intl/gettextP.h

   1 /* Header describing internals of libintl library.
   2    Copyright (C) 1995-1999, 2000-2003 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  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 #include "loadinfo.h"
  34
  35 #include "gmo.h"                /* Get nls_uint32.  */
  36
  37 /* @@ end of prolog @@ */
  38
  39 #ifndef PARAMS
  40 # if __STDC__ || defined __GNUC__ || defined __SUNPRO_C || defined __cplusplus || __PROTOTYPES
  41 #  define PARAMS(args) args
  42 # else
  43 #  define PARAMS(args) ()
  44 # endif
  45 #endif
  46
  47 #ifndef internal_function
  48 # define internal_function
  49 #endif
  50
  51 #ifndef attribute_hidden
  52 # define attribute_hidden
  53 #endif
  54
  55 /* Tell the compiler when a conditional or integer expression is
  56    almost always true or almost always false.  */
  57 #ifndef HAVE_BUILTIN_EXPECT
  58 # define __builtin_expect(expr, val) (expr)
  59 #endif
  60
  61 #ifndef W
  62 # define W(flag, data) ((flag) ? SWAP (data) : (data))
  63 #endif
  64
  65
  66 #ifdef _LIBC
  67 # include <byteswap.h>
  68 # define SWAP(i) bswap_32 (i)
  69 #else
  70
  71 #ifndef __GNUC__
  72 #define inline /* nothing: don't inline if the compiler is not GCC */
  73 #endif
  74
  75 static inline nls_uint32
  76 SWAP (i)
  77      nls_uint32 i;
  78 {
  79   return (i << 24) | ((i & 0xff00) << 8) | ((i >> 8) & 0xff00) | (i >> 24);
  80 }
  81 #endif
  82
  83
  84 /* In-memory representation of system dependent string.  */
  85 struct sysdep_string_desc
  86 {
  87   /* Length of addressed string, including the trailing NUL.  */
  88   size_t length;
  89   /* Pointer to addressed string.  */
  90   const char *pointer;
  91 };
  92
  93 /* The representation of an opened message catalog.  */
  94 struct loaded_domain
  95 {
  96   /* Pointer to memory containing the .mo file.  */
  97   const char *data;
  98   /* 1 if the memory is mmap()ed, 0 if the memory is malloc()ed.  */
  99   int use_mmap;
 100   /* Size of mmap()ed memory.  */
 101   size_t mmap_size;
 102   /* 1 if the .mo file uses a different endianness than this machine.  */
 103   int must_swap;
 104   /* Pointer to additional malloc()ed memory.  */
 105   void *malloced;
 106
 107   /* Number of static strings pairs.  */
 108   nls_uint32 nstrings;
 109   /* Pointer to descriptors of original strings in the file.  */
 110   const struct string_desc *orig_tab;
 111   /* Pointer to descriptors of translated strings in the file.  */
 112   const struct string_desc *trans_tab;
 113
 114   /* Number of system dependent strings pairs.  */
 115   nls_uint32 n_sysdep_strings;
 116   /* Pointer to descriptors of original sysdep strings.  */
 117   const struct sysdep_string_desc *orig_sysdep_tab;
 118   /* Pointer to descriptors of translated sysdep strings.  */
 119   const struct sysdep_string_desc *trans_sysdep_tab;
 120
 121   /* Size of hash table.  */
 122   nls_uint32 hash_size;
 123   /* Pointer to hash table.  */
 124   const nls_uint32 *hash_tab;
 125   /* 1 if the hash table uses a different endianness than this machine.  */
 126   int must_swap_hash_tab;
 127
 128   int codeset_cntr;
 129 #ifdef _LIBC
 130   __gconv_t conv;
 131 #else
 132 # if HAVE_ICONV
 133   iconv_t conv;
 134 # endif
 135 #endif
 136   char **conv_tab;
 137
 138   struct expression *plural;
 139   unsigned long int nplurals;
 140 };
 141
 142 /* We want to allocate a string at the end of the struct.  But ISO C
 143    doesn't allow zero sized arrays.  */
 144 #ifdef __GNUC__
 145 # define ZERO 0
 146 #else
 147 # define ZERO 1
 148 #endif
 149
 150 /* A set of settings bound to a message domain.  Used to store settings
 151    from bindtextdomain() and bind_textdomain_codeset().  */
 152 struct binding
 153 {
 154   struct binding *next;
 155   char *dirname;
 156   int codeset_cntr;     /* Incremented each time codeset changes.  */
 157   char *codeset;
 158   char domainname[ZERO];
 159 };
 160
 161 /* A counter which is incremented each time some previous translations
 162    become invalid.
