1 /* Copyright (C) 1995-1998, 2000-2001, 2003, 2005 Free Software Foundation, Inc. 2 Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. 3 4 This program is free software; you can redistribute it and/or modify it 5 under the terms of the GNU Library General Public License as published 6 by the Free Software Foundation; either version 2, or (at your option) 7 any later version. 8 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 GNU 12 Library General Public License for more details. 13 14 You should have received a copy of the GNU Library General Public 15 License along with this program; if not, write to the Free Software 16 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 17 USA. */ 18 19 #ifdef HAVE_CONFIG_H 20 # include <config.h> 21 #endif 22 23 #include <stdlib.h> 24 #include <string.h> 25 #include <sys/types.h> 26 27 #include "loadinfo.h" 28 29 /* On some strange systems still no definition of NULL is found. Sigh! */ 30 #ifndef NULL 31 # if defined __STDC__ && __STDC__ 32 # define NULL ((void *) 0) 33 # else 34 # define NULL 0 35 # endif 36 #endif 37 38 /* @@ end of prolog @@ */ 39 40 /* Split a locale name NAME into a leading language part and all the 41 rest. Return a pointer to the first character after the language, 42 i.e. to the first byte of the rest. */ 43 static char *_nl_find_language (const char *name); 44 45 static char * 46 _nl_find_language (const char *name) 47 { 48 while (name[0] != '\0' && name[0] != '_' && name[0] != '@' && name[0] != '.') 49 ++name; 50 51 return (char *) name; 52 } 53 54 55 int 56 _nl_explode_name (char *name, 57 const char **language, const char **modifier, 58 const char **territory, const char **codeset, 59 const char **normalized_codeset) 60 { 61 char *cp; 62 int mask; 63 64 *modifier = NULL; 65 *territory = NULL; 66 *codeset = NULL; 67 *normalized_codeset = NULL; 68 69 /* Now we determine the single parts of the locale name. First 70 look for the language. Termination symbols are `_', '.', and `@'. */ 71 mask = 0; 72 *language = cp = name; 73 cp = _nl_find_language (*language); 74 75 if (*language == cp) 76 /* This does not make sense: language has to be specified. Use 77 this entry as it is without exploding. Perhaps it is an alias. */ 78 cp = strchr (*language, '\0'); 79 else 80 { 81 if (cp[0] == '_') 82 { 83 /* Next is the territory. */ 84 cp[0] = '\0'; 85 *territory = ++cp; 86 87 while (cp[0] != '\0' && cp[0] != '.' && cp[0] != '@') 88 ++cp; 89 90 mask |= XPG_TERRITORY; 91 } 92 93 if (cp[0] == '.') 94 { 95 /* Next is the codeset. */ 96 cp[0] = '\0'; 97 *codeset = ++cp; 98 99 while (cp[0] != '\0' && cp[0] != '@') 100 ++cp; 101 102 mask |= XPG_CODESET; 103 104 if (*codeset != cp && (*codeset)[0] != '\0') 105 { 106 *normalized_codeset = _nl_normalize_codeset (*codeset, 107 cp - *codeset); 108 if (strcmp (*codeset, *normalized_codeset) == 0) 109 free ((char *) *normalized_codeset); 110 else 111 mask |= XPG_NORM_CODESET; 112 } 113 } 114 } 115 116 if (cp[0] == '@') 117 { 118 /* Next is the modifier. */ 119 cp[0] = '\0'; 120 *modifier = ++cp; 121 122 if (cp[0] != '\0') 123 mask |= XPG_MODIFIER; 124 } 125 126 if (*territory != NULL && (*territory)[0] == '\0') 127 mask &= ~XPG_TERRITORY; 128 129 if (*codeset != NULL && (*codeset)[0] == '\0') 130 mask &= ~XPG_CODESET; 131 132 return mask; 133 } 134