merge from gcc
[binutils.git] / intl / explodename.c
blob8066dc29962f378d782cc6422cab33bd91a9cbca
1 /* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
2 Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
7 any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
18 #ifdef HAVE_CONFIG_H
19 # include <config.h>
20 #endif
22 #if defined STDC_HEADERS || defined _LIBC
23 # include <stdlib.h>
24 #endif
26 #if defined HAVE_STRING_H || defined _LIBC
27 # include <string.h>
28 #else
29 # include <strings.h>
30 #endif
31 #include <sys/types.h>
33 #include "loadinfo.h"
35 /* On some strange systems still no definition of NULL is found. Sigh! */
36 #ifndef NULL
37 # if defined __STDC__ && __STDC__
38 # define NULL ((void *) 0)
39 # else
40 # define NULL 0
41 # endif
42 #endif
44 /* @@ end of prolog @@ */
46 int
47 _nl_explode_name (name, language, modifier, territory, codeset,
48 normalized_codeset, special, sponsor, revision)
49 char *name;
50 const char **language;
51 const char **modifier;
52 const char **territory;
53 const char **codeset;
54 const char **normalized_codeset;
55 const char **special;
56 const char **sponsor;
57 const char **revision;
59 enum { undecided, xpg, cen } syntax;
60 char *cp;
61 int mask;
63 *modifier = NULL;
64 *territory = NULL;
65 *codeset = NULL;
66 *normalized_codeset = NULL;
67 *special = NULL;
68 *sponsor = NULL;
69 *revision = NULL;
71 /* Now we determine the single parts of the locale name. First
72 look for the language. Termination symbols are `_' and `@' if
73 we use XPG4 style, and `_', `+', and `,' if we use CEN syntax. */
74 mask = 0;
75 syntax = undecided;
76 *language = cp = name;
77 while (cp[0] != '\0' && cp[0] != '_' && cp[0] != '@'
78 && cp[0] != '+' && cp[0] != ',')
79 ++cp;
81 if (*language == cp)
82 /* This does not make sense: language has to be specified. Use
83 this entry as it is without exploding. Perhaps it is an alias. */
84 cp = strchr (*language, '\0');
85 else if (cp[0] == '_')
87 /* Next is the territory. */
88 cp[0] = '\0';
89 *territory = ++cp;
91 while (cp[0] != '\0' && cp[0] != '.' && cp[0] != '@'
92 && cp[0] != '+' && cp[0] != ',' && cp[0] != '_')
93 ++cp;
95 mask |= TERRITORY;
97 if (cp[0] == '.')
99 /* Next is the codeset. */
100 syntax = xpg;
101 cp[0] = '\0';
102 *codeset = ++cp;
104 while (cp[0] != '\0' && cp[0] != '@')
105 ++cp;
107 mask |= XPG_CODESET;
109 if (*codeset != cp && (*codeset)[0] != '\0')
111 *normalized_codeset = _nl_normalize_codeset (*codeset,
112 cp - *codeset);
113 if (strcmp (*codeset, *normalized_codeset) == 0)
114 free ((char *) *normalized_codeset);
115 else
116 mask |= XPG_NORM_CODESET;
121 if (cp[0] == '@' || (syntax != xpg && cp[0] == '+'))
123 /* Next is the modifier. */
124 syntax = cp[0] == '@' ? xpg : cen;
125 cp[0] = '\0';
126 *modifier = ++cp;
128 while (syntax == cen && cp[0] != '\0' && cp[0] != '+'
129 && cp[0] != ',' && cp[0] != '_')
130 ++cp;
132 mask |= XPG_MODIFIER | CEN_AUDIENCE;
135 if (syntax != xpg && (cp[0] == '+' || cp[0] == ',' || cp[0] == '_'))
137 syntax = cen;
139 if (cp[0] == '+')
141 /* Next is special application (CEN syntax). */
142 cp[0] = '\0';
143 *special = ++cp;
145 while (cp[0] != '\0' && cp[0] != ',' && cp[0] != '_')
146 ++cp;
148 mask |= CEN_SPECIAL;
151 if (cp[0] == ',')
153 /* Next is sponsor (CEN syntax). */
154 cp[0] = '\0';
155 *sponsor = ++cp;
157 while (cp[0] != '\0' && cp[0] != '_')
158 ++cp;
160 mask |= CEN_SPONSOR;
163 if (cp[0] == '_')
165 /* Next is revision (CEN syntax). */
166 cp[0] = '\0';
167 *revision = ++cp;
169 mask |= CEN_REVISION;
173 /* For CEN syntax values it might be important to have the
174 separator character in the file name, not for XPG syntax. */
175 if (syntax == xpg)
177 if (*territory != NULL && (*territory)[0] == '\0')
178 mask &= ~TERRITORY;
180 if (*codeset != NULL && (*codeset)[0] == '\0')
181 mask &= ~XPG_CODESET;
183 if (*modifier != NULL && (*modifier)[0] == '\0')
184 mask &= ~XPG_MODIFIER;
187 return mask;