/*
 * Definitions etc. for regexp(3) routines.
 *
 * Caveat:  this is V8 regexp(3) [actually, a reimplementation thereof],
 * not the System V one.
 */
#define NSUBEXP  10
typedef struct regexp {
	const char *startp[NSUBEXP];
	const char *endp[NSUBEXP];
	char regstart;		/* Internal use only. */
	char reganch;		/* Internal use only. */
	int regmust;		/* Internal use only. */
	int regmlen;		/* Internal use only. */
	char program[1];	/* Unwarranted chumminess with compiler. */
} regexp;

extern regexp *regcomp(const char *re);
extern int regexec(regexp *rp, const char *s);
extern void regsub(const regexp *rp, const char *src, char *dst);
extern void regnsub(const regexp *rp, const char *src, char *dst, size_t len);
extern size_t regsublen(const regexp *rp, const char *src);

extern void regerror(char *message);
extern size_t regcomp_len(const char *exp);
extern regexp *regcomp_comp(const char *exp, struct regexp *r, size_t len);