intl/gettextP.h

   1 /* Header describing internals of libintl library.
   2    Copyright (C) 1995-1999, 2000, 2001, 2004 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 "gmo.h"                /* Get nls_uint32.  */
  37
  38 /* @@ end of prolog @@ */
  39
  40 #ifndef PARAMS
  41 # if __STDC__ || defined __GNUC__ || defined __SUNPRO_C || defined __cplusplus || __PROTOTYPES
  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 #ifndef attribute_hidden
  53 # define attribute_hidden
  54 #endif
  55
  56 /* Tell the compiler when a conditional or integer expression is
  57    almost always true or almost always false.  */
  58 #ifndef HAVE_BUILTIN_EXPECT
  59 # define __builtin_expect(expr, val) (expr)
  60 #endif
  61
  62 #ifndef W
  63 # define W(flag, data) ((flag) ? SWAP (data) : (data))
  64 #endif
  65
  66
  67 #ifdef _LIBC
  68 # include <byteswap.h>
  69 # define SWAP(i) bswap_32 (i)
  70 #else
  71 static nls_uint32 SWAP PARAMS ((nls_uint32 i));
  72
  73 static inline nls_uint32
  74 SWAP (i)
  75      nls_uint32 i;
  76 {
  77   return (i << 24) | ((i & 0xff00) << 8) | ((i >> 8) & 0xff00) | (i >> 24);
  78 }
  79 #endif
  80
  81
  82 /* In-memory representation of system dependent string.  */
  83 struct sysdep_string_desc
  84 {
  85   /* Length of addressed string, including the trailing NUL.  */
  86   size_t length;
  87   /* Pointer to addressed string.  */
  88   const char *pointer;
  89 };
  90
  91 /* The representation of an opened message catalog.  */
  92 struct loaded_domain
  93 {
  94   /* Pointer to memory containing the .mo file.  */
  95   const char *data;
  96   /* 1 if the memory is mmap()ed, 0 if the memory is malloc()ed.  */
  97   int use_mmap;
  98   /* Size of mmap()ed memory.  */
  99   size_t mmap_size;
 100   /* 1 if the .mo file uses a different endianness than this machine.  */
 101   int must_swap;
 102   /* Pointer to additional malloc()ed memory.  */
 103   void *malloced;
 104
 105   /* Number of static strings pairs.  */
 106   nls_uint32 nstrings;
 107   /* Pointer to descriptors of original strings in the file.  */
 108   const struct string_desc *orig_tab;
 109   /* Pointer to descriptors of translated strings in the file.  */
 110   const struct string_desc *trans_tab;
 111
 112   /* Number of system dependent strings pairs.  */
 113   nls_uint32 n_sysdep_strings;
 114   /* Pointer to descriptors of original sysdep strings.  */
 115   const struct sysdep_string_desc *orig_sysdep_tab;
 116   /* Pointer to descriptors of translated sysdep strings.  */
 117   const struct sysdep_string_desc *trans_sysdep_tab;
 118
 119   /* Size of hash table.  */
 120   nls_uint32 hash_size;
 121   /* Pointer to hash table.  */
 122   const nls_uint32 *hash_tab;
 123   /* 1 if the hash table uses a different endianness than this machine.  */
 124   int must_swap_hash_tab;
 125
 126   int codeset_cntr;
 127 #ifdef _LIBC
 128   __gconv_t conv;
 129 #else
 130 # if HAVE_ICONV
 131   iconv_t conv;
 132 # endif
 133 #endif
 134   char **conv_tab;
 135
 136   struct expression *plural;
 137   unsigned long int nplurals;
 138 };
 139
 140 /* We want to allocate a string at the end of the struct.  But ISO C
 141    doesn't allow zero sized arrays.  */
 142 #ifdef __GNUC__
 143 # define ZERO 0
 144 #else
 145 # define ZERO 1
 146 #endif
 147
 148 /* A set of settings bound to a message domain.  Used to store settings
 149    from bindtextdomain() and bind_textdomain_codeset().  */
 150 struct binding
 151 {
 152   struct binding *next;
 153   char *dirname;
 154   int codeset_cntr;     /* Incremented each time codeset changes.  */
 155   char *codeset;
 156   char domainname[ZERO];
 157 };
 158
 159 /* A counter which is incremented each time some previous translations
 160    become invalid.
