intl/gettextP.h

   1 /* Header describing internals of libintl library.
   2    Copyright (C) 1995-1999, 2000-2005 Free Software Foundation, Inc.
   3    Written by Ulrich Drepper <drepper@cygnus.com>, 1995.
   4
   5    This program is free software; you can redistribute it and/or modify it
   6    under the terms of the GNU Library General Public License as published
   7    by the Free Software Foundation; either version 2, or (at your option)
   8    any later version.
   9
  10    This program 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    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with this program; if not, write to the Free Software
  17    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  18    USA.  */
  19
  20 #ifndef _GETTEXTP_H
  21 #define _GETTEXTP_H
  22
  23 #include <stddef.h>             /* Get size_t.  */
  24
  25 #ifdef _LIBC
  26 # include "../iconv/gconv_int.h"
  27 #else
  28 # if HAVE_ICONV
  29 #  include <iconv.h>
  30 # endif
  31 #endif
  32
  33 #ifdef _LIBC
  34 extern char *__gettext (const char *__msgid);
  35 extern char *__dgettext (const char *__domainname, const char *__msgid);
  36 extern char *__dcgettext (const char *__domainname, const char *__msgid,
  37                           int __category);
  38 extern char *__ngettext (const char *__msgid1, const char *__msgid2,
  39                          unsigned long int __n);
  40 extern char *__dngettext (const char *__domainname,
  41                           const char *__msgid1, const char *__msgid2,
  42                           unsigned long int n);
  43 extern char *__dcngettext (const char *__domainname,
  44                            const char *__msgid1, const char *__msgid2,
  45                            unsigned long int __n, int __category);
  46 extern char *__dcigettext (const char *__domainname,
  47                            const char *__msgid1, const char *__msgid2,
  48                            int __plural, unsigned long int __n,
  49                            int __category);
  50 extern char *__textdomain (const char *__domainname);
  51 extern char *__bindtextdomain (const char *__domainname,
  52                                const char *__dirname);
  53 extern char *__bind_textdomain_codeset (const char *__domainname,
  54                                         const char *__codeset);
  55 extern void _nl_finddomain_subfreeres (void) attribute_hidden;
  56 extern void _nl_unload_domain (struct loaded_domain *__domain)
  57      internal_function attribute_hidden;
  58 #else
  59 /* Declare the exported libintl_* functions, in a way that allows us to
  60    call them under their real name.  */
  61 # undef _INTL_REDIRECT_INLINE
  62 # undef _INTL_REDIRECT_MACROS
  63 # define _INTL_REDIRECT_MACROS
  64 # include "libgnuintl.h"
  65 # ifdef IN_LIBGLOCALE
  66 extern char *gl_dcigettext (const char *__domainname,
  67                             const char *__msgid1, const char *__msgid2,
  68                             int __plural, unsigned long int __n,
  69                             int __category,
  70                             const char *__localename, const char *__encoding);
  71 # else
  72 extern char *libintl_dcigettext (const char *__domainname,
  73                                  const char *__msgid1, const char *__msgid2,
  74                                  int __plural, unsigned long int __n,
  75                                  int __category);
  76 # endif
  77 #endif
  78
  79 #include "loadinfo.h"
  80
  81 #include "gmo.h"                /* Get nls_uint32.  */
  82
  83 /* @@ end of prolog @@ */
  84
  85 #ifndef internal_function
  86 # define internal_function
  87 #endif
  88
  89 #ifndef attribute_hidden
  90 # define attribute_hidden
  91 #endif
  92
  93 /* Tell the compiler when a conditional or integer expression is
  94    almost always true or almost always false.  */
  95 #ifndef HAVE_BUILTIN_EXPECT
  96 # define __builtin_expect(expr, val) (expr)
  97 #endif
  98
  99 #ifndef W
 100 # define W(flag, data) ((flag) ? SWAP (data) : (data))
 101 #endif
 102
 103
 104 #ifdef _LIBC
 105 # include <byteswap.h>
 106 # define SWAP(i) bswap_32 (i)
 107 #else
 108 static inline nls_uint32
 109 SWAP (i)
 110      nls_uint32 i;
 111 {
 112   return (i << 24) | ((i & 0xff00) << 8) | ((i >> 8) & 0xff00) | (i >> 24);
 113 }
 114 #endif
 115
 116
 117 /* In-memory representation of system dependent string.  */
 118 struct sysdep_string_desc
 119 {
 120   /* Length of addressed string, including the trailing NUL.  */
 121   size_t length;
 122   /* Pointer to addressed string.  */
 123   const char *pointer;
 124 };
 125
 126 /* Cache of translated strings after charset conversion.
