intl/gettextP.h

   1 /* Header describing internals of libintl library.
   2    Copyright (C) 1995-1999, 2000, 2001, 2004-2005, 2007
   3    Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5    Written by Ulrich Drepper <drepper@cygnus.com>, 1995.
   6
   7    The GNU C Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Lesser General Public
   9    License as published by the Free Software Foundation; either
  10    version 2.1 of the License, or (at your option) any later version.
  11
  12    The GNU C Library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Lesser General Public License for more details.
  16
  17    You should have received a copy of the GNU Lesser General Public
  18    License along with the GNU C Library; if not, write to the Free
  19    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  20    02111-1307 USA.  */
  21
  22 #ifndef _GETTEXTP_H
  23 #define _GETTEXTP_H
  24
  25 #include <stddef.h>             /* Get size_t.  */
  26
  27 #ifdef _LIBC
  28 # include "../iconv/gconv_int.h"
  29 #else
  30 # if HAVE_ICONV
  31 #  include <iconv.h>
  32 # endif
  33 #endif
  34
  35 #include "loadinfo.h"
  36
  37 #include "gmo.h"                /* Get nls_uint32.  */
  38
  39 /* @@ end of prolog @@ */
  40
  41 #ifndef PARAMS
  42 # if __STDC__ || defined __GNUC__ || defined __SUNPRO_C || defined __cplusplus || __PROTOTYPES
  43 #  define PARAMS(args) args
  44 # else
  45 #  define PARAMS(args) ()
  46 # endif
  47 #endif
  48
  49 #ifndef internal_function
  50 # define internal_function
  51 #endif
  52
  53 #ifndef attribute_hidden
  54 # define attribute_hidden
  55 #endif
  56
  57 /* Tell the compiler when a conditional or integer expression is
  58    almost always true or almost always false.  */
  59 #ifndef HAVE_BUILTIN_EXPECT
  60 # define __builtin_expect(expr, val) (expr)
  61 #endif
  62
  63 #ifndef W
  64 # define W(flag, data) ((flag) ? SWAP (data) : (data))
  65 #endif
  66
  67
  68 #ifdef _LIBC
  69 # include <byteswap.h>
  70 # define SWAP(i) bswap_32 (i)
  71 #else
  72 static nls_uint32 SWAP PARAMS ((nls_uint32 i));
  73
  74 static inline nls_uint32
  75 SWAP (i)
  76      nls_uint32 i;
  77 {
  78   return (i << 24) | ((i & 0xff00) << 8) | ((i >> 8) & 0xff00) | (i >> 24);
  79 }
  80 #endif
  81
  82
  83 /* In-memory representation of system dependent string.  */
  84 struct sysdep_string_desc
  85 {
  86   /* Length of addressed string, including the trailing NUL.  */
  87   size_t length;
  88   /* Pointer to addressed string.  */
  89   const char *pointer;
  90 };
  91
  92 /* Cache of translated strings after charset conversion.
  93    Note: The strings are converted to the target encoding only on an as-needed
  94    basis.  */
  95 struct converted_domain
  96 {
  97   /* The target encoding name.  */
  98   const char *encoding;
  99   /* The descriptor for conversion from the message catalog's encoding to
 100      this target encoding.  */
 101 #ifdef _LIBC
 102   __gconv_t conv;
 103 #else
 104 # if HAVE_ICONV
 105   iconv_t conv;
 106 # endif
 107 #endif
 108   /* The table of translated strings after charset conversion.  */
 109   char **conv_tab;
 110 };
 111
 112 /* The representation of an opened message catalog.  */
 113 struct loaded_domain
 114 {
 115   /* Pointer to memory containing the .mo file.  */
 116   const char *data;
 117   /* 1 if the memory is mmap()ed, 0 if the memory is malloc()ed.  */
 118   int use_mmap;
 119   /* Size of mmap()ed memory.  */
 120   size_t mmap_size;
 121   /* 1 if the .mo file uses a different endianness than this machine.  */
 122   int must_swap;
 123   /* Pointer to additional malloc()ed memory.  */
 124   void *malloced;
 125
 126   /* Number of static strings pairs.  */
 127   nls_uint32 nstrings;
 128   /* Pointer to descriptors of original strings in the file.  */
 129   const struct string_desc *orig_tab;
 130   /* Pointer to descriptors of translated strings in the file.  */
 131   const struct string_desc *trans_tab;
 132
 133   /* Number of system dependent strings pairs.  */
 134   nls_uint32 n_sysdep_strings;
 135   /* Pointer to descriptors of original sysdep strings.  */
 136   const struct sysdep_string_desc *orig_sysdep_tab;
 137   /* Pointer to descriptors of translated sysdep strings.  */
 138   const struct sysdep_string_desc *trans_sysdep_tab;
 139
 140   /* Size of hash table.  */
 141   nls_uint32 hash_size;
 142   /* Pointer to hash table.  */
 143   const nls_uint32 *hash_tab;
 144   /* 1 if the hash table uses a different endianness than this machine.  */
 145   int must_swap_hash_tab;
 146
 147   /* Cache of charset conversions of the translated strings.  */
 148   struct converted_domain *conversions;
 149   size_t nconversions;
 150   __libc_rwlock_define (, conversions_lock);
 151
 152   const struct expression *plural;
 153   unsigned long int nplurals;
 154 };
 155
 156 /* We want to allocate a string at the end of the struct.  But ISO C
 157    doesn't allow zero sized arrays.  */
 158 #ifdef __GNUC__
 159 # define ZERO 0
 160 #else
 161 # define ZERO 1
 162 #endif
 163
 164 /* A set of settings bound to a message domain.  Used to store settings
 165    from bindtextdomain() and bind_textdomain_codeset().  */
 166 struct binding
 167 {
 168   struct binding *next;
 169   char *dirname;
 170   char *codeset;
 171   char domainname[ZERO];
 172 };
 173
 174 /* A counter which is incremented each time some previous translations
 175    become invalid.
