIZE.

                                                     {
    return eq_s(z, SIZE(p), p);
}

int eq_v_b ( struct SN_env *  z,
const symbol *  p 
)

Definition at line 203 of file utilities.c.

References eq_s_b(), and SIZE.

Referenced by r_tidy(), and r_undouble().

                                                       {
    return eq_s_b(z, SIZE(p), p);
}

int find_among ( struct SN_env *  z,
const struct among *  v,
int  v_size 
)

Definition at line 207 of file utilities.c.

References SN_env::c, among::function, i, SN_env::l, SN_env::p, among::result, among::s, among::s_size, and among::substring_i.

Referenced by r_exception1(), r_mark_regions(), r_postlude(), and r_prelude().

                                                                             {

    int i = 0;
    int j = v_size;

    int c = z->c; int l = z->l;
    symbol * q = z->p + c;

    const struct among * w;

    int common_i = 0;
    int common_j = 0;

    int first_key_inspected = 0;

    while(1) {
        int k = i + ((j - i) >> 1);
        int diff = 0;
        int common = common_i < common_j ? common_i : common_j; /* smaller */
        w = v + k;
        {
            int i2; for (i2 = common; i2 < w->s_size; i2++) {
                if (c + common == l) { diff = -1; break; }
                diff = q[common] - w->s[i2];
                if (diff != 0) break;
                common++;
            }
        }
        if (diff < 0) { j = k; common_j = common; }
                 else { i = k; common_i = common; }
        if (j - i <= 1) {
            if (i > 0) break; /* v->s has been inspected */
            if (j == i) break; /* only one item in v */

            /* - but now we need to go round once more to get
               v->s inspected. This looks messy, but is actually
               the optimal approach.  */

            if (first_key_inspected) break;
            first_key_inspected = 1;
        }
    }
    while(1) {
        w = v + i;
        if (common_i >= w->s_size) {
            z->c = c + w->s_size;
            if (w->function == 0) return w->result;
            {
                int res = w->function(z);
                z->c = c + w->s_size;
                if (res) return w->result;
            }
        }
        i = w->substring_i;
        if (i < 0) return 0;
    }
}

int find_among_b ( struct SN_env *  z,
const struct among *  v,
int  v_size 
)

Definition at line 267 of file utilities.c.

References SN_env::c, among::function, i, SN_env::lb, SN_env::p, among::result, among::s, among::s_size, and among::substring_i.

Referenced by r_adjectival(), r_adjective(), r_attached_pronoun(), r_case(), r_case_ending(), r_case_other(), r_case_special(), r_combo_suffix(), r_consonant_pair(), r_derivational(), r_double(), r_exception2(), r_factive(), r_i_plural(), r_i_verb_suffix(), r_instrum(), r_LONG(), r_main_suffix(), r_mark_cAsInA(), r_mark_DA(), r_mark_DAn(), r_mark_DUr(), r_mark_lAr(), r_mark_lArI(), r_mark_nA(), r_mark_ncA(), r_mark_ndA(), r_mark_ndAn(), r_mark_nU(), r_mark_nUn(), r_mark_nUz(), r_mark_possessives(), r_mark_sUn(), r_mark_sUnUz(), r_mark_yA(), r_mark_yDU(), r_mark_ylA(), r_mark_ymUs_(), r_mark_ysA(), r_mark_yUm(), r_mark_yUz(), r_noun(), r_other_endings(), r_other_suffix(), r_owned(), r_particle_etc(), r_perfective_gerund(), r_plur_owner(), r_plural(), r_possessive(), r_post_process_last_consonants(), r_reflexive(), r_residual_form(), r_residual_suffix(), r_sing_owner(), r_standard_suffix(), r_step_0(), r_Step_1a(), r_Step_1b(), r_Step_2(), r_Step_3(), r_Step_4(), r_Step_5(), r_t_plural(), r_tidy_up(), r_un_double(), r_undouble(), r_v_ending(), r_verb(), r_verb_suffix(), r_vowel_suffix(), and r_y_verb_suffix().

