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#include <limits.h>
#include "api.h"
#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]
struct among
{ int s_size; /* number of chars in string */
const symbol * s; /* search string */
int substring_i;/* index to longest matching substring */
int result; /* result of the lookup */
int (* function)(struct SN_env *);
};
extern symbol * create_s(void);
extern void lose_s(symbol * p);
extern int skip_utf8(const symbol * p, int c, int limit, int n);
extern int skip_b_utf8(const symbol * p, int c, int limit, int n);
extern int in_grouping_U(struct SN_env * z, const unsigned char * s, int min, int max, int repeat);
extern int in_grouping_b_U(struct SN_env * z, const unsigned char * s, int min, int max, int repeat);
extern int out_grouping_U(struct SN_env * z, const unsigned char * s, int min, int max, int repeat);
extern int out_grouping_b_U(struct SN_env * z, const unsigned char * s, int min, int max, int repeat);
extern int in_grouping(struct SN_env * z, const unsigned char * s, int min, int max, int repeat);
extern int in_grouping_b(struct SN_env * z, const unsigned char * s, int min, int max, int repeat);
extern int out_grouping(struct SN_env * z, const unsigned char * s, int min, int max, int repeat);
extern int out_grouping_b(struct SN_env * z, const unsigned char * s, int min, int max, int repeat);
extern int eq_s(struct SN_env * z, int s_size, const symbol * s);
extern int eq_s_b(struct SN_env * z, int s_size, const symbol * s);
extern int eq_v(struct SN_env * z, const symbol * p);
extern int eq_v_b(struct SN_env * z, const symbol * p);
extern int find_among(struct SN_env * z, const struct among * v, int v_size);
extern int find_among_b(struct SN_env * z, const struct among * v, int v_size);
extern int replace_s(struct SN_env * z, int c_bra, int c_ket, int s_size, const symbol * s, int * adjustment);
extern int slice_from_s(struct SN_env * z, int s_size, const symbol * s);
extern int slice_from_v(struct SN_env * z, const symbol * p);
extern int slice_del(struct SN_env * z);
extern int insert_s(struct SN_env * z, int bra, int ket, int s_size, const symbol * s);
extern int insert_v(struct SN_env * z, int bra, int ket, const symbol * p);
extern symbol * slice_to(struct SN_env * z, symbol * p);
extern symbol * assign_to(struct SN_env * z, symbol * p);
extern int len_utf8(const symbol * p);
extern void debug(struct SN_env * z, int number, int line_count);
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