xref: /onnv-gate/usr/src/cmd/sh/string.c (revision 0)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23*0Sstevel@tonic-gate /*	  All Rights Reserved  	*/
24*0Sstevel@tonic-gate 
25*0Sstevel@tonic-gate 
26*0Sstevel@tonic-gate #ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.8.2.1	*/
27*0Sstevel@tonic-gate /*
28*0Sstevel@tonic-gate  * UNIX shell
29*0Sstevel@tonic-gate  */
30*0Sstevel@tonic-gate 
31*0Sstevel@tonic-gate #include	"defs.h"
32*0Sstevel@tonic-gate 
33*0Sstevel@tonic-gate 
34*0Sstevel@tonic-gate /* ========	general purpose string handling ======== */
35*0Sstevel@tonic-gate 
36*0Sstevel@tonic-gate 
37*0Sstevel@tonic-gate unsigned char *
38*0Sstevel@tonic-gate movstr(a, b)
39*0Sstevel@tonic-gate register unsigned char	*a, *b;
40*0Sstevel@tonic-gate {
41*0Sstevel@tonic-gate 	while (*b++ = *a++);
42*0Sstevel@tonic-gate 	return(--b);
43*0Sstevel@tonic-gate }
44*0Sstevel@tonic-gate 
45*0Sstevel@tonic-gate any(c, s)
46*0Sstevel@tonic-gate wchar_t		c;
47*0Sstevel@tonic-gate unsigned char	*s;
48*0Sstevel@tonic-gate {
49*0Sstevel@tonic-gate 	register unsigned int d;
50*0Sstevel@tonic-gate 
51*0Sstevel@tonic-gate 	while (d = *s++)
52*0Sstevel@tonic-gate 	{
53*0Sstevel@tonic-gate 		if (d == c)
54*0Sstevel@tonic-gate 			return(TRUE);
55*0Sstevel@tonic-gate 	}
56*0Sstevel@tonic-gate 	return(FALSE);
57*0Sstevel@tonic-gate }
58*0Sstevel@tonic-gate 
59*0Sstevel@tonic-gate int anys(c, s)
60*0Sstevel@tonic-gate unsigned char *c, *s;
61*0Sstevel@tonic-gate {
62*0Sstevel@tonic-gate 	wchar_t f, e;
63*0Sstevel@tonic-gate 	register wchar_t d;
64*0Sstevel@tonic-gate 	register int n;
65*0Sstevel@tonic-gate 	if((n = mbtowc(&f, (char *)c, MULTI_BYTE_MAX)) <= 0)
66*0Sstevel@tonic-gate 		return(FALSE);
67*0Sstevel@tonic-gate 	d = f;
68*0Sstevel@tonic-gate 	while(1) {
69*0Sstevel@tonic-gate 		if((n = mbtowc(&e, (char *)s, MULTI_BYTE_MAX)) <= 0)
70*0Sstevel@tonic-gate 			return(FALSE);
71*0Sstevel@tonic-gate 		if(d == e)
72*0Sstevel@tonic-gate 			return(TRUE);
73*0Sstevel@tonic-gate 		s += n;
74*0Sstevel@tonic-gate 	}
75*0Sstevel@tonic-gate }
76*0Sstevel@tonic-gate 
77*0Sstevel@tonic-gate int cf(s1, s2)
78*0Sstevel@tonic-gate register unsigned char *s1, *s2;
79*0Sstevel@tonic-gate {
80*0Sstevel@tonic-gate 	while (*s1++ == *s2)
81*0Sstevel@tonic-gate 		if (*s2++ == 0)
82*0Sstevel@tonic-gate 			return(0);
83*0Sstevel@tonic-gate 	return(*--s1 - *s2);
84*0Sstevel@tonic-gate }
85*0Sstevel@tonic-gate 
86*0Sstevel@tonic-gate int length(as)
87*0Sstevel@tonic-gate unsigned char	*as;
88*0Sstevel@tonic-gate {
89*0Sstevel@tonic-gate 	register unsigned char	*s;
90*0Sstevel@tonic-gate 
91*0Sstevel@tonic-gate 	if (s = as)
92*0Sstevel@tonic-gate 		while (*s++);
93*0Sstevel@tonic-gate 	return(s - as);
94*0Sstevel@tonic-gate }
95*0Sstevel@tonic-gate 
96*0Sstevel@tonic-gate unsigned char *
97*0Sstevel@tonic-gate movstrn(a, b, n)
98*0Sstevel@tonic-gate 	register unsigned char *a, *b;
99*0Sstevel@tonic-gate 	register int n;
100*0Sstevel@tonic-gate {
101*0Sstevel@tonic-gate 	while ((n-- > 0) && *a)
102*0Sstevel@tonic-gate 		*b++ = *a++;
103*0Sstevel@tonic-gate 
104*0Sstevel@tonic-gate 	return(b);
105*0Sstevel@tonic-gate }
106