mpack_src/mpack-1.6-4/strcasecmp.c

/*
 * String manipulation routines
 */
/* (C) Copyright 1993,1994 by Carnegie Mellon University
 * All Rights Reserved.
 *
 * Permission to use, copy, modify, distribute, and sell this software
 * and its documentation for any purpose is hereby granted without
 * fee, provided that the above copyright notice appear in all copies
 * and that both that copyright notice and this permission notice
 * appear in supporting documentation, and that the name of Carnegie
 * Mellon University not be used in advertising or publicity
 * pertaining to distribution of the software without specific,
 * written prior permission.  Carnegie Mellon University makes no
 * representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied
 * warranty.
 *
 * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
 * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 */

#include <ctype.h>

static unsigned char upcase[256] = {
    0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
   16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
  ' ','!','"','#','$','%','&', 39,'(',')','*','+',',','-','.','/',
  '0','1','2','3','4','5','6','7','8','9',':',';','<','=','>','?',
  '@','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O',
  'P','Q','R','S','T','U','V','W','X','Y','Z','[', 92,']','^','_',
  '`','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O',
  'P','Q','R','S','T','U','V','W','X','Y','Z','{','|','}','~',127,
  128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
  144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
  160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
  176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
  192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
  208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
  224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
  240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255};

#define UPC(x) (upcase[(unsigned char)(x)])

/*
 * Same as strcmp, but case-insensitive.
 */
int
strcasecmp(register char *s1, register char *s2)
{
    register char c1;
    while ((c1 = *s1) && UPC(c1) == UPC(*s2)) {
        s1++;
        s2++;
    }
    return UPC(c1) - UPC(*s2);
}

/*
 * Same as strncmp, but case-insensitive.
 */
int
strncasecmp(register char *s1, register char *s2, int n)
{
    register char c1;
    while (n-- && (c1 = *s1) && UPC(c1) == UPC(*s2)) {
        s1++;
        s2++;
    }
    if (n == -1) return 0;
    return UPC(c1) - UPC(*s2);
}

1	/*
2	* String manipulation routines
3	*/
4	/* (C) Copyright 1993,1994 by Carnegie Mellon University
5	* All Rights Reserved.
6	*
7	* Permission to use, copy, modify, distribute, and sell this software
8	* and its documentation for any purpose is hereby granted without
9	* fee, provided that the above copyright notice appear in all copies
10	* and that both that copyright notice and this permission notice
11	* appear in supporting documentation, and that the name of Carnegie
12	* Mellon University not be used in advertising or publicity
13	* pertaining to distribution of the software without specific,
14	* written prior permission. Carnegie Mellon University makes no
15	* representations about the suitability of this software for any
16	* purpose. It is provided "as is" without express or implied
17	* warranty.
18	*
19	* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
20	* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
21	* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
22	* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
23	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
24	* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
25	* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
26	* SOFTWARE.
27	*/
28
29	#include <ctype.h>
30
31	static unsigned char upcase[256] = {
32	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
33	16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
34	' ','!','"','#','$','%','&', 39,'(',')','*','+',',','-','.','/',
35	'0','1','2','3','4','5','6','7','8','9',':',';','<','=','>','?',
36	'@','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O',
37	'P','Q','R','S','T','U','V','W','X','Y','Z','[', 92,']','^','_',
38	'`','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O',
39	'P','Q','R','S','T','U','V','W','X','Y','Z','{','\|','}','~',127,
40	128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
41	144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
42	160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
43	176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
44	192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
45	208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
46	224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
47	240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255};
48
49	#define UPC(x) (upcase[(unsigned char)(x)])
50
51	/*
52	* Same as strcmp, but case-insensitive.
53	*/
54	int
55	strcasecmp(register char s1, register char s2)
56	{
57	register char c1;
58	while ((c1 = s1) && UPC(c1) == UPC(s2)) {
59	s1++;
60	s2++;
61	}
62	return UPC(c1) - UPC(*s2);
63	}
64
65	/*
66	* Same as strncmp, but case-insensitive.
67	*/
68	int
69	strncasecmp(register char s1, register char s2, int n)
70	{
71	register char c1;
72	while (n-- && (c1 = s1) && UPC(c1) == UPC(s2)) {
73	s1++;
74	s2++;
75	}
76	if (n == -1) return 0;
77	return UPC(c1) - UPC(*s2);
78	}
79