 176    This variable is part of the external ABI of the GNU libintl.  */
 177 extern int _nl_msg_cat_cntr;
 178
 179 #ifndef _LIBC
 180 const char *_nl_locale_name PARAMS ((int category, const char *categoryname));
 181 #endif
 182
 183 struct loaded_l10nfile *_nl_find_domain PARAMS ((const char *__dirname,
 184                                                  char *__locale,
 185                                                  const char *__domainname,
 186                                               struct binding *__domainbinding))
 187      internal_function;
 188 void _nl_load_domain PARAMS ((struct loaded_l10nfile *__domain,
 189                               struct binding *__domainbinding))
 190      internal_function;
 191
 192 char *_nl_find_msg PARAMS ((struct loaded_l10nfile *domain_file,
 193                             struct binding *domainbinding, const char *msgid,
 194                             int convert, size_t *lengthp))
 195      internal_function;
 196
 197 #ifdef _LIBC
 198 extern char *__gettext PARAMS ((const char *__msgid));
 199 extern char *__dgettext PARAMS ((const char *__domainname,
 200                                  const char *__msgid));
 201 extern char *__dcgettext PARAMS ((const char *__domainname,
 202                                   const char *__msgid, int __category));
 203 extern char *__ngettext PARAMS ((const char *__msgid1, const char *__msgid2,
 204                                  unsigned long int __n));
 205 extern char *__dngettext PARAMS ((const char *__domainname,
 206                                   const char *__msgid1, const char *__msgid2,
 207                                   unsigned long int n));
 208 extern char *__dcngettext PARAMS ((const char *__domainname,
 209                                    const char *__msgid1, const char *__msgid2,
 210                                    unsigned long int __n, int __category));
 211 extern char *__dcigettext PARAMS ((const char *__domainname,
 212                                    const char *__msgid1, const char *__msgid2,
 213                                    int __plural, unsigned long int __n,
 214                                    int __category));
 215 extern char *__textdomain PARAMS ((const char *__domainname));
 216 extern char *__bindtextdomain PARAMS ((const char *__domainname,
 217                                        const char *__dirname));
 218 extern char *__bind_textdomain_codeset PARAMS ((const char *__domainname,
 219                                                 const char *__codeset));
 220 extern void _nl_finddomain_subfreeres PARAMS ((void)) attribute_hidden;
 221 extern void _nl_unload_domain PARAMS ((struct loaded_domain *__domain))
 222      internal_function attribute_hidden;
 223 #else
 224 extern char *libintl_gettext PARAMS ((const char *__msgid));
 225 extern char *libintl_dgettext PARAMS ((const char *__domainname,
 226                                        const char *__msgid));
 227 extern char *libintl_dcgettext PARAMS ((const char *__domainname,
 228                                         const char *__msgid, int __category));
 229 extern char *libintl_ngettext PARAMS ((const char *__msgid1,
 230                                        const char *__msgid2,
 231                                        unsigned long int __n));
 232 extern char *libintl_dngettext PARAMS ((const char *__domainname,
 233                                         const char *__msgid1,
 234                                         const char *__msgid2,
 235                                         unsigned long int __n));
 236 extern char *libintl_dcngettext PARAMS ((const char *__domainname,
 237                                          const char *__msgid1,
 238                                          const char *__msgid2,
 239                                          unsigned long int __n,
 240                                          int __category));
 241 extern char *libintl_dcigettext PARAMS ((const char *__domainname,
 242                                          const char *__msgid1,
 243                                          const char *__msgid2,
 244                                          int __plural, unsigned long int __n,
 245                                          int __category));
 246 extern char *libintl_textdomain PARAMS ((const char *__domainname));
 247 extern char *libintl_bindtextdomain PARAMS ((const char *__domainname,
 248                                              const char *__dirname));
 249 extern char *libintl_bind_textdomain_codeset PARAMS ((const char *__domainname,
 250                                                       const char *__codeset));
 251 #endif
 252
 253 /* @@ begin of epilog @@ */
 254
 255 #endif /* gettextP.h  */