blob: e129af471b0700e74954fc5b5e2d58d88e821553 (
plain)
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
|
/*
wctrans.c
7.25.3.2 Extensible wide-character case mapping functions
Contributed by: Danny Smith <dannysmith@usesr.sourcefoge.net>
2005-02-24
This source code is placed in the PUBLIC DOMAIN. It is modified
from the Q8 package created by Doug Gwyn <gwyn@arl.mil>
*/
#include <string.h>
#include <wctype.h>
/*
This differs from the MS implementation of wctrans which
returns 0 for tolower and 1 for toupper. According to
C99, a 0 return value indicates invalid input.
These two function go in the same translation unit so that we
can ensure that
towctrans(wc, wctrans("tolower")) == towlower(wc)
towctrans(wc, wctrans("toupper")) == towupper(wc)
It also ensures that
towctrans(wc, wctrans("")) == wc
which is not required by standard.
*/
static const struct {
const char *name;
wctrans_t val; } tmap[] = {
{"tolower", _LOWER},
{"toupper", _UPPER}
};
#define NTMAP (sizeof tmap / sizeof tmap[0])
wctrans_t
wctrans (const char* property)
{
int i;
for ( i = 0; i < NTMAP; ++i )
if (strcmp (property, tmap[i].name) == 0)
return tmap[i].val;
return 0;
}
wint_t towctrans (wint_t wc, wctrans_t desc)
{
switch (desc)
{
case _LOWER:
return towlower (wc);
case _UPPER:
return towupper (wc);
default:
return wc;
}
}
|
