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
|
/* Test whether case matters for a Unicode string.
Copyright (C) 2009-2010 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2009.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
int
FUNC (const UNIT *s, size_t n, const char *iso639_language,
bool *resultp)
{
UNIT normsbuf[2048 / sizeof (UNIT)];
UNIT *norms;
size_t norms_length;
UNIT mappedbuf[2048 / sizeof (UNIT)];
UNIT *mapped_toupper;
UNIT *mapped_tolower;
UNIT *mapped_totitle;
size_t mapped_length;
/* Apply canonical decomposition to S. */
norms_length = sizeof (normsbuf) / sizeof (UNIT);
norms = U_NORMALIZE (UNINORM_NFD, s, n, normsbuf, &norms_length);
if (norms == NULL)
/* errno is set here. */
return -1;
mapped_length = sizeof (mappedbuf) / sizeof (UNIT);
/* Apply toupper mapping. */
mapped_toupper = U_TOUPPER (norms, norms_length, iso639_language, NULL,
mappedbuf, &mapped_length);
if (mapped_toupper == NULL)
goto fail;
/* Compare. */
if (!(mapped_length == norms_length
&& U_CMP (mapped_toupper, norms, norms_length) == 0))
{
if (mapped_toupper != mappedbuf)
free (mapped_toupper);
goto yes;
}
/* Apply tolower mapping. */
mapped_tolower = U_TOLOWER (norms, norms_length, iso639_language, NULL,
mapped_toupper, &mapped_length);
if (mapped_tolower == NULL)
{
if (mapped_toupper != mappedbuf)
{
int saved_errno = errno;
free (mapped_toupper);
errno = saved_errno;
}
goto fail;
}
if (mapped_toupper != mapped_tolower && mapped_toupper != mappedbuf)
free (mapped_toupper);
/* Compare. */
if (!(mapped_length == norms_length
&& U_CMP (mapped_tolower, norms, norms_length) == 0))
{
if (mapped_tolower != mappedbuf)
free (mapped_tolower);
goto yes;
}
/* Apply totitle mapping. */
mapped_totitle = U_TOTITLE (norms, norms_length, iso639_language, NULL,
mapped_tolower, &mapped_length);
if (mapped_totitle == NULL)
{
if (mapped_tolower != mappedbuf)
{
int saved_errno = errno;
free (mapped_tolower);
errno = saved_errno;
}
goto fail;
}
if (mapped_tolower != mapped_totitle && mapped_tolower != mappedbuf)
free (mapped_tolower);
/* Compare. */
if (!(mapped_length == norms_length
&& U_CMP (mapped_totitle, norms, norms_length) == 0))
{
if (mapped_totitle != mappedbuf)
free (mapped_totitle);
goto yes;
}
if (mapped_totitle != mappedbuf)
free (mapped_totitle);
if (norms != normsbuf)
free (norms);
*resultp = false;
return 0;
yes:
if (norms != normsbuf)
free (norms);
*resultp = true;
return 0;
fail:
if (norms != normsbuf)
{
int saved_errno = errno;
free (norms);
errno = saved_errno;
}
return -1;
}
|
