intl/gettextP.h

   1 /* Header describing internals of libintl library.
   2    Copyright (C) 1995-1999, 2000, 2001 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Written by Ulrich Drepper <drepper@cygnus.com>, 1995.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #ifndef _GETTEXTP_H
  22 #define _GETTEXTP_H
  23
  24 #include <stddef.h>             /* Get size_t.  */
  25
  26 #ifdef _LIBC
  27 # include "../iconv/gconv_int.h"
  28 #else
  29 # if HAVE_ICONV
  30 #  include <iconv.h>
  31 # endif
  32 #endif
  33
  34 #include "loadinfo.h"
  35
  36 #include "gettext.h"            /* Get nls_uint32.  */
  37
  38 /* @@ end of prolog @@ */
  39
  40 #ifndef PARAMS
  41 # if __STDC__
  42 #  define PARAMS(args) args
  43 # else
  44 #  define PARAMS(args) ()
  45 # endif
  46 #endif
  47
  48 #ifndef internal_function
  49 # define internal_function
  50 #endif
  51
  52 /* Tell the compiler when a conditional or integer expression is
  53    almost always true or almost always false.  */
  54 #ifndef HAVE_BUILTIN_EXPECT
  55 # define __builtin_expect(expr, val) (expr)
  56 #endif
  57
  58 #ifndef W
  59 # define W(flag, data) ((flag) ? SWAP (data) : (data))
  60 #endif
  61
  62
  63 #ifdef _LIBC
  64 # include <byteswap.h>
  65 # define SWAP(i) bswap_32 (i)
  66 #else
  67 static nls_uint32 SWAP PARAMS ((nls_uint32 i));
  68
  69 static inline nls_uint32
  70 SWAP (i)
  71      nls_uint32 i;
  72 {
  73   return (i << 24) | ((i & 0xff00) << 8) | ((i >> 8) & 0xff00) | (i >> 24);
  74 }
  75 #endif
  76
  77
  78 /* In-memory representation of system dependent string.  */
  79 struct sysdep_string_desc
  80 {
  81   /* Length of addressed string, including the trailing NUL.  */
  82   size_t length;
  83   /* Pointer to addressed string.  */
  84   const char *pointer;
  85 };
  86
  87 /* The representation of an opened message catalog.  */
  88 struct loaded_domain
  89 {
  90   /* Pointer to memory containing the .mo file.  */
  91   const char *data;
  92   /* 1 if the memory is mmap()ed, 0 if the memory is malloc()ed.  */
  93   int use_mmap;
  94   /* Size of mmap()ed memory.  */
  95   size_t mmap_size;
  96   /* 1 if the .mo file uses a different endianness than this machine.  */
  97   int must_swap;
  98   /* Pointer to additional malloc()ed memory.  */
  99   void *malloced;
 100
 101   /* Number of static strings pairs.  */
 102   nls_uint32 nstrings;
 103   /* Pointer to descriptors of original strings in the file.  */
 104   const struct string_desc *orig_tab;
 105   /* Pointer to descriptors of translated strings in the file.  */
 106   const struct string_desc *trans_tab;
 107
 108   /* Number of system dependent strings pairs.  */
 109   nls_uint32 n_sysdep_strings;
 110   /* Pointer to descriptors of original sysdep strings.  */
 111   const struct sysdep_string_desc *orig_sysdep_tab;
 112   /* Pointer to descriptors of translated sysdep strings.  */
 113   const struct sysdep_string_desc *trans_sysdep_tab;
 114
 115   /* Size of hash table.  */
 116   nls_uint32 hash_size;
 117   /* Pointer to hash table.  */
 118   const nls_uint32 *hash_tab;
 119   /* 1 if the hash table uses a different endianness than this machine.  */
 120   int must_swap_hash_tab;
 121
 122   int codeset_cntr;
 123 #ifdef _LIBC
 124   __gconv_t conv;
 125 #else
 126 # if HAVE_ICONV
 127   iconv_t conv;
 128 # endif
 129 #endif
 130   char **conv_tab;
 131
 132   struct expression *plural;
 133   unsigned long int nplurals;
 134 };
 135
 136 /* We want to allocate a string at the end of the struct.  But ISO C
 137    doesn't allow zero sized arrays.  */
 138 #ifdef __GNUC__
 139 # define ZERO 0
 140 #else
 141 # define ZERO 1
 142 #endif
 143
 144 /* A set of settings bound to a message domain.  Used to store settings
 145    from bindtextdomain() and bind_textdomain_codeset().  */
 146 struct binding
 147 {
 148   struct binding *next;
 149   char *dirname;
 150   int codeset_cntr;     /* Incremented each time codeset changes.  */
 151   char *codeset;
 152   char domainname[ZERO];
 153 };
 154
 155 /* A counter which is incremented each time some previous translations
 156    become invalid.
