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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
/*
* strncasecmp.c --
*
* Source code for the "strncasecmp" library routine.
*
* Copyright (c) 1988-1993 The Regents of the University of California.
* Copyright (c) 1995-1996 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include "tclPort.h"
/*
* This array is designed for mapping upper and lower case letter together for
* a case independent comparison. The mappings are based upon ASCII character
* sequences.
*/
static const unsigned char charmap[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
0xc0, 0xe1, 0xe2, 0xe3, 0xe4, 0xc5, 0xe6, 0xe7,
0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
0xf8, 0xf9, 0xfa, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
};
/*
* Here are the prototypes just in case they are not included in tclPort.h.
*/
int strncasecmp(const char *s1, const char *s2, size_t n);
int strcasecmp(const char *s1, const char *s2);
/*
*----------------------------------------------------------------------
*
* strcasecmp --
*
* Compares two strings, ignoring case differences.
*
* Results:
* Compares two null-terminated strings s1 and s2, returning -1, 0, or 1
* if s1 is lexicographically less than, equal to, or greater than s2.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
strcasecmp(
const char *s1, /* First string. */
const char *s2) /* Second string. */
{
unsigned char u1, u2;
for ( ; ; s1++, s2++) {
u1 = (unsigned char) *s1;
u2 = (unsigned char) *s2;
if ((u1 == '\0') || (charmap[u1] != charmap[u2])) {
break;
}
}
return charmap[u1] - charmap[u2];
}
/*
*----------------------------------------------------------------------
*
* strncasecmp --
*
* Compares two strings, ignoring case differences.
*
* Results:
* Compares up to length chars of s1 and s2, returning -1, 0, or 1 if s1
* is lexicographically less than, equal to, or greater than s2 over
* those characters.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
strncasecmp(
const char *s1, /* First string. */
const char *s2, /* Second string. */
size_t length) /* Maximum number of characters to compare
* (stop earlier if the end of either string
* is reached). */
{
unsigned char u1, u2;
for (; length != 0; length--, s1++, s2++) {
u1 = (unsigned char) *s1;
u2 = (unsigned char) *s2;
if (charmap[u1] != charmap[u2]) {
return charmap[u1] - charmap[u2];
}
if (u1 == '\0') {
return 0;
}
}
return 0;
}
|
