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1 /* Copyright (C) 1995-1998, 2000, 2001 Free Software Foundation, Inc.
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2 Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
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3
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4 This program is free software; you can redistribute it and/or modify it
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5 under the terms of the GNU Library General Public License as published
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6 by the Free Software Foundation; either version 2, or (at your option)
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7 any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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12 Library General Public License for more details.
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13
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14 You should have received a copy of the GNU Library General Public
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15 License along with this program; if not, write to the Free Software
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16 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
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17 USA. */
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18
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19 #ifdef HAVE_CONFIG_H
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20 # include <config.h>
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21 #endif
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22
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23 #include <stdlib.h>
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24 #include <string.h>
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25 #include <sys/types.h>
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26
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27 #include "loadinfo.h"
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28
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29 /* On some strange systems still no definition of NULL is found. Sigh! */
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30 #ifndef NULL
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31 # if defined __STDC__ && __STDC__
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32 # define NULL ((void *) 0)
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33 # else
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34 # define NULL 0
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35 # endif
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36 #endif
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37
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38 /* @@ end of prolog @@ */
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39
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40 char *
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41 _nl_find_language (name)
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42 const char *name;
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43 {
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44 while (name[0] != '\0' && name[0] != '_' && name[0] != '@'
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45 && name[0] != '+' && name[0] != ',')
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46 ++name;
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47
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48 return (char *) name;
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49 }
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50
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51
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52 int
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53 _nl_explode_name (name, language, modifier, territory, codeset,
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54 normalized_codeset, special, sponsor, revision)
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55 char *name;
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56 const char **language;
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57 const char **modifier;
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58 const char **territory;
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59 const char **codeset;
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60 const char **normalized_codeset;
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61 const char **special;
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62 const char **sponsor;
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63 const char **revision;
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64 {
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65 enum { undecided, xpg, cen } syntax;
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66 char *cp;
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67 int mask;
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68
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69 *modifier = NULL;
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70 *territory = NULL;
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71 *codeset = NULL;
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72 *normalized_codeset = NULL;
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73 *special = NULL;
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74 *sponsor = NULL;
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75 *revision = NULL;
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76
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77 /* Now we determine the single parts of the locale name. First
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78 look for the language. Termination symbols are `_' and `@' if
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79 we use XPG4 style, and `_', `+', and `,' if we use CEN syntax. */
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80 mask = 0;
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81 syntax = undecided;
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82 *language = cp = name;
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83 cp = _nl_find_language (*language);
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84
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85 if (*language == cp)
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86 /* This does not make sense: language has to be specified. Use
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87 this entry as it is without exploding. Perhaps it is an alias. */
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88 cp = strchr (*language, '\0');
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89 else if (cp[0] == '_')
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90 {
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91 /* Next is the territory. */
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92 cp[0] = '\0';
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93 *territory = ++cp;
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94
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95 while (cp[0] != '\0' && cp[0] != '.' && cp[0] != '@'
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96 && cp[0] != '+' && cp[0] != ',' && cp[0] != '_')
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97 ++cp;
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98
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99 mask |= TERRITORY;
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100
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101 if (cp[0] == '.')
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102 {
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103 /* Next is the codeset. */
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104 syntax = xpg;
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105 cp[0] = '\0';
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106 *codeset = ++cp;
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107
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108 while (cp[0] != '\0' && cp[0] != '@')
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109 ++cp;
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110
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111 mask |= XPG_CODESET;
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112
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113 if (*codeset != cp && (*codeset)[0] != '\0')
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114 {
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115 *normalized_codeset = _nl_normalize_codeset (*codeset,
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116 cp - *codeset);
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117 if (strcmp (*codeset, *normalized_codeset) == 0)
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118 free ((char *) *normalized_codeset);
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119 else
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120 mask |= XPG_NORM_CODESET;
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121 }
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122 }
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123 }
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124
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125 if (cp[0] == '@' || (syntax != xpg && cp[0] == '+'))
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126 {
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127 /* Next is the modifier. */
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128 syntax = cp[0] == '@' ? xpg : cen;
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129 cp[0] = '\0';
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130 *modifier = ++cp;
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131
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132 while (syntax == cen && cp[0] != '\0' && cp[0] != '+'
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133 && cp[0] != ',' && cp[0] != '_')
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134 ++cp;
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135
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136 mask |= XPG_MODIFIER | CEN_AUDIENCE;
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137 }
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138
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139 if (syntax != xpg && (cp[0] == '+' || cp[0] == ',' || cp[0] == '_'))
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140 {
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141 syntax = cen;
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142
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143 if (cp[0] == '+')
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144 {
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145 /* Next is special application (CEN syntax). */
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146 cp[0] = '\0';
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147 *special = ++cp;
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148
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149 while (cp[0] != '\0' && cp[0] != ',' && cp[0] != '_')
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150 ++cp;
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151
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152 mask |= CEN_SPECIAL;
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153 }
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154
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155 if (cp[0] == ',')
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156 {
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157 /* Next is sponsor (CEN syntax). */
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158 cp[0] = '\0';
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159 *sponsor = ++cp;
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160
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161 while (cp[0] != '\0' && cp[0] != '_')
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162 ++cp;
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163
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164 mask |= CEN_SPONSOR;
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165 }
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166
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167 if (cp[0] == '_')
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168 {
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169 /* Next is revision (CEN syntax). */
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170 cp[0] = '\0';
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171 *revision = ++cp;
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172
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173 mask |= CEN_REVISION;
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174 }
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175 }
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176
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177 /* For CEN syntax values it might be important to have the
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178 separator character in the file name, not for XPG syntax. */
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179 if (syntax == xpg)
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180 {
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181 if (*territory != NULL && (*territory)[0] == '\0')
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182 mask &= ~TERRITORY;
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183
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184 if (*codeset != NULL && (*codeset)[0] == '\0')
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185 mask &= ~XPG_CODESET;
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186
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187 if (*modifier != NULL && (*modifier)[0] == '\0')
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188 mask &= ~XPG_MODIFIER;
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189 }
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190
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191 return mask;
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192 }
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