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#ifndef MATCHER_H__
#define MATCHER_H__
#include <stdio.h>
#include <regex.h>
enum match_type_t { MATCH_FIXED, MATCH_EXACT, MATCH_REGEX };
union pattern_t {
const char * fixed;
regex_t * regex;
};
struct matcher_t {
enum match_type_t type;
int case_sensitive; /* flag */
int show_fieldnames; /* flag */
int exact_match; /* flag */
int inverse; /* flag: true iff print those paras that don't match */
const char * field;
union pattern_t pattern;
};
/* Return true if all went well. */
int
grep_control (struct matcher_t * matcher, FILE * f, char * show_fields [],
const char * fname);
char *
get_regerror (int errcode, regex_t *compiled);
#endif /* MATCHER_H__ */
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