[unix-history] / usr / src / usr.bin / uucp / libuu / prefix.c

#ifndef lint
static char sccsid[] = "@(#)prefix.c	5.2 (Berkeley) %G%";
#endif

/*
 *	check s2 for prefix s1
 *
 *	return 0 - !=
 *	return 1 - == 
 */

prefix(s1, s2)
register char *s1, *s2;
{
	register char c;

	while ((c = *s1++) == *s2++)
		if (c == '\0')
			return 1;
	return c == '\0';
}

/*
 *	check s2 for prefix s1 with a wildcard character ?
 *
 *	return 0 - !=
 *	return 1 - == 
 */

wprefix(s1, s2)
register char *s1, *s2;
{
	register char c;

	while ((c = *s1++) != '\0')
		if (*s2 == '\0'  ||  (c != *s2++  &&  c != '?'))
			return 0;
	return 1;
}
Commit	Line	Data
c374e9fd	1	#ifndef lint
46b15d8a	2	static char sccsid[] = "@(#)prefix.c 5.2 (Berkeley) %G%";
c374e9fd SL	3	#endif
c374e9fd SL	4
46b15d8a RC	5	/*
46b15d8a RC	6	* check s2 for prefix s1
c374e9fd SL	7	*
	8	* return 0 - !=
	9	* return 1 - ==
	10	*/
	11
	12	prefix(s1, s2)
	13	register char s1, s2;
	14	{
	15	register char c;
	16
	17	while ((c = s1++) == s2++)
	18	if (c == '\0')
46b15d8a RC	19	return 1;
46b15d8a RC	20	return c == '\0';
c374e9fd SL	21	}
c374e9fd SL	22
46b15d8a RC	23	/*
46b15d8a RC	24	* check s2 for prefix s1 with a wildcard character ?
c374e9fd SL	25	*
	26	* return 0 - !=
	27	* return 1 - ==
	28	*/
	29
	30	wprefix(s1, s2)
	31	register char s1, s2;
	32	{
	33	register char c;
	34
	35	while ((c = *s1++) != '\0')
	36	if (s2 == '\0' \|\| (c != s2++ && c != '?'))
46b15d8a RC	37	return 0;
46b15d8a RC	38	return 1;
c374e9fd	39	}