#ifndef _REGEXP_H_
#define _REGEXP_H_

/*
 * Definitions etc. for regexp(3) routines.
 *
 * Caveat:  this is V8 regexp(3) [actually, a reimplementation thereof],
 * not the System V one.
 */

#define EFUN_REGEXP 1
#define ED_REGEXP   2

#define NSUBEXP  10
typedef struct regexp {
    const char *startp[NSUBEXP];
    const char *endp[NSUBEXP];
    char regstart;              /* Internal use only. */
    char reganch;               /* Internal use only. */
    char *regmust;              /* Internal use only. */
    int regmlen;                /* Internal use only. */
    char program[1];            /* Unwarranted chumminess with compiler. */
}      regexp;

extern int regnarrate;
extern int regexp_user;
extern const char *regexp_error;

void regdump (regexp *);
regexp *regcomp (unsigned char *, int);
int regexec (regexp *, const char *);
char *regsub (regexp *, char *, char *, int);

#endif