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1 /* Copyright (C) 1996-1999, 2000-2002 Free Software Foundation, Inc.
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2 This file is part of the GNU C Library.
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3 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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4
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5 This program is free software; you can redistribute it and/or modify it
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6 under the terms of the GNU Library General Public License as published
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7 by the Free Software Foundation; either version 2, or (at your option)
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8 any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this program; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
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18 USA. */
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19
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20 #ifndef _LOADINFO_H
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21 #define _LOADINFO_H 1
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22
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23 /* Declarations of locale dependent catalog lookup functions.
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24 Implemented in
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25
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26 localealias.c Possibly replace a locale name by another.
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27 explodename.c Split a locale name into its various fields.
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28 l10nflist.c Generate a list of filenames of possible message catalogs.
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29 finddomain.c Find and open the relevant message catalogs.
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30
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31 The main function _nl_find_domain() in finddomain.c is declared
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32 in gettextP.h.
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33 */
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34
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35 #ifndef PARAMS
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36 # if __STDC__ || defined __GNUC__ || defined __SUNPRO_C || defined __cplusplus || __PROTOTYPES
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37 # define PARAMS(args) args
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38 # else
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39 # define PARAMS(args) ()
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40 # endif
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41 #endif
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42
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43 #ifndef internal_function
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44 # define internal_function
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45 #endif
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46
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47 /* Tell the compiler when a conditional or integer expression is
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48 almost always true or almost always false. */
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49 #ifndef HAVE_BUILTIN_EXPECT
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50 # define __builtin_expect(expr, val) (expr)
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51 #endif
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52
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53 /* Separator in PATH like lists of pathnames. */
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54 #if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
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55 /* Win32, OS/2, DOS */
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56 # define PATH_SEPARATOR ';'
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57 #else
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58 /* Unix */
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59 # define PATH_SEPARATOR ':'
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60 #endif
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61
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62 /* Encoding of locale name parts. */
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63 #define CEN_REVISION 1
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64 #define CEN_SPONSOR 2
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65 #define CEN_SPECIAL 4
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66 #define XPG_NORM_CODESET 8
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67 #define XPG_CODESET 16
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68 #define TERRITORY 32
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69 #define CEN_AUDIENCE 64
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70 #define XPG_MODIFIER 128
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71
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72 #define CEN_SPECIFIC (CEN_REVISION|CEN_SPONSOR|CEN_SPECIAL|CEN_AUDIENCE)
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73 #define XPG_SPECIFIC (XPG_CODESET|XPG_NORM_CODESET|XPG_MODIFIER)
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74
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75
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76 struct loaded_l10nfile
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77 {
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78 const char *filename;
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79 int decided;
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80
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81 const void *data;
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82
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83 struct loaded_l10nfile *next;
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84 struct loaded_l10nfile *successor[1];
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85 };
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86
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87
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88 /* Normalize codeset name. There is no standard for the codeset
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89 names. Normalization allows the user to use any of the common
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90 names. The return value is dynamically allocated and has to be
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91 freed by the caller. */
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92 extern const char *_nl_normalize_codeset PARAMS ((const char *codeset,
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93 size_t name_len));
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94
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95 /* Lookup a locale dependent file.
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96 *L10NFILE_LIST denotes a pool of lookup results of locale dependent
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97 files of the same kind, sorted in decreasing order of ->filename.
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98 DIRLIST and DIRLIST_LEN are an argz list of directories in which to
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99 look, containing at least one directory (i.e. DIRLIST_LEN > 0).
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100 MASK, LANGUAGE, TERRITORY, CODESET, NORMALIZED_CODESET, MODIFIER,
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101 SPECIAL, SPONSOR, REVISION are the pieces of the locale name, as
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102 produced by _nl_explode_name(). FILENAME is the filename suffix.
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103 The return value is the lookup result, either found in *L10NFILE_LIST,
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104 or - if DO_ALLOCATE is nonzero - freshly allocated, or possibly NULL.
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105 If the return value is non-NULL, it is added to *L10NFILE_LIST, and
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106 its ->next field denotes the chaining inside *L10NFILE_LIST, and
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107 furthermore its ->successor[] field contains a list of other lookup
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108 results from which this lookup result inherits. */
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109 extern struct loaded_l10nfile *
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110 _nl_make_l10nflist PARAMS ((struct loaded_l10nfile **l10nfile_list,
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111 const char *dirlist, size_t dirlist_len, int mask,
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112 const char *language, const char *territory,
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113 const char *codeset,
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114 const char *normalized_codeset,
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115 const char *modifier, const char *special,
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116 const char *sponsor, const char *revision,
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117 const char *filename, int do_allocate));
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118
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119 /* Lookup the real locale name for a locale alias NAME, or NULL if
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120 NAME is not a locale alias (but possibly a real locale name).
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121 The return value is statically allocated and must not be freed. */
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122 extern const char *_nl_expand_alias PARAMS ((const char *name));
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123
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124 /* Split a locale name NAME into its pieces: language, modifier,
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125 territory, codeset, special, sponsor, revision.
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126 NAME gets destructively modified: NUL bytes are inserted here and
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127 there. *LANGUAGE gets assigned NAME. Each of *MODIFIER, *TERRITORY,
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128 *CODESET, *SPECIAL, *SPONSOR, *REVISION gets assigned either a
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129 pointer into the old NAME string, or NULL. *NORMALIZED_CODESET
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130 gets assigned the expanded *CODESET, if it is different from *CODESET;
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131 this one is dynamically allocated and has to be freed by the caller.
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132 The return value is a bitmask, where each bit corresponds to one
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133 filled-in value:
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134 XPG_MODIFIER, CEN_AUDIENCE for *MODIFIER,
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135 TERRITORY for *TERRITORY,
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136 XPG_CODESET for *CODESET,
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137 XPG_NORM_CODESET for *NORMALIZED_CODESET,
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138 CEN_SPECIAL for *SPECIAL,
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139 CEN_SPONSOR for *SPONSOR,
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140 CEN_REVISION for *REVISION.
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141 */
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142 extern int _nl_explode_name PARAMS ((char *name, const char **language,
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143 const char **modifier,
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144 const char **territory,
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145 const char **codeset,
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146 const char **normalized_codeset,
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147 const char **special,
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148 const char **sponsor,
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149 const char **revision));
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150
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151 /* Split a locale name NAME into a leading language part and all the
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152 rest. Return a pointer to the first character after the language,
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153 i.e. to the first byte of the rest. */
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154 extern char *_nl_find_language PARAMS ((const char *name));
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155
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156 #endif /* loadinfo.h */
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