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., 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 #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 static inline nls_uint32
  71 SWAP (i)
  72      nls_uint32 i;
  73 {
  74   return (i << 24) | ((i & 0xff00) << 8) | ((i >> 8) & 0xff00) | (i >> 24);
  75 }
  76 #endif
  77
  78
  79 /* In-memory representation of system dependent string.  */
  80 struct sysdep_string_desc
  81 {
  82   /* Length of addressed string, including the trailing NUL.  */
  83   size_t length;
  84   /* Pointer to addressed string.  */
  85   const char *pointer;
  86 };
  87
  88 /* The representation of an opened message catalog.  */
  89 struct loaded_domain
  90 {
  91   /* Pointer to memory containing the .mo file.  */
  92   const char *data;
  93   /* 1 if the memory is mmap()ed, 0 if the memory is malloc()ed.  */
  94   int use_mmap;
  95   /* Size of mmap()ed memory.  */
  96   size_t mmap_size;
  97   /* 1 if the .mo file uses a different endianness than this machine.  */
  98   int must_swap;
  99   /* Pointer to additional malloc()ed memory.  */
 100   void *malloced;
 101
 102   /* Number of static strings pairs.  */
 103   nls_uint32 nstrings;
 104   /* Pointer to descriptors of original strings in the file.  */
 105   const struct string_desc *orig_tab;
 106   /* Pointer to descriptors of translated strings in the file.  */
 107   const struct string_desc *trans_tab;
 108
 109   /* Number of system dependent strings pairs.  */
 110   nls_uint32 n_sysdep_strings;
 111   /* Pointer to descriptors of original sysdep strings.  */
 112   const struct sysdep_string_desc *orig_sysdep_tab;
 113   /* Pointer to descriptors of translated sysdep strings.  */
 114   const struct sysdep_string_desc *trans_sysdep_tab;
 115
 116   /* Size of hash table.  */
 117   nls_uint32 hash_size;
 118   /* Pointer to hash table.  */
 119   const nls_uint32 *hash_tab;
 120   /* 1 if the hash table uses a different endianness than this machine.  */
 121   int must_swap_hash_tab;
 122
 123   int codeset_cntr;
 124 #ifdef _LIBC
 125   __gconv_t conv;
 126 #else
 127 # if HAVE_ICONV
 128   iconv_t conv;
 129 # endif
 130 #endif
 131   char **conv_tab;
 132
 133   struct expression *plural;
 134   unsigned long int nplurals;
 135 };
 136
 137 /* We want to allocate a string at the end of the struct.  But ISO C
 138    doesn't allow zero sized arrays.  */
 139 #ifdef __GNUC__
 140 # define ZERO 0
 141 #else
 142 # define ZERO 1
 143 #endif
 144
 145 /* A set of settings bound to a message domain.  Used to store settings
 146    from bindtextdomain() and bind_textdomain_codeset().  */
 147 struct binding
 148 {
 149   struct binding *next;
 150   char *dirname;
 151   int codeset_cntr;     /* Incremented each time codeset changes.  */
 152   char *codeset;
 153   char domainname[ZERO];
 154 };
 155
 156 /* A counter which is incremented each time some previous translations
 157    become invalid.
 158    This variable is part of the external ABI of the GNU libintl.  */
 159 extern int _nl_msg_cat_cntr;
 160
 161 #ifndef _LIBC
 162 const char *_nl_locale_name PARAMS ((int category, const char *categoryname));
 163 #endif
 164
 165 struct loaded_l10nfile *_nl_find_domain PARAMS ((const char *__dirname,
 166                                                  char *__locale,
 167                                                  const char *__domainname,
 168                                               struct binding *__domainbinding))
 169      internal_function;
 170 void _nl_load_domain PARAMS ((struct loaded_l10nfile *__domain,
 171                               struct binding *__domainbinding))
 172      internal_function;
 173 void _nl_unload_domain PARAMS ((struct loaded_domain *__domain))
 174      internal_function;
 175 const char *_nl_init_domain_conv PARAMS ((struct loaded_l10nfile *__domain_file,
 176                                           struct loaded_domain *__domain,
 177                                           struct binding *__domainbinding))
 178      internal_function;
 179 void _nl_free_domain_conv PARAMS ((struct loaded_domain *__domain))
 180      internal_function;
 181
 182 char *_nl_find_msg PARAMS ((struct loaded_l10nfile *domain_file,
 183                             struct binding *domainbinding,
 184                             const char *msgid, size_t *lengthp))
 185      internal_function;
 186
 187 #ifdef _LIBC
 188 extern char *__gettext PARAMS ((const char *__msgid));
 189 extern char *__dgettext PARAMS ((const char *__domainname,
 190                                  const char *__msgid));
 191 extern char *__dcgettext PARAMS ((const char *__domainname,
 192                                   const char *__msgid, int __category));
 193 extern char *__ngettext PARAMS ((const char *__msgid1, const char *__msgid2,
 194                                  unsigned long int __n));
 195 extern char *__dngettext PARAMS ((const char *__domainname,
 196                                   const char *__msgid1, const char *__msgid2,
 197                                   unsigned long int n));
 198 extern char *__dcngettext PARAMS ((const char *__domainname,
 199                                    const char *__msgid1, const char *__msgid2,
 200                                    unsigned long int __n, int __category));
 201 extern char *__dcigettext PARAMS ((const char *__domainname,
 202                                    const char *__msgid1, const char *__msgid2,
 203                                    int __plural, unsigned long int __n,
 204                                    int __category));
 205 extern char *__textdomain PARAMS ((const char *__domainname));
 206 extern char *__bindtextdomain PARAMS ((const char *__domainname,
 207                                        const char *__dirname));
 208 extern char *__bind_textdomain_codeset PARAMS ((const char *__domainname,
 209                                                 const char *__codeset));
 210 #else
 211 /* Declare the exported libintl_* functions, in a way that allows us to
 212    call them under their real name.  */
 213 # define _INTL_REDIRECT_MACROS
 214 # include "libintl.h"
 215 extern char *libintl_dcigettext PARAMS ((const char *__domainname,
 216                                          const char *__msgid1,
 217                                          const char *__msgid2,
 218                                          int __plural, unsigned long int __n,
 219                                          int __category));
 220 #endif
 221
 222 /* @@ begin of epilog @@ */
 223
 224 #endif /* gettextP.h  */