                                                                               {

    int i = 0;
    int j = v_size;

    int c = z->c; int lb = z->lb;
    symbol * q = z->p + c - 1;

    const struct among * w;

    int common_i = 0;
    int common_j = 0;

    int first_key_inspected = 0;

    while(1) {
        int k = i + ((j - i) >> 1);
        int diff = 0;
        int common = common_i < common_j ? common_i : common_j;
        w = v + k;
        {
            int i2; for (i2 = w->s_size - 1 - common; i2 >= 0; i2--) {
                if (c - common == lb) { diff = -1; break; }
                diff = q[- common] - w->s[i2];
                if (diff != 0) break;
                common++;
            }
        }
        if (diff < 0) { j = k; common_j = common; }
                 else { i = k; common_i = common; }
        if (j - i <= 1) {
            if (i > 0) break;
            if (j == i) break;
            if (first_key_inspected) break;
            first_key_inspected = 1;
        }
    }
    while(1) {
        w = v + i;
        if (common_i >= w->s_size) {
            z->c = c - w->s_size;
            if (w->function == 0) return w->result;
            {
                int res = w->function(z);
                z->c = c - w->s_size;
                if (res) return w->result;
            }
        }
        i = w->substring_i;
        if (i < 0) return 0;
    }
}

int in_grouping ( struct SN_env *  z,
const unsigned char *  s,
int  min,
int  max,
int  repeat 
)

Definition at line 141 of file utilities.c.

References SN_env::c, SN_env::l, and SN_env::p.

Referenced by porter_ISO_8859_1_stem(), r_mark_regions(), and r_prelude().

                                                                                                 {
    do {
    int ch;
    if (z->c >= z->l) return -1;
    ch = z->p[z->c];
    if (ch > max || (ch -= min) < 0 || (s[ch >> 3] & (0X1 << (ch & 0X7))) == 0)
        return 1;
    z->c++;
    } while (repeat);
    return 0;
}

int in_grouping_b ( struct SN_env *  z,
const unsigned char *  s,
int  min,
int  max,
int  repeat 
)

Definition at line 153 of file utilities.c.

References SN_env::c, SN_env::lb, and SN_env::p.

Referenced by r_case_ending(), r_main_suffix(), r_particle_etc(), r_shortv(), r_standard_suffix(), r_Step_2(), r_t_plural(), r_tidy(), r_VI(), and r_vowel_suffix().

                                                                                                   {
    do {
    int ch;
    if (z->c <= z->lb) return -1;
    ch = z->p[z->c - 1];
    if (ch > max || (ch -= min) < 0 || (s[ch >> 3] & (0X1 << (ch & 0X7))) == 0)
        return 1;
    z->c--;
    } while (repeat);
    return 0;
}

int in_grouping_b_U ( struct SN_env *  z,
const unsigned char *  s,
int  min,
int  max,
int  repeat 
)

Definition at line 103 of file utilities.c.

References SN_env::c, get_b_utf8(), SN_env::lb, SN_env::p, and unless.

Referenced by r_case_ending(), r_main_suffix(), r_mark_sU(), r_mark_suffix_with_optional_n_consonant(), r_mark_suffix_with_optional_s_consonant(), r_mark_suffix_with_optional_U_vowel(), r_mark_suffix_with_optional_y_consonant(), r_mark_yU(), r_particle_etc(), r_shortv(), r_standard_suffix(), r_Step_2(), r_t_plural(), r_tidy(), r_VI(), and r_vowel_suffix().

                                                                                                     {
    do {
    int ch;
    int w = get_b_utf8(z->p, z->c, z->lb, & ch);
    unless (w) return -1;
    if (ch > max || (ch -= min) < 0 || (s[ch >> 3] & (0X1 << (ch & 0X7))) == 0)
        return w;
    z->c -= w;
    } while (repeat);
    return 0;
}

int in_grouping_U ( struct SN_env *  z,
const unsigned char *  s,
int  min,
int  max,
int  repeat 
)

Definition at line 91 of file utilities.c.