 163    This variable is part of the external ABI of the GNU libintl.  */
 164 extern int _nl_msg_cat_cntr;
 165
 166 #ifndef _LIBC
 167 const char *_nl_locale_name PARAMS ((int category, const char *categoryname));
 168 #endif
 169
 170 struct loaded_l10nfile *_nl_find_domain PARAMS ((const char *__dirname,
 171                                                  char *__locale,
 172                                                  const char *__domainname,
 173                                               struct binding *__domainbinding))
 174      internal_function;
 175 void _nl_load_domain PARAMS ((struct loaded_l10nfile *__domain,
 176                               struct binding *__domainbinding))
 177      internal_function;
 178 void _nl_unload_domain PARAMS ((struct loaded_domain *__domain))
 179      internal_function;
 180 const char *_nl_init_domain_conv PARAMS ((struct loaded_l10nfile *__domain_file,
 181                                           struct loaded_domain *__domain,
 182                                           struct binding *__domainbinding))
 183      internal_function;
 184 void _nl_free_domain_conv PARAMS ((struct loaded_domain *__domain))
 185      internal_function;
 186
 187 char *_nl_find_msg PARAMS ((struct loaded_l10nfile *domain_file,
 188                             struct binding *domainbinding,
 189                             const char *msgid, size_t *lengthp))
 190      internal_function;
 191
 192 #ifdef _LIBC
 193 extern char *__gettext PARAMS ((const char *__msgid));
 194 extern char *__dgettext PARAMS ((const char *__domainname,
 195                                  const char *__msgid));
 196 extern char *__dcgettext PARAMS ((const char *__domainname,
 197                                   const char *__msgid, int __category));
 198 extern char *__ngettext PARAMS ((const char *__msgid1, const char *__msgid2,
 199                                  unsigned long int __n));
 200 extern char *__dngettext PARAMS ((const char *__domainname,
 201                                   const char *__msgid1, const char *__msgid2,
 202                                   unsigned long int n));
 203 extern char *__dcngettext PARAMS ((const char *__domainname,
 204                                    const char *__msgid1, const char *__msgid2,
 205                                    unsigned long int __n, int __category));
 206 extern char *__dcigettext PARAMS ((const char *__domainname,
 207                                    const char *__msgid1, const char *__msgid2,
 208                                    int __plural, unsigned long int __n,
 209                                    int __category));
 210 extern char *__textdomain PARAMS ((const char *__domainname));
 211 extern char *__bindtextdomain PARAMS ((const char *__domainname,
 212                                        const char *__dirname));
 213 extern char *__bind_textdomain_codeset PARAMS ((const char *__domainname,
 214                                                 const char *__codeset));
 215 #else
 216 /* Declare the exported libintl_* functions, in a way that allows us to
 217    call them under their real name.  */
 218 # define _INTL_REDIRECT_MACROS
 219 # include "libintl.h"
 220 extern char *libintl_dcigettext PARAMS ((const char *__domainname,
 221                                          const char *__msgid1,
 222                                          const char *__msgid2,
 223                                          int __plural, unsigned long int __n,
 224                                          int __category));
 225 #endif
 226
 227 /* @@ begin of epilog @@ */
 228
 229 #endif /* gettextP.h  */