 127    Note: The strings are converted to the target encoding only on an as-needed
 128    basis.  */
 129 struct converted_domain
 130 {
 131   /* The target encoding name.  */
 132   const char *encoding;
 133   /* The descriptor for conversion from the message catalog's encoding to
 134      this target encoding.  */
 135 #ifdef _LIBC
 136   __gconv_t conv;
 137 #else
 138 # if HAVE_ICONV
 139   iconv_t conv;
 140 # endif
 141 #endif
 142   /* The table of translated strings after charset conversion.  */
 143   char **conv_tab;
 144 };
 145
 146 /* The representation of an opened message catalog.  */
 147 struct loaded_domain
 148 {
 149   /* Pointer to memory containing the .mo file.  */
 150   const char *data;
 151   /* 1 if the memory is mmap()ed, 0 if the memory is malloc()ed.  */
 152   int use_mmap;
 153   /* Size of mmap()ed memory.  */
 154   size_t mmap_size;
 155   /* 1 if the .mo file uses a different endianness than this machine.  */
 156   int must_swap;
 157   /* Pointer to additional malloc()ed memory.  */
 158   void *malloced;
 159
 160   /* Number of static strings pairs.  */
 161   nls_uint32 nstrings;
 162   /* Pointer to descriptors of original strings in the file.  */
 163   const struct string_desc *orig_tab;
 164   /* Pointer to descriptors of translated strings in the file.  */
 165   const struct string_desc *trans_tab;
 166
 167   /* Number of system dependent strings pairs.  */
 168   nls_uint32 n_sysdep_strings;
 169   /* Pointer to descriptors of original sysdep strings.  */
 170   const struct sysdep_string_desc *orig_sysdep_tab;
 171   /* Pointer to descriptors of translated sysdep strings.  */
 172   const struct sysdep_string_desc *trans_sysdep_tab;
 173
 174   /* Size of hash table.  */
 175   nls_uint32 hash_size;
 176   /* Pointer to hash table.  */
 177   const nls_uint32 *hash_tab;
 178   /* 1 if the hash table uses a different endianness than this machine.  */
 179   int must_swap_hash_tab;
 180
 181   /* Cache of charset conversions of the translated strings.  */
 182   struct converted_domain *conversions;
 183   size_t nconversions;
 184
 185   struct expression *plural;
 186   unsigned long int nplurals;
 187 };
 188
 189 /* We want to allocate a string at the end of the struct.  But ISO C
 190    doesn't allow zero sized arrays.  */
 191 #ifdef __GNUC__
 192 # define ZERO 0
 193 #else
 194 # define ZERO 1
 195 #endif
 196
 197 /* A set of settings bound to a message domain.  Used to store settings
 198    from bindtextdomain() and bind_textdomain_codeset().  */
 199 struct binding
 200 {
 201   struct binding *next;
 202   char *dirname;
 203   char *codeset;
 204   char domainname[ZERO];
 205 };
 206
 207 /* A counter which is incremented each time some previous translations
 208    become invalid.
 209    This variable is part of the external ABI of the GNU libintl.  */
 210 #ifdef IN_LIBGLOCALE
 211 # include <glocale/config.h>
 212 extern LIBGLOCALE_DLL_EXPORTED int _nl_msg_cat_cntr;
 213 #else
 214 extern LIBINTL_DLL_EXPORTED int _nl_msg_cat_cntr;
 215 #endif
 216
 217 #ifndef _LIBC
 218 const char *_nl_language_preferences_default (void);
 219 const char *_nl_locale_name_posix (int category, const char *categoryname);
 220 const char *_nl_locale_name_default (void);
 221 const char *_nl_locale_name (int category, const char *categoryname);
 222 #endif
 223
 224 struct loaded_l10nfile *_nl_find_domain (const char *__dirname, char *__locale,
 225                                          const char *__domainname,
 226                                          struct binding *__domainbinding)
 227      internal_function;
 228 void _nl_load_domain (struct loaded_l10nfile *__domain,
 229                       struct binding *__domainbinding)
 230      internal_function;
 231
 232 #ifdef IN_LIBGLOCALE
 233 char *_nl_find_msg (struct loaded_l10nfile *domain_file,
 234                     struct binding *domainbinding, const char *encoding,
 235                     const char *msgid,
 236                     size_t *lengthp)
 237      internal_function;
 238 #else
 239 char *_nl_find_msg (struct loaded_l10nfile *domain_file,
 240                     struct binding *domainbinding, const char *msgid,
 241                     int convert, size_t *lengthp)
 242      internal_function;
 243 #endif
 244
 245 /* @@ begin of epilog @@ */
 246
 247 #endif /* gettextP.h  */