References SN_env::c, get_utf8(), SN_env::l, SN_env::p, and unless.

Referenced by porter_UTF_8_stem(), r_mark_regions(), and r_prelude().

                                                                                                   {
    do {
    int ch;
    int w = get_utf8(z->p, z->c, z->l, & ch);
    unless (w) return -1;
    if (ch > max || (ch -= min) < 0 || (s[ch >> 3] & (0X1 << (ch & 0X7))) == 0)
        return w;
    z->c += w;
    } while (repeat);
    return 0;
}

int insert_s ( struct SN_env *  z,
int  bra,
int  ket,
int  s_size,
const symbol *  s 
)

Definition at line 405 of file utilities.c.

References SN_env::bra, SN_env::ket, and replace_s().

Referenced by r_append_U_to_stems_ending_with_d_or_g(), and r_Step_1b().

                                                                                       {
    int adjustment;
    if (replace_s(z, bra, ket, s_size, s, &adjustment))
        return -1;
    if (bra <= z->bra) z->bra += adjustment;
    if (bra <= z->ket) z->ket += adjustment;
    return 0;
}

int insert_v ( struct SN_env *  z,
int  bra,
int  ket,
const symbol *  p 
)

Definition at line 414 of file utilities.c.

References SN_env::bra, SN_env::ket, replace_s(), and SIZE.

                                                                           {
    int adjustment;
    if (replace_s(z, bra, ket, SIZE(p), p, &adjustment))
        return -1;
    if (bra <= z->bra) z->bra += adjustment;
    if (bra <= z->ket) z->ket += adjustment;
    return 0;
}

void lose_s ( symbol *  p  ) 

Definition at line 17 of file utilities.c.

References free, HEAD, and NULL.

Referenced by increase_size(), slice_to(), and SN_close_env().

                               {
    if (p == NULL) return;
    free((char *) p - HEAD);
}

int out_grouping ( struct SN_env *  z,
const unsigned char *  s,
int  min,
int  max,
int  repeat 
)

Definition at line 165 of file utilities.c.

References SN_env::c, SN_env::l, SN_env::p, and unless.

Referenced by porter_ISO_8859_1_stem(), and r_mark_regions().

                                                                                                  {
    do {
    int ch;
    if (z->c >= z->l) return -1;
    ch = z->p[z->c];
    unless (ch > max || (ch -= min) < 0 || (s[ch >> 3] & (0X1 << (ch & 0X7))) == 0)
        return 1;
    z->c++;
    } while (repeat);
    return 0;
}

int out_grouping_b ( struct SN_env *  z,
const unsigned char *  s,
int  min,
int  max,
int  repeat 
)

Definition at line 177 of file utilities.c.

References SN_env::c, SN_env::lb, SN_env::p, and unless.

Referenced by r_case_ending(), r_e_ending(), r_en_ending(), r_i_verb_suffix(), r_main_suffix(), r_residual_suffix(), r_shortv(), r_standard_suffix(), r_Step_1a(), r_Step_1b(), r_Step_1c(), r_tidy(), r_un_accent(), r_undouble(), and r_verb_suffix().

                                                                                                    {
    do {
    int ch;
    if (z->c <= z->lb) return -1;
    ch = z->p[z->c - 1];
    unless (ch > max || (ch -= min) < 0 || (s[ch >> 3] & (0X1 << (ch & 0X7))) == 0)
        return 1;
    z->c--;
    } while (repeat);
    return 0;
}

int out_grouping_b_U ( struct SN_env *  z,
const unsigned char *  s,
int  min,
int  max,
int  repeat 
)

Definition at line 127 of file utilities.c.

References SN_env::c, get_b_utf8(), SN_env::lb, SN_env::p, and unless.

