cmd/tbl/ts.c

/*
 * 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.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

 /* 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++);
}