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#ifndef AC_H
#define AC_H
#ifdef __cplusplus
extern "C" {
#endif
#define AC_EXPORT __attribute__ ((visibility ("default")))
/* If the subject-string dosen't match any of the given patterns, "match_begin"
* should be a negative; otherwise the substring of the subject-string,
* starting from offset "match_begin" to "match_end" incusively,
* should exactly match the pattern specified by the 'pattern_idx' (i.e.
* the pattern is "pattern_v[pattern_idx]" where the "pattern_v" is the
* first acutal argument passing to ac_create())
*/
typedef struct {
int match_begin;
int match_end;
int pattern_idx;
} ac_result_t;
struct ac_t;
/* Create an AC instance. "pattern_v" is a vector of patterns, the length of
* i-th pattern is specified by "pattern_len_v[i]"; the number of patterns
* is specified by "vect_len".
*
* Return the instance on success, or NUL otherwise.
*/
ac_t* ac_create(const char** pattern_v, unsigned int* pattern_len_v,
unsigned int vect_len) AC_EXPORT;
ac_result_t ac_match(ac_t*, const char *str, unsigned int len) AC_EXPORT;
ac_result_t ac_match_longest_l(ac_t*, const char *str, unsigned int len) AC_EXPORT;
/* Similar to ac_match() except that it only returns match-begin. The rationale
* for this interface is that luajit has hard time in dealing with strcture-
* return-value.
*/
int ac_match2(ac_t*, const char *str, unsigned int len) AC_EXPORT;
void ac_free(void*) AC_EXPORT;
#ifdef __cplusplus
}
#endif
#endif /* AC_H */
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