Referenced by r_append_U_to_stems_ending_with_d_or_g(), r_case_ending(), r_check_vowel_harmony(), r_e_ending(), r_en_ending(), r_i_verb_suffix(), r_main_suffix(), r_mark_suffix_with_optional_U_vowel(), r_residual_suffix(), r_shortv(), r_standard_suffix(), r_Step_1a(), r_Step_1b(), r_Step_1c(), r_tidy(), r_un_accent(), r_undouble(), and r_verb_suffix().

                                                                                                      {
    do {
    int ch;
    int w = get_b_utf8(z->p, z->c, z->lb, & ch);
    unless (w) return -1;
    unless (ch > max || (ch -= min) < 0 || (s[ch >> 3] & (0X1 << (ch & 0X7))) == 0)
        return w;
    z->c -= w;
    } while (repeat);
    return 0;
}

int out_grouping_U ( struct SN_env *  z,
const unsigned char *  s,
int  min,
int  max,
int  repeat 
)

Definition at line 115 of file utilities.c.

References SN_env::c, get_utf8(), SN_env::l, SN_env::p, and unless.

Referenced by porter_UTF_8_stem(), r_mark_regions(), and r_more_than_one_syllable_word().

                                                                                                    {
    do {
    int ch;
    int w = get_utf8(z->p, z->c, z->l, & ch);
    unless (w) return -1;
    unless (ch > max || (ch -= min) < 0 || (s[ch >> 3] & (0X1 << (ch & 0X7))) == 0)
        return w;
    z->c += w;
    } while (repeat);
    return 0;
}

int replace_s ( struct SN_env *  z,
int  c_bra,
int  c_ket,
int  s_size,
const symbol *  s,
int *  adjustment 
)

Definition at line 343 of file utilities.c.

References SN_env::c, CAPACITY, create_s(), increase_size(), SN_env::l, memmove, NULL, SN_env::p, SET_SIZE, SIZE, and unless.

Referenced by insert_s(), insert_v(), slice_from_s(), and SN_set_current().

{
    int adjustment;
    int len;
    if (z->p == NULL) {
        z->p = create_s();
        if (z->p == NULL) return -1;
    }
    adjustment = s_size - (c_ket - c_bra);
    len = SIZE(z->p);
    if (adjustment != 0) {
        if (adjustment + len > CAPACITY(z->p)) {
            z->p = increase_size(z->p, adjustment + len);
            if (z->p == NULL) return -1;
        }
        memmove(z->p + c_ket + adjustment,
                z->p + c_ket,
                (len - c_ket) * sizeof(symbol));
        SET_SIZE(z->p, adjustment + len);
        z->l += adjustment;
        if (z->c >= c_ket)
            z->c += adjustment;
        else
            if (z->c > c_bra)
                z->c = c_bra;
    }
    unless (s_size == 0) memmove(z->p + c_bra, s, s_size * sizeof(symbol));
    if (adjptr != NULL)
        *adjptr = adjustment;
    return 0;
}

int skip_utf8 ( const symbol *  p,
int  c,
int  lb,
int  l,
int  n 
)

Definition at line 30 of file utilities.c.

Referenced by english_UTF_8_stem(), porter_UTF_8_stem(), r_case_ending(), r_consonant_pair(), r_is_reserved_word(), r_mark_regions(), r_mark_suffix_with_optional_n_consonant(), r_mark_suffix_with_optional_s_consonant(), r_mark_suffix_with_optional_U_vowel(), r_mark_suffix_with_optional_y_consonant(), r_postlude(), r_prelude(), r_standard_suffix(), r_Step_1a(), r_Step_1b(), r_tidy(), r_un_double(), and r_undouble().

