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[glibc.git] / intl / explodename.c
blobf7bcfa5ff66f5a0d2b5d45f9424ba66ce66b01d1
1 /* Copyright (C) 1995-2002, 2003 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the 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 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #ifdef HAVE_CONFIG_H
21 # include <config.h>
22 #endif
24 #include <stdlib.h>
25 #include <string.h>
26 #include <sys/types.h>
28 #include "loadinfo.h"
30 /* On some strange systems still no definition of NULL is found. Sigh! */
31 #ifndef NULL
32 # if defined __STDC__ && __STDC__
33 # define NULL ((void *) 0)
34 # else
35 # define NULL 0
36 # endif
37 #endif
39 /* @@ end of prolog @@ */
41 static char *_nl_find_language PARAMS ((const char *name));
43 static char *
44 _nl_find_language (name)
45 const char *name;
47 while (name[0] != '\0' && name[0] != '_' && name[0] != '@' && name[0] != '.')
48 ++name;
50 return (char *) name;
54 int
55 _nl_explode_name (name, language, modifier, territory, codeset,
56 normalized_codeset)
57 char *name;
58 const char **language;
59 const char **modifier;
60 const char **territory;
61 const char **codeset;
62 const char **normalized_codeset;
64 char *cp;
65 int mask;
67 *modifier = NULL;
68 *territory = NULL;
69 *codeset = NULL;
70 *normalized_codeset = NULL;
72 /* Now we determine the single parts of the locale name. First
73 look for the language. Termination symbols are `_', '.', and `@'. */
74 mask = 0;
75 *language = cp = name;
76 cp = _nl_find_language (*language);
78 if (*language == cp)
79 /* This does not make sense: language has to be specified. Use
80 this entry as it is without exploding. Perhaps it is an alias. */
81 cp = strchr (*language, '\0');
82 else if (cp[0] != '@')
84 if (cp[0] == '_')
86 /* Next is the territory. */
87 cp[0] = '\0';
88 *territory = ++cp;
90 while (cp[0] != '\0' && cp[0] != '.' && cp[0] != '@')
91 ++cp;
93 mask |= XPG_TERRITORY;
96 if (cp[0] == '.')
98 /* Next is the codeset. */
99 cp[0] = '\0';
100 *codeset = ++cp;
102 while (cp[0] != '\0' && cp[0] != '@')
103 ++cp;
105 mask |= XPG_CODESET;
107 if (*codeset != cp && (*codeset)[0] != '\0')
109 *normalized_codeset = _nl_normalize_codeset (*codeset,
110 cp - *codeset);
111 if (strcmp (*codeset, *normalized_codeset) == 0)
112 free ((char *) *normalized_codeset);
113 else
114 mask |= XPG_NORM_CODESET;
119 if (cp[0] == '@')
121 /* Next is the modifier. */
122 cp[0] = '\0';
123 *modifier = ++cp;
125 if (cp[0] != '\0')
126 mask |= XPG_MODIFIER;
129 if (*territory != NULL && (*territory)[0] == '\0')
130 mask &= ~XPG_TERRITORY;
132 if (*codeset != NULL && (*codeset)[0] == '\0')
133 mask &= ~XPG_CODESET;
135 return mask;