/*
 * Copyright 1990 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
/*	  All Rights Reserved  	*/

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved. The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

 /* ts.c: minor string processing subroutines */
int
match(char *s1, char *s2)
{
	while (*s1 == *s2)
		if (*s1++ == '\0')
			return(1);
		else
			s2++;
	return(0);
}

int
prefix(char *small, char *big)
{
int c;
while ((c= *small++) == *big++)
	if (c==0) return(1);
return(c==0);
}

int
letter(int ch)
{
	if (ch >= 'a' && ch <= 'z')
		return(1);
	if (ch >= 'A' && ch <= 'Z')
		return(1);
	return(0);
}

int
numb(char *str)
{
	/* convert to integer */
	int k;
	for (k=0; *str >= '0' && *str <= '9'; str++)
		k = k*10 + *str - '0';
	return(k);
}

int
digit(int x)
{
	return(x>= '0' && x<= '9');
}

int
max(int a, int b)
{
return( a>b ? a : b);
}

void
tcopy(char *s, char *t)
{
	while (*s++ = *t++);
}