else sprintf(convbuf, "REG_0x%x", target); assert(strlen(convbuf) < sizeof(convbuf));
} else (void)sprintf(convbuf, "REG_0x%x", target);
static char *regatoi __P((const regex_t *preg, char *localbuf));#ifdef __cplusplus}#endif/* ========= end header generated by ./mkh ========= *//* = #define	REG_NOMATCH	 1 = #define	REG_BADPAT	 2 = #define	REG_ECOLLATE	 3 = #define	REG_ECTYPE	 4 = #define	REG_EESCAPE	 5 = #define	REG_ESUBREG	 6 = #define	REG_EBRACK	 7 = #define	REG_EPAREN	 8 = #define	REG_EBRACE	 9 = #define	REG_BADBR	10 = #define	REG_ERANGE	11 = #define	REG_ESPACE	12 = #define	REG_BADRPT	13 = #define	REG_EMPTY	14 = #define	REG_ASSERT	15 = #define	REG_INVARG	16 = #define	REG_ATOI	255	// convert name to number (!) = #define	REG_ITOA	0400	// convert number to name (!) */static struct rerr {	int code;	char *name;	char *explain;} rerrs[] = {	REG_NOMATCH,	"REG_NOMATCH",	"regexec() failed to match",	REG_BADPAT,	"REG_BADPAT",	"invalid regular expression",	REG_ECOLLATE,	"REG_ECOLLATE",	"invalid collating element",	REG_ECTYPE,	"REG_ECTYPE",	"invalid character class",	REG_EESCAPE,	"REG_EESCAPE",	"trailing backslash (\\)",	REG_ESUBREG,	"REG_ESUBREG",	"invalid backreference number",	REG_EBRACK,	"REG_EBRACK",	"brackets ([ ]) not balanced",	REG_EPAREN,	"REG_EPAREN",	"parentheses not balanced",	REG_EBRACE,	"REG_EBRACE",	"braces not balanced",	REG_BADBR,	"REG_BADBR",	"invalid repetition count(s)",	REG_ERANGE,	"REG_ERANGE",	"invalid character range",	REG_ESPACE,	"REG_ESPACE",	"out of memory",	REG_BADRPT,	"REG_BADRPT",	"repetition-operator operand invalid",	REG_EMPTY,	"REG_EMPTY",	"empty (sub)expression",	REG_ASSERT,	"REG_ASSERT",	"\"can't happen\" -- you found a bug",	REG_INVARG,	"REG_INVARG",	"invalid argument to regex routine",	0,		"",		"*** unknown regexp error code ***",};/* - regerror - the interface to error numbers = extern size_t regerror(int, const regex_t *, char *, size_t); *//* ARGSUSED */size_tregerror(errcode, preg, errbuf, errbuf_size)int errcode;const regex_t *preg;char *errbuf;size_t errbuf_size;{	register struct rerr *r;	register size_t len;	register int target = errcode &~ REG_ITOA;	register char *s;	char convbuf[50];	if (errcode == REG_ATOI)		s = regatoi(preg, convbuf);	else {		for (r = rerrs; r->code != 0; r++)			if (r->code == target)				break;			if (errcode&REG_ITOA) {			if (r->code != 0)				(void) strcpy(convbuf, r->name);			else				sprintf(convbuf, "REG_0x%x", target);			assert(strlen(convbuf) < sizeof(convbuf));			s = convbuf;		} else			s = r->explain;	}	len = strlen(s) + 1;	if (errbuf_size > 0) {		if (errbuf_size > len)			(void) strcpy(errbuf, s);		else {			(void) strncpy(errbuf, s, errbuf_size-1);			errbuf[errbuf_size-1] = '\0';		}	}	return(len);}/* - regatoi - internal routine to implement REG_ATOI == static char *regatoi(const regex_t *preg, char *localbuf); */static char *regatoi(preg, localbuf)const regex_t *preg;char *localbuf;{	register struct rerr *r;	for (r = rerrs; r->code != 0; r++)		if (strcmp(r->name, preg->re_endp) == 0)			break;	if (r->code == 0)		return("0");	sprintf(localbuf, "%d", r->code);	return(localbuf);}