 161    This variable is part of the external ABI of the GNU libintl.  */
 162 extern int _nl_msg_cat_cntr;
 163
 164 #ifndef _LIBC
 165 const char *_nl_locale_name PARAMS ((int category, const char *categoryname));
 166 #endif
 167
 168 struct loaded_l10nfile *_nl_find_domain PARAMS ((const char *__dirname,
 169                                                  char *__locale,
 170                                                  const char *__domainname,
 171                                               struct binding *__domainbinding))
 172      internal_function;
 173 void _nl_load_domain PARAMS ((struct loaded_l10nfile *__domain,
 174                               struct binding *__domainbinding))
 175      internal_function;
 176 const char *_nl_init_domain_conv PARAMS ((struct loaded_l10nfile *__domain_file,
 177                                           struct loaded_domain *__domain,
 178                                           struct binding *__domainbinding))
 179      internal_function;
 180 void _nl_free_domain_conv PARAMS ((struct loaded_domain *__domain))
 181      internal_function;
 182
 183 char *_nl_find_msg PARAMS ((struct loaded_l10nfile *domain_file,
 184                             struct binding *domainbinding,
 185                             const char *msgid, size_t *lengthp))
 186      internal_function;
 187
 188 #ifdef _LIBC
 189 extern char *__gettext PARAMS ((const char *__msgid));
 190 extern char *__dgettext PARAMS ((const char *__domainname,
 191                                  const char *__msgid));
 192 extern char *__dcgettext PARAMS ((const char *__domainname,
 193                                   const char *__msgid, int __category));
 194 extern char *__ngettext PARAMS ((const char *__msgid1, const char *__msgid2,
 195                                  unsigned long int __n));
 196 extern char *__dngettext PARAMS ((const char *__domainname,
 197                                   const char *__msgid1, const char *__msgid2,
 198                                   unsigned long int n));
 199 extern char *__dcngettext PARAMS ((const char *__domainname,
 200                                    const char *__msgid1, const char *__msgid2,
 201                                    unsigned long int __n, int __category));
 202 extern char *__dcigettext PARAMS ((const char *__domainname,
 203                                    const char *__msgid1, const char *__msgid2,
 204                                    int __plural, unsigned long int __n,
 205                                    int __category));
 206 extern char *__textdomain PARAMS ((const char *__domainname));
 207 extern char *__bindtextdomain PARAMS ((const char *__domainname,
 208                                        const char *__dirname));
 209 extern char *__bind_textdomain_codeset PARAMS ((const char *__domainname,
 210                                                 const char *__codeset));
 211 extern void _nl_finddomain_subfreeres PARAMS ((void)) attribute_hidden;
 212 extern void _nl_unload_domain PARAMS ((struct loaded_domain *__domain))
 213      internal_function attribute_hidden;
 214 #else
 215 extern char *libintl_gettext PARAMS ((const char *__msgid));
 216 extern char *libintl_dgettext PARAMS ((const char *__domainname,
 217                                        const char *__msgid));
 218 extern char *libintl_dcgettext PARAMS ((const char *__domainname,
 219                                         const char *__msgid, int __category));
 220 extern char *libintl_ngettext PARAMS ((const char *__msgid1,
 221                                        const char *__msgid2,
 222                                        unsigned long int __n));
 223 extern char *libintl_dngettext PARAMS ((const char *__domainname,
 224                                         const char *__msgid1,
 225                                         const char *__msgid2,
 226                                         unsigned long int __n));
 227 extern char *libintl_dcngettext PARAMS ((const char *__domainname,
 228                                          const char *__msgid1,
 229                                          const char *__msgid2,
 230                                          unsigned long int __n,
 231                                          int __category));
 232 extern char *libintl_dcigettext PARAMS ((const char *__domainname,
 233                                          const char *__msgid1,
 234                                          const char *__msgid2,
 235                                          int __plural, unsigned long int __n,
 236                                          int __category));
 237 extern char *libintl_textdomain PARAMS ((const char *__domainname));
 238 extern char *libintl_bindtextdomain PARAMS ((const char *__domainname,
 239                                              const char *__dirname));
 240 extern char *libintl_bind_textdomain_codeset PARAMS ((const char *__domainname,
 241                                                       const char *__codeset));
 242 #endif
 243
 244 /* @@ begin of epilog @@ */
 245
 246 #endif /* gettextP.h  */