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[glibc.git] / wctype / wctrans.c
blob3f823e56a81313f6bafbe67cc658c63c3fa96565
1 /* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
20 #include <ctype.h>
21 #include <string.h>
22 #include <wctype.h>
23 #include "../locale/localeinfo.h"
25 wctrans_t
26 wctrans (const char *property)
28 const char *names;
29 size_t cnt;
30 unsigned int **result;
32 names = _NL_CURRENT (LC_CTYPE, _NL_CTYPE_MAP_NAMES);
33 cnt = 0;
34 while (names[0] != '\0')
36 if (strcmp (property, names) == 0)
37 break;
39 names = strchr (names, '\0') + 1;
40 ++cnt;
43 if (names[0] == '\0')
44 return 0;
46 if (cnt == 0)
47 return (wctrans_t) __ctype_toupper;
48 else if (cnt == 1)
49 return (wctrans_t) __ctype_tolower;
51 /* We have to search the table. */
52 result = (unsigned int **) &_NL_CURRENT (LC_CTYPE, _NL_CTYPE_WIDTH);
54 #if __BYTE_ORDER == _BIG_ENDIAN
55 return (wctrans_t) result[1 + 2 * cnt];
56 #else
57 return (wctrans_t) result[1 + 2 * cnt + 1];
58 #endif