                                                                    {
    int b;
    if (n >= 0) {
        for (; n > 0; n--) {
            if (c >= l) return -1;
            b = p[c++];
            if (b >= 0xC0) {   /* 1100 0000 */
                while (c < l) {
                    b = p[c];
                    if (b >= 0xC0 || b < 0x80) break;
                    /* break unless b is 10------ */
                    c++;
                }
            }
        }
    } else {
        for (; n < 0; n++) {
            if (c <= lb) return -1;
            b = p[--c];
            if (b >= 0x80) {   /* 1000 0000 */
                while (c > lb) {
                    b = p[c];
                    if (b >= 0xC0) break; /* 1100 0000 */
                    c--;
                }
            }
        }
    }
    return c;
}

int slice_del ( struct SN_env *  z  ) 

Definition at line 401 of file utilities.c.

References slice_from_s().

Referenced by portuguese_ISO_8859_1_stem(), portuguese_UTF_8_stem(), r_adjectival(), r_adjective(), r_attached_pronoun(), r_case(), r_case_ending(), r_case_other(), r_consonant_pair(), r_derivational(), r_e_ending(), r_en_ending(), r_factive(), r_i_plural(), r_i_verb_suffix(), r_instrum(), r_main_suffix(), r_noun(), r_other_endings(), r_other_suffix(), r_owned(), r_particle_etc(), r_perfective_gerund(), r_plur_owner(), r_plural(), r_possessive(), r_prelude(), r_reflexive(), r_residual_form(), r_residual_suffix(), r_sing_owner(), r_standard_suffix(), r_stem_nominal_verb_suffixes(), r_stem_noun_suffixes(), r_stem_suffix_chain_before_ki(), r_step_0(), r_Step_1a(), r_Step_1b(), r_Step_2(), r_Step_3(), r_Step_4(), r_Step_5(), r_Step_5a(), r_Step_5b(), r_t_plural(), r_tidy(), r_tidy_up(), r_un_double(), r_undouble(), r_verb(), r_verb_suffix(), r_vowel_suffix(), r_y_verb_suffix(), russian_KOI8_R_stem(), and russian_UTF_8_stem().

                                        {
    return slice_from_s(z, 0, 0);
}

int slice_from_s ( struct SN_env *  z,
int  s_size,
const symbol *  s 
)

Definition at line 392 of file utilities.c.

References SN_env::bra, SN_env::ket, NULL, replace_s(), and slice_check().

Referenced by french_ISO_8859_1_stem(), french_UTF_8_stem(), porter_ISO_8859_1_stem(), porter_UTF_8_stem(), r_attached_pronoun(), r_case_other(), r_case_special(), r_combo_suffix(), r_exception1(), r_main_suffix(), r_other_suffix(), r_owned(), r_plur_owner(), r_plural(), r_possessive(), r_post_process_last_consonants(), r_postlude(), r_prelude(), r_residual_form(), r_residual_suffix(), r_sing_owner(), r_standard_suffix(), r_step_0(), r_Step_1a(), r_Step_1b(), r_Step_1c(), r_Step_2(), r_Step_3(), r_un_accent(), r_v_ending(), slice_del(), and slice_from_v().

                                                                         {
    if (slice_check(z)) return -1;
    return replace_s(z, z->bra, z->ket, s_size, s, NULL);
}

int slice_from_v ( struct SN_env *  z,
const symbol *  p 
)

Definition at line 397 of file utilities.c.

References SIZE, and slice_from_s().

                                                             {
    return slice_from_s(z, SIZE(p), p);
}

symbol* slice_to ( struct SN_env *  z,
symbol *  p 
)

Definition at line 423 of file utilities.c.

References SN_env::bra, CAPACITY, increase_size(), SN_env::ket, lose_s(), memmove, NULL, SN_env::p, SET_SIZE, and slice_check().

Referenced by r_tidy(), and r_undouble().

                                                        {
    if (slice_check(z)) {
        lose_s(p);
        return NULL;
    }
    {
        int len = z->ket - z->bra;
        if (CAPACITY(p) < len) {
            p = increase_size(p, len);
            if (p == NULL)
                return NULL;
        }
        memmove(p, z->p + z->bra, len * sizeof(symbol));
        SET_SIZE(p, len);
    }
    return p;
}

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