 157    This variable is part of the external ABI of the GNU libintl.  */
 158 extern int _nl_msg_cat_cntr;
 159
 160 struct loaded_l10nfile *_nl_find_domain PARAMS ((const char *__dirname,
 161                                                  char *__locale,
 162                                                  const char *__domainname,
 163                                               struct binding *__domainbinding))
 164      internal_function;
 165 void _nl_load_domain PARAMS ((struct loaded_l10nfile *__domain,
 166                               struct binding *__domainbinding))
 167      internal_function;
 168 void _nl_unload_domain PARAMS ((struct loaded_domain *__domain))
 169      internal_function;
 170 const char *_nl_init_domain_conv PARAMS ((struct loaded_l10nfile *__domain_file,
 171                                           struct loaded_domain *__domain,
 172                                           struct binding *__domainbinding))
 173      internal_function;
 174 void _nl_free_domain_conv PARAMS ((struct loaded_domain *__domain))
 175      internal_function;
 176
 177 char *_nl_find_msg PARAMS ((struct loaded_l10nfile *domain_file,
 178                             struct binding *domainbinding,
 179                             const char *msgid, size_t *lengthp))
 180      internal_function;
 181
 182 #ifdef _LIBC
 183 extern char *__gettext PARAMS ((const char *__msgid));
 184 extern char *__dgettext PARAMS ((const char *__domainname,
 185                                  const char *__msgid));
 186 extern char *__dcgettext PARAMS ((const char *__domainname,
 187                                   const char *__msgid, int __category));
 188 extern char *__ngettext PARAMS ((const char *__msgid1, const char *__msgid2,
 189                                  unsigned long int __n));
 190 extern char *__dngettext PARAMS ((const char *__domainname,
 191                                   const char *__msgid1, const char *__msgid2,
 192                                   unsigned long int n));
 193 extern char *__dcngettext PARAMS ((const char *__domainname,
 194                                    const char *__msgid1, const char *__msgid2,
 195                                    unsigned long int __n, int __category));
 196 extern char *__dcigettext PARAMS ((const char *__domainname,
 197                                    const char *__msgid1, const char *__msgid2,
 198                                    int __plural, unsigned long int __n,
 199                                    int __category));
 200 extern char *__textdomain PARAMS ((const char *__domainname));
 201 extern char *__bindtextdomain PARAMS ((const char *__domainname,
 202                                        const char *__dirname));
 203 extern char *__bind_textdomain_codeset PARAMS ((const char *__domainname,
 204                                                 const char *__codeset));
 205 #else
 206 extern char *gettext__ PARAMS ((const char *__msgid));
 207 extern char *dgettext__ PARAMS ((const char *__domainname,
 208                                  const char *__msgid));
 209 extern char *dcgettext__ PARAMS ((const char *__domainname,
 210                                   const char *__msgid, int __category));
 211 extern char *ngettext__ PARAMS ((const char *__msgid1, const char *__msgid2,
 212                                  unsigned long int __n));
 213 extern char *dngettext__ PARAMS ((const char *__domainname,
 214                                   const char *__msgid1, const char *__msgid2,
 215                                   unsigned long int __n));
 216 extern char *dcngettext__ PARAMS ((const char *__domainname,
 217                                    const char *__msgid1, const char *__msgid2,
 218                                    unsigned long int __n, int __category));
 219 extern char *dcigettext__ PARAMS ((const char *__domainname,
 220                                    const char *__msgid1, const char *__msgid2,
 221                                    int __plural, unsigned long int __n,
 222                                    int __category));
 223 extern char *textdomain__ PARAMS ((const char *__domainname));
 224 extern char *bindtextdomain__ PARAMS ((const char *__domainname,
 225                                        const char *__dirname));
 226 extern char *bind_textdomain_codeset__ PARAMS ((const char *__domainname,
 227                                                 const char *__codeset));
 228 #endif
 229
 230 /* @@ begin of epilog @@ */
 231
 232 #endif /* gettextP.h  */