/*	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.
 */
     
/*
 * Copyright (c) 1983, 1984 1985, 1986, 1987, 1988, Sun Microsystems, Inc.
 * All Rights Reserved.
 */
  
/*	from OpenSolaris "ts.c	1.3	05/06/02 SMI"	 SVr4.0 1.1		*/

/*
 * Portions Copyright (c) 2005 Gunnar Ritter, Freiburg i. Br., Germany
 *
 * Sccsid @(#)ts.c	1.3 (gritter) 7/23/05
 */

 /* 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);
}

/* returns: 1 for match, 0 else */
int
cprefix(char *ctl, char *line)
{
	char c;

	if (*line++ != '.') return 0;
	while (*line == ' ' || *line == '\t') line++;
	while ((c = *ctl++) == *line++)
		if (!c) return 1;
	return !c;
}

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++));
}